A new energy battery shell assembling device
Through the coordinated design of the centering and clamping mechanisms, precise docking and automated feeding of new energy battery casings are achieved, solving the assembly deviation problem caused by traditional manual positioning and improving the sealing performance and production efficiency of battery casings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FAW VOLKSWAGEN POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional new energy battery casing assembly relies on manual positioning, resulting in low precision and easy misalignment between the casing and the top cover, as well as loose fastening, which affects the battery's sealing and safety. Furthermore, existing equipment cannot ensure that the top cover and casing are vertically aligned.
The design employs a coordinated centering and clamping mechanism, utilizing a motor-driven bidirectional screw to achieve precise docking between the housing and the top cover, and combining cylinder and toothed belt drive to achieve automated material unloading.
It significantly improves assembly precision, prevents misalignment and deformation, ensures the sealing and structural strength of the battery casing, and improves production efficiency and automation.
Smart Images

Figure CN224575101U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery production technology, and more specifically, to a new energy battery casing assembly device. Background Technology
[0002] Against the backdrop of the rapid development of the new energy vehicle industry, the assembly precision of the outer casing of new energy batteries, as core components, directly affects the battery's sealing performance, safety, and lifespan. The outer casing of a new energy battery typically consists of a shell and a top cover; the precise alignment and assembly of these two parts is crucial to ensuring the structural integrity of the casing. Traditional battery casing assembly relies heavily on manual positioning and operation. Operators visually align the casing and top cover before fastening them together. This method is not only inefficient but also prone to assembly deviations due to human error, easily leading to misalignment, loose connections, and other problems. This can affect the battery's waterproof and dustproof performance and even cause safety hazards such as short circuits. While some existing assembly equipment can assemble the casing and top cover, it struggles to ensure perpendicular alignment during fastening, making them susceptible to deformation due to uneven stress. Therefore, designing a device that automatically and precisely centers the casing and top cover and completes high-precision assembly has become a key technical challenge for improving the quality and production efficiency of new energy battery casing assembly. Utility Model Content In order to overcome the shortcomings of the existing technology, this utility model provides a new energy battery casing assembly device, which has the advantage of automatically and accurately assembling the battery casing and top cover.
[0003] To achieve the above objectives, this utility model provides the following technical solution: a new energy battery casing assembly device, comprising: A fixed plate is provided, with a support block fixedly installed at its top and a baffle fixedly installed on the back of the support block. A housing is placed on the top of the support block, with the back of the housing fitting against the front of the baffle. A vertical plate is fixedly installed behind the top of the fixed plate, with a first cylinder fixedly installed at the top of the vertical plate. A lifting plate is fixedly installed at the output end of the first cylinder, and a top cover is attached to the bottom of the lifting plate. A clamping mechanism is provided at the bottom end of the lifting plate; A centering and placement mechanism is disposed at the bottom end of the fixed plate; The centering and placement mechanism includes a limiting block. The outer surface of the limiting block is fixedly connected to the bottom end of the fixed plate. A first motor is fixedly installed on the left end of the limiting block. A first bidirectional screw is fixedly sleeved on the output end of the first motor. The outer surface of the first bidirectional screw is movably sleeved with the interior of the limiting block. A slider is threaded onto the outer surface of the first bidirectional screw. The outer surface of the slider is slidably connected with the interior of the limiting block. A connecting rod is fixedly installed on the back of the slider. A short rod is fixedly sleeved on the interior of the connecting rod at the end away from the slider. A moving block is fixedly installed on the end of the short rod away from the connecting rod.
[0004] As a preferred embodiment of this utility model, the clamping mechanism includes: A limiting rod, the top end of which is fixedly connected to the bottom end of the lifting plate, the outer surface of which is in contact with the outer surface of the top cover, a second motor is fixedly installed on the left end of the limiting rod, a second bidirectional screw is fixedly sleeved on the output end of the second motor, and the two ends of the second bidirectional screw are movably sleeved with the inside of the limiting rod. The outer surface of the second bidirectional screw is threaded with a round block, and a clamping plate is fixedly installed on the outer surface of the round block. The outer surface of the clamping plate is slidably connected to the inside of the limiting rod.
[0005] As a preferred embodiment of this utility model, an arc-shaped block is movably sleeved in the middle section of the second bidirectional screw, and the arc-shaped block is fixedly connected to the outer surface of the limiting rod.
[0006] As a preferred embodiment of this utility model, a base frame is fixedly installed at the bottom end of the fixing plate, and a base plate is fixedly installed at the bottom end of the base frame.
[0007] As a preferred embodiment of this utility model, a column is fixedly installed at the top of the base plate, a support plate is fixedly sleeved on the outer surface of the column, a second cylinder is fixedly installed at the bottom of the support plate, and a motion frame is fixedly sleeved at the output end of the second cylinder.
[0008] As a preferred embodiment of this utility model, a movable block is fixedly installed on the outer surface of the motion frame, and the outer surface of the movable block is slidably connected to the interior of the column.
[0009] As a preferred embodiment of this utility model, a lifting block is fixedly installed at the top of the motion frame, a round shaft is movably sleeved inside the right side of the lifting block, and a driven toothed pulley is fixedly sleeved on the outer surface of the round shaft.
[0010] As a preferred embodiment of this utility model, a third motor is fixedly installed on the left side of the front of the lifting block, and a rotating shaft is fixedly sleeved at the output end of the third motor, with the rotating shaft being movably sleeved inside the lifting block.
[0011] As a preferred embodiment of this utility model, a drive toothed pulley is fixedly sleeved on the outer surface of the rotating shaft, and the drive toothed pulley is connected to the driven toothed pulley through a toothed belt.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes the coordinated design of a centering and clamping mechanism. A first motor drives a first bidirectional screw to move symmetrically arranged moving blocks towards each other. With the help of a baffle, the housing is automatically pushed to the center position at the top of the support block. Simultaneously, a second motor drives a second bidirectional screw and a clamping plate to center and clamp the top cover. The limiting block ensures that the housing and the top cover are perfectly aligned when they are docked, avoiding the deviation problem of traditional manual positioning. This significantly improves assembly accuracy, effectively prevents problems such as loose fastening and housing deformation caused by misalignment, ensures the sealing and structural strength of the battery housing, and significantly reduces the defect rate.
[0013] 2. Through the support structure consisting of the base frame, base plate, and columns, combined with the motion frame driven by the second cylinder and the toothed belt transmission mechanism, the housing and top cover assembly can be automatically lifted to the specified height after assembly. The components are then moved laterally and unloaded through the cooperation of the drive toothed belt pulley and the driven toothed belt pulley. The entire assembly process can be completed without manual intervention. The unloading mechanism uses the stable lifting of the cylinder and the synchronous transmission of the toothed belt to ensure a smooth and undulating unloading process, which significantly improves the automation level and production efficiency of the production line. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the structure of the motion frame of this utility model; Figure 4 This is a cross-sectional view of the third motor of this utility model; Figure 5 This is a schematic diagram of the lifting block of this utility model; Figure 6 This is a cross-sectional structural diagram of the column of this utility model; Figure 7 This is a cross-sectional view of the limiting block of this utility model; Figure 8 This is a schematic diagram of the structure of the second bidirectional screw of this utility model.
[0015] In the diagram: 1. Fixed plate; 2. Support block; 3. Baffle; 4. Housing; 5. Limiting block; 6. First motor; 7. First bidirectional screw; 8. Slider; 9. Connecting rod; 10. Short rod; 11. Moving block; 12. Vertical plate; 13. First cylinder; 14. Lifting plate; 15. Limiting rod; 16. Second motor; 17. Second bidirectional screw; 18. Arc-shaped block; 19. Round block; 20. Clamping plate; 21. Top cover; 22. Base frame; 23. Base plate; 24. Column; 25. Support plate; 26. Second cylinder; 27. Moving frame; 28. Movable block; 29. Lifting block; 30. Round shaft; 31. Driven toothed pulley; 32. Third motor; 33. Rotating shaft; 34. Drive toothed pulley; 35. Toothed belt. Detailed Implementation
[0016] 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.
[0017] like Figures 1 to 8 As shown, this utility model provides a new energy battery casing assembly device, comprising: A fixed plate 1 is provided. A support block 2 is fixedly installed on the top of the fixed plate 1. A baffle 3 is fixedly installed on the back of the support block 2. A housing 4 is placed on the top of the support block 2. The back of the housing 4 is in contact with the front of the baffle 3. A vertical plate 12 is fixedly installed behind the top of the fixed plate 1. A first cylinder 13 is fixedly installed on the top of the vertical plate 12. A lifting plate 14 is fixedly installed at the output end of the first cylinder 13. A top cover 21 is attached to the bottom of the lifting plate 14. A clamping mechanism is provided at the bottom of the lifting plate 14. A centering and placement mechanism is provided at the bottom of the fixed plate 1; The centering and placement mechanism includes a limiting block 5, the outer surface of which is fixedly connected to the bottom end of the fixing plate 1. A first motor 6 is fixedly installed on the left end of the limiting block 5. A first bidirectional screw 7 is fixedly sleeved on the output end of the first motor 6. The outer surface of the first bidirectional screw 7 is movably sleeved with the inside of the limiting block 5. A slider 8 is threadedly sleeved on the outer surface of the first bidirectional screw 7. The outer surface of the slider 8 is slidably connected with the inside of the limiting block 5. A connecting rod 9 is fixedly installed on the back of the slider 8. A short rod 10 is fixedly sleeved on the inside of the connecting rod 9 at the end away from the slider 8. A moving block 11 is fixedly installed on the end of the short rod 10 away from the connecting rod 9.
[0018] The fixed plate 1 serves as the basic load-bearing structure, used to install components such as the support block 2 and the vertical plate 12, providing a stable installation platform for the entire assembly device. The support block 2 supports the housing 4, and the baffle 3 on its back can initially position the housing 4 to ensure accurate placement. The vertical plate 12 is used to install the first cylinder 13, which drives the top cover 21 to move up and down through the lifting plate 14 at the output end, achieving docking with the housing 4. The limiting block 5 in the centering and placement mechanism is fixed at the bottom of the fixed plate 1, providing installation and movement space for the first motor 6 and the first bidirectional screw 7. When the first motor 6 drives the first bidirectional screw 7 to rotate, the first bidirectional screw 7 drives the slider 8 to slide within the limiting block 5 through threaded engagement with the slider 8. The slider 8 drives the moving block 11 through the connecting rod 9 and the short rod 10, thereby adjusting the housing 4 placed on the support block 2 to the center position, ensuring accurate positioning of the housing 4 and facilitating subsequent assembly with the top cover 21.
[0019] The clamping mechanism includes: The limiting rod 15 is fixedly connected to the bottom end of the lifting plate 14 at its top end. The outer surface of the limiting rod 15 is in contact with the outer surface of the top cover 21. A second motor 16 is fixedly installed on the left end of the limiting rod 15. A second bidirectional screw 17 is fixedly sleeved on the output end of the second motor 16. Both ends of the second bidirectional screw 17 are movably sleeved with the inside of the limiting rod 15. The outer surface of the second bidirectional screw 17 is threaded with a round block 19, and a clamping plate 20 is fixedly installed on the outer surface of the round block 19. The outer surface of the clamping plate 20 is slidably connected to the inside of the limiting rod 15.
[0020] The outer surface of the limiting rod 15 contacts the top cover 21, which can assist in positioning the top cover 21. The second motor 16 is installed at the left end of the limiting rod 15 to drive the second bidirectional screw 17 to rotate. The two ends of the second bidirectional screw 17 are movably sleeved inside the limiting rod 15 to provide support for its rotation. The outer surface of the second bidirectional screw 17 is threadedly sleeved with the round block 19. The rotation drives the round block 19 to move. The clamping plate 20 fixed on the outer surface of the round block 19 is slidably connected to the inside of the limiting rod 15. Under the drive of the second bidirectional screw 17, the two clamping plates 20 can move towards or away from each other, thereby realizing the centering clamping and loosening of the top cover 21, ensuring that the top cover 21 is fixed and accurate in position when assembled with the housing 4.
[0021] Among them, the middle section of the second bidirectional screw 17 is movably sleeved with an arc-shaped block 18, and the arc-shaped block 18 is fixedly connected to the outer surface of the limiting rod 15.
[0022] The arc-shaped block 18 is movably sleeved on the middle section of the second bidirectional screw 17 and fixedly connected to the outer surface of the limiting rod 15. Its function is to provide an additional support point for the second bidirectional screw 17, enhance the stability of the second bidirectional screw 17 during rotation, reduce the swaying or offset that may occur due to the long screw, and ensure that the second bidirectional screw 17 can drive the round block 19 and the clamping plate 20 to move more smoothly, thereby improving the accuracy and reliability of clamping and positioning the top cover 21.
[0023] The bottom end of the fixing plate 1 is fixedly installed with a base frame 22, and the bottom end of the base frame 22 is fixedly installed with a base plate 23.
[0024] The base frame 22 and the base plate 23 at the bottom of the fixed plate 1 together form the bottom support structure of the device, making the device more stable and providing stable and reliable support for the entire assembly device.
[0025] The base plate 23 has a column 24 fixedly installed at the top, a support plate 25 fixedly sleeved on the outer surface of the column 24, a second cylinder 26 fixedly installed at the bottom of the support plate 25, and a motion frame 27 fixedly sleeved at the output end of the second cylinder 26.
[0026] The column 24 at the top of the base plate 23 provides vertical support and a mounting base for components such as the support plate 25 and the second cylinder 26; when the second cylinder 26 is running, it will drive the motion frame 27 to move up and down.
[0027] Among them, a movable block 28 is fixedly installed on the outer surface of the motion frame 27, and the outer surface of the movable block 28 is slidably connected to the inside of the column 24.
[0028] The movable block 28 on the outer surface of the motion frame 27 is slidably connected to the inside of the column 24. The sliding of the movable block 28 inside the column 24 provides guidance and limit for the up and down movement of the motion frame 27, preventing the motion frame 27 from deviating or shaking during the movement.
[0029] The top of the motion frame 27 is fixedly installed with a lifting block 29, and a round shaft 30 is movably sleeved inside the right side of the lifting block 29. A driven toothed pulley 31 is fixedly sleeved on the outer surface of the round shaft 30.
[0030] When the motion frame 27 moves up and down, it will drive the lifting block 29 to move up and down as a whole. The round shaft 30 is movably sleeved inside the right side of the lifting block 29, providing rotational support for the driven toothed pulley 31.
[0031] The third motor 32 is fixedly installed on the left side of the front of the lifting block 29. The output end of the third motor 32 is fixedly sleeved with a rotating shaft 33, which is movably sleeved with the inside of the lifting block 29.
[0032] When the third motor 32 is running, the shaft 33 will rotate inside the lifting block 29.
[0033] Among them, a drive toothed pulley 34 is fixedly sleeved on the outer surface of the rotating shaft 33, and the drive toothed pulley 34 is connected to the driven toothed pulley 31 through the toothed belt 35.
[0034] When the rotating shaft 33 rotates, it will drive the drive toothed pulley 34 to rotate. Since the drive toothed pulley 34 is connected to the driven toothed pulley 31 through the toothed belt 35, when the drive toothed pulley 34 rotates, it will drive the driven toothed pulley 31 to rotate through the toothed belt 35. During this process, the toothed belt 35 will rotate cyclically. If the toothed belt 35 is disengaged from the bottom of the housing 4, it will drive the housing 4 to move laterally to achieve the function of automatic feeding.
[0035] Working principle and usage process of this utility model: When the operator needs to assemble the housing 4 and the top cover 21, the operator first places the housing 4 on the top of the support block 2 and makes the back of the housing 4 fit against the front of the baffle 3, using the baffle 3 for initial positioning. Then the operator starts the first motor 6, which drives the first bidirectional screw 7 to rotate inside the limiting block 5. Since the outer surface of the first bidirectional screw 7 is threadedly connected to the two sliders 8, and the outer surface of the sliders 8 is slidably connected to the inside of the limiting block 5, the rotation of the first bidirectional screw 7 will drive the two sliders 8 to move towards each other along the inside of the limiting block 5. At this time, the sliders 8 drive the moving blocks 11 to move towards each other synchronously through the connecting rod 9 and the short rod 10 until the two moving blocks 11 contact the outer surface of the housing 4 and squeeze and push, adjusting the housing 4 to the center position of the top of the support block 2, ensuring the alignment accuracy with the top cover 21 in the future.
[0036] Then, the operator holds the top cover 21 and aligns its top end with the bottom end of the lifting plate 14. The operator then starts the second motor 16, which drives the second bidirectional screw 17 to rotate. Due to the design of the arc block 18, the second bidirectional screw 17 rotates more stably. Furthermore, because the outer surface of the second bidirectional screw 17 is threadedly connected to the two round blocks 19, and the clamping plate 20 fixed to the outer surface of the round blocks 19 is slidably connected to the inside of the limiting rod 15, the rotation of the second bidirectional screw 17 will drive the two clamping plates 20 to move towards each other along the inside of the limiting rod 15 through the two round blocks 19. Subsequently, the two clamping plates 20 will push the top cover 21 to the center of the bottom end of the lifting plate 14 and clamp it. At the same time, because the limiting rod 15 is in contact with the outer surface of the top cover 21, the accuracy of the alignment between the top cover 21 and the housing 4 will be further ensured.
[0037] After the top cover 21 is clamped, the operator starts the first cylinder 13. The first cylinder 13 drives the lifting plate 14 to move downward, so that the top cover 21 contacts the top of the housing 4. At this time, the first cylinder 13 continues to apply pressure, which will make the top cover 21 snap onto the top of the housing 4, completing the assembly of the two.
[0038] After the housing 4 and top cover 21 are assembled, the operator starts the second cylinder 26. At this time, the second cylinder 26 drives the movable block 28 and the lifting block 29 to move upward through the moving frame 27. At this time, the movable block 28 slides along the inside of the column 24 to ensure the stability of the moving frame 27 moving up and down. When the lifting block 29 moves upward as a whole, the toothed belt 35 contacts the bottom end of the housing 4 and lifts it upward. After the bottom end of the housing 4 is lifted above the moving block 11, the operator starts the third motor 32. The third motor 32 drives the drive toothed pulley 34 to rotate through the rotating shaft 33. At this time, the drive toothed pulley 34 drives the driven toothed pulley 31 to rotate through the toothed belt 35. Under the transmission of the toothed belt 35, the assembled housing 4 and top cover 21 components move to the right to realize automatic unloading.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0040] 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 new energy battery shell assembling device, characterized in that, Including: A fixed plate (1) is provided with a support block (2) fixedly installed at the top end of the fixed plate (1), a baffle (3) fixedly installed on the back side of the support block (2), a housing (4) is placed at the top end of the support block (2), the back side of the housing (4) is in contact with the front side of the baffle (3), a vertical plate (12) is fixedly installed behind the top end of the fixed plate (1), a first cylinder (13) is fixedly installed at the top end of the vertical plate (12), a lifting plate (14) is fixedly installed at the output end of the first cylinder (13), and a top cover (21) is attached to the bottom end of the lifting plate (14). A clamping mechanism is provided at the bottom end of the lifting plate (14); A centering and placement mechanism is provided at the bottom end of the fixed plate (1); The centering and placement mechanism includes a limiting block (5), the outer surface of which is fixedly connected to the bottom end of the fixing plate (1), a first motor (6) is fixedly installed on the left end of the limiting block (5), a first bidirectional screw (7) is fixedly sleeved on the output end of the first motor (6), the outer surface of the first bidirectional screw (7) is movably sleeved with the inside of the limiting block (5), a slider (8) is threadedly sleeved on the outer surface of the first bidirectional screw (7), the outer surface of the slider (8) is slidably connected with the inside of the limiting block (5), a connecting rod (9) is fixedly installed on the back of the slider (8), a short rod (10) is fixedly sleeved on the inside of the connecting rod (9) away from the slider (8), and a moving block (11) is fixedly installed on the end of the short rod (10) away from the connecting rod (9).
2. The new energy battery shell assembling device according to claim 1, characterized in that: The clamping mechanism includes: A limiting rod (15) is fixedly connected at its top end to the bottom end of the lifting plate (14). The outer surface of the limiting rod (15) is in contact with the outer surface of the top cover (21). A second motor (16) is fixedly installed at the left end of the limiting rod (15). A second bidirectional screw (17) is fixedly sleeved at the output end of the second motor (16). Both ends of the second bidirectional screw (17) are movably sleeved with the inside of the limiting rod (15). The outer surface of the second bidirectional screw (17) is threaded with a round block (19), and a clamping plate (20) is fixedly installed on the outer surface of the round block (19). The outer surface of the clamping plate (20) is slidably connected to the inside of the limiting rod (15).
3. The new energy battery shell assembling device according to claim 2, characterized in that: The middle section of the second bidirectional screw (17) is movably sleeved with an arc-shaped block (18), and the arc-shaped block (18) is fixedly connected to the outer surface of the limiting rod (15).
4. The new energy battery shell assembling device according to claim 1, characterized in that: The bottom end of the fixed plate (1) is fixedly installed with a base frame (22), and the bottom end of the base frame (22) is fixedly installed with a base plate (23).
5. The new energy battery shell assembling device according to claim 4, characterized in that: A column (24) is fixedly installed at the top of the base plate (23), a support plate (25) is fixedly sleeved on the outer surface of the column (24), a second cylinder (26) is fixedly installed at the bottom of the support plate (25), and a motion frame (27) is fixedly sleeved at the output end of the second cylinder (26).
6. The new energy battery shell assembling device according to claim 5, characterized in that: The outer surface of the motion frame (27) is fixedly installed with a movable block (28), and the outer surface of the movable block (28) is slidably connected to the inside of the column (24).
7. The new energy battery shell assembling device according to claim 5, characterized in that: A lifting block (29) is fixedly installed at the top of the motion frame (27). A round shaft (30) is movably sleeved inside the right side of the lifting block (29). A driven toothed pulley (31) is fixedly sleeved on the outer surface of the round shaft (30).
8. The new energy battery casing assembly device according to claim 7, characterized in that: A third motor (32) is fixedly installed on the left side of the front of the lifting block (29). A rotating shaft (33) is fixedly sleeved at the output end of the third motor (32). The rotating shaft (33) is movably sleeved with the inside of the lifting block (29).
9. The new energy battery shell assembling device according to claim 8, characterized in that: A drive toothed pulley (34) is fixedly sleeved on the outer surface of the rotating shaft (33), and the drive toothed pulley (34) is connected to the driven toothed pulley (31) through a toothed belt (35).