Automatic battery cell housing device

Abstract

The utility model relates to a kind of battery cell automatic shell-entering device.The utility model discloses battery cell automatic shell-entering device, characterized by: including backplate, clamping mechanism, pressure lever mechanism, alignment mechanism, jig jacking mechanism and cell jacking mechanism, the clamping mechanism is used to clamp battery steel shell;The pressure lever mechanism is used to press down battery steel shell in clamping mechanism to make it enter alignment mechanism;The alignment mechanism is used for the alignment of steel shell and cell;The jig jacking mechanism is used to jacking cell jig to make it enter alignment mechanism;The cell jacking mechanism is used to jacking cell in cell jig into battery steel shell.The utility model discloses battery cell automatic shell-entering device, the accurate positioning alignment of battery steel shell and cell two by alignment mechanism is realized, so that cell can accurately enter in shell-entering process, avoid the scratch damage caused by deviation between cell and battery steel shell, effectively improve the yield of cell shell-entering production.

Description

Technical Field

[0001] This utility model relates to the field of battery cell production, and in particular to an automatic battery cell casing device. Background Technology

[0002] Cell insertion is a critical step in the assembly of cylindrical batteries, a core process affecting battery performance and yield. Its quality directly impacts battery performance, safety, and lifespan. Poor cell insertion can lead to inadequate sealing between the cell and the battery casing, resulting in battery leakage. Leakage not only causes insulation failure in the battery pack but can also trigger external short circuits, and in severe cases, even battery fire, posing a threat to user safety. Furthermore, poor cell insertion can affect battery capacity and cycle performance. If a cell is damaged during insertion, its internal structure may change, affecting capacity and cycle performance. This manifests as capacity decay and poor cycle performance. A reliable automated cell insertion device is crucial for improving battery performance, safety, and reliability, and is an indispensable part of battery manufacturing. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide an automatic battery cell insertion device.

[0004] An automatic battery cell loading device, characterized in that it includes a back plate, a clamping mechanism, a pressure rod mechanism, an alignment mechanism, a fixture lifting mechanism, and a cell lifting mechanism.

[0005] The clamping mechanism is installed on the back plate and includes a steel shell cup holder. The steel shell cup holder is provided with a slot that has the same shape as the battery steel shell and is used to clamp the battery steel shell.

[0006] The pressure bar mechanism is mounted on the back plate and located above the clamping mechanism. It includes a pressure bar head that is slidably mounted on the back plate for pressing down the battery steel shell in the clamping mechanism to make it enter the alignment mechanism.

[0007] The alignment mechanism is mounted on the back plate and located below the clamping mechanism. It includes a steel shell positioning block and a fixture positioning block. The steel shell positioning block has a steel shell positioning hole with a diameter equivalent to the outer diameter of the battery steel shell. The fixture positioning block is located below the steel shell positioning block and has a fixture positioning hole with a diameter equivalent to the outer diameter of the fixture. The fixture positioning hole and the steel shell positioning hole are coaxial.

[0008] The fixture lifting mechanism is mounted on the back plate and located below the alignment mechanism. It includes a fixture cup holder, which is movably mounted on the back plate for lifting the battery cell fixture so that it enters the alignment mechanism.

[0009] The cell lifting mechanism is mounted on the back plate and located below the jig lifting mechanism. It includes a cell lifting rod, which is slidably mounted on the back plate for lifting the cell in the cell jig into the battery steel casing.

[0010] The automatic battery cell insertion device of this utility model achieves precise positioning and alignment of the battery steel shell and the battery cell through an alignment mechanism, enabling the battery cell to enter accurately during the insertion process and avoiding scratch damage caused by deviation between the battery cell and the battery steel shell, thus effectively improving the yield rate of battery cell insertion production.

[0011] Furthermore, the clamping mechanism also includes a battery cell baffle, which is installed at one end of the steel shell cup holder near the alignment mechanism, and is used to block the steel shell entrance after the battery cell enters the steel shell.

[0012] Furthermore, the steel shell positioning block is divided into a fixed positioning block and a floating positioning block. The fixed positioning block has a through hole with a diameter equivalent to that of the battery cell. The floating positioning block is movably mounted on the fixed positioning block and has a semi-circular slot at one end away from the back plate, and a spring fixed to the back plate at the other end. The fixed positioning block and the floating positioning block together form the steel shell positioning hole.

[0013] Furthermore, it also includes a flipping mechanism, which comprises a fixed base, a circular rack, a flipping spring, a gear shaft, and a cam follower. The fixed base is mounted on the other end of the back plate and located on the back of the clamping mechanism. The circular rack is sleeved in the fixed base, and the flipping spring is sleeved on the circular rack. One end of the cam shaft is fixedly connected to the clamping mechanism, and the other end is fixedly connected to the circular rack. The cam follower is fixedly connected to the circular rack.

[0014] Furthermore, the pressure rod mechanism also includes a pressure rod slide rail, a pressure rod slider, and a pressure rod drive assembly. The pressure rod slide rail is fixed to the back plate, the pressure rod slider is slidably mounted on the pressure rod slide rail, the pressure rod head is mounted on one end of the pressure rod slider near the clamping mechanism, and the pressure rod drive assembly is drivenly connected to the pressure rod slider to drive the pressure rod slider to slide along the pressure rod slide rail.

[0015] Furthermore, the lever drive assembly includes a lever spring and a lever cam follower. One end of the lever spring is fixedly connected to the lever slider, and the other end is fixedly connected to the back plate. The lever cam follower is fixedly connected to the lever head.

[0016] Furthermore, the fixture lifting mechanism also includes a fixture lifting slide rail, a fixture lifting slider, and a fixture lifting drive assembly. The fixture lifting slide rail is fixed to the back plate, the fixture lifting slider is slidably mounted on the lifting slide rail, the fixture cup holder is fixed to one end of the fixture lifting slider near the alignment mechanism, and has a slot with the same shape as the battery cell fixture. The fixture lifting drive assembly is drivenly connected to the fixture lifting slider to drive the fixture lifting slider to slide along the fixture lifting slide rail.

[0017] Furthermore, the jig lifting drive assembly includes a jig lifting spring and a jig lifting cam follower. One end of the jig lifting spring is fixedly connected to the jig lifting slider, and the other end is fixedly connected to the back plate. The jig lifting cam follower is fixedly connected to the jig lifting slider.

[0018] Furthermore, the cell lifting mechanism also includes a cell lifting slide rail, a cell lifting slider, and a cell lifting drive. The cell lifting slider is fixed to the back plate and slidably mounted on the cell lifting slide rail. The cell lifting drive is drivenly connected to the cell lifting slider and is used to drive the cell lifting slider to slide along the cell lifting slide rail.

[0019] Furthermore, the cell lifting drive includes a cell lifting cam follower, which is fixedly connected to the cell lifting slider.

[0020] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0021] Figure 1 Schematic diagram of an automatic battery cell casing installation device;

[0022] Figure 2 Schematic diagram of the clamping mechanism and the flipping mechanism;

[0023] Figure 3 This is a schematic diagram of the pressure bar mechanism;

[0024] Figure 4 This is a schematic diagram of the alignment mechanism;

[0025] Figure 5 Schematic diagram of the jig lifting mechanism;

[0026] Figure 6 This is a schematic diagram of the battery cell lifting mechanism. Detailed Implementation

[0027] Please see Figure 1An automatic battery cell insertion device includes a back plate 10, a clamping mechanism 20, a pressure rod mechanism 30, an alignment mechanism 40, a fixture lifting mechanism 50, and a cell lifting mechanism 60. The back plate 10 is used to install and fix the various mechanisms. The clamping mechanism 20 is used to clamp the battery steel shell A. The pressure rod mechanism 30 is used to press down the battery steel shell A in the clamping mechanism 20 so that it enters the alignment mechanism 40. The alignment mechanism 40 is used to accurately position the battery steel shell A and the cell, so that the two are aligned to facilitate the accurate insertion of the cell into the battery steel shell. The fixture lifting mechanism 50 is used to lift the cell fixture B into the alignment mechanism 40. The cell lifting mechanism 60 is used to lift the cell in the cell fixture B into the battery steel shell A to complete the insertion.

[0028] Please see Figure 2 The clamping mechanism 20 is mounted on the back plate 10 and includes a steel cup holder 21. The steel cup holder 21 has a slot with the same shape as the battery steel shell A for clamping the battery steel shell A. In some embodiments, the clamping mechanism 20 further includes a cell baffle 22, which is mounted on one end of the steel cup holder 21 near the alignment mechanism 40. After the cell is inserted into the shell, the cell baffle 22 can automatically pop out, thereby blocking the opening of the battery steel shell A and preventing the cell from falling out after insertion.

[0029] Please see Figure 3 The pressure rod mechanism 30 is mounted on the back plate 10 and located above the clamping mechanism 20. It includes a pressure rod slide rail 31, a pressure rod slider 32, a pressure rod head 33, and a pressure rod drive assembly. The pressure rod slide rail 31 is fixed to the back plate 10 and located above the clamping mechanism 20. The pressure rod slider 32 is slidably mounted on the pressure rod slide rail 31 and moves away from or towards the clamping mechanism 20. The pressure rod head 33 is fixed to one end of the pressure rod slider 32 near the clamping mechanism 20 and is used to apply pressure to the battery steel shell A in the clamping mechanism 20, pushing it closer to the alignment mechanism 40. The pressure rod drive assembly is drivenly connected to the pressure rod slider 32 and is used to drive the pressure rod slider 32 to slide. The pressure rod drive assembly can be a device such as a motor that can perform external work.

[0030] In this embodiment, the lever drive assembly includes a lever cam follower 34 and a lever spring 35. The lever cam follower 34 is fixedly connected to the lever slider 32, and one end of the lever spring 35 is fixedly connected to the lever slider 32, while the other end is fixedly connected to the back plate 10. During operation, the lever cam follower 34, the lever spring 35, and the external cam cooperate to realize the rising and falling of the lever slider 32. The rotation of the external cam pushes the lever cam follower 34 to rise, thereby driving the lever slider 32 and the lever head 33 to rise; when the external cam is clear, the lever spring 35 contracts, driving the lever slider 32 and the lever head 33 to fall.

[0031] Please see Figure 4 The alignment mechanism 40 is mounted on the back plate 10 and located below the clamping mechanism 20. It includes a steel shell positioning block 41 and a fixture positioning block 42. The steel shell positioning block 41 has a steel shell positioning hole with a diameter equivalent to that of the battery steel shell A, used for positioning the battery steel shell. The fixture positioning block 42 is located below the steel shell positioning block 41 and has a cell positioning hole with a diameter equivalent to that of the fixture. The fixture positioning hole and the steel shell positioning hole are coaxial, used for positioning the cell to be inserted into the shell, so that the cell is accurately aligned with the battery steel shell and avoids the cell rubbing against the battery steel shell during insertion due to misalignment.

[0032] In some embodiments, the steel shell positioning block 41 is divided into a fixed positioning block 41a and a floating positioning block 41b. The fixed positioning block 41a has a through hole with a diameter equivalent to that of the battery cell. The floating positioning block 41b is movably mounted on the fixed positioning block 41a, and has a semi-circular slot at one end away from the back plate 10, while the other end is provided with a spring fixed to the back plate 10. The fixed positioning block 41a and the floating positioning block 41b together form a steel shell positioning hole. The size of the steel shell positioning hole can be adjusted by adjusting the position of the floating positioning block 41b, thereby adapting to battery steel shells of different outer diameters.

[0033] In some other embodiments, the alignment mechanism 40 further includes a cup holder positioning frame 43, which is disposed below the fixture positioning block 42 and has a slot that is similar in shape to the battery cell fixture B, for assisting in the positioning of the battery cell fixture B.

[0034] Please see Figure 5 The fixture lifting mechanism 50 is mounted on the back plate 10 and located below the alignment mechanism 40. It includes a fixture lifting slide rail 51, a fixture lifting slider 52, a fixture cup holder 53, and a fixture lifting drive assembly. The fixture lifting slide rail 51 is fixed to the back plate 10 and located below the alignment mechanism 40. The fixture lifting slider 52 is slidably mounted on the fixture lifting slide rail 51, moving away from or closer to the alignment mechanism 40. The fixture cup holder 53 is fixed to one end of the fixture lifting slider 52 near the alignment mechanism 40 and has a slot with an appearance similar to that of the battery cell fixture B for placing the battery cell fixture B. The fixture lifting drive assembly is driven by the fixture lifting slider 52 and drives the fixture lifting slider 52 to slide. The fixture lifting drive assembly can be a motor or other device capable of external work.

[0035] In this embodiment, the jig lifting drive assembly includes a jig lifting cam follower 54 and a jig lifting spring 55. The jig lifting cam follower 54 is fixedly connected to the jig lifting slider 52, and one end of the jig lifting spring 55 is fixedly connected to the jig lifting slider 52, while the other end is fixedly connected to the back plate 10. During operation, the jig lifting cam follower 54, the jig lifting spring 55, and the external cam cooperate to realize the rising and falling of the jig lifting slider 52. The rotation of the external cam pushes the jig lifting cam follower 54 to rise, while the jig lifting spring 55 contracts, thereby driving the jig lifting slider 52 and the jig cup holder 53 to rise. When the external cam is clear, the jig lifting slider 52 and the jig cup holder 53 naturally fall under their own gravity.

[0036] Please see Figure 6 The cell lifting mechanism 60 is mounted on the back plate 10 and located below the fixture lifting mechanism 50. It includes a cell lifting slide rail 61, a cell lifting slider 62, a cell push rod 63, and a cell lifting drive assembly. The cell lifting slide rail 61 is fixed to the back plate 10 and located below the fixture lifting mechanism 50. The cell lifting slider 62 is slidably mounted on the cell lifting slide rail 61, moving away from or towards the fixture lifting mechanism 50. The cell push rod 63 is fixed to one end of the cell lifting slider 62 near the fixture lifting mechanism 50 and is positioned opposite the cell fixture B, applying force to the cell in the cell fixture B to lift it into the battery steel casing A. The cell lifting drive assembly is driven by the cell lifting slider 62 and drives the cell lifting slider 62 to slide. The cell lifting drive assembly can be a motor or other device capable of performing external work.

[0037] In this embodiment, the cell lifting drive assembly includes a cell lifting cam follower 64, which is fixedly connected to the cell lifting slider 62. During operation, the cell lifting cam follower 64 cooperates with an external cam to realize the rising and falling of the cell lifting slider 62. The rotation of the external cam pushes the cell lifting cam follower 64 to rise, thereby driving the cell lifting slider 62 and the cell push rod 63 to rise; when the external cam is clear, the cell lifting slider 62 and the cell push rod 63 naturally fall under their own gravity.

[0038] In some embodiments, the cell lifting mechanism further includes a pressure sensor 65, which is installed inside the cell lifting rod 63 and is used to detect the pressure applied by the cell lifting rod 63 to the cell. During the process of the cell lifting rod 63 lifting the cell into the battery casing A, if the cell and battery casing A are not precisely aligned and have a certain deviation, or if the cell diameter is larger than the inner diameter of the battery casing A, it will cause the cell and battery casing A to fit too tightly, generating excessive pressure. In this case, if the pressure sensor 65 detects excessive pressure, it will trigger an automatic shutdown to avoid damaging the cell.

[0039] In some embodiments, the automatic battery cell loading device of this application further includes a flipping mechanism 70, used to flip the clamping mechanism 20 so that the opening of the battery steel shell A placed therein can face any direction, which is beneficial for compatibility with battery steel shells A coming from different directions, and at the same time facilitates flipping the loaded battery steel shell A so that the opening faces upward, preventing the loaded battery cell from falling out. The flipping mechanism 70 is installed at the other end of the back plate 10 and is located on the back of the clamping mechanism 20, and includes a fixing seat 71, a circular rack 72, a gear shaft 73, and a cam follower 74. The fixing seat 71 is installed at the other end of the back plate 10 and is located on the back of the clamping mechanism 20; the circular rack 72 is sleeved in the fixing seat 71, one end of the gear shaft 73 passes through the back plate 10 and is fixedly connected to the steel shell cup holder 21, and the other end is drivenly connected to the circular rack 72; the cam follower 74 is fixedly connected to the circular rack 72. Under the action of the external cam, the cam follower 74 drives the circular rack 72 to move up and down, and drives the gear shaft 73 to rotate, thereby causing the steel shell cup holder 21 connected to the gear shaft 73 to rotate together, thus realizing the flipping of the battery steel shell A. Preferably, the flipping mechanism 70 further includes a flipping spring 75, which is sleeved on the circular rack 72 and applies a force to the circular rack 72 during the flipping process, so that it can also be subjected to force to complete the flipping even when the external cam is off-center.

[0040] During operation, the external device places the battery casing A into the casing cup holder 21, and the flipping mechanism 70 flips the clamping mechanism 20 so that the opening of the battery casing A faces downwards. Simultaneously, the external device places the cell fixture B into the fixture cup holder 53. Then, the pressure rod mechanism 30 presses down, causing the battery casing A to move downwards and insert into the casing positioning hole of the alignment mechanism 40. At the same time, the fixture lifting mechanism 50 moves the cell fixture B upwards and inserts it into the fixture positioning hole of the alignment mechanism 40, thus completing the alignment of the battery casing A and the cell. Next, the cell lifting mechanism 60 rises, applying force to the cell in the cell fixture B, lifting it into the battery casing A. Finally, when the cell is fully inserted into the casing, the cell baffle 22 automatically pops out to block the entrance of the battery casing A, and the flipping mechanism 70 flips the casing so that the entrance of the battery casing A faces upwards, and it is then transported to the next process by other devices.

[0041] Compared to existing technologies, this utility model's automatic battery cell loading device precisely aligns the battery casing and the battery cell using an alignment mechanism, effectively improving the accuracy of cell loading. It also incorporates a pressure sensor for pressure detection, preventing damage to the battery cell due to misalignment with the casing, thus significantly improving product yield. Furthermore, this utility model includes a flipping mechanism to flip the battery casing, accommodating casings with different incoming orientations and adjusting the orientation of the casing after loading, facilitating subsequent processing and effectively improving production efficiency.

[0042] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. An automatic battery cell insertion device, characterized in that: This includes a backplate, clamping mechanism, pressure bar mechanism, alignment mechanism, jig lifting mechanism, and cell lifting mechanism. The clamping mechanism is installed on the back plate and includes a steel shell cup holder. The steel shell cup holder is provided with a slot that has the same shape as the battery steel shell and is used to clamp the battery steel shell. The pressure bar mechanism is mounted on the back plate and located above the clamping mechanism. It includes a pressure bar head that is slidably mounted on the back plate for pressing down the battery steel shell in the clamping mechanism to make it enter the alignment mechanism. The alignment mechanism is mounted on the back plate and located below the clamping mechanism. It includes a steel shell positioning block and a fixture positioning block. The steel shell positioning block has a steel shell positioning hole with a diameter equivalent to the outer diameter of the battery steel shell. The fixture positioning block is located below the steel shell positioning block and has a fixture positioning hole with a diameter equivalent to the outer diameter of the fixture. The fixture positioning hole and the steel shell positioning hole are coaxial. The fixture lifting mechanism is mounted on the back plate and located below the alignment mechanism. It includes a fixture cup holder, which is movably mounted on the back plate for lifting the battery cell fixture so that it enters the alignment mechanism. The cell lifting mechanism is mounted on the back plate and located below the jig lifting mechanism. It includes a cell lifting rod, which is slidably mounted on the back plate for lifting the cell in the cell jig into the battery steel casing.

2. The automatic battery cell casing device according to claim 1, characterized in that: The clamping mechanism also includes a battery cell baffle, which is installed at one end of the steel shell cup holder near the alignment mechanism and is used to block the steel shell entrance after the battery cell enters the steel shell.

3. The automatic battery cell casing device according to claim 1, characterized in that: The steel shell positioning block is divided into a fixed positioning block and a floating positioning block. The fixed positioning block has a through hole with a diameter equivalent to that of the battery cell. The floating positioning block is movably mounted on the fixed positioning block and has a semi-circular slot at one end away from the back plate, and a spring fixed to the back plate at the other end. The fixed positioning block and the floating positioning block together form the steel shell positioning hole.

4. The automatic battery cell casing device according to any one of claims 1-3, characterized in that: It also includes a flipping mechanism, which comprises a fixed base, a circular rack, a flipping spring, a gear shaft, and a cam follower. The fixed base is mounted on the other end of the back plate and located on the back of the clamping mechanism. The circular rack is sleeved in the fixed base, and the flipping spring is sleeved on the circular rack. One end of the gear shaft is fixedly connected to the clamping mechanism, and the other end is fixedly connected to the circular rack. The cam follower is fixedly connected to the circular rack.

5. The automatic battery cell casing device according to claim 4, characterized in that: The pressure bar mechanism further includes a pressure bar slide rail, a pressure bar slider, and a pressure bar drive assembly. The pressure bar slide rail is fixed to the back plate, the pressure bar slider is slidably mounted on the pressure bar slide rail, the pressure bar head is mounted on one end of the pressure bar slider near the clamping mechanism, and the pressure bar drive assembly is drivenly connected to the pressure bar slider to drive the pressure bar slider to slide along the pressure bar slide rail.

6. The automatic battery cell casing device according to claim 5, characterized in that: The lever drive assembly includes a lever spring and a lever cam follower. One end of the lever spring is fixedly connected to the lever slider, and the other end is fixedly connected to the back plate. The lever cam follower is fixedly connected to the lever head.

7. The automatic battery cell casing device according to claim 4, characterized in that: The fixture lifting mechanism further includes a fixture lifting slide rail, a fixture lifting slider, and a fixture lifting drive assembly. The fixture lifting slide rail is fixed to the back plate, the fixture lifting slider is slidably mounted on the lifting slide rail, the fixture cup holder is fixed to one end of the fixture lifting slider near the alignment mechanism, and has a slot with the same shape as the battery cell fixture. The fixture lifting drive assembly is drivenly connected to the fixture lifting slider and is used to drive the fixture lifting slider to slide along the fixture lifting slide rail.

8. The automatic battery cell casing device according to claim 7, characterized in that: The jig lifting drive assembly includes a jig lifting spring and a jig lifting cam follower. One end of the jig lifting spring is fixedly connected to the jig lifting slider, and the other end is fixedly connected to the back plate. The jig lifting cam follower is fixedly connected to the jig lifting slider.

9. The automatic battery cell casing device according to claim 4, characterized in that: The cell lifting mechanism further includes a cell lifting slide rail, a cell lifting slider, and a cell lifting drive. The cell lifting slider is fixed to the back plate and slidably mounted on the cell lifting slide rail. The cell lifting drive is drivenly connected to the cell lifting slider and is used to drive the cell lifting slider to slide along the cell lifting slide rail.

10. The automatic battery cell casing device according to claim 9, characterized in that: The cell lifting drive includes a cell lifting cam follower, which is fixed to the cell lifting slider.

Images