A dual station cell stack assembly

Abstract

The application provides a double-station electric core stacking assembly, which comprises a vertical plate, at least one positioning carrier fixed to the bottom of the vertical plate, at least one correction clamping device slidingly connected to the vertical plate, a positioning pressing frame, a first clamping assembly connected to the positioning pressing frame, the first clamping assembly extending to the lower sides of the positioning pressing frame, a second clamping assembly arranged between the first clamping assemblies, and a rotating pressing cylinder and a pushing cylinder. The assembly positions a loading plate through the positioning carrier and the loading plate locking assembly, and then positions a square electric core sent by a previous mechanical hand through the correction clamping device, so that the first clamping assembly and the second clamping assembly ensure that the position of the electric core can be centered after the handover, and the electric core is gradually stacked up and down, the electric cores are aligned with each other, and the whole assembly structure is compact.

Description

Technical Field

[0001] This invention relates to the field of automated battery assembly equipment, and more particularly to dual-station cell stacking assemblies. Background Technology

[0002] The battery pack for new energy vehicles is one of the core components of electric vehicles, responsible for storing and providing electrical energy. At present, it mainly includes cylindrical cells and prismatic cells. The assembly of prismatic cells is carried out through automated production lines. An adhesive layer is attached to the surface of the prismatic cells through a previous process, and then the cells are pressed together. To achieve full automation of the above process, the technical problem to be solved is to ensure that the cells are aligned with each other when the prismatic cells are transported and stacked, and that the stacked position of the cells remains stable after being transferred between different robotic arms, so as to ensure that the final stacked and bonded cells meet the product requirements. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes a dual-station cell stacking assembly, comprising:

[0004] Elevating board,

[0005] At least one positioning frame is fixed to the bottom of the upright plate to support the tray;

[0006] A tray locking assembly is located at the lower part of the positioning frame and slidably connected to the upright plate. The tray locking assembly is used to press the tray tightly.

[0007] At least one corrective clamping device is slidably connected to the upright plate, including a positioning and clamping frame. A first clamping assembly is connected to the positioning and clamping frame. The first clamping assembly extends to both sides of the lower part of the positioning and clamping frame. A second clamping assembly is provided between the first clamping assemblies. The second clamping assembly includes a rotary clamping cylinder and a push cylinder. The push cylinder extends perpendicularly to the upright plate and is connected to a push block. A pressure block is connected to the output end of the rotary clamping cylinder. The pressure block rotates an angle and approaches the push block, pressing the battery cell against the push block to adjust the distance between the battery cell and the upright plate.

[0008] The corrective clamping device is connected to a lifting component, which moves the corrective clamping device closer to or away from the positioning carrier.

[0009] Preferably, the lifting assembly is a sliding module, and an elongated plate is connected to the slider of the sliding module. The elongated plate is fixedly connected to the positioning and clamping frame.

[0010] Preferably, the upright plate is provided with a pressing and centering device, which includes a double-headed cylinder. The output ends of the double-headed cylinder are respectively connected to parallel elongated rods, which are located on both sides of the direction in which the straightening clamping device moves to the positioning carrier.

[0011] Preferably, a first slide rail is provided between the elongated rod and the upright plate.

[0012] Preferably, the tray locking assembly includes a connecting plate, on which a fine-tuning cylinder is connected. The fine-tuning cylinder pushes the connecting plate to move up and down. The connecting plate is provided with at least two sets of locking cylinders. The output end of the locking cylinder is connected to a first locking block and a second locking block. The first locking block passes through the positioning frame, and the end of the second locking block is provided with a locking part, which is located on one side of the tray.

[0013] Preferably, the upright plate of the positioning carrier and the straightening clamping device is provided with at least one limiting stop.

[0014] Preferably, the first clamping assembly includes a positioning plate slidably connected to the positioning and clamping frame, and two sets of claw bodies are slidably connected to the lower part of the positioning plate, with claw push cylinders respectively connected to the claw bodies.

[0015] Preferably, the claw body is provided with an anti-slip block, the anti-slip block passes through the claw body via a guide rod, one end of the guide rod passing through the claw body is provided with a top block, and an elastic element is provided between the guide rod and the top block.

[0016] Preferably, an adjusting cylinder is connected to the positioning plate, and the adjusting cylinder pushes the positioning plate closer to or away from the upright plate.

[0017] The dual-station battery cell stacking assembly proposed in this invention has the following beneficial effects: This assembly uses a positioning carrier and a carrier plate locking assembly to position the carrier plate. Then, a straightening clamping device is used to straighten the position of the square battery cell delivered by the preceding robotic arm. The first clamping assembly and the second clamping assembly ensure that the battery cell can still be aligned after handover and achieve step-by-step stacking, ensuring that the battery cells are aligned with each other. The entire assembly structure is compact. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0021] Figure 3This is a schematic diagram of the installation of the positioning carrier and the straightening clamping device of the present invention on the upright plate;

[0022] Figure 4 For the present invention Figure 3 Enlarged view of point A in the image;

[0023] Figure 5 This is a schematic diagram of the carrier plate locking assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the correction clamping device of the present invention;

[0025] Figure 7 This is a schematic diagram of the rear of the correction clamping device of the present invention;

[0026] Figure 8 This is an assembly diagram of the first clamping assembly and the second clamping device of the present invention;

[0027] Figure 9 This is a schematic diagram of the clamping and centering device of the present invention;

[0028] The components include: 1. Vertical plate; 2. Positioning frame; 3. Carrier tray; 4. Carrier tray locking assembly; 5. Connecting plate; 6. Fine-tuning cylinder; 7. Locking cylinder; 8. First clamping block; 9. Second clamping block; 10. Correction clamping device; 11. Positioning and pressing frame; 12. First clamping assembly; 13. Second clamping assembly; 14. Rotary pressing cylinder; 15. Pushing cylinder; 16. Pressing block; 17. Pushing block; 18. Positioning plate; 19. Claw body; 20. Claw pushing cylinder; 21. Anti-slip block; 22. Top block; 23. Elastic element; 24. Lifting assembly; 25. Centering device; 26. Double-headed cylinder; 27. Long rod; 28. First slide rail; 29. ​​Limiting stop bar; 30. Adjusting cylinder; 31. Battery cell. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] like Figure 1 , Figure 2 As shown, this invention proposes a dual-station cell stacking assembly, including...

[0031] The upright plate 1 is used to install all components. At least one positioning frame 2 is provided on the positioning plate 18. The positioning frame 2 is fixed to the bottom of the upright plate 1 and is used to support the carrier plate 3. The carrier plate 3 is used to place the battery cell 31. In this embodiment, the positioning frame 2 is set in two sets. Each set of positioning frame 2 is provided with a corresponding carrier plate 3 locking component. The carrier plate 3 locking component is located at the lower part of the positioning frame 2 and is slidably connected to the upright plate 1. The carrier plate 3 locking component is used to press the carrier plate 3. The positioning frame 2 is fixedly set. In this embodiment, it is a C-shaped plate. Of course, it can also be an ordinary flat plate. The surface of the positioning frame 2 is provided with an opening to facilitate the passage of the carrier plate 3 locking component. Specifically, the carrier plate 3 locking component includes a connecting plate 5. The connecting plate 5 is slidably connected to the upright plate 1. In this case, there are many places involving "sliding connection". The sliding connection in this case is set by a slide rail and engaged. The sliding connection mentioned below will not be described again.

[0032] like Figure 4 , 5 As shown, a fine-tuning cylinder 6 is connected to the connecting plate 5. The fine-tuning cylinder 6 is located on the back of the upright plate 1. The fine-tuning cylinder 6 pushes the connecting plate 5 to move up and down. The connecting plate 5 is provided with at least two sets of locking cylinders 7. The output end of the locking cylinder 7 is connected to a first locking block 8 and a second locking block 9. The first locking block 8 passes through the opening of the positioning carrier 2. The end of the second locking block 9 is provided with a locking part. The locking part is located on one side of the carrier plate 3. After the robot arm of the previous process grabs the carrier plate 3 and places it on the base plate, since the carrier plate 3 is an injection molded product with a grid structure at the bottom, the fine-tuning cylinder 6 pushes it upward to ensure that the first locking block 8 extends from the opening to the lower part of the carrier plate 3. Then, the locking cylinder 7 retracts, the first locking block 8 locks the bottom of the carrier plate 3, and the second locking block 9 presses the edge of the carrier plate 3 to achieve the positioning of the carrier plate 3.

[0033] Each positioning carrier 2 is also equipped with a corresponding correction clamping device 10. After the carrier 3 is positioned, square battery cells 31 can be placed on the carrier 3 and stacked. Specifically:

[0034] like Figure 6 As shown, the correction clamping device 10 is slidably connected to the upright plate 1 and includes a positioning and clamping frame 11. The positioning and clamping frame 11 is used to support the lower components and press the battery cell 31 tightly and bond it by pressing down. In this embodiment, the positioning and clamping frame 11 consists of two sets of frame-shaped structures that are perpendicular to the upright plate 1. The lower part of the frame-shaped structure is provided with a silicone pad to prevent damage to the battery cell 31 when pressing down.

[0035] like Figure 7 , 8As shown, a first clamping assembly 12 is connected to the positioning and clamping frame 11. The first clamping assembly 12 is slidably connected to the positioning plate 18. An adjusting cylinder 30 is connected to the positioning plate 18. The adjusting cylinder 30 pushes the positioning plate 18 closer to or away from the positioning and clamping frame 11. The first clamping assembly of the upright plate 1 extends to both sides of the lower part of the positioning and clamping frame 11. A second clamping assembly 13 is provided between the first clamping assemblies 12. The second clamping assembly 13 includes a rotating clamping cylinder 14 and a pushing cylinder 15. The pushing cylinder 15 extends perpendicularly to the upright plate 1 and is connected to a push block 17. The output end of the rotating clamping cylinder 14 is connected to a pressure block 16. The pressure block 16 rotates and moves closer to the push block 17, pressing the battery cell 31 against the push block 17 to adjust the distance between the battery cell 31 and the upright plate 1.

[0036] The first clamping assembly 12 is used to clamp the battery cell 31 delivered by the robotic arm, and the first clamping assembly 12 includes a positioning plate 18 slidably connected to the positioning and clamping frame 11. Two sets of claws 19 are slidably connected to the lower part of the positioning plate 18. Figure 8 As shown, gripper push cylinders 20 are connected to the gripper body 19. Anti-slip blocks 21 are provided on the gripper body 19. The anti-slip blocks 21 pass through the gripper body 19 via guide rods. A top block 22 is provided at one end of the guide rod passing through the gripper body 19. An elastic element 23 is provided between the guide rod and the top block 22. The gripper push cylinders 20 on both sides simultaneously clamp the gripper, ensuring consistent stroke on both sides and guaranteeing alignment of the battery cell 31 in the length direction. Subsequently, it is necessary to adjust the alignment of the battery cell 31 in the width direction (i.e., the shorter side direction in the figure). At this time, The second clamping assembly 13 is activated by the push cylinder 15, which adjusts the distance between the push block 17 and the pressure block 16. Simultaneously, the pressure block 16 is rotated 90° by the rotary clamping cylinder 14. Initially, to prevent interference with the delivered battery cell 31, it is horizontal. When the rotary clamping cylinder 14 operates, it rotates 90° while also having a certain stroke perpendicular to the push block 17, thus clamping the battery cell 31 along its short side. Combined with the push block 17, this limits the position of the battery cell 31 along its short side.

[0037] Subsequently, the lifting assembly 24 connected to the straightening clamping device 10 controls the straightening clamping device 10 to descend, and moves the battery cell 31 downward onto the carrier 3. During this process, in order to ensure that the battery cell 31 does not tilt, such as Figure 3As shown, at least one limiting strip 29 is provided on the upright plate 1 of the positioning carrier 2 and the straightening clamping device 10. In this embodiment, two strips are arranged in parallel. The limiting strip 29 has a certain thickness. When the battery cell 31 descends, it moves down along the limiting strip 29. In order to further ensure that each battery cell 31 is also aligned with the battery cells 31 stacked below, the first clamping component 12 is in a loose state during the downward movement. It is further limited by a separately provided pressing and centering device 25, such as... Figure 9 As shown, the clamping and centering device 25 includes a double-headed cylinder 26. The output ends of the double-headed cylinder 26 are respectively connected to parallel elongated rods 27. The elongated rods 27 are located on both sides of the direction in which the straightening clamping device 10 moves to the positioning carrier 2. The double-headed cylinder 26 drives the elongated rods 27 to move closer to each other. The elongated rods 27 press on the upper battery cell 31 and the lower battery cell 31 that has been stacked, ensuring that the upper battery cell 31 that has moved down is aligned with the lower one.

[0038] In addition, such as Figure 2 As shown, the lifting assembly 24 is a sliding module. A long plate is connected to the slider of the sliding module. The long plate is fixedly connected to the positioning and pressing frame 11. The sliding module is a purchased screw module mechanism that can control the positioning and pressing frame 11 to move up and down.

[0039] The working method of this case is as follows: After the robotic arm picks up the preceding battery cell 31 and places it onto the first clamping component 12, the first clamping component 12 clamps and centers it. Then, the second clamping component 13 clamps it and centers it in the short side direction. Then, the long rod 27 of the centering device 25 is clamped and pressed to further align the individual battery cell 31 with the lower stacked battery cells 31. Finally, the lifting component 24 drives the upper correction clamping device 10 to move down. Since the rotating cylinder of the second clamping component 13 rotates 90° and the clamped battery cell 31 is lower than the bottom of the positioning and pressing frame 11, the battery cell 31 is placed first, the rotating cylinder is reset, and then the positioning and pressing frame 11 continues to press down, which can press down the newly stacked battery cell 31. There is an adhesive layer attached between the battery cells beforehand. After pressing, the battery cells 31 are bonded together.

Claims

1. A dual-station cell stacking assembly, characterized in that, include Elevating board, At least one positioning frame is fixed to the bottom of the upright plate to support the tray; A tray locking assembly is located at the lower part of the positioning frame and slidably connected to the upright plate. The tray locking assembly is used to press the tray tightly. At least one corrective clamping device is slidably connected to the upright plate, including a positioning and clamping frame. A first clamping assembly is connected to the positioning and clamping frame. The first clamping assembly extends to both sides of the lower part of the positioning and clamping frame. A second clamping assembly is provided between the first clamping assemblies. The second clamping assembly includes a rotary clamping cylinder and a push cylinder. The push cylinder extends perpendicularly to the upright plate and is connected to a push block. A pressure block is connected to the output end of the rotary clamping cylinder. The pressure block rotates an angle and approaches the push block, pressing the battery cell against the push block to adjust the distance between the battery cell and the upright plate. The corrective clamping device is connected to a lifting component, which moves the corrective clamping device closer to or away from the positioning carrier. The upright plate is provided with at least one clamping and centering device, which includes a double-headed cylinder. The output ends of the double-headed cylinder are respectively connected to parallel elongated rods, which are located on both sides of the direction in which the straightening clamping device moves to the positioning carrier.

2. The dual-station cell stacking assembly according to claim 1, characterized in that, The lifting assembly is a sliding module, and an elongated plate is connected to the slider of the sliding module. The elongated plate is fixedly connected to the positioning and clamping frame.

3. The dual-station cell stacking assembly according to claim 1, characterized in that, A first slide rail is provided between the elongated rod and the upright plate.

4. The dual-station cell stacking assembly according to claim 1, characterized in that, The tray locking assembly includes a connecting plate, on which a fine-tuning cylinder is connected. The fine-tuning cylinder pushes the connecting plate to move up and down. The connecting plate is provided with at least two sets of locking cylinders. The output end of the locking cylinder is connected to a first locking block and a second locking block. The first locking block passes through the positioning frame, and the end of the second locking block is provided with a locking part, which is located on one side of the tray.

5. The dual-station cell stacking assembly according to claim 1, characterized in that, The positioning carrier and the straightening clamping device are provided with at least one limiting stop on the upright plate.

6. The dual-station cell stacking assembly according to claim 1, characterized in that, The first clamping assembly includes a positioning plate slidably connected to the positioning and clamping frame, and two sets of claws slidably connected to the lower part of the positioning plate, with a claw push cylinder connected to each claw.

7. The dual-station cell stacking assembly according to claim 6, characterized in that, The claw body is provided with an anti-slip block, which passes through the claw body via a guide rod. A top block is provided at one end of the guide rod that passes through the claw body, and an elastic element is provided between the guide rod and the top block.

8. The dual-station cell stacking assembly according to claim 6, characterized in that, An adjusting cylinder is connected to the positioning plate, and the adjusting cylinder pushes the positioning plate closer to or away from the upright plate.

Images