Battery pack binding distance-limiting mounting rack

Abstract

The utility model is used for battery processing technical field discloses a kind of battery package bundle belt fixed-distance limiting mounting bracket, including lifting electric push rod, the upper end of lifting electric push rod is fixedly connected with mounting plate, the upper surface of mounting plate is fixedly installed with transverse electric push rod, and the one end of transverse electric push rod is fixedly connected with, mounting block.This battery package bundle belt fixed-distance limiting mounting bracket, by lifting electric push rod and transverse electric push rod can realize the linear driving accuracy of ±0.1mm level, cooperate mounting block drive expansion rod accurate alignment, the engagement of expansion rod outside Z-shaped guide slot and the first function cylinder, second function cylinder inside guide post, can guide function cylinder along preset trajectory smooth sliding, simultaneously C-shaped limiting rod can form the stable limiting of two bundle belts simultaneously, completely satisfy the stringent requirement of CTP technology to structural member tolerance, effectively avoid the battery package vibration abnormal sound or heat conduction uneven problem caused by positioning deviation.

Description

Technical Field

[0001] This utility model relates to the field of battery processing technology, specifically to a battery pack strap spacing and limiting mounting bracket. Background Technology

[0002] Against the backdrop of the rapid development of new energy vehicles and energy storage, the structural stability and assembly precision of power battery packs directly determine the safety and energy density of the products. With the penetration of CTP (Cell to Pack) technology, battery pack manufacturing is transforming from the traditional three-level assembly mode to the "cell-battery pack" two-level mode. This transformation has put forward higher requirements for the belt spacing and limit installation - it not only needs to meet the positioning accuracy standard of ±0.5mm, but also needs to adapt to the large-size workpiece assembly requirements brought about by the modular design. The current battery pack strapping installation process has significant technical pain points: In traditional manual operation, it is difficult to accurately control the tightening force, often resulting in marks or deformation on components such as copper busbars. At the same time, because a safe distance must be maintained inside the battery pack, the strapping installation lacks a stable point of force, further exacerbating the risk of positioning deviation. Even with automated equipment, existing solutions still have limitations: First, although general strapping machines can achieve basic strapping operations, they lack compatibility with different battery pack specifications, and the adjustment time for changing models is long, making it difficult to match the cycle time requirements of flexible production lines. Second, the accuracy of the limiting mechanism is insufficient, with some equipment having a repeatability error exceeding 0.1mm, which cannot meet the stringent requirements of CTP technology for structural component tolerances of ±0.2mm, easily causing battery pack vibration and abnormal noise or uneven heat conduction. Third, the guide system is poorly designed, and common jamming phenomena lead to poor consistency in strap spacing. Data from a leading company shows that such problems can shorten battery cycle life. Utility Model Content

[0003] The purpose of this utility model is to provide a battery pack strap spacing and limiting mounting bracket to solve the problem of insufficient strap installation positioning accuracy mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a battery pack strap spacing and limiting mounting bracket, including a lifting electric push rod, an mounting plate fixedly connected to the upper end of the lifting electric push rod, a transverse electric push rod fixedly mounted on the upper surface of the mounting plate, and an mounting block fixedly connected to one end of the transverse electric push rod, a release electric push rod fixedly mounted on the lower end face of the mounting block, and an expansion rod fixedly connected to one end of the release electric push rod, a guide groove being provided on the outer surface of the expansion rod, a switching electric push rod fixedly provided on the lower outer surface of the expansion rod, a first functional cylinder fixedly mounted on the upper end of the switching electric push rod, a rotating connecting cylinder mounted on the upper end of the first functional cylinder, and a rotating second functional cylinder mounted on the upper end of the connecting cylinder, with limit rods fixedly provided on the outer surfaces of the first and second functional cylinders; The inner surfaces of the first and second functional cylinders are fixedly provided with guide posts, the lower surface of the mounting plate is fixedly provided with a mounting rod, and the lower outer surface of the mounting rod is fixedly installed with a limit electric push rod, and one end of the limit electric push rod is fixedly connected to a limit fork.

[0005] Preferably, the guide groove is a Z-shaped design, and the two guide grooves are staggered vertically, with the inclination directions of the middle sections of the two guide grooves being opposite.

[0006] By adopting the above technical solution, the Z-shaped design and staggered tilting structure of the guide groove can drive the first and second functional cylinders to complete the compound action of "lifting and rotating" during the lifting and lowering of the expansion rod. Different specifications of belts can be adapted without disassembling and replacing parts, which greatly improves the cycle time adaptability of the flexible production line.

[0007] Preferably, the first and second functional cylinders are concentrically arranged with the expansion rod, and the first and second functional cylinders are slidably connected with the expansion rod.

[0008] By adopting the above technical solution, the sliding process of the first and second functional cylinders on the expansion rod can be more stable. At the same time, the concentric setting facilitates precise control of the relative position of the functional cylinders and the expansion rod, providing a reliable foundation for the subsequent positioning and installation of the strap.

[0009] Preferably, the limiting rod is C-shaped, and the limiting rods on the surfaces of the first and second functional cylinders face opposite directions.

[0010] Using the above technical solution, the C-shaped limiting rod design can form a stable clamping and limiting position for the straps, while the opposite orientation of the limiting rods on the surfaces of the first and second functional cylinders can achieve stable limiting of the two straps at the same time, meeting the dual limiting requirements during battery pack strap installation.

[0011] Preferably, the first functional cylinder and the second functional cylinder are engaged with the guide groove by a guide post, and the diameter of the guide post is smaller than the width of the guide groove.

[0012] By adopting the above technical solution, the first and second functional cylinders can slide smoothly along the preset trajectory of the guide groove through the engaging installation of the guide post and the guide groove. At the same time, the design that the diameter of the guide post is smaller than the width of the guide groove not only ensures the smoothness of the sliding, but also further improves the positioning accuracy of the limit rod.

[0013] Preferably, the limiting fork has a C-shaped design, and the end of the limiting fork facing the expansion rod has a flared design with the opening gradually increasing in size.

[0014] Using the above technical solution, the C-shaped limiting fork design can form a stable limiting structure for the strap, while the flared design facing the expansion rod end can play a guiding role during the installation of the strap, making it easier for the strap to smoothly enter the limiting area, thus improving the convenience and stability of installation.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the battery pack strap spacing and limiting mounting bracket: 1. The lifting electric push rod and the lateral electric push rod can achieve a linear drive accuracy of ±0.1mm. With the help of the mounting block, the expansion rod is precisely aligned. The Z-shaped guide groove on the outside of the expansion rod engages with the guide posts on the inside of the first and second functional cylinders, which can guide the functional cylinder to slide smoothly along the preset trajectory. At the same time, the C-shaped limiting rod can simultaneously and stably limit the two straps. Combined with the C-shaped limiting fork driven by the limiting electric push rod, the double limiting of the strap installation is achieved, and the overall positioning accuracy is controlled within ±0.2mm. This fully meets the stringent requirements of CTP technology for structural component tolerances and effectively avoids problems such as battery pack vibration and noise or uneven heat conduction caused by positioning deviation. 2. Addressing the compatibility issues of installing battery pack straps of different specifications, this mounting bracket achieves rapid adaptation through switchable functional components. The switchable electric push rod can drive the first functional cylinder to slide along the expansion rod axis. Combined with the connecting cylinder's rotational connection between the first and second functional cylinders, the angles of the two sets of limit rods can be flexibly adjusted. The Z-shaped guide grooves, which are staggered vertically and tilted in opposite directions in the middle, can drive the first and second functional cylinders to simultaneously complete the "lifting + rotation" compound action during the lifting and lowering of the expansion rod through the guide column. Different specifications of straps can be adapted without disassembling or replacing parts, greatly improving the cycle time adaptability of flexible production lines. 3. The PLC system enables linkage control, allowing the entire process of "positioning-limiting-installation-release" to be completed without manual intervention. At the same time, the closed-loop control design of each electric push rod can provide real-time feedback of position signals. Combined with the stable guidance of the guide groove and guide column, it avoids the accuracy decay caused by mechanical wear in traditional equipment, ensuring that the repeated positioning error of the equipment during continuous operation is still maintained, thus meeting the stability requirements of large-scale production of power battery packs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the connection between the mounting rod, the limiting electric push rod, and the limiting fork of this utility model; Figure 3 This is a three-dimensional structural diagram showing the connection between the mounting plate, the transverse electric push rod, and the mounting block of this utility model; Figure 4 This is a three-dimensional structural diagram of the connection between the expansion rod, the switching electric push rod, and the first functional cylinder of this utility model; Figure 5 This is a three-dimensional structural diagram of the cross-sectional view of the expansion rod, guide groove, and switching electric push rod of this utility model; Figure 6 This is a three-dimensional structural diagram of the connection between the expansion rod and the guide groove of this utility model; Figure 7 This is a three-dimensional structural diagram of the connection between the second functional cylinder, the limiting rod, and the guide column of this utility model.

[0017] In the diagram: 1. Lifting electric push rod; 2. Mounting plate; 3. Lateral electric push rod; 4. Mounting block; 5. Disengagement electric push rod; 6. Expansion rod; 7. Guide groove; 8. Switching electric push rod; 9. First functional cylinder; 10. Connecting cylinder; 11. Second functional cylinder; 12. Limiting rod; 13. Guide column; 14. Mounting rod; 15. Limiting electric push rod; 16. Limiting fork. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-7 This utility model provides a technical solution: a battery pack strap spacing and limiting mounting bracket.

[0020] Example 1: This example discloses a lifting electric push rod 1, with a mounting plate 2 fixedly connected to the upper end of the lifting electric push rod 1. A horizontal moving electric push rod 3 is fixedly installed on the upper surface of the mounting plate 2, and a mounting block 4 is fixedly connected to one end of the horizontal moving electric push rod 3. A release electric push rod 5 is fixedly installed on the lower end face of the mounting block 4, and an expansion rod 6 is fixedly connected to one end of the release electric push rod 5. A guide groove 7 is provided on the outer surface of the expansion rod 6. A switching electric push rod 8 is fixedly installed on the lower outer surface of the expansion rod 6, and a first functional cylinder 9 is fixedly installed on the upper end of the switching electric push rod 8. A rotating connecting cylinder 10 is installed on the upper end of the first functional cylinder 9, and a rotating second functional cylinder 11 is installed on the upper end of the connecting cylinder 10. Limiting rods 12 are fixedly provided on the outer surfaces of the first functional cylinder 9 and the second functional cylinder 11. The guide groove 7 is designed in a Z-shape, and the two guide grooves 7 are staggered vertically, with the middle sections of the two guide grooves 7 tilting in opposite directions; The first functional cylinder 9 and the second functional cylinder 11 are concentrically arranged with the expansion rod 6, and the first functional cylinder 9 and the second functional cylinder 11 are slidably connected with the expansion rod 6; The limiting rod 12 has a C-shaped design, and the limiting rod 12 on the surfaces of the first functional cylinder 9 and the second functional cylinder 11 faces opposite directions; When the battery pack straps need to be installed, the straps are placed between the limiting rods 12. Then, the horizontal electric push rod 3 moves, which drives the release electric push rod 5, expansion rod 6 and other components to move horizontally through the mounting block 4, thereby expanding the straps. The lifting electric push rod 1 is activated, which drives the mounting plate 2 to rise and fall vertically, thereby adjusting the height of the entire mounting frame so that it is aligned with the battery pack installation position in the vertical direction. Then, the electric push rod 8 is switched to drive the first functional cylinder 9 to slide along the axial direction of the expansion rod 6. The connecting cylinder 10 realizes the rotational connection between the first functional cylinder 9 and the second functional cylinder 11. The Z-shaped guide groove 7 realizes the "lifting + rotation" compound action during the lifting of the first functional cylinder 9 and the second functional cylinder 11, so that the C-shaped limiting rod 12 rotates to release the clamping of the upper and lower straps, completing the initial release of the straps.

[0021] Example 2: This example discloses the following based on Example 1: Guide posts 13 are fixedly provided on the inner surfaces of the first functional cylinder 9 and the second functional cylinder 11, and mounting rods 14 are fixedly provided on the lower surface of the mounting plate 2. A limit electric push rod 15 is fixedly installed on the lower outer surface of the mounting rod 14, and a limit fork 16 is fixedly connected to one end of the limit electric push rod 15. The first functional cylinder 9 and the second functional cylinder 11 are engaged with the guide groove 7 by the guide post 13, and the diameter of the guide post 13 is smaller than the width of the guide groove 7. The limiting fork 16 has a C-shaped design, and the end of the limiting fork 16 facing the expansion rod 6 has a flared design with the opening gradually increasing in size. The guide post 13 inside the first functional cylinder 9 and the second functional cylinder 11 engages with the guide groove 7 outside the expansion rod 6, so that the functional cylinder can move strictly along the preset trajectory of the guide groove 7 during the movement, which further improves the positioning accuracy of the limit rod 12. Meanwhile, the mounting rod 14, the limiting electric push rod 15, and the limiting fork 16 on the lower surface of the mounting plate 2 play their roles. After the strap is initially released, the limiting electric push rod 15 pushes the C-shaped limiting fork 16 closer to the battery pack. The flared structure facilitates the smooth entry of the strap into the limiting area. Then, the disengaging electric push rod 5 drives the expansion rod 6 to move upward as a whole. At this time, the strap gradually disengages from the expansion rod 6. At the same time, the limiting fork 16 stabilizes and limits the strap until the strap is completely disengaged from the expansion rod 6. At this time, the strap elastically retracts under the state of being limited by the limiting fork 16 to restrain the battery pack.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery pack strap spacing and limiting mounting bracket, comprising a lifting electric push rod (1), wherein the upper end of the lifting electric push rod (1) is fixedly connected to a mounting plate (2), characterized in that: A transverse electric push rod (3) is fixedly installed on the upper surface of the mounting plate (2), and a mounting block (4) is fixedly connected to one end of the transverse electric push rod (3). A release electric push rod (5) is fixedly installed on the lower end face of the mounting block (4), and an expansion rod (6) is fixedly connected to one end of the release electric push rod (5). A guide groove (7) is opened on the outer surface of the expansion rod (6). A switching electric push rod (8) is fixedly installed on the lower outer surface of the expansion rod (6), and a first functional cylinder (9) is fixedly installed on the upper end of the switching electric push rod (8). A rotating connecting cylinder (10) is installed on the upper end of the first functional cylinder (9), and a rotating second functional cylinder (11) is installed on the upper end of the connecting cylinder (10). A limit rod (12) is fixedly installed on the outer surfaces of the first functional cylinder (9) and the second functional cylinder (11).

2. The battery pack strap spacing and limiting mounting bracket according to claim 1, characterized in that: The inner surfaces of the first functional cylinder (9) and the second functional cylinder (11) are fixedly provided with guide posts (13), the lower surface of the mounting plate (2) is fixedly provided with mounting rod (14), and the lower outer surface of the mounting rod (14) is fixedly installed with a limit electric push rod (15), and one end of the limit electric push rod (15) is fixedly connected to a limit fork (16).

3. The battery pack strap spacing and limiting mounting bracket according to claim 1, characterized in that: The guide groove (7) is designed in a Z-shape, and the two guide grooves (7) are staggered vertically, and the inclination directions of the middle sections of the two guide grooves (7) are opposite.

4. The battery pack strap spacing and limiting mounting bracket according to claim 1, characterized in that: The first functional cylinder (9) and the second functional cylinder (11) are concentrically arranged with the expansion rod (6), and the first functional cylinder (9) and the second functional cylinder (11) are slidably connected with the expansion rod (6).

5. The battery pack strap spacing and limiting mounting bracket according to claim 1, characterized in that: The limiting rod (12) is C-shaped, and the limiting rods (12) on the surfaces of the first functional cylinder (9) and the second functional cylinder (11) face opposite directions.

6. The battery pack strap spacing and limiting mounting bracket according to claim 2, characterized in that: The first functional cylinder (9) and the second functional cylinder (11) are engaged with the guide groove (7) by a guide post (13), and the diameter of the guide post (13) is smaller than the width of the guide groove (7).

7. A battery pack strap spacing and limiting mounting bracket according to claim 2, characterized in that: The limiting fork (16) is C-shaped, and the end of the limiting fork (16) facing the expansion rod (6) is a flared mouth with a gradually increasing opening.

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