High-precision automatic stacking equipment for electric pile production line

Abstract

The invention relates to the field of galvanic pile production equipment, in particular to high-precision automatic stacking equipment used on a galvanic pile production line. A single battery feeding mechanism is used for storing and positioning galvanic pile single batteries; the secondary positioning mechanism is used for carrying out secondary positioning on the electric pile single battery; the stacking tray is used for storing and positioning the galvanic pile single cells and stacking the galvanic pile single cells to form a galvanic pile; the stacking three-axis transferring mechanism is provided with an action terminal, and the stacking three-axis transferring mechanism can control the action terminal to move in the wire inlet space; the stacking gripper mechanism is used for sucking the electric pile single batteries, the stacking gripper mechanism is installed at an action terminal of the stacking three-axis transferring mechanism, and the stacking three-axis transferring mechanism drives and sucks the electric pile single batteries to move among the single battery feeding mechanism, the secondary positioning mechanism and the stacking tray. The equipment not only can ensure the single cell stacking precision of the electric pile, but also can improve the working efficiency.

Description

Technical Field

[0001] The present invention relates to the field of battery stack production equipment, in particular to a high-precision automatic stacking device used on a battery stack production line. Background Art

[0002] The fuel cell stack is the core component of the hydrogen fuel engine, and the stacking accuracy of the single cells in the fuel cell stack will directly affect the sealing of the fuel cell cavity and then affect the performance of the engine. Previously, the stacking of single cells was mainly done manually, which could not guarantee the required stacking accuracy and was inefficient, and could not meet the quality and market supply requirements. Therefore, a high-precision automatic stacking device for the fuel cell production line is needed to solve these problems. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a high-precision automatic stacking device for use in a fuel cell production line, which can not only ensure stacking accuracy but also improve work efficiency.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A high-precision automatic stacking device for a battery production line, comprising Single cell loading mechanism, used to store and position the stack cells; A secondary positioning mechanism is used for secondary positioning of the battery stack cells; The stacking tray is used to store and preliminarily position[5] the battery stack cells. Multiple cells are manually placed in the stacking tray in a uniform direction[6]; A stacked three-axis transfer mechanism having an action terminal, wherein the stacked three-axis transfer mechanism can control the movement of the action terminal into the line space; The stacking gripper mechanism is used to absorb the battery stack single cells. The stacking gripper mechanism is installed at the action terminal of the stacking three-axis transfer mechanism, and is driven by the stacking three-axis transfer mechanism to absorb the battery stack single cells and move them between the single cell feeding mechanism, the secondary positioning mechanism and the stacking tray.

[0005] Preferably, the stacking gripper mechanism comprises [7] two vacuum suction cups [8] arranged in parallel, which can grasp two single cells at the same time.

[0006] Preferably, the acquisition station also includes a laser ranging sensor for detecting the distance between the vacuum suction cup and the battery stack cell to be acquired, and a visual detection device for preventing the position and direction of the grasped cell from being incorrect.

[0007] Preferably, a material stacking mechanism is also provided at the stacking tray, and the material stacking mechanism includes a pallet and a displacement mechanism, and the displacement mechanism can drive the pallet to move vertically and laterally, so as to enable the pallet to support the battery stack cells at the entrance of the stacking tray and to move laterally out after moving down to a predetermined position.

[0008] Preferably, the stacking tray comprises Base plate; A stacking fixed backer, which is fixedly arranged on the top surface of the reference bottom plate; A stacking movable backer is arranged on the top surface of the reference bottom plate and is opposite to the stacking fixed backer; An adjustment mechanism, which is fixedly mounted on the reference bottom plate, and has an action end, which is connected to the stacking movable backer; The adjusting mechanism can drive the stacking movable backing to move linearly toward or away from the stacking fixed backing.

[0009] Preferably, the stacking tray further comprises: A connecting block connected to the action end of the adjusting mechanism; A linear guide rail is fixed to the reference base plate and is located below the connecting block. The linear guide rail is provided with a slider, and the connecting block is connected to the slider. The extension direction of the linear guide rail is parallel to the line connecting the stacking fixed backing and the stacking movable backing.

[0010] Preferably, the connecting block includes a through hole horizontally passing through the connecting block, the action end of the adjusting mechanism has a horizontally arranged screw rod, the screw rod passes through the through hole of the connecting block, and a stacking movable backrest limit adjustment screw is provided on the side of the connecting block away from the adjusting mechanism, and the stacking movable backrest limit adjustment screw is used to cooperate with the screw rod to adjust the closed position of the stacking movable backrest.

[0011] Preferably, an anti-torsion tooling is included between the stacking fixed backrest and the stacking movable backrest, and the anti-torsion tooling includes an anti-torsion sleeve, a stack nut, a stack screw and a stack top plate, wherein there are multiple anti-torsion sleeves and they are respectively located on both sides of the width direction of the stack station, the anti-torsion sleeve is rotatably installed on the top surface of the reference base plate, and each of the anti-torsion sleeves has a stack nut on the top, the lower end of the stack screw has an external thread, the stack screw is connected to the stack nut by threads, the stack top plate is located above the stack station, and the upper end of the stack screw is rotatably connected to the stack top plate.

[0012] Preferably, the outer periphery of the anti-torsion sleeve has two mutually parallel locking surfaces; the top surface of the reference bottom plate is also provided with an unlocking slide plate at a position corresponding to the stack station, and the unlocking slide plate is provided with a locking groove at a position corresponding to the anti-torsion sleeve, the anti-torsion sleeve is located in the locking groove, and the locking groove includes a narrow mouth area whose width matches the spacing between the two locking surfaces, and an expanded mouth area whose width is greater than the narrow mouth area; Horizontally sliding the reference base plate enables positioning of the anti-torsion sleeve through the narrow mouth area.

[0013] Preferably, a support guide block is provided above the unlocking slide, the support guide block is fixedly connected to the reference base plate, and the unlocking slide can slide between the support guide block and the reference base plate, and the support guide block is used to limit the horizontal movement of the unlocking slide.

[0014] The beneficial effects of using the present invention are: The high-precision automatic stacking device on this battery stack production line ensures the stacking accuracy of the battery stack cells while improving the stacking efficiency. It has a simple structure, low machining and assembly requirements, saves costs, reduces labor intensity, and the overall structure is clean and pollution-free, effectively protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the axial side of the high-precision automatic stacking equipment used in the battery stack production line.

[0016] Figure 2 This is a side view schematic diagram of the high-precision automatic stacking equipment used in the battery stack production line.

[0017] Figure 3 for Figure 2 A local enlarged view of point P in the middle.

[0018] Figure 4 A schematic diagram of the structure of stacked pallets.

[0019] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0020] Figure 6 A schematic top view of a stack of pallets.

[0021] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0022] Figure 8 for Figure 6 Cross-sectional view along CC.

[0023] Fig. 9 Schematic diagram of the anti-torsion sleeve.

[0024] Reference numerals include: 1-single battery feeding mechanism, 2-secondary positioning mechanism, 3-stacking gripper mechanism, 31-vacuum suction cup, 32-laser ranging sensor, 33-visual inspection equipment, 4-stacking three-axis transfer mechanism, 5-material stacking mechanism, 6-stacking tray, 61-reference base plate, 62-stacking fixed backrest, 63-stacking movable backrest, 64-unlocking slide plate, 641-locking groove, 6411-narrow mouth area, 6412-expansion area, 65-anti-torsion tooling, 651-anti-torsion sleeve, 6511-locking surface, 652-battery stack nut, 653-avoidance groove, 654-battery stack screw, 655-battery stack top plate, 66-support guide block, 67-stacking movable backrest fixed clamp, 68-linear guide rail, 69-stacking movable backrest limit adjustment screw, 610-connecting block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the technical solution more clear, the technical solution is further described in detail below in conjunction with specific implementation methods. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the technical solution.

[0026] like Figure 1-Figure 3 As shown, this embodiment proposes a high-precision automatic stacking device for a battery stack production line, including a single-cell loading mechanism 1, which is used to store and position battery stack single cells; a secondary positioning mechanism 2 is used to secondary position the battery stack single cells; a stacking tray 6 is used to store and position the battery stack single cells, and stack the battery stack single cells to form a battery stack; the stacking three-axis transfer mechanism 4 has an action terminal, and the stacking three-axis transfer mechanism 4 can control the movement of its action terminal in the line space; the stacking gripper mechanism 3 is used to absorb the battery stack single cells, and the stacking gripper mechanism 3 is installed at the action terminal of the stacking three-axis transfer mechanism 4, and is driven by the stacking three-axis transfer mechanism 4 to absorb the battery stack single cells and move between the single-cell loading mechanism 1, the secondary positioning mechanism 2 and the stacking tray 6.

[0027] Specifically, the function of the single-cell loading mechanism 1 is to manually place the battery stack single cells in a certain direction and order in the material frame in advance, and then place the material frame at the loading position to ensure that the three-axis transplanting gripper has several fixed grasping positions, which belongs to the positioning of the initial position of the battery stack single cell. The function of the secondary positioning mechanism 2 is that after the three-axis stacking gripper grabs the single cell and places it on the secondary positioning platform, the secondary positioning mechanism 2 pushes and clamps the single cell in the X and Y directions in the horizontal direction. The function of the stacking gripper mechanism is to stably grasp the single cell. The mechanism is equipped with a visual detection sensor to prevent errors and prevent the position and direction of the grasped single cell from being wrong; the mechanism is also equipped with a laser ranging sensor 32 to ensure that the vacuum suction cup 31 gripper can accurately and stably grasp the single cell. The function of the stacking three-axis transfer mechanism is to accurately drive the stacking gripper mechanism 3 to move in a certain area. The function of the material stacking mechanism 5 is to cooperate with the stacking latch mechanism to ensure that the single cell stacking can accurately fall into the stacking production line tray stacking tooling when stacking. The function of the stacking tray 6 is the ultimate guarantee for the stacking accuracy of the battery stack, and its convenient and adjustable movable support position directly determines the stacking accuracy of the battery stack.

[0028] The design of the single-cell loading mechanism 1 not only facilitates workers to load and unload materials, but also determines the primary position requirements for stacking. The design of the secondary positioning mechanism 2 greatly reduces the loading accuracy requirements and is also the primary accuracy guarantee for stacking.

[0029] The stacking gripper mechanism 3 includes at least one battery stack single cell acquisition station, which is provided with two parallel vacuum suction cups 31. The acquisition station also includes a laser distance sensor 32 for detecting the distance between the vacuum suction cup 31 and the battery stack single cell to be acquired, and a visual inspection device 33 for preventing the position and direction of the grabbed single cell from being incorrect. The stacking gripper mechanism 3 adopts a vacuum negative pressure suction method to minimize damage to precious materials such as single cells. At the same time, it can identify the direction of the material. Equipped with a visual inspection device 33 to prevent errors, to prevent the position and direction of the grabbed single cell from being incorrect, the laser distance sensor 32 ensures that the vacuum suction cup 31 gripper can accurately and stably grasp the single cell.

[0030] A material stacking mechanism 5 is also provided at the stacking tray 6. The material stacking mechanism 5 includes a pallet and a displacement mechanism. The displacement mechanism can drive the pallet to move vertically and laterally, so that the pallet supports the battery stack cells at the entrance of the stacking tray 6 and moves laterally out after moving down to a predetermined position, so as to avoid damage to the battery stack cells due to excessive falling distance.

[0031] When the device is used, the battery stack cells are first stacked in the battery loading mechanism 1, and the stacking three-axis transfer mechanism 4 drives the stacking gripper mechanism 3 to move to the battery loading mechanism 1 to obtain the battery stack cells. The stacking three-axis transfer mechanism 4 drives the vacuum suction cup 31 to move to the secondary positioning mechanism 2 to put down the battery stack cells. The battery stack cells fall into the secondary positioning mechanism 2 and then enter the secondary positioning. The battery stack cells that have been precisely positioned are re-absorbed by the stacking gripper mechanism 3 and moved to the stacking tray 6. At this time, the support plate of the material stacking mechanism 5 is located near the opening of the stacking tray 6. The vacuum suction cup 31 releases the battery stack cells, and the battery stack cells fall onto the support plate of the material stacking mechanism 5. Then, after the support plate moves down to the top position of the battery stack in the stacking tray 6, it moves sideways and withdraws, completing one action cycle.

[0032] like Figure 4 As shown, a reference base plate 61 is provided at the bottom of the stacking tray 6, and the reference base plate 61 serves as the basis for installing various components. The reference base plate 61 is a metal plate, and 62 stacking fixed backrests 62 are provided on the top surface of the reference base plate 61. The lower ends of two stacking fixed backrests 62 are fixed on the front side of the reference base plate 61, and two stacking movable backrests 63 are provided opposite to the two stacking fixed backrests 62. The stacking movable backrests 63 and the stacking fixed backrests 62 are opposite to each other one by one, and an independent battery stacking station is formed between the two stacking movable backrests 63 and the stacking fixed backrests 62. A linear guide 68 is installed between the two stacking movable backrests 63, and the bottom of the linear guide 68 is connected to the reference base plate 61, and a stacking movable backrest fixing clamp 67 is provided on the back side of the stacking movable backrest 63, that is, the stacking movable backrest 63 is opposite to the battery stacking station direction, and the action end of the stacking movable backrest fixing clamp 67 is connected to a wire rod, and the action end of the stacking movable backrest fixing clamp 67 is connected to the connecting block 610 through a wire rod.

[0033] In this embodiment, the linear guide rail 68 has a slider, and the connecting block 610 is fixedly connected to the slide rail, so the linear guide rail 68 can guide the connecting block 610 to move only linearly forward and backward through the connection between the slider and the connecting block 610, that is, the extension direction of the linear guide rail 68 is parallel to the connection line between the stacking fixed backrest 62 and the stacking movable backrest 63. Since the stacking movable backrest fixing clamp 67 is connected to the connecting block 610 through a screw rod, the stacking movable backrest fixing clamp 67 can be manually operated to drive the connecting block 610 to move along the extension direction of the linear guide rail through the action end of the stacking movable backrest fixing clamp 67, that is, the connecting block 610 pushes and pulls the two stacking movable backrests 6 to move toward the stacking fixed backrest 62, or to move away from the stacking fixed backrest 62.

[0034] In other embodiments, the linear guide rail 68 can be replaced with other linear guide mechanisms. At the same time, the stacking movable backing fixing clamp 67 can also be replaced with a pneumatic device or an electric device, which can drive the connecting block 610 to move linearly.

[0035] Combination Figure 6 and Figure 7 As shown, in this embodiment, the connection method between the screw rod and the connecting block 610 is as follows: the connecting block 610 includes a through hole that passes through the connecting block 610 horizontally, and the action end of the adjustment mechanism has a screw rod that is arranged horizontally, and the screw rod passes through the through hole of the connecting block 610. The screw rod is provided with a stacking movable backrest limit adjustment screw 69 on the side of the connecting block 610 away from the adjustment mechanism. The stacking movable backrest limit adjustment screw 69 is used to cooperate with the screw rod to adjust the closed position of the stacking movable backrest 63. There are positioning devices on both sides of the connecting block 610. In this embodiment, the positioning device of the connecting block 610 is the stacking movable backrest limit adjustment screw 69. By adjusting the position of the stacking movable backrest limit adjustment screw 69, the extreme movement position of the connecting block 610 can be finely adjusted, and finally the movement position of the stacking movable backrest 3 can be adjusted.

[0036] For example, after a predetermined number of battery stacks are placed in the battery stacking station, the stacking movable backrest fixing clamp 67 can be manually operated, and the action end of the stacking movable backrest fixing clamp 67 pushes the connecting block 610 to move on the linear guide rail 68, and the connecting block 610 is limited by the stacking movable backrest limit adjustment screw 69 to move to the extreme position. At this time, the stacking movable backrest 63 moves to the preset extreme position, and the stacking fixed backrest 62 and the stacking movable backrest 63 cooperate to limit the stacking area of ​​the battery stack.

[0037] It should be noted that the function of the reference base plate 61 is to unify all components and supporting workpieces such as the reference fixed stacking backrest. The bottom of the reference base plate 61 is equipped with a wear-resistant strip suitable for transportation and circulation on a conveyor line such as a double-speed chain. The function of the stacking fixed backrest 62 on the reference base plate 61 is to limit the position of components such as single cells when the battery stack is stacked. The stacking fixed backrest 62 has a groove corresponding to the width of the battery stack station corresponding to the direction of the battery stack station, and cooperates with the stacking movable backrest 63 to achieve the restriction of the multi-directional freedom of the battery stack. The function of the stacking movable backrest 63 is to facilitate the stacking of single cells within a certain space range when the backrest is released, and to limit the single cells within the required stacking accuracy when closed. The stacking movable backrest fixing clamp 67 can move the stacking movable backrest 63 by manually operating the clamp, and has a large clamping force when clamping to keep the stacking movable backrest 63 in the required position.

[0038] In this embodiment, since there are two groups of stacked fixed backings 62 and stacked movable backings 63, the connecting block 610 is a horizontally arranged bow-shaped member. In other embodiments, the structure and shape of the connecting block 10 can also be changed according to the different designs of the number of stacked fixed backings 62 and stacked movable backings 63.

[0039] In summary, the design of the stacking fixed backrest 62 and the stacking movable backrest 63 ensures both convenience and stacking accuracy. The design of the stacking movable backrest limit adjustment screw 69 greatly reduces the overall machining accuracy requirements and assembly accuracy requirements. At the same time, the design and application of the linear guide 68 ensures the repeated positioning accuracy of the stacking movable backrest 63 each time it is pushed against. At the same time, the design and application of the stacking movable backrest fixing clamp 67 saves labor while ensuring the retention force of the fixed stacking movable backrest.

[0040] like Figure 4 and Figure 8 As shown, the stacking fixed backing 62 and the stacking movable backing 63 also include an anti-torsion tooling 65, which includes an anti-torsion sleeve 651, a stack nut 652, a stack screw 654 and a stack top plate 655, wherein there are multiple anti-torsion sleeves 651 and they are respectively located on both sides of the width direction of the stack station, the anti-torsion sleeves 651 are rotatably installed on the top surface of the reference bottom plate 1, and the top of each anti-torsion sleeve 651 has a stack nut 652, the lower end of the stack screw 654 has an external thread, the stack screw 654 is connected to the stack nut 652 by threads, the stack top plate 655 is located above the stack station, and the upper end of the stack screw 654 is rotatably connected to the stack top plate 655. The column-mounted structure connected by the anti-torsion sleeve 651 and the stack nut 652 has a avoidance groove 653 inside, and the avoidance groove 653 is used to accommodate the end of the stack screw 654. The anti-torsion sleeve 651, the stack nut 652, the stack screw 654 and the stack top plate 655 cooperate with the supporting components below to generally form a cage structure around the outside of the stack to prevent the high-precision stack from twisting.

[0041] In this embodiment, the function of the anti-torsion sleeve 651 is that when the stack screw 54 and the stack nut 652 are tightened, one end of the anti-torsion sleeve 651 clamps the hexagonal nut, and the other end clamps in the locking groove 641 of the unlocking slide 64, so as to achieve the effect of preventing the stack nut 652 from rotating and twisting when tightening the stack nut 652.

[0042] Combination Figure 5 and Fig. 9As shown, the outer periphery of the anti-torsion sleeve 651 has two mutually parallel locking surfaces 6511; the top surface of the reference bottom plate 61 corresponds to the stack station and is also provided with an unlocking slide plate 64, and a locking groove 641 is provided at the unlocking slide plate 6 corresponding to the anti-torsion sleeve 651, and the anti-torsion sleeve 651 is located in the locking groove 641, and the locking groove 641 includes a narrow area 6411 matching the spacing between the two locking surfaces 6511 and a flared area 6412 with a width greater than the narrow area 6411; the horizontal sliding reference bottom plate 61 can position the anti-torsion sleeve 651 through the narrow area 6411. The unlocking slide plate 64 is also provided with a support guide block 66 above, and the support guide block 66 is fixedly connected to the reference bottom plate 61, and the unlocking slide plate 64 can slide between the support guide block 66 and the reference bottom plate 61, and the support guide block 66 is used to limit the unlocking slide plate 64 from moving in the horizontal direction. When tightening the nut of the battery stack screw 654, the unlocking slide 64 can slide to clamp the anti-torsion sleeve 651 to prevent rotation, and the locking surface 6511 of the anti-torsion sleeve 651 enters the narrow area 6411 from the expanded area 6412 of the lock groove 641. Secondly, when the battery stack is offline, the unlocking slide 64 can be pushed by an external force so that the unlocking slide 64 no longer clamps the anti-torsion sleeve 651 to eliminate the reaction force generated during tightening, thereby facilitating the battery stack to be easily removed from the tooling. In addition, the design of the unlocking slide 64 has both the functions of anti-torsion and unlocking, and also has the function of limiting the anti-torsion sleeve 651 in the hole of the reference base plate 61 to prevent it from detaching.

[0043] The top surface of the support guide block 66 is provided with threaded holes at the four corners, and the threaded holes are installed with top screws, which are used to accurately adjust the height of the stack support surface. The support guide block 66 serves as the support surface when assembling the stack, and the support guide block 66 can also clamp the unlocking slide plate 64, limiting its sliding within a certain range of front and rear.

[0044] In summary, the high-precision assembly with anti-torsion tooling on the battery stack production line ensures the stacking accuracy of the battery stack cells while improving the stacking efficiency; it also plays an effective anti-torsion role in tightening the anti-dismantling nuts at special positions of the battery stack. The overall design enables each part to play its respective role without interfering with each other in a limited and narrow space. It has a simple structure, low machining and assembly requirements, saves costs, and reduces manual labor intensity; the overall structure is clean and pollution-free, effectively protecting the environment.

[0045] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present technical content. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of this patent.

Claims

1. A high-precision automatic stacking device for a battery production line, characterized by: include Single cell loading mechanism, used to store and position the stack cells; A secondary positioning mechanism is used for secondary positioning of the battery stack cells; The stacking tray is used to store and preliminarily position[1] the battery stack cells. Multiple cells are manually placed in the stacking tray in a uniform direction[2]; A stacked three-axis transfer mechanism having an action terminal, wherein the stacked three-axis transfer mechanism can control the movement of the action terminal into the line space; The stacking gripper mechanism is used to absorb the battery stack single cells. The stacking gripper mechanism is installed at the action terminal of the stacking three-axis transfer mechanism, and is driven by the stacking three-axis transfer mechanism to absorb the battery stack single cells and move them between the single cell feeding mechanism, the secondary positioning mechanism and the stacking tray.

2. The high-precision automatic stacking equipment for a battery stack production line according to claim 1 is characterized in that: The stacking gripper mechanism comprises [3] two vacuum suction cups [4] arranged in parallel, which can grasp two single cells at the same time.

3. The high-precision automatic stacking equipment for a battery production line according to claim 2 is characterized in that: The acquisition station also includes a laser distance sensor for detecting the distance between the vacuum suction cup and the battery stack single cell to be acquired, and a visual detection device for preventing the position and direction of the grasped single cell from being incorrect.

4. The high-precision automatic stacking equipment for a battery stack production line according to claim 1 is characterized in that: The stacking tray is also provided with a material supporting stacking mechanism, which includes a support plate and a displacement mechanism. The displacement mechanism can drive the support plate to move vertically and laterally, so as to enable the support plate to support the battery stack cells at the entrance of the stacking tray and to move laterally out after moving down to a predetermined position.

5. The high-precision automatic stacking equipment for a battery stack production line according to claim 1 is characterized in that: The stacking tray comprises Base plate; A stacking fixed backer, which is fixedly arranged on the top surface of the reference bottom plate; A stacking movable backer is arranged on the top surface of the reference bottom plate and is opposite to the stacking fixed backer; An adjustment mechanism, which is fixedly mounted on the reference bottom plate, and has an action end, which is connected to the stacking movable backer; The adjusting mechanism can drive the stacking movable backing to move linearly toward or away from the stacking fixed backing.

6. The high-precision automatic stacking equipment for a battery stack production line according to claim 5 is characterized in that: The stacking tray further comprises: A connecting block connected to the action end of the adjusting mechanism; A linear guide rail is fixed to the reference base plate and is located below the connecting block. The linear guide rail is provided with a slider, and the connecting block is connected to the slider. The extension direction of the linear guide rail is parallel to the line connecting the stacking fixed backing and the stacking movable backing.

7. The high-precision automatic stacking equipment for a battery stack production line according to claim 6 is characterized in that: The connecting block includes a through hole that passes through the connecting block horizontally, and the action end of the adjusting mechanism has a horizontally arranged screw rod, and the screw rod passes through the through hole of the connecting block. A stacking movable backrest limit adjustment screw is arranged on the side of the connecting block away from the adjusting mechanism, and the stacking movable backrest limit adjustment screw is used to cooperate with the screw rod to adjust the closed position of the stacking movable backrest.

8. The high-precision automatic stacking equipment for a battery production line according to claim 5 is characterized in that: The stacking fixed backrest and the stacking movable backrest also include an anti-torsion tooling, which includes an anti-torsion sleeve, a stack nut, a stack screw and a stack top plate, wherein there are multiple anti-torsion sleeves and they are respectively located on both sides of the width direction of the stack station, the anti-torsion sleeve is rotatably installed on the top surface of the reference bottom plate, and each of the anti-torsion sleeves has a stack nut on the top, the lower end of the stack screw has an external thread, the stack screw is connected to the stack nut by threads, the stack top plate is located above the stack station, and the upper end of the stack screw is rotatably connected to the stack top plate.

9. The high-precision automatic stacking equipment for a battery stack production line according to claim 8 is characterized in that: The outer periphery of the anti-torsion sleeve has two mutually parallel locking surfaces; the top surface of the reference bottom plate is also provided with an unlocking slide plate at a position corresponding to the stack station, and the unlocking slide plate is provided with a locking groove at a position corresponding to the anti-torsion sleeve, the anti-torsion sleeve is located in the locking groove, and the locking groove includes a narrow mouth area whose width matches the spacing between the two locking surfaces, and an expanded mouth area whose width is greater than the narrow mouth area; Horizontally sliding the reference base plate enables positioning of the anti-torsion sleeve through the narrow mouth area.

10. The high-precision automatic stacking equipment for a battery production line according to claim 9 is characterized in that: A support guide block is also provided above the unlocking slide, the support guide block is fixedly connected to the reference base plate, and the unlocking slide can slide between the support guide block and the reference base plate, and the support guide block is used to limit the movement of the unlocking slide in the horizontal direction.

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