A dynamic transfer system and a dynamic transfer method

Abstract

The application relates to a dynamic transfer system and a dynamic transfer method, the system comprising a first conveying line, a second conveying line and a transfer conveying line, a guide rail being arranged on the transfer conveying line, a material taking section being arranged on the first conveying line, the guide rail being arranged side by side with the first section having the same speed as the material taking section on one side close to the material taking section, a material placing section being arranged on the second conveying line, the guide rail being arranged side by side with the second section having the same speed as the material placing section on one side close to the material placing section. When the battery moves to the material taking section through the first conveying line, the battery clamping device on the transfer conveying line can clamp the battery, then the transfer conveying line moves along the guide rail with the battery, when the transfer conveying line moves to the position of the second section, the transfer conveying line places the battery on the material placing section with the same speed on the second conveying line, so that the transfer of the battery is realized without manual operation, and the production efficiency of the battery is improved.

Description

Technical Field

[0001] This application relates to the technical field of new energy battery production, and in particular to a dynamic transfer system and dynamic transfer method. Background Technology

[0002] Lithium-ion batteries are widely used in products such as power banks and new energy vehicles due to their advantages of large capacity, small size, and high safety. Current lithium-ion batteries typically consist of a cell, a top cover, and a casing.

[0003] In the lithium battery production process, after the cell is manufactured, the top cover is usually welded to the cell first, and then the outer casing is placed over the cell. This step is usually called casing installation. After casing installation, the cells are pressed together, and then the outer casing is welded to the top cover. The casing installation and pressing steps are usually set on two different conveyor lines from the outer casing to the top cover welding steps. Currently, batteries are generally transferred manually from the casing installation conveyor line to the outer casing to the top cover welding conveyor line. However, manual methods have low production efficiency. In view of this, this application proposes a dynamic transfer system. Summary of the Invention

[0004] To address the aforementioned technical problems, this application proposes a dynamic transfer system and a dynamic transfer method, employing the following technical solution:

[0005] In a first aspect, this application proposes a dynamic transfer system, which includes a first conveyor line, a second conveyor line and a transfer conveyor line. The transfer conveyor line is provided with a guide rail and a battery clamping device slidably disposed on the guide rail. The first conveyor line is provided with a first section parallel to the material picking section, and the second conveyor line is provided with a material discharging section. The guide rail is provided with a second section parallel to the material discharging section on the side near the material discharging section.

[0006] The speed of the battery gripping device on the first section is the same as the conveying speed of the first conveyor line, and the speed of the battery gripping device on the second section is the same as the conveying speed of the second conveyor line.

[0007] By adopting the above technical solution, since the guide rail has a first section with the same speed as the picking section on the side close to the picking section, when the battery moves to the picking section through the first conveyor line, the battery clamping device on the transfer conveyor line can clamp the battery. Then the transfer conveyor line carries the battery along the guide rail. When the transfer conveyor line moves to the position of the second section, the transfer conveyor line places the battery on the unloading section of the second conveyor line with the same speed, thereby realizing the transfer of the battery without the need for manual transfer, thus improving the battery production efficiency.

[0008] Preferably, the guide rail is a magnetic drive annular guide rail, and the first and second conveyor lines are located on both sides of the magnetic drive annular guide rail.

[0009] By adopting the above technical solution, the magnetic drive ring rail has the effects of strong driving force, fast traction, good positioning accuracy, and no slide separation. By placing the first conveyor line and the second conveyor line on both sides of the magnetic drive ring rail, the battery on one side of the magnetic drive ring rail can be transferred to the other side of the magnetic drive ring rail.

[0010] Preferably, the magnetic drive annular guide rail includes two parallel straight segments, with the first segment located on one of the straight segments and the second segment located on the other straight segment.

[0011] By adopting the above technical solution, both the first and second sections are set on straight sections, which can better coordinate with the first and second conveyor lines dynamically.

[0012] Preferably, the guide rail is a magnetic drive annular guide rail, which includes a linear moving section. The first section and the second section are both disposed on the linear moving section, and the first conveyor line and the second conveyor line are both located on the side of the magnetic drive annular guide rail where the linear moving section is disposed.

[0013] By adopting the above technical solution, when the distance between the first conveyor line and the second conveyor line is relatively small and there is not enough space to set up the transfer conveyor line, the battery can be transferred from the first conveyor line to the second conveyor line by setting both the first section and the second section on the straight moving section.

[0014] Preferably, the battery clamping device is configured as a plurality of devices.

[0015] By adopting the above technical solutions, multiple battery clamping devices can pick up and put down batteries more efficiently.

[0016] Preferably, the battery clamping device moves at the same speed on the guide rail.

[0017] By adopting the above technical solution, since the battery clamping device moves at the same speed on the guide rail, the fault tolerance rate for picking up and placing batteries is relatively low.

[0018] Preferably, the magnetic drive annular guide rail has a rapid movement section between the first section and the second section, and the battery clamping device moves at a faster speed in the rapid movement section than it moves in the first / second section.

[0019] By adopting the above technical solution, since the magnetic drive ring rail is provided with a fast moving section between the first section and the second section, the time for the battery clamping device to move to the first section / second section is saved, thereby enabling more efficient battery handling.

[0020] Preferably, the magnetic drive annular guide rail is further provided with a preparation section, which is located before the first section / second section. The moving speed of the battery clamping device in the preparation section includes a waiting state speed and a non-waiting state speed. The waiting state speed is less than the moving speed in the first section / second section, and the non-waiting state speed is greater than the moving speed in the first section / second section.

[0021] By adopting the above technical solution, when the battery gripping device moves to the preparation section, the battery gripping device moves at a relatively low waiting speed to prepare for picking up or putting down the battery. When the fixture on the first conveyor line / second conveyor line reaches the appropriate position, it can switch to a non-waiting speed to quickly pick up or put down the battery.

[0022] Secondly, this application also proposes a dynamic transfer method for a lithium battery conveying line, wherein the lithium battery conveying line includes a first conveying line, a transfer conveying line, and a second conveying line, a first processing section is formed between the first conveying line and the transfer conveying line, and a second processing section is formed between the transfer conveying line and the second conveying line. A battery clamping device for clamping workpieces is movably disposed on the transfer conveying line. The dynamic transfer method includes the following steps:

[0023] The first conveyor line transports the workpiece at a first processing speed within the first processing section;

[0024] The second conveyor line transports the workpiece at a second processing speed within the second processing section;

[0025] The transfer conveyor line clamps and removes the workpiece from the first conveyor line at a first processing speed in the first processing section, and places the workpiece on the second conveyor line at a second processing speed in the second processing section.

[0026] By adopting the above technical solution, battery transfer can be achieved without manual transfer, thereby improving battery production efficiency.

[0027] Preferably, the transfer conveyor line is further provided with a rapid movement section and a preparation section between the first processing section and the second processing section. The transfer conveyor line has a third processing speed on the rapid movement section, and a fourth or fifth processing speed on the preparation section. The third processing speed is greater than the first and second processing speeds, the fourth processing speed is less than the first and second processing speeds, and the fifth processing speed is greater than the first and second processing speeds. The dynamic transfer method includes the following steps:

[0028] The transfer conveyor line uses a battery gripping device to grip / place the workpiece at a first processing speed / second processing speed within the first processing section / second processing section, and then moves the battery gripping device into the fast moving section.

[0029] The battery gripping device moves to the preparation section at a third processing speed within the rapid movement section;

[0030] The battery gripping device moves at a fourth processing speed within the preparation section and waits for the fixture for placing the workpiece on the first conveyor line / second conveyor line to move into the first processing section / first processing section.

[0031] When the fixture moves to the first processing section / first processing section, the preparation section switches the speed to the fifth processing speed, and the battery clamping device moves to the second processing section / first processing section at the fifth processing speed.

[0032] By adopting the above technical solution, when the battery gripping device moves to the preparation section, it moves at a relatively small fourth processing speed to prepare for picking up or unloading the battery. When the fixture on the first / second conveyor line reaches the appropriate position, it can switch to the fifth processing speed to quickly pick up or unload the battery, thereby further improving the battery production efficiency.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. When the battery moves to the picking section via the first conveyor line, the battery clamping device on the transfer conveyor line can clamp the battery. Then the transfer conveyor line carries the battery along the guide rail. When the transfer conveyor line moves to the second section, the transfer conveyor line places the battery on the unloading section of the second conveyor line with the same speed, thereby realizing the transfer of the battery without the need for manual transfer, thus improving the battery production efficiency.

[0035] 2. By setting the guide rail as a magnetic drive ring guide rail, and with the first and second conveyor lines located on both sides of the magnetic drive ring guide rail respectively, it is possible to transfer the battery from one side of the magnetic drive ring guide rail to the other side of the magnetic drive ring guide rail.

[0036] 3. When the battery gripping device moves to the preparation section, it moves at a low waiting speed to prepare for picking up or putting down the battery. When the fixture on the first / second conveyor line reaches the appropriate position, it can switch to a non-waiting speed to quickly pick up or put down the battery. Attached Figure Description

[0037] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of this application. Other embodiments and many anticipated advantages of these embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0038] Figure 1 This is a plan view of a dynamic transfer system in one embodiment of this application.

[0039] Figure 2 This is a top view of a transfer conveyor line in one embodiment of this application.

[0040] Figure 3 This is a planar schematic diagram of a magnetic drive annular guide rail in one embodiment of this application.

[0041] Figure 4 This is a structural diagram of a magnetic drive ring rail in one embodiment of this application.

[0042] Figure 5 This is a structural diagram illustrating the battery clamping device in one embodiment of this application.

[0043] Figure 6 This is a planar schematic diagram of a magnetic drive annular guide rail in one embodiment of this application.

[0044] Figure 7 This is a plan view of a dynamic transfer system in one embodiment of this application.

[0045] Explanation of reference numerals in the attached drawings: 1. First conveyor line; 2. Second conveyor line; 3. Transfer conveyor line; 4. Battery gripping device; 5. Magnetic drive ring guide rail; 6. First section; 7. Second section; 8. Straight section; 9. Arc section; 10. Third section; 11. Power gripper; 13. Preparation section; 14. Rapid movement section; 15. Material picking section; 16. Material unloading section. Detailed Implementation

[0046] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] Reference Figure 1 The present application discloses a dynamic transfer system, including a first conveyor line 1, a second conveyor line 2 and a transfer conveyor line 3.

[0049] In one specific embodiment, the first conveyor line 1 is a casing pressing conveyor line, which mainly performs the steps of fitting the casing onto the outside of the battery cell and pressing it tightly. The first conveyor line 1 is provided with a magnetically driven first annular track, and a fixture for placing the battery is movably mounted on the first annular track of the first conveyor line 1. A material picking section 15 is provided on the first annular track.

[0050] In one specific embodiment, the second conveyor line 2 is a welding conveyor line, which mainly performs the welding steps of the outer shell and the top cover. The second conveyor line 2 is also equipped with a magnetically driven second annular track, on which a fixture for placing the battery is also movably mounted. A feeding section 16 is provided on the second annular track.

[0051] Reference Figures 1 to 3 In one specific embodiment, the transfer conveyor line 3 includes a guide rail and a battery gripping device 4 movably mounted on the guide rail. In this embodiment, the guide rail is a magnetically driven annular guide rail 5, and a first section 6 with the same speed as the picking section 15 is arranged side-by-side on the side of the guide rail near the picking section 15, and a second section 7 with the same speed as the discharging section 16 is arranged side-by-side on the side of the guide rail near the discharging section 16. That is, the speed of the battery gripping device 4 on the first section 6 is the same as the conveying speed of the first conveyor line 1, and the speed of the battery gripping device 4 on the second section 7 is the same as the conveying speed of the second conveyor line 2.

[0052] In one specific embodiment, the first conveyor line 1 and the second conveyor line 2 are located on both sides of the magnetic drive annular guide rail 5, respectively. The magnetic drive annular guide rail 5 has the effects of strong driving force, fast traction, good positioning accuracy, and no slide disengagement, thereby efficiently transferring the battery from one side of the magnetic drive annular guide rail 5 to the other side of the magnetic drive annular guide rail 5.

[0053] Reference Figure 3 In one specific embodiment, the magnetic drive annular guide rail 5 includes two straight segments 8 and two arc-shaped segments 9. The two straight segments 8 are arranged side by side, and the two arc-shaped segments 9 are located at opposite ends of the length of the straight segments 8. Each arc-shaped segment 9 is connected at one end to one of the straight segments 8 and at the other end to the other straight segment 8. In this embodiment, the first segment 6 is located on one of the straight segments 8, and the second segment 7 is located on the other straight segment 8, with both the first segment 6 and the second segment 7 located in the middle of the straight segment 8. By placing the first segment 6 and the second segment 7 on the straight segments 8, better alignment and cooperation with the first conveyor line 1 and the second conveyor line 2 can be achieved.

[0054] Reference Figure 4 In one specific embodiment, the magnetic drive ring rail 5 has a first section 6 and a third section 10 with different heights. Specifically, the height of the first section 6 is lower than the height of the third section 10, so that the battery clamping device 4 can be raised and lowered when it moves on the rail, thereby facilitating the battery clamping device 4 to clamp the battery.

[0055] In one specific embodiment, the magnetic drive ring rail 5 can be one rail or two rails. In the case of two rails, one rail can be set as a magnetic drive, and the other rail can be without a magnetic drive and have a first segment 6 and a third segment 10 with different heights. A sliding seat is set on the magnetic drive rail to push the battery clamping device 4 to move between the first segment 6 and the third segment 10 of the other rail.

[0056] In another specific embodiment, all the loops of the magnetic drive annular guide rail 5 can be arranged in the same horizontal plane. In this embodiment, the battery clamping device 4 is controlled to move up and down by a linear drive device (not shown in the figure). Specifically, a sliding seat is movably arranged on the magnetic drive annular guide rail, and the linear drive device is mounted on the sliding seat. The linear drive device is drivenly connected to the battery clamping device 4. In this embodiment, the linear drive device is a cylinder. In other embodiments, the linear drive device can also be an electric cylinder or a lead screw assembly, etc. This embodiment does not require setting the magnetic drive annular guide rail 5 into a first segment and a third segment to achieve battery loading and unloading.

[0057] Reference Figure 5 In one specific embodiment, the gripper includes two sets of powered grippers 11 for gripping and placing the battery. In this embodiment, the powered grippers 11 are pneumatic grippers; in other embodiments, the powered grippers 11 may also be electric grippers or other types of gripping devices.

[0058] In one specific embodiment, multiple battery gripping devices 4 are configured, and the battery gripping devices 4 move at the same speed on the guide rail. Multiple battery gripping devices 4 can pick up and place batteries more efficiently. However, because the battery gripping devices 4 move at the same speed on the guide rail, the error tolerance for picking up and placing batteries is relatively low.

[0059] Reference Figure 6In one specific embodiment, multiple battery gripping devices 4 are configured, and a rapid movement section 14 is provided between the first section 6 and the second section 7 of the magnetic drive annular guide rail 5. The speed of the battery gripping device 4 in the rapid movement section 14 is greater than the speed of the first section 6 and the second section 7. Specifically, the magnetic force can be changed by altering the current in the coil within the magnetic drive annular guide rail 5, thereby changing the movement speed of the battery gripping device 4 on the magnetic drive annular guide rail 5. Because the rapid movement section 14 is provided between the first section 6 and the second section 7 of the magnetic drive annular guide rail 5, the time required for the battery gripping device 4 to move to the first section 6 and the second section 7 is saved, thus enabling more efficient battery gripping and placement.

[0060] In one specific embodiment, the magnetic drive annular guide rail 5 is further provided with a preparation section 13. The preparation section 13 is located before the first section 6 / second section 7 and between the first section 6 / second section 7 and the rapid traverse section 14. The moving speed of the battery gripping device 4 in the preparation section 13 includes a waiting state speed and a non-waiting state speed. The waiting state speed is less than the moving speed on the first section 6 / second section 7, and the non-waiting state speed is greater than the moving speed on the first section 6 / second section 7. When the battery gripping device 4 moves to the preparation section 13, it moves at a relatively small waiting state speed to prepare for picking up or placing the battery. When the fixture on the first conveyor line / second conveyor line reaches the designated position, it switches to the non-waiting state speed to quickly pick up or place the battery. Specifically, a photoelectric sensor or other detection device can be provided to detect whether the fixture on the first conveyor line / second conveyor line has reached the designated position.

[0061] Reference Figure 7 In another specific embodiment, the magnetic drive annular guide rail 5 of the transfer conveyor line 3 includes at least one linear moving segment. In this embodiment, the first segment 6 and the second segment 7 are both disposed on the same linear moving segment, and the first conveyor line 1 and the second conveyor line 2 are both located on the side of the magnetic drive annular guide rail 5 where the linear moving segment is disposed. This embodiment is suitable for situations where the distance between the first conveyor line 1 and the second conveyor line 2 is relatively small and there is not enough space to accommodate the transfer conveyor line 3. In other embodiments, the first segment 6 and the second segment 7 may not be disposed on the same linear moving segment; the transfer conveyor line 3 can be disposed according to the positional relationship between the first conveyor line 1 and the second conveyor line 2.

[0062] On the other hand, this application also discloses a dynamic transfer method for a lithium battery conveying line, wherein the lithium battery conveying line includes a first conveying line, a transfer conveying line, and a second conveying line, a first processing section is formed between the first conveying line and the transfer conveying line, a second processing section is formed between the transfer conveying line and the second conveying line, and a battery gripping device for gripping workpieces is movably disposed on the transfer conveying line. The dynamic transfer method includes the following steps:

[0063] The first conveyor line transports the workpiece at a first processing speed within the first processing section;

[0064] The second conveyor line transports the workpiece at a second processing speed within the second processing section;

[0065] The transfer conveyor picks up the workpiece in the first processing section at a first processing speed and removes it from the first conveyor line, and places the workpiece on the second conveyor line in the second processing section at a second processing speed.

[0066] In one specific embodiment, the transfer conveyor line is further provided with a rapid movement section and a preparation section between the first processing section and the second processing section. The transfer conveyor line has a third processing speed on the rapid movement section and a fourth or fifth processing speed on the preparation section. The third processing speed is greater than the first and second processing speeds, the fourth processing speed is less than the first and second processing speeds, and the fifth processing speed is greater than the first and second processing speeds. The dynamic transfer method includes the following steps:

[0067] The transfer conveyor uses a battery gripping device to grip / place workpieces at a first processing speed / second processing speed in the first processing section / second processing section, and then moves the battery gripping device into the fast moving section.

[0068] The battery gripping device moves to the preparation section at a third processing speed within the rapid traverse section;

[0069] The battery gripping device moves at a fourth processing speed in the preparation section and waits for the fixture for placing the workpiece on the first conveyor line / second conveyor line to move into the first processing section / first processing section.

[0070] When the fixture moves to the first processing section / first processing section, the preparation section switches the speed to the fifth processing speed, and the battery gripping device moves to the second processing section / first processing section at the fifth processing speed.

[0071] In this embodiment, the transfer conveyor first moves the battery gripping device quickly to the preparation section via a rapid traverse section. Then, the battery gripping device moves on the preparation section at a relatively low waiting speed to prepare for picking up or unloading the battery. When the fixture for placing the workpiece on the first / second conveyor line reaches the appropriate position, it can switch to a non-waiting speed. Then, the battery gripping device moves to the second / first processing section at a fifth processing speed to quickly pick up or unload the battery, thereby further improving the battery production efficiency.

[0072] The specific embodiments of this application have been described above, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0073] In the description of this application, it should be understood that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that combinations of these measures cannot be used for improvement. Any reference signs in the claims should not be construed as limiting the scope.

Claims

1. A dynamic transfer system, characterized in that: It includes a first conveyor line (1), a second conveyor line (2) and a transfer conveyor line (3). The transfer conveyor line (3) is provided with a guide rail and a battery clamping device (4) that is slidably set on the guide rail. The first conveyor line (1) is provided with a material taking section (15). The guide rail is provided with a first section (6) parallel to the material taking section (15) on the side close to the material taking section (15). The second conveyor line (2) is provided with a material discharging section (16). The guide rail is provided with a second section (7) parallel to the material discharging section (16) on the side close to the material discharging section (16). The speed of the battery gripping device (4) on the first segment (6) is the same as the conveying speed of the first conveyor line (1), and the speed of the battery gripping device (4) on the second segment (7) is the same as the conveying speed of the second conveyor line (2); the battery gripping device (4) includes a power gripper (11) for gripping and placing batteries. The guide rail is a magnetic drive ring guide rail (5), and the first conveyor line (1) and the second conveyor line (2) are located on both sides of the magnetic drive ring guide rail (5); the magnetic drive ring guide rail (5) is provided with a fast movement section (14) between the first section (6) and the second section (7), and the moving speed of the battery clamping device (4) in the fast movement section (14) is greater than the moving speed in the first section (6) / second section (7); the magnetic drive ring guide rail (5) is also provided with a preparation section (13), which is located before the first section (6) / second section (7), and the moving speed of the battery clamping device (4) in the preparation section (13) includes the waiting state speed and the non-waiting state speed, the waiting state speed is less than the moving speed in the first section (6) / second section (7), and the non-waiting state speed is greater than the moving speed in the first section (6) / second section (7); The dynamic transfer system employs a dynamic transfer method. A first processing section is formed between the first conveyor line and the transfer conveyor line, and a second processing section is formed between the transfer conveyor line and the second conveyor line. The transfer conveyor line also includes a rapid movement section and a preparation section between the first and second processing sections. The transfer conveyor line has a third processing speed on the rapid movement section, and a fourth or fifth processing speed on the preparation section. The third processing speed is greater than the first and second processing speeds, the fourth processing speed is less than the first and second processing speeds, and the fifth processing speed is greater than the first and second processing speeds. The method includes: The first conveyor line transports the workpiece at a first processing speed within the first processing section; The second conveyor line transports the workpiece at a second processing speed within the second processing section; The transfer conveyor line clamps the workpiece in the first processing section at a first processing speed and removes it from the first conveyor line, and places the workpiece on the second conveyor line in the second processing section at a second processing speed; The transfer conveyor line uses a battery gripping device to grip / place the workpiece at a first processing speed / second processing speed within the first processing section / second processing section, and then moves the battery gripping device into the fast moving section. The battery gripping device moves to the preparation section at a third processing speed within the rapid movement section; The battery gripping device moves at a fourth processing speed within the preparation section and waits for the fixture for placing the workpiece on the first conveyor line / second conveyor line to move into the second processing section / first processing section. When the fixture moves to the second processing section / first processing section, the preparation section switches the speed to the fifth processing speed, and the battery clamping device moves into the second processing section / first processing section at the fifth processing speed.

2. The dynamic transfer system according to claim 1, characterized in that: The magnetic drive ring rail (5) includes two parallel straight segments (8), with the first segment (6) located on one of the straight segments (8) and the second segment (7) located on the other straight segment (8).

3. The dynamic transfer system according to claim 1, characterized in that: The guide rail is a magnetic drive ring guide rail (5), which includes a linear movement section. The first section (6) and the second section (7) are both located on the linear movement section. The first conveyor line (1) and the second conveyor line (2) are both located on the side of the magnetic drive ring guide rail (5) where the linear movement section is located.

4. The dynamic transfer system according to claim 1, characterized in that: The battery clamping device (4) is configured as multiple.

5. A dynamic transfer system according to claim 4, characterized in that: The battery clamping device (4) moves at the same speed on the magnetic drive ring rail (5).

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