A bidirectional clamping battery formation fixture

Abstract

The present invention belongs to the technical field of battery formation fixtures, and in particular relates to a bidirectional clamping battery formation fixture, comprising two support frames, a guide rod, a layer plate assembly, a screw rod assembly, a pushing mechanism, a support pad, a driving mechanism and a support plate; the screw rod assembly comprises multiple groups of screw rods, the screw rods comprise left-handed threads and right-handed threads, and a connecting position is formed between the left-handed threads and the right-handed threads; the support plate is provided with a bearing corresponding to the connecting position and a supporting hole corresponding to the guide rod, the connecting position is connected to the bearing, and the guide rod passes through the corresponding supporting hole; the pushing mechanism and the support pad are arranged at both ends of the screw rod assembly, the pushing mechanism is provided with a left-handed nut, the left-handed nut is connected to the left-handed thread, the support pad is provided with a right-handed nut, and the right-handed nut is connected to the right-handed thread; the pushing mechanism comprises a movable carrier, an elastic rubber plate and a pressure plate, the pressure plate is connected to the movable carrier screw and clamps the elastic rubber plate; the support pad is provided with a hard supporting surface parallel to the pressure plate; the driving mechanism is arranged on a support frame and connected to each screw rod.

Description

Technical Field

[0001] The invention belongs to the technical field of battery formation fixtures, and in particular relates to a bidirectional clamping battery formation fixture. Background Art

[0002] The battery formation fixture is used for battery formation; during battery formation, the battery is connected to a formation power source, and the battery is pressurized during battery formation to achieve pressure formation. For example, the Chinese utility model patent with authorization announcement number CN217405493U discloses a pressure formation device for a soft-pack battery with an adjustable spring module, which includes a gearbox and a front end plate, a drive motor and a reduction gearbox arranged on the gearbox and the front end plate, a rear end plate, multiple support shafts and multiple lead screws for connecting the gearbox and the front end plate and the rear end plate, and multiple layer plates equidistantly arranged between the gearbox and the front end plate and the rear end plate. The device also includes a spring module arranged between the gearbox and the front end plate and the rear end plate, the spring module including a reference plate mounted on the lead screw, a drive plate connected to the reference plate by special-shaped bolts and bolts, and a plurality of special-shaped bolts distributed in an array in the middle of the reference plate and the drive plate, the special-shaped bolt having a spring provided at the bottom thereof to adjust the compression amount of the spring sleeved on the special-shaped bolt by rotating the special-shaped bolt.

[0003] The technical solution disclosed in the above patent document utilizes a spring module to push the battery in one direction. If the formation fixture needs to form more batteries, the length of the fixture will be increased. Therefore, when pushing the battery, the stroke will be increased, and the battery clamping time will be increased.

[0004] For another example, the Chinese utility model patent with authorization announcement number CN218004990U discloses a forming fixture with a bidirectional clamping structure, including: two mounting seats, two groups of screw rod groups, a power mechanism, two groups of clamping mechanisms, a guide mechanism and a laminate; the two mounting seats are arranged opposite to each other; the guide mechanism is arranged and connected between the two mounting seats, and multiple groups of laminates are slidably connected to the guide mechanism; the two groups of screw rod groups are parallel to each other and are located on both sides of the laminate relative to each other; the screw rod group includes at least one screw rod, and the two ends of the screw rod are respectively provided with left-handed threads and right-handed threads, and a first nut sleeve is provided on the left-handed thread, and a second nut sleeve is provided on the right-handed thread; a clamping mechanism connects the first nuts of the two groups of screw rod groups, and the other group of clamping mechanisms connects the second nuts of the two groups of screw rod groups, and the laminate is located between the two clamping mechanisms; the power mechanism is connected to the screw rod, which is used to drive the screw rod to rotate, so that the two clamping mechanisms move toward each other to extrude the laminate, or move in the opposite direction to loosen the laminate. When the battery is pressed between the laminates, the power mechanism drives each screw rod to rotate simultaneously. Under the action of the left-handed thread and the right-handed thread of the screw rod, the two clamping mechanisms can move simultaneously and toward each other, so as to push the laminate to move along the guide mechanism and compress the battery. After the formation is completed, the power mechanism drives each screw rod to rotate in the opposite direction, so that the two clamping mechanisms move in the opposite direction and completely release the battery. Since the two clamping mechanisms move toward or in the opposite direction at the same time when the battery is clamped and released, the time for the power mechanism to drive the screw rod to rotate can be shortened, so that the two clamping mechanisms can compress or completely release the laminate, thereby improving efficiency and thus improving the efficiency of formation. It can be seen that this patent document can solve the problem of long movement time of the battery clamping spring module.

[0005] Since the above patent document utilizes two groups of clamping mechanisms to move synchronously to achieve the clamping of the layer plates. However, the clamping mechanism in the patent document also uses multiple independent compression springs, and the compression of the compression springs is used to maintain the pressure on the battery. Since the two clamping mechanisms move relative to each other to compress the battery; therefore, when the battery is compressed, there is no fixed support surface. When the springs are unevenly stressed, it is easy to cause the pressure plate connected to the spring to tilt. In addition, there are differences in the thickness of the batteries. When the batteries are compressed, there is a phenomenon that a single spring is overstressed, which in turn causes the pressure plate connected to the spring to tilt, resulting in uneven pressure during the battery formation process and the inability to accurately control the pressure of the battery during the formation process. Summary of the Invention

[0006] The object of the present invention is to provide a bidirectional clamping battery formation fixture, which is used to solve the problem that the current bidirectional clamping battery formation fixture will cause uneven force on the battery, resulting in the pressing plate tilting and squeezing the battery.

[0007] To achieve the above-mentioned purpose, an embodiment of the present invention provides a bidirectional clamping battery formation fixture, comprising two support frames, a guide rod arranged between the two support frames, and a plurality of layer plate assemblies sleeved on the guide rods, and flexible connectors are connected between adjacent layer plate assemblies; it also includes a screw assembly, a pushing mechanism, a support pad, a driving mechanism and a support plate; the screw assembly includes a plurality of groups of screws arranged between the two support frames, the screws include left-handed threads and right-handed threads, and a connecting position is formed between the left-handed threads and the right-handed threads; the support plate is provided with a bearing corresponding to the connecting position and a support hole corresponding to the guide rod, the connecting position is connected to the bearing, and the guide rod passes through the corresponding support hole; the pushing mechanism and the support pad The plates are arranged at both ends of the screw rod assembly, and the pushing mechanism is provided with a left-handed nut, the left-handed nut is connected to the left-handed thread, and the support pad is provided with a right-handed nut, and the right-handed nut is connected to the right-handed thread; the pushing mechanism includes a movable carrier, an elastic rubber plate and a pressure plate; the movable carrier is provided with a mounting hole for mounting the left-handed nut; the two side surfaces in the thickness direction of the elastic rubber plate are parallel to each other, and the elastic rubber plate and the pressure plate are sequentially arranged on the inner side of the movable carrier, and the pressure plate is connected to the movable carrier screw and clamps the elastic rubber plate; the support pad is provided with a hard supporting surface parallel to the pressure plate; the driving mechanism is arranged on one of the support frames and is connected to each of the screw rods for driving each of the screw rods to rotate synchronously.

[0008] Furthermore, the screw assembly includes four groups of screws; the driving mechanism includes a motor, a driving gear, two transition gears and four groups of driven gears, the four groups of driven gears are respectively arranged on the four screws, the driving gear is connected to the motor, the two transition gears are engaged on both sides of the driving gear, and are engaged with the two driven gears on the same side.

[0009] Furthermore, a plurality of through holes are distributed in the thickness direction of the elastic rubber plate.

[0010] Furthermore, the support plate is provided with an avoidance position for preventing the layer plate assembly from moving along the guide rod; the avoidance position enables the support plate to form two independent support structures.

[0011] Furthermore, a pressure detection device is provided on the support pad for detecting the clamping force of the battery formation.

[0012] Furthermore, the laminate assembly includes a laminate, an adjustment seat, a power connection plate and an elastic pressure block; the laminate is provided with a guide sleeve mounted on the corresponding guide rod, a slide groove is provided on one side of the laminate, the adjustment seat is slid in the slide groove, and the adjustment seat is provided with a connecting hole; the power connection plate is provided with a connecting part and a power connection part, the connecting part is connected to the adjustment seat, the power connection part extends to one side of the laminate, and the elastic pressure block is provided on the other side of the laminate; the bidirectional clamping battery formation fixture also includes an adjustment mechanism for adjusting the power connection plate of each laminate assembly; the adjustment mechanism includes an adjustment rod and a lifting assembly, the adjustment rod passes through the connecting hole of each adjustment seat, and the lifting assembly is connected to the adjustment rod for driving the adjustment rod to adjust up and down.

[0013] Furthermore, the lifting assembly includes two groups of racks, two groups of adjusting gears, a first lifting seat and an adjusting screw; the two groups of racks are respectively arranged on one side of the two support frames, and the two groups of adjusting gears are respectively arranged at both ends of the adjusting rod, and are engaged with the corresponding racks; the first lifting seat is connected to the adjusting rod, and the adjusting screw is connected to the first lifting seat, for adjusting the height of the first lifting seat.

[0014] Furthermore, the lifting assembly also includes a second lifting seat, the first lifting seat and the second lifting seat are respectively connected to the two ends of the adjusting rod, the first lifting seat and the second lifting seat are both arranged in the guide hole and the air avoidance hole, the air avoidance hole and the guide hole are arranged perpendicular to each other and are connected; the guide hole is connected to the corresponding rack, and the adjusting gear is arranged in the air avoidance hole.

[0015] Furthermore, a layer plate assembly closer to the support plate also includes a second adjusting gear and a second rack; the second adjusting gear is sleeved on the adjusting rod and is located on the adjusting seat, and a through hole is provided on the adjusting seat, and the second adjusting rack passes through the through hole and engages with the second adjusting gear; the second rack is fixedly connected to the laminate.

[0016] Furthermore, the adjusting rod includes two rotating shafts and a gear shaft, one end of the rotating shaft is connected to the adjusting gear, and the other end is provided with a mounting groove, the side wall of the mounting groove is provided with a waist-shaped countersunk hole, and the two ends of the gear shaft are provided with connecting flat positions, and the connecting flat positions extend into the corresponding mounting slots; the locking screw passes through the waist-shaped countersunk hole to lock the gear shaft, and the second adjusting gear is provided on the gear shaft.

[0017] The above one or more technical solutions in the bidirectional clamping battery formation fixture provided by the embodiment of the present invention have at least the following technical effects:

[0018] The bidirectional clamping battery formation fixture of the present invention can be arranged in the clamping position formed by adjacent layer plate assemblies. The driving mechanism drives the screw to rotate. Since the screw has a left-handed thread and a right-handed thread, and the pushing mechanism is provided with a left-handed nut that cooperates with the left-handed thread, and the support plate is provided with a right-handed nut that cooperates with the right-handed thread, the pushing mechanism and the support plate can move toward each other and push the layer plate assemblies to close together and clamp and squeeze the battery. When the pushing mechanism squeezes the battery, the elastic rubber plate will be squeezed and slightly deformed. Since the elastic rubber plate deforms along the thickness direction, it can form a large elastic force and will not cause the elastic rubber plate to deform too much. And because the support plate is provided with a hard support surface, even if there is a problem of uneven battery thickness, the thickness direction of the elastic rubber plate is used to support the pressure plate, which can effectively avoid the problem of the pressure plate tilting, thereby ensuring that the direction of the pressure applied to the battery can remain consistent, thereby controlling the pressure of the battery formation and ensuring that the battery is effectively and stably pressure-formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of a bidirectional clamping battery formation fixture provided in an embodiment of the present invention.

[0021] Figure 2 This is a structural diagram of the other side of the bidirectional clamping battery formation fixture provided by an embodiment of the present invention.

[0022] Figure 3 This is a structural diagram of the driving mechanism portion of the bidirectional clamping battery formation fixture provided in an embodiment of the present invention.

[0023] Figure 4 This is a structural diagram of the pushing mechanism of the bidirectional clamping battery formation fixture provided by an embodiment of the present invention.

[0024] Figure 5 A cross-sectional view of a pushing mechanism of a bidirectional clamping battery formation fixture provided in an embodiment of the present invention.

[0025] Figure 6 A structural diagram of the support pad of the bidirectional clamping battery formation fixture provided in an embodiment of the present invention.

[0026] Figure 7 A structural diagram of the layer plate assembly of the bidirectional clamping battery formation fixture provided in an embodiment of the present invention.

[0027] Figure 8 This is a structural diagram of the other side of the layer plate assembly of the bidirectional clamping battery formation fixture provided by an embodiment of the present invention.

[0028] Figure 9 A structural diagram of the adjustment mechanism of the bidirectional clamping battery formation fixture provided in an embodiment of the present invention.

[0029] Figure 10 for Figure 9 A partial enlarged view of .

[0030] Figure 11 This is a structural diagram of the other side of the adjustment mechanism of the bidirectional clamping battery formation fixture provided by an embodiment of the present invention.

[0031] Figure 12 for Figure 11 A partial enlarged view of .

[0032] Figure 13 for Figure 11 A partial enlarged view of the gear shaft portion. DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0036] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0037] In one embodiment of the bidirectional clamping battery formation fixture of the present invention, it is used for pressure formation of soft-pack batteries and can clamp the battery in two directions, shortening the time of clamping the battery and improving the efficiency of clamping the battery in the fixture. Figures 1 to 6 , a bidirectional clamping battery formation fixture includes two support frames 100, a guide rod 200 arranged between the two support frames 100, and multiple groups of layer plate assemblies 300 sleeved on the guide rod 200, and flexible connectors (not shown in the drawings) are connected between adjacent layer plate assemblies 300. It also includes a screw assembly, a pushing mechanism 500, a support pad 600, a driving mechanism 700 and a support plate 800. Among them, the screw assembly includes multiple groups of screws 400 arranged between the two support frames 100, the screw 400 includes a left-handed thread 401 and a right-handed thread 402, and a connection position 403 is formed between the left-handed thread 401 and the right-handed thread 402. The support plate 800 is provided with a bearing 801 corresponding to the connection position 403 and a support hole 802 corresponding to the guide rod 200. The connection position 403 is connected to the bearing 801, and the guide rod 200 passes through the corresponding support hole 802. The pushing mechanism 500 and the support pad 600 are arranged at both ends of the screw assembly. The pushing mechanism 500 is provided with a left-handed nut 501, which is connected to the left-handed thread 401. The support plate 600 is provided with a right-handed nut 601, which is connected to the right-handed thread 402. Therefore, when the screw rod 400 rotates, the support plate 600 and the pushing mechanism 500 move toward or in the same direction.

[0038] Reference Figure 4 and Figure 5The pushing mechanism 500 includes a movable carrier plate 510, an elastic rubber plate 520 and a pressure plate 530. The movable carrier plate 510 is provided with a mounting hole, and the left-handed nut 501 is arranged in the mounting hole. The two side surfaces of the elastic rubber plate 520 in the thickness direction are parallel to each other, and the elastic rubber plate 520 and the pressure plate 530 are arranged on the inner side of the movable carrier plate 510 in sequence, the pressure plate 530 is screwed to the movable carrier plate 510, and the movable carrier plate 510 and the pressure plate 530 clamp the elastic rubber plate 520. Preferably, the elastic rubber plate 520 is a silicone plate or a rubber plate. Specifically, a countersunk hole is provided on one side of the movable carrier plate 510, a screw hole is provided on the pressure plate 530, and an air-avoiding hole is provided on the elastic rubber plate 520. The locking screw passes through the countersunk hole and the air-avoiding hole and is connected to the screw hole. Therefore, there is space for the elastic rubber plate 520 to deform. The support plate 600 is provided with a hard support surface 602 parallel to the pressure plate 530. The hard support surface 531 is in contact with the adjacent layer assembly 300. A drive mechanism 700 is mounted on a support frame 100 and connected to each screw rod 400, driving each screw rod 400 for synchronous rotation. Furthermore, the support plate 800 is provided with a clearance to prevent the layer assembly 300 from moving along the guide rod 200. The clearance allows the support plate to form two independent support structures.

[0039] 39 In the bidirectional clamping battery formation fixture of this embodiment, the battery to be formed can be placed in the clamping position formed by the adjacent layer assembly 300. The driving mechanism 700 drives each screw 400 to rotate. Since the screw 400 has a left-handed thread 401 and a right-handed thread 402, and the pushing mechanism 500 is provided with a left-handed nut 501 that cooperates with the left-handed thread 401, and the support pad 600 is provided with a right-handed nut 601 that cooperates with the right-handed thread 402, the pushing mechanism 500 and the support pad 600 can move toward each other and push the layer assembly 300 to close together, clamp, and squeeze the battery. When the pushing mechanism 500 squeezes the battery, the elastic rubber plate 520 will be squeezed and slightly deformed. Since the elastic rubber plate 520 deforms along the thickness direction, it can form a large elastic force and will not cause the elastic rubber plate 520 to deform too much. And because the support pad 600 is provided with a hard support surface 602. Therefore, even if there is a problem of uneven battery thickness, the elastic rubber sheet 520 is used to support the pressure plate 530 in the thickness direction, which can effectively avoid the problem of tilting of the pressure plate 530, thereby ensuring that the direction of pressure on the battery can remain consistent, thereby controlling the pressure of the battery formation and ensuring that the battery is effectively and stably pressure-formed.

[0040] Further, refer to Figures 1 to 3, the screw assembly includes four groups of screws 400. The driving mechanism 700 includes a motor 710, a driving gear 720, two transition gears 730 and four groups of driven gears 740. The four groups of driven gears 740 are respectively arranged on the four groups of screws 400, the driving gear 720 is connected to the motor 710, and the two transition gears 730 are engaged on both sides of the driving gear 720, and are engaged with the two driven gears 740 on the same side. More specifically, a mounting cavity is provided on one side of the support frame 100, and a cover plate covering the mounting cavity is also provided; the motor 710 is arranged on the cover plate. In this embodiment, the motor 710 drives the driving gear 720 to rotate, the driving gear 720 drives the transition gear 730 to rotate, and the transition gear 730 drives the driven gear 740 to rotate, thereby driving the screw 400 to rotate.

[0041] Further, refer to Figure 5 The elastic rubber plate 520 has a plurality of through holes 521 distributed along its thickness. The through holes 521 can increase the deformation space of the elastic rubber plate 520. Specifically, when the elastic rubber plate 520 is deformed by pressure, the deformed portion of the elastic rubber plate 520 can extend into the through holes 521.

[0042] Further, refer to Figure 6 The support plate 600 is provided with a pressure detection device 610 for detecting the clamping force of the battery. Specifically, the pressure detection device 610 is a pressure sensor.

[0043] Further, refer to Figure 2 、 Figures 7 to 11 The laminate assembly 300 includes a laminate 310, an adjustment seat 320, a power connection plate 330 and an elastic pressure block 340. The laminate 310 is provided with a guide sleeve 311 that is sleeved on the corresponding guide rod 200. A slide groove 312 is provided on one side of the laminate 310. The adjustment seat 320 is slidably arranged in the slide groove 312. The adjustment seat 320 is provided with a connecting hole 321. The power connection plate 330 is provided with a connecting portion 331 and a power connection portion 332. The connecting portion 331 is connected to the adjustment seat 320. The power connection portion 332 extends to one side of the laminate 310. The elastic pressure block 340 is provided on the other side of the laminate 310. In addition, each adjustment seat 320 is also connected to an adjustment mechanism 900. The position of the adjustment seat 320 is adjusted by the adjustment mechanism 900, and then the position of the power connection plate 330 of each laminate assembly 300 is adjusted to achieve the formation of different batteries. The adjustment mechanism 900 includes an adjustment rod 910 and a lifting assembly 920. The adjustment rod 910 passes through the connection hole 321 of each adjustment seat 320. The lifting assembly 920 is connected to the adjustment rod 910 and is used to drive the adjustment rod 910 up and down. In this embodiment, the lifting assembly 920 drives the adjustment rod 910 up and down. When the adjustment rod 910 moves up and down, the adjustment seat 320 is pushed up and down, thereby adjusting the position of the power strip 330.

[0044] Further, refer to Figures 9 to 11 The lifting assembly 920 includes two sets of racks 921, two sets of adjustment gears 922, a first lifting seat 923 and an adjustment screw 924. The two sets of racks 921 are respectively provided on one side of the two support frames 100, and the two adjustment gears 922 are respectively provided at both ends of the adjustment rod 910 and mesh with the corresponding racks 921. The first lifting seat 923 is connected to the adjustment rod 910, and the adjustment screw 924 is connected to the first lifting seat 923 for adjusting the height of the first lifting seat 923. Specifically, a mounting frame 101 is provided on one side of the support frame 100, and the racks 921 and the adjustment screw 924 are connected to the mounting frame 101. In this embodiment, the adjustment rod 910 can be supported by the mutual engagement of the adjustment screw 924, the first lifting seat 923, and the two sets of mutually meshing adjustment gears 922 and the racks 921. When the adjustment screw 924 is fixed, the adjustment rod 910 can maintain support for the adjustment seat 320. When the height position of the power board 330 needs to be adjusted, the adjusting screw 924 can be rotated. When the adjusting screw 924 drives the first lifting seat 923 to rise and fall, the adjusting rod 910 rises and falls together, and the adjusting gear 922 and the rack 921 are meshed and rolled, so that the two racks 921 always support the adjusting rod 910 through the adjusting gear 922 and keep it in the supporting position.

[0045] Further, refer to Figure 12 Lifting assembly 920 also includes a second lifting seat 925. First and second lifting seats 923 and 925 are connected to the ends of adjustment rod 910, respectively. Both first and second lifting seats 923 and 925 are located in the guide hole and the clearance hole. The clearance hole and the guide hole are perpendicularly arranged and connected. The guide hole is connected to the corresponding rack 921, and the adjustment gear 922 is located in the clearance hole. Therefore, the first and second lifting seats 923 and 925 restrain the adjustment rod 910 on the two racks 921.

[0046] Further, refer to Figure 7 、 Figure 8 and Figure 13 The first layer assembly 300 closer to the support plate 800 further includes a second adjustment gear 350 and a second rack 360. The second adjustment gear 350 is sleeved on the adjustment rod 910 and is located on the adjustment seat 320. The adjustment seat 320 is provided with a through hole, through which the second rack 360 passes and engages with the second adjustment gear 350. The second rack 360 is fixedly connected to the laminate 310. Therefore, by supporting the middle position of the adjustment rod 910 by the layer assembly 300 closer to the support plate 800, deformation and bending of the adjustment rod 910 can be effectively avoided, thereby ensuring the accuracy of adjusting the position of each power supply board 330.

[0047] Furthermore, the adjustment rod 910 includes two rotating shafts 911 and a gear shaft 912. One end of the rotating shaft 911 is connected to the second adjustment gear 350, and the other end is provided with a mounting slot 913. The sidewalls of the mounting slot 913 are provided with waist-shaped countersunk holes. The gear shaft 912 is provided with connecting flats 914 at both ends, and the connecting flats 914 extend into the corresponding mounting slots 913. The locking screw passes through the waist-shaped countersunk holes to lock the gear shaft 912, and the second adjustment gear 350 is mounted on the gear shaft 912. In this embodiment, the adjustment rod 910 is composed of two rotating shafts 911 and a gear shaft 912, which can effectively reduce the processing cost of the adjustment rod 910 and avoid the problem of deformation caused by excessive length. The second adjustment gear 350 is also conveniently assembled with the adjustment rod 910, without having to insert the second adjustment gear 350 from one end of the adjustment rod 910. In addition, by connecting the second adjusting gear 350 to the gear shaft 912, the second adjusting gear 350 and the gear shaft 912 can be processed as one piece; and after the diameter of the adjusting rod 910 is determined, the diameter of the second adjusting gear 350 can be effectively reduced, thereby reducing the size of the adjusting seat 320, thereby avoiding the adjusting seat 320 occupying a larger space.

[0048] Furthermore, the axis of the adjusting screw 924 deviates from the axis of the adjusting rod 910 and is arranged closer to the rack 921. In this embodiment, when the first lifting seat 923 is lifted, the force applied to the first lifting seat 923 and the adjusting gear 922 are eccentric. Therefore, when the first lifting seat 923 is lifted or lowered, the adjusting gear 922 can be smoothly pushed to rotate, achieving adjustment and avoiding jamming.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bidirectional clamping battery formation fixture, comprising two support frames, a guide rod disposed between the two support frames, and a plurality of layer plate assemblies sleeved on the guide rods, wherein adjacent layer plate assemblies are connected by flexible connectors; characterized in that: The cam is provided with a plurality of screw rods arranged between the two support frames, and the screw rods include left-handed threads and right-handed threads, and a connecting position is formed between the left-handed threads and the right-handed threads; the support plate is provided with a bearing corresponding to the connecting position and a supporting hole corresponding to the guide rod, the connecting position is connected to the bearing, and the guide rod passes through the corresponding supporting hole; the pushing mechanism and the supporting plate are provided at both ends of the screw rod assembly, the pushing mechanism is provided with a left-handed nut, the left-handed nut is connected to the left-handed thread, and the The support pad is provided with a right-handed nut, and the right-handed nut is connected to the right-handed thread; the pushing mechanism includes a movable carrier, an elastic rubber plate and a pressure plate; the movable carrier is provided with a mounting hole for mounting the left-handed nut; the two side surfaces in the thickness direction of the elastic rubber plate are parallel to each other, and the elastic rubber plate and the pressure plate are sequentially arranged on the inner side of the movable carrier, and the pressure plate is connected to the movable carrier screw and clamps the elastic rubber plate; the support pad is provided with a hard supporting surface parallel to the pressure plate; the driving mechanism is arranged on one of the support frames and is connected to each of the screw rods, for driving each of the screw rods to rotate synchronously.

2. The bidirectional clamping battery formation fixture according to claim 1, characterized in that: The screw assembly includes four groups of screws; the driving mechanism includes a motor, a driving gear, two transition gears and four groups of driven gears, the four groups of driven gears are respectively arranged on the four screws, the driving gear is connected to the motor, the two transition gears are meshed on both sides of the driving gear, and are meshed with the two driven gears on the same side.

3. The bidirectional clamping battery formation fixture according to claim 1, characterized in that: A plurality of through holes are distributed in the thickness direction of the elastic rubber plate.

4. The bidirectional clamping battery formation fixture according to any one of claims 1 to 3, characterized in that: The support plate is provided with an avoidance position for preventing the layer plate assembly from moving along the guide rod; the avoidance position enables the support plate to form two independent support structures.

5. The bidirectional clamping battery formation fixture according to any one of claims 1 to 3, characterized in that: The support pad is provided with a pressure detection device for detecting the clamping force of the battery formation.

6. The bidirectional clamping battery formation fixture according to claim 1, characterized in that: The laminate assembly includes a laminate, an adjustment seat, a power connection plate and an elastic pressure block; the laminate is provided with a guide sleeve mounted on the corresponding guide rod, a slide groove is provided on one side of the laminate, the adjustment seat is slid in the slide groove, and the adjustment seat is provided with a connecting hole; the power connection plate is provided with a connecting part and a power connection part, the connecting part is connected to the adjustment seat, the power connection part extends to one side of the laminate, and the elastic pressure block is provided on the other side of the laminate; the bidirectional clamping battery formation fixture also includes an adjustment mechanism for adjusting the power connection plate of each laminate assembly; the adjustment mechanism includes an adjustment rod and a lifting assembly, the adjustment rod passes through the connecting hole of each adjustment seat, and the lifting assembly is connected to the adjustment rod for driving the adjustment rod to adjust up and down.

7. The bidirectional clamping battery formation fixture according to claim 6, characterized in that: The lifting assembly includes two groups of racks, two groups of adjusting gears, a first lifting seat and an adjusting screw; the two groups of racks are respectively arranged on one side of the two support frames, and the two groups of adjusting gears are respectively arranged at both ends of the adjusting rod and mesh with the corresponding racks; the first lifting seat is connected to the adjusting rod, and the adjusting screw is connected to the first lifting seat for adjusting the height of the first lifting seat.

8. The bidirectional clamping battery formation fixture according to claim 7, characterized in that: The lifting assembly also includes a second lifting seat, the first lifting seat and the second lifting seat are respectively connected to the two ends of the adjusting rod, the first lifting seat and the second lifting seat are both arranged in the guide hole and the air avoidance hole, the air avoidance hole and the guide hole are arranged perpendicular to each other and are connected; the guide hole is connected to the corresponding rack, and the adjusting gear is arranged in the air avoidance hole.

9. The bidirectional clamping battery formation fixture according to any one of claims 6 to 8, characterized in that: The layer plate assembly closer to the support plate also includes a second adjusting gear and a second rack; the second adjusting gear is sleeved on the adjusting rod and is located on the adjusting seat, and a through hole is provided on the adjusting seat, and the second rack passes through the through hole and engages with the second adjusting gear; the second rack is fixedly connected to the laminate.

10. The bidirectional clamping battery formation fixture according to claim 9, characterized in that: The adjusting rod includes two rotating shafts and a gear shaft. One end of the rotating shaft is connected to the adjusting gear, and the other end is provided with a mounting groove. The side wall of the mounting groove is provided with a waist-shaped countersunk hole. Both ends of the gear shaft are provided with connecting flat positions, and the connecting flat positions extend into the corresponding mounting grooves; a locking screw passes through the waist-shaped countersunk hole to lock the gear shaft, and the second adjusting gear is provided on the gear shaft.

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