Double-station battery cell stacking assembly

Abstract

The invention provides a double-station battery cell stacking assembly which comprises a vertical plate and at least one positioning carrier fixed to the bottom of the vertical plate. The correcting and clamping device is connected to the vertical plate in a sliding mode and comprises a positioning and pressing frame, first clamping assemblies are connected to the positioning and pressing frame and extend to the two sides of the lower portion of the positioning and pressing frame, a second clamping assembly is arranged between the first clamping assemblies, and the second clamping assembly extends to the two sides of the lower portion of the positioning and pressing frame. The second clamping assembly comprises a rotary pressing air cylinder and a pushing air cylinder, the assembly positions the carrying disc through the positioning carrying frame and the carrying disc locking assembly, and then corrects the position of a square battery cell sent by a previous manipulator through the correction clamping device; the first clamping assembly and the second clamping assembly ensure that the battery cells can still be centered after being connected, and can be gradually overlapped up and down, so that the battery cells can be aligned with each other, and the whole assembly is compact in structure.

Description

Technical Field

[0001] The invention relates to the field of battery assembly automation equipment, and in particular to a double-station battery cell stacking assembly. Background Art

[0002] The new energy vehicle battery pack is one of the core components of electric vehicles, responsible for storing and providing electrical energy. At this stage, it mainly includes cylindrical cells and square cells. The assembly of square cells is achieved through automated production lines. An adhesive layer is attached to the surface of the square cells through the previous process, and then the cells are pressed and fit together. In order to achieve full automation of the above process, the technical problem to be solved is that when the previous square cells are transported and stacked, the cells must be aligned with each other, and after being transferred between different robots, the stacked position of the cells can still remain stable to ensure that the final stacking and bonding meet the product requirements. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes a double-station battery cell stacking assembly, comprising

[0004] Stand board,

[0005] At least one positioning carrier, the positioning carrier is fixed to the bottom of the vertical plate and is used to support the carrier plate;

[0006] A carrier plate locking assembly, the carrier plate locking assembly is located at the lower part of the positioning carrier and is slidably connected to the vertical plate, and the carrier plate locking assembly is used to press the carrier plate;

[0007] At least one corrective clamping device, the corrective clamping device is slidably connected to the vertical plate, including a positioning and pressing frame, the positioning and pressing frame is connected to a first clamping assembly, the first clamping assembly extends to both sides of the lower part of the positioning and pressing frame, a second clamping assembly is arranged between the first clamping assemblies, the second clamping assembly includes a rotating clamping cylinder and a pushing cylinder, the pushing cylinder extends in a direction perpendicular to the vertical plate and is connected to a push plate, the output end of the rotating clamping cylinder is connected to a pressing block, the pressing block rotates an angle and approaches the pushing block, and presses the battery cell against the pushing block, so as to adjust the distance between the battery cell and the vertical plate;

[0008] The correction clamping device is connected to a lifting assembly, and the lifting assembly drives the correction clamping device to approach or move away from the positioning carrier.

[0009] Preferably, the lifting assembly is a sliding module, a sliding block of which is connected to a long plate, and the long plate is fixedly connected to the positioning and pressing frame.

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

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

[0012] Preferably, the carrier locking assembly includes a connecting plate, a fine-tuning cylinder is connected to the connecting plate, the fine-tuning cylinder pushes the connecting plate to move up and down, at least two groups of locking cylinders are provided on the connecting plate, the output end of the locking cylinder is connected to a first clamping block and a second clamping block, the first clamping block passes through the positioning carrier, and a clamping portion is provided at the end of the second clamping block, and the clamping portion is located on one side of the carrier.

[0013] Preferably, at least one limiting stop bar is provided on the vertical plates of the positioning carrier and the correction clamping device.

[0014] Preferably, the first clamping assembly comprises a positioning plate slidably connected to the positioning and pressing frame, two groups of claw bodies are slidably connected to the lower part of the positioning plate, and the claw bodies are respectively connected to clamping claw pushing cylinders.

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

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

[0017] The double-station battery cell stacking assembly proposed in the present invention has the following beneficial effects: this assembly uses a positioning carrier and a carrier locking assembly to position the carrier, and then uses a correction clamping device to correct the position of the square battery cell sent by the previous robot. The first clamping assembly and the second clamping assembly ensure that the battery cell can still be centered after the handover, and can be gradually stacked up and down to ensure that the battery cells are aligned with each other, and the entire assembly structure is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

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

[0020] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0021] Figure 3It is a schematic diagram of the installation of the positioning carrier and the correction clamping device of the present invention on the vertical plate;

[0022] Figure 4 For the present invention Figure 3 A in the enlarged view;

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

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

[0025] Figure 7 It is a schematic diagram of the back side of the correction clamping device of the present invention;

[0026] Figure 8 It is a schematic diagram of the assembly of the first clamping assembly and the second clamping device of the present invention;

[0027] Fig. 9 It is a schematic diagram of the pressing and centering device of the present invention;

[0028] Among them, 1. vertical plate; 2. positioning carrier; 3. carrier plate; 4. carrier plate 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 clamping frame; 12. first clamping assembly; 13. second clamping assembly; 14. rotary clamping cylinder; 15. pushing cylinder; 16. pressing block; 17. pushing block; 18. positioning plate; 19. claw body; 20. clamping claw pushing cylinder; 21. anti-sliding block; 22. top block; 23. elastic member; 24. lifting assembly; 25. tight centering device; 26. double-headed cylinder; 27. long rod; 28. first slide rail; 29. ​​limit stop bar; 30. adjustment cylinder; 31. battery cell. DETAILED DESCRIPTION

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

[0030] like Figure 1 , Figure 2 As shown, the present invention proposes a double-station battery cell stacking assembly, comprising

[0031] The vertical plate 1 is used to install all components. At least one positioning carrier 2 is arranged on the positioning plate 18. The positioning carrier 2 is fixed to the bottom of the vertical plate 1 and is used to support the carrier 3. The carrier 3 is used to place the battery cell 31. In this embodiment, the positioning carrier 2 is arranged in two groups, and each group of positioning carriers 2 is correspondingly provided with a carrier 3 locking assembly. The carrier 3 locking assembly is located at the lower part of the positioning carrier 2 and is slidably connected to the vertical plate 1. The carrier 3 locking assembly is used to press the carrier 3. The positioning carrier 2 is fixedly arranged. In this embodiment, it is a C-shaped plate, but it can also be an ordinary flat plate. The plate surface of the positioning carrier 2 is provided with an opening to facilitate the carrier 3 locking assembly to pass through. Specifically, the carrier 3 locking assembly includes a connecting plate 5, which is slidably connected to the vertical plate 1. There are many "sliding connections" involved in this case. The sliding connections in this case are all set and engaged by slide rails. The sliding connections involved below will not be repeated.

[0032] like Figure 4 , 5 As shown, the connecting plate 5 is connected with a fine-tuning cylinder 6, and the fine-tuning cylinder 6 is located on the back of the vertical 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 groups of locking cylinders 7. The output end of the locking cylinder 7 is connected with a first clamping block 8 and a second clamping block 9. The first clamping block 8 passes through the opening of the positioning carrier 2, and the end of the second clamping block 9 is provided with a clamping portion, and the clamping portion is located on one side of the carrier 3. When the robot arm of the current process grabs and places the carrier 3 on the bottom plate, since the carrier 3 is an injection molded product with a grid-shaped structure at the bottom, the fine-tuning cylinder 6 pushes it upward to ensure that the first clamping block 8 extends from the opening to the lower part of the carrier 3, and then contracts through the locking cylinder 7, the first clamping block 8 clamps the bottom of the carrier 3, and the second clamping block 9 presses the edge of the carrier 3 to realize the positioning of the carrier 3.

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

[0034] like Figure 6 As shown, the correction clamping device 10 is slidably connected to the vertical plate 1, and includes a positioning and clamping frame 11. The function of the positioning and clamping frame 11 is to support the lower components and to compress and bond the battery cells 31 by pressing downward. In this embodiment, the positioning and clamping frame 11 is two groups of frame structures arranged perpendicular to the vertical plate 1. A silicone pad is provided at the bottom of the frame structure to prevent the battery cells 31 from being crushed when pressing downward.

[0035] like Figure 7 , 8As shown, the positioning and pressing frame 11 is connected to a first clamping assembly 12, and the first clamping assembly 12 is slidably connected to a positioning plate 18, and an adjusting cylinder 30 is connected to the positioning plate 18, and the adjusting cylinder 30 pushes the positioning frame closer to or away from the vertical plate 1. The first clamping assembly extends on both sides of the lower part of the positioning and pressing frame 11, and a second clamping assembly 13 is arranged between the first clamping assembly 12, and the second clamping assembly 13 includes a rotating clamping cylinder 14 and a pushing cylinder 15, and the pushing cylinder 15 extends in a direction perpendicular to the vertical plate 1 and is connected to a push plate, and the output end of the rotating clamping cylinder 14 is connected to an anti-sliding block 21, and the anti-sliding block 21 rotates an angle and approaches the push block 17, and presses the battery cell 31 against the push block 17, so as to adjust the distance between the battery cell 31 and the vertical plate 1.

[0036] The first clamping assembly 12 is used to clamp the battery cell 31 transferred by the robot, and the first clamping assembly 12 includes a positioning plate 18 slidably connected to the positioning and pressing frame 11, and two groups of claws 19 are slidably connected to the lower part of the positioning plate 18. Figure 8 As shown, the claw body 19 is respectively connected with a clamping claw pushing cylinder 20, and the claw body 19 is provided with an anti-sliding block 21, and the anti-sliding block 21 passes through the claw body 19 through a guide rod, and a top block 22 is provided at one end of the guide rod passing through the claw body 19, and an elastic member 23 is provided between the guide rod and the top block 22. The clamping claws 20 on both sides are pushed to push the cylinder 20 to clamp at the same time to ensure that the strokes on both sides are consistent, which can ensure the alignment of the battery cell 31 in the length direction. Then, it is necessary to adjust the position of the battery cell 31 in the width direction (i.e., the short side direction in the figure) to center. At this time , the pushing cylinder 15 of the second clamping assembly 13 is started by adjusting the distance between the push plate and the anti-sliding block 21. At the same time, the anti-sliding block 21 is controlled by the rotary pressing cylinder 14 to rotate 90°. In the initial state, in order to prevent interference with the delivered battery cell 31, it is in a horizontal state. When the rotary pressing cylinder 14 is working, it rotates 90° and has a certain stroke perpendicular to the direction of the push plate, so the short side of the battery cell 31 can be pressed tightly, and the position of the short side direction of the battery cell 31 is limited in combination with the push plate.

[0037] Then, the lifting assembly 24 connected to the correction clamping device 10 controls the correction clamping device 10 to descend, and moves the battery cell 31 downward onto the carrier 3. During the process, in order to ensure that the battery cell 31 does not tilt, Figure 3 As shown, at least one limit stop bar 29 is provided on the vertical plate 1 of the positioning carrier 2 and the correction clamping device 10. In this embodiment, two limit stop bars 29 are provided in parallel. The limit stop bars 29 have a certain thickness. When the battery cell 31 descends, it moves down along the limit stop bar 29. In order to further ensure that each battery cell 31 is also flush with the stacked battery cell 31 below, the first clamping assembly 12 is in a loose state during the downward movement, and is further limited by a separately provided pressing and centering device 25, as shown in FIG. Fig. 9 As shown, the clamping and centering device 25 includes a double-headed cylinder 26, and the output ends of the double-headed cylinder 26 are respectively connected to parallel long rods 27, and the long rods 27 are respectively located on both sides of the direction in which the correction clamping device 10 moves to the positioning carrier 2. The double-headed cylinder 26 drives the long rods 27 to approach each other, and the long rods 27 are pressed on a battery cell 31 supported on the upper part and the battery cell 31 that has been stacked on the lower part at the same time, to ensure that the battery cell 31 that moves downward on the upper part is aligned with the lower part.

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

[0039] The working method of this case is: after the robot grabs the previous battery cell 31 onto the first clamping component 12, the first clamping component 12 is clamped and centered, and then the second clamping component 13 is clamped to center the short side direction, and then the long rod 27 of the centering device 25 is clamped to further align the single battery cell 31 with the lower stacked battery cell 31, and finally the upper correction clamping device 10 is driven downward by the lifting component 24. Since the rotating cylinder of the second clamping component 13 rotates 90°, the clamped battery cell 31 is lower than the bottom of the positioning and pressing frame 11, so the battery cell 31 is placed first, and then the rotating cylinder is reset, and then the positioning and pressing frame 11 continues to press down, so that the newly stacked battery cell 31 can be pressed down, and an adhesive layer is attached between the battery cells in advance, and after pressing, the battery cells 31 are bonded to each other.

Claims

1. A double-station battery cell stacking assembly, characterized in that: include Stand board, At least one positioning carrier, the positioning carrier is fixed to the bottom of the vertical plate and is used to support the carrier plate; A carrier plate locking assembly, the carrier plate locking assembly is located at the lower part of the positioning carrier and is slidably connected to the vertical plate, and the carrier plate locking assembly is used to press the carrier plate; At least one corrective clamping device, the corrective clamping device is slidably connected to the vertical plate, including a positioning and pressing frame, the positioning and pressing frame is connected to a first clamping assembly, the first clamping assembly extends to both sides of the lower part of the positioning and pressing frame, a second clamping assembly is arranged between the first clamping assemblies, the second clamping assembly includes a rotating clamping cylinder and a pushing cylinder, the pushing cylinder extends in a direction perpendicular to the vertical plate and is connected to a push plate, the output end of the rotating clamping cylinder is connected to a pressing block, the pressing block rotates an angle and approaches the pushing block, and presses the battery cell against the pushing block, so as to adjust the distance between the battery cell and the vertical plate; The correction clamping device is connected to a lifting assembly, and the lifting assembly drives the correction clamping device to approach or move away from the positioning carrier.

2. The double-station battery cell stacking assembly according to claim 1, characterized in that: The lifting assembly is a sliding module, a sliding block of the sliding module is connected to a long plate, and the long plate is fixedly connected to the positioning and pressing frame.

3. The double-station battery cell stacking assembly according to claim 1, characterized in that: At least one clamping and centering device is provided on the vertical plate, and the clamping and centering device includes a double-headed cylinder, and the output ends of the double-headed cylinder are respectively connected to parallel long rods, and the long rods are respectively located on both sides of the direction in which the correction clamping device moves to the positioning carrier.

4. The double-station battery cell stacking assembly according to claim 3, characterized in that: A first slide rail is arranged between the elongated rod and the vertical plate.

5. The double-station battery cell stacking assembly according to claim 1, characterized in that: The carrier locking assembly includes a connecting plate, a fine-tuning cylinder is connected to the connecting plate, the fine-tuning cylinder pushes the connecting plate to move up and down, at least two groups of locking cylinders are provided on the connecting plate, the output end of the locking cylinder is connected to a first clamping block and a second clamping block, the first clamping block passes through the positioning carrier, and a clamping portion is provided at the end of the second clamping block, and the clamping portion is located on one side of the carrier.

6. The double-station battery cell stacking assembly according to claim 1, characterized in that: At least one limiting stop bar is arranged on the vertical plates of the positioning carrier and the correction clamping device.

7. The double-station battery cell stacking assembly according to claim 1, characterized in that: The first clamping assembly comprises a positioning plate slidably connected to the positioning and pressing frame, two groups of claw bodies are slidably connected to the lower part of the positioning plate, and the claw bodies are respectively connected to clamping claw pushing cylinders.

8. The double-station battery cell stacking assembly according to claim 7, characterized in that: The claw body is provided with an anti-sliding block, and the anti-sliding block passes through the claw body through a guide rod, and a top block is provided at one end of the guide rod passing through the claw body, and an elastic member is provided between the guide rod and the top block.

9. The double-station battery cell stacking assembly according to claim 7, characterized in that: The positioning plate is connected to an adjusting cylinder, and the adjusting cylinder pushes the positioning frame to approach or move away from the vertical plate.

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