Full-automatic remodeling needle bed

Abstract

The utility model discloses a full-automatic remodeling needle bed which comprises a bottom support, a top support, a lifting support, a probe negative pressure module and a remodeling moving piece, the lifting support is arranged between the bottom support and the top support in a sliding mode, limiting racks are fixedly arranged on the two sides of the top support, and the probe negative pressure module is arranged below the top support in a sliding mode. The two ends of the probe negative pressure module are provided with abutting connection notches corresponding to the limiting tooth blocks, the remodeling moving pieces are arranged on the two sides, close to the abutting connection notches, of the top support in a sliding mode, and the remodeling moving pieces trigger the limiting tooth blocks to be disengaged from the limiting rack through the abutting connection notches. And the probe negative pressure module is connected with the remodeling moving piece in a clamping manner. According to the utility model, the limiting rack and the limiting tooth block which can be elastically reset are introduced, and are matched with the arrangement of the jacking gap and the use of the remodeling moving piece, so that the remodeling efficiency is improved, and meanwhile, the quick switching requirement of multi-specification battery cells is met.

Description

Technical Field

[0001] This utility model relates to the field of new energy lithium battery production technology, and in particular to a fully automatic needle changing bed. Background Technology

[0002] With the rapid development of new energy vehicles and energy storage industries, lithium-ion batteries are exhibiting a diversified range of models and specifications. Prismatic lithium batteries show significant differences in parameters such as size, electrode spacing, and height, placing higher demands on the compatibility of testing equipment. Traditional testing equipment often employs a fixed probe and negative pressure assembly layout. The column spacing, probe-to-negative pressure assembly spacing, and lifting height all require manual installation and removal of positioning blocks or manual adjustment mechanisms for adaptation. This is particularly time-consuming during cell replacement, leading to low production efficiency. Furthermore, due to structural limitations, existing equipment struggles to automatically adjust the probe array and negative pressure adsorption relationship according to changes in cell size, easily causing poor contact or mechanical interference, affecting testing accuracy and equipment stability. These shortcomings make traditional equipment ill-suited for the rapid switching between multiple cell specifications, severely restricting efficiency improvements and cost optimization in the testing process, and impacting production line flexibility and efficiency. Utility Model Content

[0003] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a fully automatic changeover needle bed, which solves the technical problems of low changeover efficiency of traditional testing equipment, difficulty in meeting the needs of rapid switching of multiple specifications of battery cells, and impact on testing accuracy and equipment stability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a fully automatic needle-changing bed, comprising:

[0006] Bottom support;

[0007] The top bracket is mounted on the bottom bracket via a vertical column and is arranged parallel to the bottom bracket.

[0008] A lifting bracket is slidably sleeved on the vertical column. The top bracket is provided with a lifting drive component for driving the lifting bracket to move along the axial direction of the vertical column. The lifting bracket is provided with a battery cell tray.

[0009] A probe negative pressure module, wherein multiple probe negative pressure modules arranged in parallel are slidably disposed below the top support, and limiting racks are fixed on both sides of the top support. The probe negative pressure module is located between two of the limiting racks and is arranged perpendicular to the limiting racks. The probe negative pressure module has elastically resettable limiting tooth blocks at both ends that mesh with the limiting racks. The probe negative pressure module also has top contact notches at both ends that correspond to the limiting tooth blocks.

[0010] The changing movable component is slidably disposed on both sides of the top bracket near the top contact notch. The top bracket is also equipped with a changing drive assembly that drives the changing movable component to reciprocate along the axial direction of the limiting rack. The changing movable component triggers the disengagement of the limiting tooth block and the limiting rack through the top contact notch, and causes the probe negative pressure module to engage with the changing movable component.

[0011] As a preferred embodiment, the top support is symmetrically provided with first linear guide rails at both ends. The probe negative pressure module includes a positive probe integrated component, a negative pressure integrated component, and a negative probe integrated component arranged sequentially. The positive probe integrated component, the negative pressure integrated component, and the negative probe integrated component are arranged in parallel and are all slidably mounted on the first linear guide rails via mounting strips. The mounting strips are orthogonally arranged to the first linear guide rails. The top connection notch is formed at both ends of the mounting strips near the limiting rack. The limiting rack is arranged parallel to the first linear guide rails. The limiting tooth block is disposed between the first linear guide rails and the limiting rack. The top support is also symmetrically provided with second linear guide rails arranged parallel to the first linear guide rails. The shape-changing moving component is slidably mounted on the second linear guide rails. The shape-changing moving component can reciprocate along the length direction of the second linear guide rails. The shape-changing drive assembly is disposed on both sides of the top support near the limiting rack.

[0012] As a preferred embodiment, a fixing block is further provided between the limiting rack and the first linear guide rail. The fixing block is installed on the side of the mounting plate near the top bracket. The fixing block has a limiting guide hole arranged parallel to the mounting plate. A guide shaft protrudes from the end of the limiting rack away from the limiting rack. The guide shaft is movably installed through the limiting guide hole. An elastic element is sleeved on the guide shaft. One end of the elastic element is connected to the fixing block, and the other end is connected to the limiting rack.

[0013] As a preferred embodiment, the type-changing drive assembly includes a type-changing drive component, a driving belt gear, and a driven belt gear. The driving belt gear and the driven belt gear are rotatably disposed at symmetrical ends on the top support near the top contact notch and are connected by a synchronous belt drive. The synchronous belt is arranged parallel to the second linear guide rail. The type-changing moving component is fixedly connected to one side of the synchronous belt and moves synchronously with the synchronous belt. The type-changing drive component is fixed to the side of the top support. The transmission end of the type-changing drive component is connected to the driving belt gear through a transmission connecting shaft. The limiting tooth block has a protruding actuating protrusion on the side near the mounting strip. The actuating protrusion is spaced on the top contact notch and can reciprocate along the length direction of the top contact notch perpendicular to the length direction of the limiting toothed rack.

[0014] As a preferred embodiment, the changing moving component includes a support plate, a telescopic cylinder, a third linear guide rail, and a sliding plate. The support plate is mounted on the lower side of the synchronous belt via a clamping connector. Two third linear guide rails are fixed parallel to each other at symmetrical ends on the side of the support plate away from the synchronous belt and are arranged perpendicularly to the second linear guide rail. The telescopic cylinder is disposed between the two third linear guide rails and mounted on the support plate. The sliding plate is slidably mounted on the third linear guide rail via a sliding block. One end of the sliding plate away from the limiting tooth block is connected to the transmission end of the telescopic cylinder, and the other end is fixed with a top contact block adapted to the top contact notch. The top contact block is used to actuate the actuating protrusion and is fitted and connected to the mounting strip plate through the top contact notch. The side of the sliding plate away from the top contact block also has an avoidance notch corresponding to the telescopic cylinder.

[0015] As a preferred embodiment, the lifting drive is installed on the side of the top bracket away from the cell tray. The top bracket also has a reversing assembly, which includes a primary reversing housing, a secondary reversing housing, a drive shaft, and a drive lifting screw. The primary reversing housing is fixed to the side of the lifting drive and located in the middle of the top bracket. The secondary reversing housing is located at both symmetrical ends of the primary reversing housing and is fixed to the top bracket. A primary reversing bevel gear is rotatably mounted in the primary reversing housing on the side closest to the secondary reversing housing, and a secondary reversing bevel gear is rotatably mounted in the secondary reversing housing on the side closest to the primary reversing housing. The drive shaft is located between the primary and secondary reversing housings, with one end passing through the primary reversing housing. The reversing housing is connected to the first-stage reversing bevel gear, and the other end passes through the second-stage reversing housing and is connected to the second-stage reversing bevel gear. The transmission end of the lifting drive component extends into the first-stage reversing housing and meshes with the first-stage reversing bevel gear through a transmission bevel gear. A third-stage reversing bevel gear is also rotatably installed in the second-stage reversing housing. The third-stage reversing bevel gear is arranged perpendicularly to the second-stage reversing bevel gear and meshes with it. The transmission lifting screw is disposed between the top support and the bottom support. One end of the transmission lifting screw is rotatably installed on the bottom support, and the other end passes through the top support and the second-stage reversing housing in sequence and is connected to the third-stage reversing bevel gear. The transmission lifting screw is arranged perpendicularly to the transmission shaft, and the lifting support is screwed to the transmission lifting screw.

[0016] As a preferred embodiment, a guide column is provided between the top support and the bottom support. One end of the guide column is fixedly connected to the bottom support, and the other end passes through the lifting support and is fixedly connected to the top support. The guide column is arranged on both sides of the transmission lifting screw.

[0017] As a preferred embodiment, the bottom support has mounting columns protruding on both sides, and a pallet initial positioning wedge is fixed on the mounting columns. The bottom support also has a plurality of pallet initial support columns arranged at equal intervals protruding in the middle. The lifting support has a first hollow groove corresponding to the pallet initial positioning wedge and a second hollow groove corresponding to the pallet initial support column. The lifting support also has pallet limiting wedges symmetrically provided at both ends on the side of the lifting support near the top support.

[0018] As a preferred embodiment, the top bracket is also equipped with a heat dissipation component corresponding to the probe negative pressure module.

[0019] As a preferred embodiment, the limiting tooth block is T-shaped.

[0020] Compared with existing technologies, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves automated and precise adaptation of the three-dimensional spatial position of the battery cell through the vertical motion control of the lifting drive component and the lifting bracket, and the lateral coordinated adjustment of the changing moving component and the limiting rack. This significantly reduces the need for manual intervention and the time spent on changing the battery cell. Under the meshing trigger mechanism of the elastically resettable limiting block and the top contact notch, the probe negative pressure module not only ensures the rigid constraint of lateral positioning to avoid mechanical interference, but also realizes the dynamic reconstruction of the array spacing through the changing drive component. This effectively solves the compatibility problem caused by the fixed structure of traditional equipment, greatly improves the testing efficiency and equipment stability of multi-specification battery cells. At the same time, the modular design combined with the three-dimensional motion system allows the contact pressure and adsorption position to be intelligently adjusted according to the size of the battery cell, eliminating the risk of poor contact and providing a systematic technical guarantee for the flexible upgrading of the production line and the optimization of testing accuracy.

[0021] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a fully automatic needle-changing bed according to an embodiment of this application;

[0023] Figure 2 This is an embodiment of the present application. Figure 1 Enlarged view of point A;

[0024] Figure 3 This is a schematic diagram of a fully automatic needle-changing bed from another perspective of an embodiment of this application;

[0025] Figure 4 This is an embodiment of the present application. Figure 3 Enlarged view of point B;

[0026] Figure 5 This is a schematic diagram of a probe negative pressure module according to an embodiment of this application;

[0027] Figure 6 This is an embodiment of the present application. Figure 5 Enlarged view at point C;

[0028] Figure 7 This is a schematic diagram of the fully automatic needle bed structure according to an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Bottom bracket; 11. Mounting column; 111. Pallet initial positioning wedge; 12. Pallet initial support column; 13. Guide column rod;

[0031] 20. Top support; 21. Vertical column; 22. Lifting drive component; 23. Limiting rack; 24. First linear guide rail; 25. Second linear guide rail;

[0032] 30. Lifting bracket; 31. Battery cell tray; 32. First hollowed-out groove; 33. Second hollowed-out groove; 34. Tray limiting wedge;

[0033] 40. Probe negative pressure module; 41. Limiting tooth block; 411. Guide shaft; 412. Actuating protrusion; 42. Positive probe integrated component; 43. Negative pressure integrated component; 44. Negative probe integrated component; 45. Mounting strip; 451. Top connection notch; 46. Fixing block; 461. Limiting guide hole; 47. Elastic component;

[0034] 50. Changing moving part; 51. Support plate; 52. Telescopic cylinder; 53. Third linear guide rail; 54. Sliding plate; 541. Sliding block; 542. Top contact block; 543. Clearance notch;

[0035] 60. Changeover drive assembly; 61. Changeover drive component; 62. Drive belt gear; 63. Driven belt gear; 64. Synchronous belt; 65. Transmission connecting shaft;

[0036] 70. Clamping connectors;

[0037] 80. Reversing assembly; 81. Primary reversing housing; 82. Secondary reversing housing; 83. Drive shaft; 84. Drive lifting screw;

[0038] 90. Heat dissipation components. Detailed Implementation

[0039] 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 scope of the present utility model.

[0040] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0041] Please see Figures 1 to 7This utility model provides a fully automatic type-changing needle bed, including a bottom support 10, a top support 20, a lifting support 30, a probe negative pressure module 40, and a type-changing moving component 50. The top support 20 is mounted on the bottom support 10 via a vertical column 21 and is arranged parallel to the bottom support 10, forming a stable vertical guide structure. The lifting support 30 is slidably sleeved on the vertical column 21. This design ensures the vertical movement accuracy of the lifting support 30, provides a stable guide foundation for lifting, and achieves height adjustment flexibility to adapt to different cell sizes. The top support 20 is equipped with a lifting drive component 22 for driving the lifting support 30 to move axially along the vertical column 21, that is, through automated lifting control, it provides precise height position control and improves the efficiency of the testing process. The lifting support 30 is equipped with a cell tray 31 for carrying cells of different specifications and positioning the test reference surface. Multiple probe negative pressure modules 40 arranged in parallel are slidably disposed below the top support 20 to form a reconfigurable test array to support the contact requirements of multiple cell specifications. Limiting racks 23 are fixed on both sides of the top support 20 to establish a lateral position constraint track. The probe negative pressure module 40 is located between the two limiting racks 23 and is arranged perpendicularly to the limiting racks 23, forming an orthogonal motion coordinate system. The probe negative pressure module 40 has elastically resettable limiting tooth blocks 41 at both ends that mesh with the limiting racks 23 to ensure the rigidity and reliability of the lateral positioning of the probe negative pressure module 40. The probe negative pressure module 40 has top contact notches 451 at both ends that correspond to the limiting tooth blocks 41, serving as the action points for the changeover trigger. The changeover moving part 50 is slidably disposed on both sides of the top support 20 near the top contact notches 451, performing the dual functions of unlocking and connecting the probe negative pressure module 40. The top support 20 is also equipped with a changeover drive assembly 60 that drives the changeover moving part 50 to reciprocate along the axial direction of the limiting racks 23, realizing automated changeover process control. The switching moving part 50 triggers the disengagement of the limiting tooth block 41 and the limiting tooth rack 23 through the top contact notch 451, releasing the lateral constraint relationship of the probe negative pressure module 40, and making the probe negative pressure module 40 engage with the switching moving part 50 to establish a temporary driving relationship. Under the synergistic effect of the switching driving component 60, the position of the probe negative pressure module 40 is reconstructed, meeting the requirements for rapid switching of multiple specifications of battery cells, and improving the switching efficiency, equipment testing accuracy and stability.

[0042] Here, through the meshing mechanism of the limiting rack 23 and the elastically resettable limiting block 41, while ensuring the positioning accuracy of the probe negative pressure module 40 array, the lateral constraint is quickly released and rebuilt using the type-changing moving part 50. Combined with the lifting drive part 22 to form a three-dimensional motion system, it can automatically adapt and adjust for different specifications of battery cells, effectively solving the technical bottleneck of traditional equipment type-changing relying on manual debugging and low efficiency. It significantly improves the compatibility of the testing equipment with multi-size battery cells and the flexibility of the production line, while avoiding the risk of mechanical interference and contact failure, ensuring the data reliability and equipment operation stability during the testing process.

[0043] In this embodiment, the top bracket 20 is symmetrically fixed at both ends with first linear guide rails 24, providing a lateral guiding reference for the probe negative pressure module 40 and ensuring the straightness and stability of the movement path. It should be noted that the probe negative pressure module 40 includes a positive electrode probe integrated component 42, a negative pressure integrated component 43, and a negative electrode probe integrated component 44 arranged sequentially, forming a complete electrical connection and adsorption functional chain to meet the requirements of cell charging and discharging testing and fixation. The positive electrode probe integrated component 42, the negative pressure integrated component 43, and the negative electrode probe integrated component 44 are arranged in parallel to optimize space utilization and test point coverage accuracy. All are slidably mounted on the first linear guide rails 24 via mounting plates 45, ensuring that the positive electrode probe integrated component 42, the negative pressure integrated component 43, and the negative electrode probe integrated component 44 can be independently slidably adjusted. The mounting plates 45 are orthogonally arranged to the first linear guide rails 24, and top notches 451 are formed at both ends of the mounting plates 45 near the limiting rack 23, serving as the function of the changing moving component 50. The limiting rack 23 is arranged parallel to the first linear guide rail 24, and the limiting tooth block 41 is disposed between the first linear guide rail 24 and the limiting rack 23, forming an elastically disengaging engagement mechanism to ensure positioning rigidity and changeover flexibility. The top bracket 20 is also symmetrically mounted on both sides with second linear guide rails 25 arranged parallel to the first linear guide rail 24, providing an independent movement track for the changeover moving part 50. That is, the changeover moving part 50 is slidably mounted on the second linear guide rail 25 to achieve lateral position control. The changeover moving part 50 can reciprocate along the length of the second linear guide rail 25. The changeover drive assembly 60 is disposed on both sides of the top bracket 20 near the limiting rack 23, using a symmetrical layout to optimize the driving force transmission efficiency.

[0044] The module motion framework is constructed by an orthogonal guide rail system. Combined with an elastic meshing limit mechanism and independent changeover drive, the high rigidity of the module array is maintained while the lateral constraints are quickly released and rebuilt. The dual guide rail configuration ensures the linear motion accuracy of each integrated component and provides an independent drive channel for the changeover moving component 50 to avoid motion interference. The modular component design, combined with the top notch 451 trigger mechanism, enables the system to automatically adjust the distribution of each integrated component and the position of the negative pressure adsorption according to the cell specifications, significantly improving the equipment changeover efficiency and testing adaptability, and meeting the flexible production needs of multi-specification cells.

[0045] Furthermore, a fixing block 46 is provided between the limiting rack 23 and the first linear guide rail 24 to enhance structural stability and provide guiding support. Specifically, the fixing block 46 is installed on the side of the mounting plate 45 near the top bracket 20. The fixing block 46 has a limiting guide hole 461 arranged parallel to the mounting plate 45, providing a linear constraint track for the movement of the limiting rack 41. A guide shaft 411 protrudes from the end of the limiting rack 23. The guide shaft 411 is movably installed through the limiting guide hole 461. An elastic element 47 is sleeved on the guide shaft 411. One end of the elastic element 47 is connected to the fixing block 46, and the other end is connected to the limiting rack 41, forming a linear motion pair that can be elastically reset, providing continuous meshing pressure for the limiting rack 41, and forming a preload closed-loop system.

[0046] The type-changing drive assembly 60 includes a type-changing drive component 61, a driving belt gear 62, and a driven belt gear 63. The driving belt gear 62 and the driven belt gear 63 are rotatably mounted at symmetrical ends on the side of the top support 20 near the top contact notch 451, and are connected by a synchronous belt 64 to achieve dual-side drive synchronization. The synchronous belt 64 is arranged parallel to the second linear guide rail 25 to ensure the accuracy of the movement trajectory of the type-changing moving component 50. The type-changing moving component 50 is fixedly connected to one side of the synchronous belt 64 and moves synchronously with the synchronous belt 64, establishing a direct drive relationship. The type-changing drive component 61 is fixed to the side of the top support 20, optimizing the spatial layout and power transmission path. The transmission end of the type-changing drive component 61 is connected to the driving belt gear 62 through a transmission connecting shaft 65 to form a torque transmission link. The limiting tooth block 41 is T-shaped. Specifically, the limiting tooth block 41 has a protruding actuating protrusion 412 on the side near the mounting strip 45, which serves as the action point for triggering type changing. The actuating protrusion 412 is positioned at a gap on the top contact notch 451 to ensure that the position is maintained in the non-changing state, and can reciprocate along the length direction of the top contact notch 451 perpendicular to the length direction of the limiting rack 23 to achieve precise trigger control.

[0047] The composite structure of guide shaft 411 and elastic element 47 enables the elastic meshing of limit tooth block 41, ensuring lateral positioning rigidity and providing a flexible disengagement mechanism for model changeover. The synchronous transmission system, in conjunction with the double-sided gear layout, ensures the smoothness and positional accuracy of the model changeover moving part 50. The clearance fit design between the actuating protrusion 412 and the top contact notch 451 eliminates mechanical interference while ensuring the reliability of the trigger action. This effectively solves the problem of rapid model changeover for multi-specification battery cell testing equipment and significantly improves the flexibility and efficiency of the testing system.

[0048] Furthermore, the changing moving component 50 includes a support plate 51, a telescopic cylinder 52, a third linear guide rail 53, and a sliding plate 54. The support plate 51 is mounted on the lower side of the synchronous belt 64 via a clamping connector 70, that is, on the side of the synchronous belt 64 closest to the bottom support 10, ensuring rigid connection and motion synchronization with the transmission system. Two third linear guide rails 53 are parallel and fixed at symmetrical ends on the side of the support plate 51 away from the synchronous belt 64, and are arranged perpendicularly to the second linear guide rail 25, establishing a vertical motion guidance reference. The telescopic cylinder 52 is located between the two third linear guide rails 53 and mounted on the support plate 51, serving as the driving force source for the top-connecting action and the stroke control unit. The sliding plate 54 is slidably mounted on the third linear guide rail 53 via a sliding block 541, achieving stable motion guidance. One end of the sliding plate 54 away from the limiting tooth block 41 is connected to the transmission end of the telescopic cylinder 52, forming a driving force transmission path. The other end is fixed with a top contact block 542 that matches the top contact notch 451, serving as the execution end for triggering the changeover. The top contact block 542 is used to actuate the actuating protrusion 412 and is connected to the mounting strip 45 through the top contact notch 451 to establish a temporary rigid connection, enabling drag adjustment. The side of the sliding plate 54 away from the top contact block 542 also has an avoidance notch 543 corresponding to the telescopic cylinder 52, optimizing the spatial layout and avoiding motion interference.

[0049] Here, a multi-dimensional motion frame is constructed through an orthogonal guide rail system. The telescopic cylinder 52, in conjunction with the sliding plate 54, achieves precise vertical top-connection action. The engagement mechanism between the top-connection block 542 and the actuating protrusion 412 ensures both trigger reliability and allows for rapid release of constraints after the changeover is completed.

[0050] The lifting drive unit 22 is mounted on the side of the top bracket 20 away from the cell tray 31 to optimize transmission efficiency and reduce vibration interference. The top bracket 20 is also equipped with a reversing assembly 80 to convert rotational motion into vertical lifting motion. The reversing assembly 80 includes a primary reversing housing 81, a secondary reversing housing 82, a drive shaft 83, and a drive lifting screw 84, forming a multi-stage reversing transmission system. The primary reversing housing 81 is fixed to the side of the lifting drive component 22 and located in the middle of the top support 20, forming the power input hub. The secondary reversing housing 82 is arranged at both symmetrical ends of the primary reversing housing 81 and fixed on the top support 20 to achieve symmetrical power distribution. A primary reversing bevel gear is rotatably mounted on the side of the primary reversing housing 81 closest to the secondary reversing housing 82, and a secondary reversing bevel gear is rotatably mounted on the side of the secondary reversing housing 82 closest to the primary reversing housing 81. The drive shaft 83 is located between the primary reversing housing 81 and the secondary reversing housing 82. One end of the drive shaft 83 passes through the primary reversing housing 81 and connects to the primary reversing bevel gear, and the other end passes through the secondary reversing housing 82 and connects to the secondary reversing bevel gear, forming a multi-stage reversing transmission system. A continuous transmission link is formed. The transmission end of the lifting drive component extends into the first-stage reversing housing 81 and is connected to the first-stage reversing bevel gear through a transmission bevel gear to achieve power input coupling. A third-stage reversing bevel gear is also rotatably installed in the second-stage reversing housing 82. The third-stage reversing bevel gear is arranged perpendicularly to the second-stage reversing bevel gear and is connected to complete the final transmission direction conversion. The transmission lifting screw 84 is set between the top bracket 20 and the bottom bracket 10. One end of the transmission lifting screw 84 is rotatably installed on the bottom bracket 10, and the other end passes through the top bracket 20 and the second-stage reversing housing 82 in sequence and is connected to the third-stage reversing bevel gear to establish a vertical motion drive link. The transmission lifting screw 84 is set perpendicularly to the transmission shaft 83 to form a spatial orthogonal transmission structure. The lifting bracket 30 is screwed to the transmission lifting screw 84 to achieve precise height adjustment of the lifting bracket 30 and ensure smooth movement and positioning accuracy.

[0051] Furthermore, a guide rod 13 is provided between the top support 20 and the bottom support 10 to enhance the vertical movement guidance accuracy. One end of the guide rod 13 is fixedly connected to the bottom support 10, and the other end passes through the lifting support 30 and is fixedly connected to the top support 20. The guide rod 13 is arranged on both sides of the transmission lifting screw 84 symmetrically to effectively suppress tilting caused by off-center load and improve the verticality of the lifting movement.

[0052] The bottom support 10 has mounting posts 11 protruding on both sides, and a tray initial positioning wedge 111 is fixed on the mounting post 11 for quick coarse positioning of the cell tray 31. The bottom support 10 also has multiple tray initial support posts 12 arranged at equal intervals in the middle to achieve uniform support. The lifting support 30 has a first hollow groove 32 corresponding to the tray initial positioning wedge 111 and a second hollow groove 33 corresponding to the tray initial support post 12 to avoid interfering with the lifting movement of the lifting support 30. The lifting support 30 also has tray limiting wedges 34 symmetrically provided at both ends on the side near the top support 20 to prevent the cell tray 31 from shifting position during the lifting process of the lifting support 30.

[0053] The top bracket 20 is also equipped with a heat dissipation component 90 corresponding to the probe negative pressure module 40, forming forced convection, optimizing the working environment temperature, ensuring the temperature stability of the probe negative pressure module 40 under long-term high load operation, and improving equipment reliability.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully automatic needle-changing bed, characterized in that, include: Bottom support (10); The top bracket (20) is mounted on the bottom bracket (10) by a vertical column (21) and is arranged parallel to the bottom bracket (10); A lifting bracket (30) is slidably sleeved on the vertical column (21). The top bracket (20) is provided with a lifting drive component (22) for driving the lifting bracket (30) to move along the axial direction of the vertical column (21). The lifting bracket (30) is provided with a battery cell tray (31). A probe negative pressure module (40) is provided. Multiple probe negative pressure modules (40) arranged in parallel are slidably disposed below the top bracket (20). Limiting racks (23) are fixed on both sides of the top bracket (20). The probe negative pressure module (40) is located between two of the limiting racks (23) and is arranged perpendicular to the limiting racks (23). The probe negative pressure module (40) has elastically resettable limiting blocks (41) at both ends that mesh with the limiting racks (23). The probe negative pressure module (40) has top contact notches (451) at both ends that correspond to the limiting blocks (41). The changing moving part (50) is slidably disposed on both sides of the top bracket (20) near the top contact notch (451). The top bracket (20) is also equipped with a changing drive assembly (60) that drives the changing moving part (50) to reciprocate along the axial direction of the limiting rack (23). The changing moving part (50) triggers the disengagement of the limiting tooth block (41) from the limiting rack (23) through the top contact notch (451), and causes the probe negative pressure module (40) to engage with the changing moving part (50).

2. The fully automatic needle-changing bed according to claim 1, characterized in that: The top bracket (20) is symmetrically fixed with first linear guide rails (24) at both ends. The probe negative pressure module (40) includes a positive probe integrated component (42), a negative pressure integrated component (43), and a negative probe integrated component (44) arranged sequentially. The positive probe integrated component (42), the negative pressure integrated component (43), and the negative probe integrated component (44) are arranged in parallel and are all slidably mounted on the first linear guide rail (24) via mounting strips (45). The mounting strips (45) are orthogonally arranged to the first linear guide rail (24). The top notch (451) is opened on the mounting strips (45) near the limiting rack (23). At the end, the limiting rack (23) is arranged parallel to the first linear guide rail (24), the limiting tooth block (41) is arranged between the first linear guide rail (24) and the limiting rack (23), and the top bracket (20) is also fixed on both sides of the second linear guide rail (25) arranged parallel to the first linear guide rail (24). The shape-changing moving part (50) is slidably installed on the second linear guide rail (25), and the shape-changing moving part (50) can reciprocate along the length direction of the second linear guide rail (25). The shape-changing driving assembly (60) is arranged on both sides of the top bracket (20) near the limiting rack (23).

3. The fully automatic needle-changing bed according to claim 2, characterized in that: A fixing block (46) is also provided between the limiting rack (23) and the first linear guide rail (24). The fixing block (46) is installed on the side of the mounting plate (45) near the top bracket (20). The fixing block (46) has a limiting guide hole (461) arranged parallel to the mounting plate (45). The end of the limiting rack (41) away from the limiting rack (23) has a guide shaft (411) protruding. The guide shaft (411) is movably installed through the limiting guide hole (461). An elastic element (47) is sleeved on the guide shaft (411). One end of the elastic element (47) is connected to the fixing block (46), and the other end is connected to the limiting rack (41).

4. The fully automatic needle-changing bed according to claim 2, characterized in that: The type-changing drive assembly (60) includes a type-changing drive component (61), a driving belt gear (62), and a driven belt gear (63). The driving belt gear (62) and the driven belt gear (63) are rotatably disposed at symmetrical ends of the top bracket (20) near the top contact notch (451) and are connected by a synchronous belt (64). The synchronous belt (64) is arranged parallel to the second linear guide rail (25). The type-changing moving component (50) is fixedly connected to one side of the synchronous belt (64) and moves with the synchronous belt. 64) Synchronous movement, the type-changing drive component (61) is fixed to the side of the top bracket (20), the transmission end of the type-changing drive component (61) is connected to the drive belt gear (62) through the transmission connecting shaft (65), the limiting tooth block (41) is provided with a toggle protrusion (412) on the side near the mounting strip (45), the toggle protrusion (412) is spaced on the top contact notch (451), and can reciprocate along the top contact notch (451) perpendicular to the length direction of the limiting toothed rack (23).

5. The fully automatic needle-changing bed according to claim 4, characterized in that: The changing moving part (50) includes a support plate (51), a telescopic cylinder (52), a third linear guide rail (53), and a sliding plate (54). The support plate (51) is installed on the lower side of the synchronous belt (64) via a clamping connector (70). The two third linear guide rails (53) are parallel and fixed at symmetrical ends on the side of the support plate (51) away from the synchronous belt (64), and are arranged perpendicular to the second linear guide rail (25). The telescopic cylinder (52) is disposed between the two third linear guide rails (53) and installed on the support plate (51). The sliding plate (54) is connected via a clamping connector (70) to the lower side of the synchronous belt (64). The sliding block (541) is slidably mounted on the third linear guide rail (53). The end of the sliding plate (54) away from the limiting tooth block (41) is connected to the transmission end of the telescopic cylinder (52), and the other end is fixed with a top contact block (542) that matches the top contact notch (451). The top contact block (542) is used to move the actuating protrusion (412) and is fitted and connected to the mounting strip (45) through the top contact notch (451). The side of the sliding plate (54) away from the top contact block (542) is also provided with an avoidance notch (543) corresponding to the telescopic cylinder (52).

6. The fully automatic needle-changing bed according to claim 1, characterized in that: The lifting drive (22) is installed on the side of the top bracket (20) away from the cell tray (31). The top bracket (20) is also provided with a reversing assembly (80). The reversing assembly (80) includes a primary reversing housing (81), a secondary reversing housing (82), a drive shaft (83), and a drive lifting screw (84). The primary reversing housing (81) is fixed to the side of the lifting drive (22) and located in the middle of the top bracket (20). The secondary reversing housing (82) is installed on the side of the top bracket (20), away from the cell tray (31). 82) The drive shaft (83) is disposed at both symmetrical ends of the primary reversing gearbox (81) and fixed on the top bracket (20). A primary reversing bevel gear is rotatably mounted on the side of the primary reversing gearbox (81) near the secondary reversing gearbox (82). A secondary reversing bevel gear is rotatably mounted on the side of the secondary reversing gearbox (82) near the primary reversing gearbox (81). The drive shaft (83) is disposed between the primary reversing gearbox (81) and the secondary reversing gearbox (82). One end of the lifting drive (22) passes through the first-stage reversing housing (81) and is connected to the first-stage reversing bevel gear, and the other end passes through the second-stage reversing housing (82) and is connected to the second-stage reversing bevel gear. The transmission end of the lifting drive (22) extends into the first-stage reversing housing (81) and meshes with the first-stage reversing bevel gear through a transmission bevel gear. A third-stage reversing bevel gear is also rotatably installed in the second-stage reversing housing (82). The third-stage reversing bevel gear is arranged perpendicularly to the second-stage reversing bevel gear. The transmission lifting screw (84) is located between the top bracket (20) and the bottom bracket (10). One end of the transmission lifting screw (84) is rotatably mounted on the bottom bracket (10), and the other end passes through the top bracket (20) and the secondary reversing housing (82) in sequence, and is connected to the tertiary reversing bevel gear. The transmission lifting screw (84) is perpendicular to the transmission shaft (83), and the lifting bracket (30) is screwed to the transmission lifting screw (84).

7. The fully automatic needle changing bed according to claim 6, characterized in that: A guide rod (13) is also provided between the top support (20) and the bottom support (10). One end of the guide rod (13) is fixedly connected to the bottom support (10), and the other end passes through the lifting support (30) and is fixedly connected to the top support (20). The guide rod (13) is arranged on both sides of the transmission lifting screw (84).

8. The fully automatic needle-changing bed according to claim 1, characterized in that: The bottom support (10) has mounting posts (11) protruding on both sides, and a pallet initial positioning wedge (111) is fixed on the mounting post (11). The bottom support (10) also has a plurality of pallet initial support posts (12) arranged at equal intervals in the middle. The lifting support (30) has a first hollow groove (32) corresponding to the pallet initial positioning wedge (111) and a second hollow groove (33) corresponding to the pallet initial support post (12). The lifting support (30) also has pallet limiting wedges (34) symmetrically provided at both ends on the side of the lifting support (30) close to the top support (20).

9. The fully automatic needle-changing bed according to claim 1, characterized in that: The top bracket (20) is also equipped with a heat dissipation component (90) corresponding to the probe negative pressure module (40).

10. The fully automatic needle-changing bed according to claim 1, characterized in that: The limiting tooth block (41) is T-shaped.

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