Flexible manipulator protection device

The design of the flexible robotic arm protective device solves the problems of difficult clamping force control and easy damage to battery cells, achieving flexible clamping and protection, and is suitable for battery cell transfer in the battery production process.

CN224144684UActive Publication Date: 2026-04-21中汽新能(滁州)电池科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中汽新能(滁州)电池科技有限公司
Filing Date
2025-05-21
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing robotic grippers have difficulty controlling the clamping force when clamping battery cells, which can easily cause damage and dents on the surface of the cells. Furthermore, during transport, the cells are prone to falling off due to vibration or swinging of the robotic arm, resulting in damage.

Method used

A flexible robotic arm protective device was designed. The device uses a bidirectional screw to drive the clamping plate to move. Combined with the abutment rod, slide bar and spring mechanism, it can achieve flexible clamping and automatic extension of the protective plate to prevent the battery cell from being over-clamped and falling.

Benefits of technology

It effectively controls clamping force, prevents damage to the battery cell surface, and protects the battery cell from falling off when the robotic arm shakes. It is suitable for battery cells of different sizes.

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Abstract

The utility model discloses a flexible manipulator protection device, which relates to the technical field of battery production and comprises a two-way screw, moving blocks are arranged on the two-way screw, one moving block is fixedly connected with a first connecting plate, the other moving block is connected with a second connecting plate, a first connecting frame is fixedly arranged at the bottom of the first connecting plate, and a second connecting frame is fixedly arranged at the bottom of the second connecting plate. A second connecting frame is fixedly arranged at the bottom of the second connecting plate, clamping plates are slidably arranged on the first connecting frame and the second connecting frame, and a protective plate is slidably arranged on the second connecting frame; the two-way screw can be rotated to drive the two clamping plates to move at the same time, the battery cell can be flexibly clamped through the compression springs, the battery cell can be prevented from being excessively clamped through the abutting rods, and when the clamping plates get close to each other, a third spring and a second spring accumulate force through movement of the downward pressing frame and the clamping plates; a third spring and a second spring are released, so that a protection plate extends into the bottom of the battery cell to protect the battery cell, and the battery cell can be prevented from falling off.
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Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a flexible robotic arm protective device. Background Technology

[0002] With the gradual development of the new energy industry, the market demand for batteries is increasing. Battery production is a relatively complex process, which mainly includes the following links: raw material preparation, electrode manufacturing, battery assembly, formation and aging, as well as testing and packaging. Each of these links contains multiple steps.

[0003] In the battery production process, there are many places where grippers are needed to handle and transfer battery cells, such as the cell pre-stacking stage, the transfer stage, and the casing stage.

[0004] The transfer process involves pre-stacking the battery cells in the required positions. During the transfer, the battery cells are picked up from the battery cell tray by grippers and moved from one position to another. Existing robotic grippers use cylinder pressure to clamp the battery cells and then handle the process turnover. However, the clamping force of the robotic grippers is difficult to control, and the clamping force acts directly on the surface of the battery cells, which can easily cause damage and dents to the surface of the battery cells. Furthermore, if the robotic arm vibrates or swings significantly during the transfer process, the battery cells can easily fall off the robotic arm due to inertia, causing damage to the battery cells. Utility Model Content

[0005] The purpose of this invention is to provide a flexible robotic arm protective device to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible robotic arm protective device, comprising a bidirectional screw, on which two movable blocks are threadedly connected, one of which is fixedly connected to a first connecting plate, and the other is fixedly connected to a second connecting plate. A first connecting frame is fixedly disposed at the bottom of the first connecting plate, and a second connecting frame is fixedly disposed at the bottom of the second connecting plate. Clamping plates are slidably disposed on both the first and second connecting frames, and a protective plate is slidably disposed on the second connecting frame. An abutment mechanism is disposed on the first connecting plate.

[0007] Preferably, the abutting mechanism includes an abutting rod threadedly connected to the first connecting plate, and four compression springs are fixedly arranged between the first connecting frame, the second connecting frame and the clamping plate.

[0008] Preferably, a slide rod is slidably disposed on the second connecting plate, a first spring is fixedly disposed between the end of the slide rod away from the first connecting plate and the second connecting plate, and a pressing mechanism is fixedly disposed at the end of the slide rod away from the first connecting plate.

[0009] Preferably, the pressing mechanism includes a drive frame fixedly disposed at the end of the slide rod away from the first connecting plate, a drive rod slidably disposed within the drive frame, a pressing frame fixedly disposed on the drive rod, and the pressing frame slidably connected to the second connecting frame.

[0010] Preferably, a sleeve is fixedly installed on the second connecting frame, a lifting rod is slidably installed inside the sleeve, the lifting rod is fixedly connected to the lower pressure frame, a connecting rod is slidably installed inside the lifting rod, the end of the connecting rod away from the lifting rod is slidably connected to the protective plate, and a second spring is fixedly installed between the lifting rod and the protective plate.

[0011] Preferably, a telescopic rod is fixedly installed at the end of the protective plate away from the first connecting plate, and a fixed rod is fixedly installed on the side of the second connecting frame away from the first connecting plate. A first spring is sleeved on the fixed rod, and a third spring is fixedly connected to the telescopic rod at the end away from the second connecting frame. The fixed rod is slidably connected to the telescopic rod.

[0012] In the above technical solution, this utility model provides a flexible manipulator protective device with the following beneficial effects: by rotating the bidirectional screw, the two clamping plates can be moved simultaneously; by each compression spring, the battery cell can be flexibly clamped; by the abutment rod, the battery cell can be prevented from being over-clamped; when the clamping plates are close to each other, the movement of the lower pressure frame and the clamping plates causes the third spring and the second spring to store force; when the battery cell is lifted, the third spring and the second spring are released, allowing the protective plate to extend into the bottom of the battery cell to protect the battery cell and prevent the battery cell from falling. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the clamping plate provided in an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the second connecting frame provided in an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the lower pressure frame provided in an embodiment of the present utility model;

[0018] Figure 5 A schematic diagram of the connecting rod provided in an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Bidirectional screw; 2. Limiting rod; 3. Moving block; 4. First connecting plate; 5. Abutting rod; 6. First connecting frame; 7. Clamping plate; 8. Compression spring; 9. Second connecting frame; 10. Second connecting plate; 11. Slide rod; 12. First spring; 13. Drive frame; 14. Drive rod; 15. Lower pressing frame; 16. Sleeve; 17. Lifting rod; 18. Connecting rod; 19. Second spring; 20. Protective plate; 21. Telescopic rod; 22. Fixing rod; 23. Third spring. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Please see Figure 1-5 A flexible robotic arm protective device, the technical solution proposed in this utility model includes a bidirectional screw 1, on which two movable blocks 3 are threadedly connected. One movable block 3 is fixedly connected to a first connecting plate 4, and the other movable block 3 is fixedly connected to a second connecting plate 10. A first connecting frame 6 is fixedly installed at the bottom of the first connecting plate 4, and a second connecting frame 9 is fixedly installed at the bottom of the second connecting plate 10. Clamping plates 7 are slidably installed on both the first connecting frame 6 and the second connecting frame 9. A protective plate 20 is slidably installed on the second connecting frame 9. An abutment mechanism is provided on the first connecting plate 4. A limit rod 2 is fixedly installed on the robotic arm to limit the two movable blocks 3 and prevent them from rotating. The bidirectional screw 1 is rotatably mounted on the robotic arm. Rotating the bidirectional screw 1 can make the two movable blocks 3 move closer or further apart simultaneously. One of the two movable blocks 3 is connected to... The first connecting plate 4 is fixedly connected, and the other is fixedly connected to the second connecting plate 10. When it is necessary to clamp the battery cell, the bidirectional screw 1 is rotated to bring the two moving blocks 3 closer to each other. As the moving plates move, the first connecting frame 6 and the second connecting frame 9 move closer to each other, thereby bringing the two clamping plates 7 closer to each other. During the process of the two clamping plates 7 moving closer to each other, the abutting mechanism on the first connecting plate 4 abuts against the second connecting plate 10. At this time, the first connecting plate 4 and the second connecting plate 10 can no longer move closer to each other, thus effectively preventing the two clamping plates 7 from moving excessively and causing excessive clamping of the battery cell. At the same time, after the battery cell is clamped by the two clamping plates 7, the clamped battery cell is lifted by the mechanical arm. At this time, the protective plate 20 extends to the bottom of the battery cell to support the bottom of the battery cell. Even if the mechanical arm shakes significantly during the process of the mechanical arm moving the battery cell, it can prevent the battery cell from falling.

[0023] Specifically, the abutment mechanism includes an abutment rod 5 threadedly connected to the first connecting plate 4. Four compression springs 8 are fixedly installed between the first connecting frame 6, the second connecting frame 9, and the clamping plate 7. The abutment rod 5 has a threaded groove. The elastic force of the compression spring 8 is determined by the spring constant and deformation. When the elastic force of the compression spring 8 is sufficient to stably clamp the battery cell and prevent it from falling after being lifted, there is no need to increase the pressure to prevent the battery cell from being over-clamped and damaged. However, in the actual production process, the actual deformation of the compression springs 8 on the two clamping plates 7 is significant. The quantity is not easy to control, which makes it difficult to control the clamping force. At this time, the abutment rod 5, which is threadedly connected to the first connecting plate 4, can fix the distance between the first connecting plate 4 and the second connecting plate 10 each time it is clamped. That is, the deformation of the compression spring 8 can be fixed according to the distance between the first connecting plate 4 and the second connecting plate 10, thereby preventing the two moving blocks 3 from getting too close and causing the battery cell to be damaged. By rotating the abutment rod 5, the length of the abutment rod 5 between the first connecting plate 4 and the second connecting plate 10 can be adjusted, so that it can be used for battery cells of different sizes.

[0024] Specifically, a slide rod 11 is slidably mounted on the second connecting plate 10. A first spring 12 is fixedly mounted between the end of the slide rod 11 away from the first connecting plate 4 and the second connecting plate 10. A pressing mechanism is fixedly mounted on the end of the slide rod 11 away from the first connecting plate 4. The slide rod 11 is slidably mounted on the second connecting plate 10. When the abutment rod 5 approaches the second connecting plate 10, the abutment rod 5 pushes the end of the slide rod 11 near the first connecting rod 18 to move, thereby stretching the first spring 12. At this time, the slide rod 11 drives the pressing mechanism to move down, thereby storing force in the protective plate 20. When the battery cell is lifted, the protective plate 20 extends from below the clamping plate 7 to protect the bottom of the battery cell. When the end of the slide rod 11 near the first connecting plate 4 is flush with the side of the second connecting plate 10 near the first connecting plate 4, the slide rod 11 no longer moves.

[0025] Specifically, the pressing mechanism includes a drive frame 13 fixedly mounted at one end of the slide rod 11 away from the first connecting plate 4. A drive rod 14 is slidably mounted inside the drive frame 13. A pressing frame 15 is fixedly mounted on the drive rod 14. The pressing frame 15 is slidably connected to the second connecting frame 9. The pressing frame 15 slides up and down on the second connecting frame 9. When the slide rod 11 moves away from the first connecting rod 18, the inclined drive frame 13 drives the drive rod 14 to move downward, thereby causing the pressing frame 15 to move downward.

[0026] Specifically, a sleeve 16 is fixedly installed on the second connecting frame 9, and a lifting rod 17 is slidably installed inside the sleeve 16. The lifting rod 17 is fixedly connected to the lower pressing frame 15, and a connecting rod 18 is slidably installed inside the lifting rod 17. The end of the connecting rod 18 away from the lifting rod 17 is slidably connected to the protective plate 20. A second spring 19 is fixedly installed between the lifting rod 17 and the protective plate 20. The bottom of the protective plate 20 is aligned with the bottom of the clamping plate 7. The sleeve 16 is used to limit the lifting rod 17. Two vertical grooves (not shown in the figure) are opened on both sides of the sleeve 16. The two sides of the lifting rod 17 are fixedly connected to the two sides of the lower pressing frame 15. When in use, the two clamping plates 7 are first moved to the battery cell by the control of the robotic arm, and the bottom of the clamping plates 7 is aligned with the bottom of the battery cell. At this time, the bidirectional screw 1 is rotated, and the bidirectional screw 1 controls the clamping plates 7 to move closer to each other. When the clamping plates 7 contact the battery cell, the compression springs 8 begin to compress. The holding plate 7 moves towards the first connecting frame 6 or the second connecting frame 9. Since the protective plate 20 is aligned with the clamping plate 7, the protective plate 20 moves towards the second connecting frame 9. As the abutment rod 5 pushes the slide rod 11 to move, the lower pressure frame 15 moves down through the drive frame 13. When the lower pressure frame 15 moves down, it drives the lifting rod 17 to move down. When the lifting rod 17 moves down, if the support platform of the battery cell is flush with the bottom of the battery cell, the second spring 19 starts to store force. When the battery cell leaves the support platform, the second spring 19 releases its stored force, and the protective plate 20 moves down. At this time, the upper surface of the protective plate 20 is slightly lower than the ground of the clamping plate 7. As the clamping plate 7 no longer blocks the protective plate 20, the protective plate 20 extends from the bottom of the clamping plate 7 to protect the battery cell. If the edge of the support platform of the battery cell is lower than the bottom of the battery cell, the protective plate 20 will extend directly to protect the bottom of the battery cell.

[0027] Specifically, a telescopic rod 21 is fixedly installed at the end of the protective plate 20 away from the first connecting plate 4, and a fixed rod 22 is fixedly installed on the side of the second connecting frame 9 away from the first connecting plate 4. A first spring 12 is sleeved on the fixed rod 22, and a third spring 23 is fixedly connected to the telescopic rod 21 at the end away from the second connecting frame 9. The fixed rod 22 and the telescopic rod 21 are slidably connected. The protective plate 20 can slide up and down and left and right on the second connecting frame 9. When the clamping plate 7 on the second connecting frame 9 moves towards the second connecting frame 9, the clamping plate 7 pushes the protective plate 20 towards the telescopic rod 21, at which time the first spring 12 is stretched. When the battery cell is lifted, the protective plate 20 that abuts against the battery cell support platform is first released. At this time, the protective plate 20 is moved down by the third spring 23. When the protective plate 20 separates from the clamping plate 7, the third spring 23 returns to its original position, so that the protective plate 20 extends from the bottom of the clamping plate 7 to protect the battery cell. This can effectively prevent the battery cell from falling off the two clamping plates 7 when it moves. When the battery cell reaches the designated position, the screw is flipped. At this time, the moving blocks 3 move away from each other, so that the first connecting frame 6 and the second connecting frame 9 move away from each other. The abutment rod 5 separates from the slide rod 11. Then the first spring 12, the second spring 19, and the third spring 23 begin to return to their original positions, so as to facilitate the next clamping.

[0028] 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 flexible robot guard comprising a bidirectional screw (1), characterized in that, The bidirectional screw (1) is threaded with two moving blocks (3), one of which is fixedly connected to the first connecting plate (4), and the other is fixedly connected to the second connecting plate (10). The first connecting plate (4) is fixedly provided with a first connecting frame (6) at the bottom, and the second connecting plate (10) is fixedly provided with a second connecting frame (9) at the bottom. Both the first connecting frame (6) and the second connecting frame (9) are slidably provided with clamping plates (7). The second connecting frame (9) is slidably provided with a protective plate (20). The first connecting plate (4) is provided with an abutment mechanism.

2. A flexible manipulator guard according to claim 1, wherein, The abutting mechanism includes an abutting rod (5) threadedly connected to the first connecting plate (4), and four compression springs (8) are fixedly provided between the first connecting frame (6), the second connecting frame (9) and the clamping plate (7).

3. A flexible manipulator guard according to claim 2, wherein, A slide rod (11) is slidably provided on the second connecting plate (10). A first spring (12) is fixedly provided between the end of the slide rod (11) away from the first connecting plate (4) and the second connecting plate (10). A pressing mechanism is fixedly provided at the end of the slide rod (11) away from the first connecting plate (4).

4. A flexible manipulator guard according to claim 3, wherein, The pressing mechanism includes a drive frame (13) fixedly disposed at one end of the slide rod (11) away from the first connecting plate (4), a drive rod (14) is slidably disposed inside the drive frame (13), a pressing frame (15) is fixedly disposed on the drive rod (14), and the pressing frame (15) is slidably connected to the second connecting frame (9).

5. A flexible manipulator guard according to claim 4, wherein, A sleeve (16) is fixedly installed on the second connecting frame (9). A lifting rod (17) is slidably installed inside the sleeve (16). The lifting rod (17) is fixedly connected to the lower pressure frame (15). A connecting rod (18) is slidably installed inside the lifting rod (17). The end of the connecting rod (18) away from the lifting rod (17) is slidably connected to the protective plate (20). A second spring (19) is fixedly installed between the lifting rod (17) and the protective plate (20).

6. A flexible manipulator guard according to claim 5, wherein, The protective plate (20) is fixedly provided with a telescopic rod (21) at one end away from the first connecting plate (4), and a fixed rod (22) is fixedly provided on the side of the second connecting frame (9) away from the first connecting plate (4). A first spring (12) is sleeved on the fixed rod (22), and a third spring (23) is fixedly connected to the telescopic rod (21) at one end away from the second connecting frame (9). The fixed rod (22) is slidably connected to the telescopic rod (21).