Battery cell stacking tray and battery cell stacking equipment

Abstract

The present invention relates to a battery cell stacking tray and a battery cell stacking device. The battery cell stacking tray comprises: a plate body, a support platform, a battery cell pressing mechanism and a battery cell clamping mechanism. The battery cell pressing mechanism and the battery cell clamping mechanism realize the positioning of the stacked battery cells from two directions in space. The battery cell pressing mechanism not only comprises a battery cell pressing rod and a pressure device, which can realize the pressing action on the stacked battery cells, but also comprises an avoidance device, which ensures that when the battery cells are stacked, the battery cell pressing rod and the pressure device can be driven to move and avoid, thereby providing necessary avoidance space for battery cell stacking. The battery cell stacking device is used to carry the battery cell stacking tray, and comprises a battery cell positioning component, a pressing mechanism unlocking component, and a clamping mechanism unlocking component, which can provide driving force for driving the battery cell pressing mechanism and the battery cell clamping mechanism, and cooperate with the battery cell pressing mechanism and the battery cell clamping mechanism to provide positioning space from another direction in space during the battery cell stacking process while limiting the positioning of the battery cells.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing equipment, and in particular to a battery cell stacking tray and a battery cell stacking device. Background Art

[0002] At present, the new energy power battery industry is developing rapidly, and the use of new energy power batteries also involves various aspects of society, such as automotive power batteries. As a new energy source, power batteries are clean to use and have high utilization efficiency. They are also an ideal zero-emission, pollution-free clean new energy source.

[0003] In the manufacturing process of power batteries, stacking is an important part of the module molding process. During the cell stacking process, the cells are usually automatically loaded and sorted, fixed by a fixture, and then transported to the belt line. The direction of the cells is identified by the rotation of the module robot, and then the cells are placed on a carrier for secondary stacking. This cycle is repeated to complete the cell stacking.

[0004] In the existing stacking method, when a robot grasps the battery cells for clamping and stacking, it is necessary to ensure the stacking quality of the battery cells as much as possible, that is, to limit the placement position and placement shape of the battery cells, etc. Therefore, it is necessary to position and clamp the stacked battery cells during the secondary stacking of the battery cells. Summary of the invention

[0005] To this end, the technical problem to be solved by the present invention is to overcome the positioning problem of battery cell stacking in the prior art, and to provide a battery cell stacking tray and a battery cell stacking device, by which the stacked battery cells are positioned in three directions in space through the cooperation of the battery cell stacking tray and the battery cell stacking device to ensure the quality of the battery cell stacking.

[0006] In order to solve the above technical problems, the present invention provides a battery cell stacking tray, comprising:

[0007] plate body;

[0008] A support platform, arranged on the plate body, for stacking the battery cells;

[0009] A battery cell pressing mechanism is slidably arranged on the plate body, and comprises a battery cell pressing rod, a pressure device and an avoidance device; the battery cell pressing rod is arranged above the support platform, and a battery cell accommodating space is reserved between the battery cell pressing rod and the support platform; the pressure device drives the battery cell pressing rod to abut against the battery cell placed on the support platform, and applies pressure to the battery cell; the avoidance device supports the battery cell pressing rod, provides an avoidance space for the battery cell pressing rod, and can drive the battery cell pressing rod to slide, and the battery cell pressing rod slides in the avoidance space driven by the avoidance device, and can avoid the support platform;

[0010] The battery cell clamping mechanism is arranged on the plate body, and the battery cell clamping mechanism clamps the stacked battery cells from both sides of the support platform along the battery cell stacking direction.

[0011] In one embodiment of the present invention, the pressure applying device comprises:

[0012] Adapter plate;

[0013] A guide rod, arranged in the adapter plate, the battery cell pressure rod is sleeved on the guide rod, and the battery cell pressure rod slides on the guide rod along the extension direction of the guide rod;

[0014] An elastic member is sleeved on the guide rod, and the elastic member is elastically pressed above the battery cell pressure rod, and the elastic member provides elastic pressure for the battery cell pressure rod toward the support platform.

[0015] In one embodiment of the present invention, the avoidance device comprises:

[0016] A slide rail is arranged in a horizontal direction, and the adapter plate slides on the slide rail;

[0017] A supporting roller is connected to the battery core pressure rod and supports the battery core pressure rod to slide on the plate body.

[0018] In one embodiment of the present invention, the battery cell pressing mechanism includes two pressure devices and two avoidance devices, the two pressure devices and avoidance devices are respectively arranged at both ends of the battery cell pressing rod to jointly support the same battery cell pressing rod, and two groups of battery cell pressing mechanisms are arranged on the plate body.

[0019] In one embodiment of the present invention, the battery cell clamping mechanism comprises:

[0020] A slide table extending in the same direction as the support table and penetrating the support table, wherein the top surface of the slide table is lower than the support surface of the support table;

[0021] Two clamping blocks protrude from the slide and slide on the slide along the extension direction of the slide. The two clamping blocks are respectively pressed against two ends of the stacked battery cells.

[0022] In order to solve the above technical problems, the present invention further provides a battery cell stacking device, including a machine platform, the machine platform can carry the above battery cell stacking tray, and the machine platform is also provided with:

[0023] The battery cell positioning assembly is arranged on both sides of the support platform to provide a positioning space for stacking the battery cells on the support platform;

[0024] A pressing mechanism unlocking assembly is arranged on the side of the battery cell stacking tray and cooperates with the battery cell pressing mechanism. The pressing mechanism unlocking assembly includes a vertical driving source, a horizontal driving source, an unlocking block driven by the vertical driving source and the horizontal driving source, and an unlocking pin arranged on the unlocking block; an unlocking hole for inserting the unlocking pin is arranged on the battery cell pressing mechanism, and the pressing mechanism unlocking assembly provides the battery cell pressing mechanism with a driving force for avoiding and pressing;

[0025] The clamping mechanism unlocking assembly is arranged below the battery cell stacking tray and cooperates with the battery cell clamping mechanism, including a clamping drive source, an unlocking drive source, and an unlocking terminal driven by the clamping drive source and the unlocking drive source; an unlocking hole is provided on the battery cell clamping mechanism, and the unlocking drive source drives the unlocking terminal to be inserted into the unlocking hole, so that the clamping mechanism unlocking assembly is connected to the battery cell clamping mechanism, and the clamping drive source provides a clamping driving force for the battery cell clamping mechanism.

[0026] In one embodiment of the present invention, the battery cell positioning assembly comprises:

[0027] Locate the drive source;

[0028] A positioning plate, driven by the positioning drive source to move toward or away from the support platform, wherein an end of the positioning plate abuts against a side surface of the battery cell placed on the support platform;

[0029] Insert teeth are arranged at the end of the positioning plate, and a battery cell positioning space is formed on the insert teeth;

[0030] A positioning pin is arranged on the positioning plate and driven by the positioning plate; a positioning hole cooperating with the positioning pin is arranged on the battery cell stacking tray.

[0031] In one embodiment of the present invention, it further includes a transmission component, which is arranged on the machine platform. The transmission component includes a transmission drive source and a transmission belt driven by the transmission drive source, and the battery cell stacking tray is transmitted on the transmission belt.

[0032] In one embodiment of the present invention, a lifting assembly is further included, and the lifting assembly is arranged below the transmission assembly, and the lifting assembly includes:

[0033] Lifting drive source;

[0034] A lifting plate is driven by the lifting driving source to move toward or away from the battery cell stacking tray;

[0035] A limit pin is arranged on the lifting plate, and a limit hole matching the limit pin is arranged on the battery cell stacking tray.

[0036] In one embodiment of the present invention, it also includes a tray positioning assembly, which is arranged on both sides of the battery cell stacking tray, including a tray clamping drive source and a clamping block driven by the tray clamping drive source to press against the battery cell stacking tray. At least two groups of tray positioning assemblies are provided, and the clamping blocks in the two groups of tray positioning assemblies jointly clamp the battery cell stacking tray.

[0037] The above technical solution of the present invention has the following advantages compared with the prior art:

[0038] The battery cell stacking tray described in the present invention provides space for battery cell stacking. After the robot grippers identify and adjust the direction of the battery cells, they are placed on the battery cell stacking tray to achieve secondary stacking of the battery cells. A battery cell pressing mechanism and a battery cell clamping mechanism are provided on the battery cell stacking tray of this embodiment to achieve positioning of the stacked battery cells in two directions in space. In addition, the battery cell pressing mechanism includes not only a battery cell pressing rod and a pressure device, which can achieve the pressing action on the stacked battery cells, but also an avoidance device, which ensures that when the battery cells are stacked, the battery cell pressing rod and the pressure device can be driven to move and avoid, thereby providing necessary avoidance space for the battery cell stacking.

[0039] The battery cell stacking device described in the present invention is used to carry the above-mentioned battery cell stacking tray, and is provided with a battery cell positioning component, which cooperates with the battery cell pressing mechanism and the battery cell clamping mechanism to provide positioning space from another spatial direction during the battery cell stacking process while restricting the positioning of the battery cells. The pressing mechanism unlocking component is used to cooperate with the battery cell pressing mechanism to provide the battery cell pressing mechanism with a driving force for avoidance and pressing, which can drive the battery cell pressing mechanism to complete the avoidance and pressing actions. The clamping mechanism unlocking component is used to cooperate with the battery cell clamping mechanism to provide the battery cell clamping mechanism with a clamping driving force, which can drive the battery cell clamping mechanism to complete the clamping action. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

[0041] Figure 1 It is a schematic diagram of the overall structure of the battery cell stacking tray of the present invention;

[0042] Figure 2 It is a structural schematic diagram of the battery core pressing mechanism of the present invention;

[0043] Figure 3 is a schematic structural diagram of a pressure-applying device of the present invention;

[0044] Figure 4 It is a structural schematic diagram of the battery core clamping mechanism of the present invention;

[0045] Figure 5It is a schematic diagram of the overall structure of the battery cell stacking device of the present invention;

[0046] Figure 6 It is a structural schematic diagram of the battery core positioning assembly of the present invention;

[0047] Figure 7 It is a structural schematic diagram of the unlocking assembly of the pressing mechanism of the present invention;

[0048] Figure 8 It is a structural schematic diagram of the clamping mechanism unlocking assembly of the present invention;

[0049] Fig. 9 is a schematic diagram of the structure of the transmission component of the present invention;

[0050] Fig.10 It is a structural schematic diagram of the jacking assembly of the present invention;

[0051] Fig.11 It is a structural schematic diagram of the tray positioning assembly of the present invention.

[0052] Description of the accompanying drawings: 1. Battery stacking tray; 11. Plate; 12. Support platform; 13. Battery pressing mechanism; 131. Battery pressing rod; 132. Pressure device; 1321. Adapter plate; 1322. Guide rod; 1323. Elastic member; 133. Avoidance device; 1331. Avoidance support frame; 1332. Slide rail; 1333. Support roller; 14. Battery clamping mechanism; 141. Slide platform; 142. Clamping block; 2. Battery positioning assembly; 21. Positioning drive source; 22. Positioning plate; 2 3. Insertion gear; 24. Positioning pin; 3. Pressing mechanism unlocking assembly; 31. Vertical drive source; 32. Horizontal drive source; 33. Unlocking block; 34. Unlocking pin; 4. Clamping mechanism unlocking assembly; 41. Clamping drive source; 42. Unlocking drive source; 43. Unlocking end; 5. Transmission assembly; 51. Transmission drive source; 52. Transmission belt; 6. Lifting assembly; 61. Lifting drive source; 62. Lifting plate; 63. Limiting pin; 64. Bevel block; 7. Pallet positioning assembly; 71. Transmission drive source; 72. Pressing block. DETAILED DESCRIPTION

[0053] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Example 1

[0054] Reference Figure 1As shown, a battery cell stacking tray 1 of the present invention comprises: a plate body 11, a support platform 12 arranged on the plate body 11, a battery cell pressing mechanism 13 and a battery cell clamping mechanism 14, wherein: the support platform 12 is used to stack battery cells, the support platform 12 comprises a plurality of parallel strip support blocks, a plurality of battery cells are sequentially stacked side by side on the strip support blocks along the extension direction of the strip support blocks, the extension direction of the battery cells is perpendicular to the extension direction of the strip support blocks, and the same battery cell is jointly supported by a plurality of parallel strip support blocks; after the plurality of battery cells are stacked side by side on the support platform 12, the battery cell pressing mechanism 13 and the battery cell clamping mechanism 14 are used to press the stack from two directions in space. The stacked battery cells are clamped and positioned, the battery cell pressing mechanism 13 is arranged corresponding to the support platform 12, the battery cell pressing mechanism 13 applies a pressing force from the upper side of the support platform 12 in the direction of the support platform 12, and the battery cell clamping mechanism 14 clamps the multiple stacked battery cells from both sides of the support platform 12 along the direction of the battery cell stacking; the battery cell stacking tray 1 of this embodiment is used to provide space for battery cell stacking, and the battery cells are placed on the battery cell stacking tray 1 after being identified and adjusted in direction by the robot gripper, so as to realize secondary stacking of the battery cells, and the battery cell pressing mechanism 13 and the battery cell clamping mechanism 14 can position and clamp the stacked battery cells in two directions in space, so as to ensure the stacking quality of the battery cells after stacking.

[0055] Specifically, in this embodiment, it is necessary to use a manipulator to clamp and carry the battery cell and place the battery cell on the support table 12. Therefore, a certain carrying space needs to be set to ensure that the manipulator can place the battery cell on the support table 12. Generally, the manipulator is used to clamp the battery cell and move it to the top of the support table 12, and the battery cell is placed on the support table 12 from the top of the support table 12. However, the battery cell pressing mechanism 13 of this embodiment also applies a pressing force from the top of the battery cell. Therefore, when setting the battery cell pressing mechanism 13, it is necessary to consider the need to apply a pressing force on the top of the battery cell, and at the same time ensure that it does not affect the manipulator's handling of the battery cell;

[0056] To solve the above problems, refer to Figure 2As shown, the battery cell pressing mechanism 13 is slidably arranged on the plate body 11, and includes a battery cell pressing rod 131, a pressing device 132 and an avoidance device 133; the battery cell pressing rod 131 is extended along the battery cell stacking direction, and the battery cell pressing rod 131 can be slidably arranged above the support platform 12; the avoidance device 133 supports the battery cell pressing rod 131, provides an avoidance space for the battery cell pressing rod 131, and can drive the battery cell pressing rod 131 to slide, and the battery cell pressing rod 131 can slide to the support platform 12, a battery cell accommodating space is formed between the battery cell pressing rod 131 and the support platform 12, and the battery cell pressing rod 131 can also move from above the support platform 12 to avoid the support platform 12, and move out of the transportation space above the support platform 12 without affecting the robot arm's clamping and transportation of the battery cells; when the battery cell pressing rod 131 moves to above the support platform 12, the pressure device 132 drives the battery cell pressing rod 131 to abut against the battery cells placed on the support platform 12, and applies pressure to the battery cells.

[0057] Specifically, in the present embodiment, since the battery cell pressing rod 131 is used to press and fix multiple battery cells along the battery cell stacking direction, the battery cell pressing rod 131 needs to have a certain length. In order to ensure the support of the battery cell pressing rod 131 and enable the battery cell pressing rod 131 to provide sufficient pressing force, the battery cell pressing mechanism 13 is provided to include two pressing devices 132 and two avoiding devices 133. The two pressing devices 132 and the avoiding devices 133 are respectively arranged at both ends of the battery cell pressing rod 131 to jointly support the same battery cell pressing rod 131. The two pressing devices 132 and the avoiding devices 133 synchronously drive the same battery cell pressing rod 131 to complete the pressing and avoiding actions.

[0058] Specifically, in order to provide clamping force to both ends of a single battery cell and prevent the battery cell from tilting when clamping force is applied on one side, in the present embodiment, two sets of battery cell clamping mechanisms 13 are provided on the plate body 11. The two sets of battery cell clamping mechanisms 13 are arranged along the extension direction of the single battery cell, and clamping pressure is applied to both ends of the single battery cell stacked on the support platform 12 at the same time.

[0059] Reference Figure 3As shown, the pressure-applying device 132 includes: an adapter plate 1321, a guide rod 1322 and an elastic member 1323, the adapter plate 1321 is a U-shaped plate, the adapter plate 1321 has a U-shaped groove, the guide rod 1322 is arranged in the U-shaped groove, the guide rod 1322 is extended in the vertical direction, the battery cell pressure rod 131 and the elastic member 1323 are both sleeved on the guide rod 1322, the battery cell pressure rod 131 slides on the guide rod 1322 along the extension direction of the guide rod 1322, the battery cell pressure rod 131 can move in the direction close to or away from the support platform 12, the elastic member 1323 is elastically pressed and arranged above the battery cell pressure rod 131, and the elastic member 1323 provides the battery cell pressure rod 131 with elastic pressure in the direction of the support platform 12, thereby realizing the tight pressing and fixing of the battery cell; the avoidance The avoiding device 133 includes an avoiding support frame 1331 arranged on the plate body 11, and a slide rail 1332 extending in the horizontal direction is arranged on the avoiding support frame 1331, and the adapter plate 1321 drives the battery cell pressure rod 131 to slide on the slide rail 1332, so that it can respectively complete the action of sliding to the top of the support platform 12, forming a battery cell accommodating space between the battery cell pressure rod 131 and the support platform 12, and the action of moving from the top of the support platform 12 to avoid the support platform 12, and moving out of the transportation space above the support platform 12. In addition, the avoiding device 133 also includes a supporting roller 1333, and the supporting roller 1333 includes a supporting block connected to the battery cell pressure rod 131 and a roller abutting against the plate body 11, and the supporting roller 1333 supports the battery cell pressure rod 131 to slide on the plate body 11.

[0060] Reference Figure 4 As shown, the battery cell clamping mechanism 14 includes: a slide 141 and two clamping blocks 142 protruding from the slide 141 and sliding on the slide 141 along the extension direction of the slide 141; wherein, the slide 141 has the same extension direction as the support platform 12, and the slide 141 passes through the support platform 12. In the present embodiment, the support platform 12 is a plurality of strip support blocks, and the slide 141 is arranged in the gap between the plurality of strip support blocks. In order not to affect the support of the battery cell by the support platform 12, the top surface of the slide 141 is arranged lower than the support surface of the support platform 12; the two clamping blocks 142 are higher than the support platform 12, and the battery cells are stacked between the two clamping blocks 142. After the battery cells are stacked, the two clamping blocks 142 are respectively pressed against the two ends of the stacked battery cells. Example 2

[0061] This embodiment further provides a battery cell stacking device based on the above embodiment 1. Figure 5As shown, the battery cell stacking equipment includes a machine platform, which can carry the above-mentioned battery cell stacking tray 1, and is also provided with: a battery cell positioning component 2, a pressing mechanism unlocking component 3 and a clamping mechanism unlocking component 4, the battery cell positioning component 2 is arranged on both sides of the support platform 12, and the battery cell positioning component 2 cooperates with the battery cell pressing mechanism 13 and the battery cell clamping mechanism 14 to provide positioning space from another direction in the space during the battery cell stacking process while restricting the positioning of the battery cells, the pressing mechanism unlocking component 3 is arranged on the side of the battery cell stacking tray and cooperates with the battery cell pressing mechanism 13, and the clamping mechanism unlocking component 4 is arranged below the battery cell stacking tray and cooperates with the battery cell clamping mechanism 14. In the above-mentioned embodiment 1, Although the battery cell pressing mechanism 13 and the clamping mechanism unlocking component 4 are provided, no driving force is provided to drive the battery cell pressing mechanism 13 and the clamping mechanism unlocking component 4 to work. When the battery cell stacking tray 1 disclosed in the above-mentioned embodiment 1 is used alone to position the battery cells, an external force is required to drive the battery cell pressing mechanism 13 and the clamping mechanism unlocking component 4 to complete the action. Therefore, in this embodiment, the pressing mechanism unlocking component 3 is used to cooperate with the battery cell pressing mechanism 13 to provide the battery cell pressing mechanism 13 with a driving force for avoiding and pressing, which can drive the battery cell pressing mechanism 13 to complete the avoiding and pressing actions. The clamping mechanism unlocking component 4 is used to cooperate with the battery cell clamping mechanism 14 to provide the battery cell clamping mechanism 14 with a clamping driving force, which can drive the battery cell clamping mechanism 14 to complete the clamping action.

[0062] Reference Figure 6 As shown, the battery cell positioning assembly 2 includes: a positioning drive source 21 and a positioning plate 22, a toothing 23 and a positioning pin 24, the fixed end of the positioning drive source 21 is arranged on the machine platform, the execution end of the positioning drive source 21 is connected to the positioning plate 22, and the positioning plate 22 is driven by the positioning drive source 21 to move toward or away from the support platform 12. In this embodiment, two groups of battery cell positioning assemblies 2 are arranged on both sides of the support platform 12, and a space for stacking battery cells is formed between the two positioning plates 22 in the two groups of battery cell positioning assemblies 2, and the battery cells are stacked and placed between the two positioning plates 22, and the end of the positioning plate 22 is driven by the positioning drive source 21 to abut against the side of the battery cell, and a positioning clamping force is synchronously applied to the battery cell from both sides of the battery cell;

[0063] Specifically, the cell positioning assembly 2 further includes a tooth 23, which is disposed at the end of the positioning plate 22, and the tooth 23 includes a plurality of protruding tooth structures, and a cell positioning space for placing a cell is formed between two adjacent tooth structures;

[0064] Specifically, in this embodiment, in order to ensure the accuracy of the position of the positioning plate 22 relative to the support platform 12, thereby ensuring the accuracy of the battery cell stacking position, a positioning pin 24 is also provided on the positioning plate 22, and the positioning pin 24 is driven by the positioning plate 22, and a positioning hole that cooperates with the positioning pin 24 is provided on the battery cell stacking tray 1, and the relative position of the positioning plate 22 and the support platform 12 is accurately limited by the pin hole cooperation.

[0065] Reference Figure 7 The clamping mechanism unlocking assembly 3 comprises a vertical driving source 31, a horizontal driving source 32, an unlocking block 33 driven by the vertical driving source 31 and the horizontal driving source 32, and an unlocking pin 34 arranged on the unlocking block 33; an unlocking hole for inserting the unlocking pin 34 is arranged on the battery cell clamping mechanism 13, and the clamping mechanism unlocking assembly 3 provides the battery cell clamping mechanism 13 with a driving force for avoiding and pressing;

[0066] The unlocking action of the clamping mechanism unlocking assembly 3 of the present embodiment in cooperation with the battery cell clamping mechanism 13 is as follows: after the battery cells are stacked, first, the horizontal driving source 32 is used to drive the unlocking pin 34 to move in the direction of the battery cell stacking tray 1, so that the unlocking pin 34 moves to the bottom of the unlocking hole, and then the vertical driving source 31 drives the unlocking pin 34 to be inserted into the unlocking hole, and the vertical driving source 31 continues to drive the unlocking block 33 to move upward, thereby driving the battery cell pressing rod 131 to move upward, so that the height of the battery cell pressing rod 131 is higher than the battery cell, and then the horizontal driving source 32 is used to drive the battery cell pressing rod 131 to move horizontally, so that the battery cell pressing rod 131 moves to the top of the battery cell, and the vertical driving source 31 is turned on again to move downward, so that the battery cell pressing rod 131 presses against the battery cell, and finally, the unlocking pin 34 is continuously driven to be pulled out of the unlocking hole by the vertical driving source 31, and the horizontal driving source 32 drives the unlocking pin 34 to reset;

[0067] Specifically, the vertical driving source 31 and the horizontal driving source 32 are both cylinder structures, and the clamping mechanism unlocking assembly 3 also includes a buffer for limiting the stroke of the vertical driving source 31 and the horizontal driving source 32, and a proximity detection sensor for detecting whether the unlocking block 33 moves into place.

[0068] Reference Figure 8 As shown, the clamping mechanism unlocking assembly 4 includes a clamping driving source 41, an unlocking driving source 42, and an unlocking terminal 43 driven by the clamping driving source 41 and the unlocking driving source 42; an unlocking hole is provided on the battery cell clamping mechanism 14, and the unlocking driving source 42 drives the unlocking terminal 43 to be inserted into the unlocking hole, so that the clamping mechanism unlocking assembly 4 is connected to the battery cell clamping mechanism 14, and the clamping driving source 41 provides a clamping driving force for the battery cell clamping mechanism 14;

[0069] The unlocking action of the clamping mechanism unlocking component 4 in cooperation with the battery cell clamping mechanism 14 of this embodiment is as follows: after the battery cells are stacked, first, the clamping drive source 41 is used to drive the unlocking terminal 43 to move to the bottom of the unlocking hole, and then, the unlocking drive source 42 is used to drive the unlocking terminal 43 to be inserted into the unlocking hole, thereby realizing the connection between the unlocking terminal 43 and the battery cell clamping mechanism 14, and then the clamping drive source 41 is used again to drive the clamping block to complete the clamping action of the battery cell. After clamping and positioning, the unlocking terminal 43 is driven to be pulled out of the unlocking hole by the unlocking drive source 42, thereby realizing the separation of the unlocking terminal 43 from the battery cell clamping mechanism 14, and finally, the clamping drive source 41 drives the clamping block to reset.

[0070] Specifically, the clamping drive source 41 and the unlocking drive source 42 are both cylinder structures, and the clamping mechanism unlocking component 4 also includes a buffer for limiting the stroke of the clamping drive source 41 and the unlocking drive source 42, and a proximity detection sensor for detecting whether the unlocking end 43 moves into place.

[0071] In this embodiment, the pressing mechanism unlocking assembly 3 and the clamping mechanism unlocking assembly 4 are independent structures, and the two can work synchronously, thereby improving work efficiency.

[0072] Specifically, the battery cell stacking device of the present embodiment is arranged on the production line, and the battery cell stacking tray 1 is transferred from the previous station to the battery cell stacking device of the present invention. After the battery cells are stacked, they need to be transported out of the device. Therefore, in order to facilitate the docking of the battery cell stacking device of the present embodiment with the production line and realize the transportation of materials, a transmission component 5 is also provided in the present embodiment. The transmission component 5 is arranged on the machine platform. Fig. 9 As shown, the transmission component includes a transmission drive source 51 and a conveyor belt 52 driven by the transmission drive source 51, and the battery cell stacking tray 1 is transported on the conveyor belt 52. Specifically, in this embodiment, two parallel output belts 52 are provided. In order to facilitate the detachment of the battery cell stacking tray 1 from the conveyor belt 52, a lifting component 6 is also provided between the two parallel conveyor belts 52.

[0073] Reference Fig.10 As shown, the lifting assembly 6 includes a lifting driving source 61 and a lifting plate 62 driven by the lifting driving source 61 to move toward or away from the battery cell stacking tray 1. The lifting driving source 61 drives the lifting plate 62 to lift the battery cell stacking tray 1 from the conveyor belt 52, so as to separate the battery cell stacking tray 1 from the conveyor belt 52, and then complete the stacking and positioning action of the battery cells.

[0074] Specifically, in the process of lifting, in order to prevent the battery stacking tray 1 from sliding relative to the lifting plate 62, a limit pin 63 is further provided on the lifting plate 62, and a limit hole matching the limit pin 63 is provided on the battery stacking tray 1, and the relative position of the battery stacking tray 1 and the lifting plate 62 is limited by the cooperation of the pin hole;

[0075] Moreover, in the present embodiment, the stroke of the lifting drive source 61 does not need to be too long, and the battery cells need to be stacked during lifting. Therefore, it is not desirable to directly use the lifting drive source 614 to drive the lifting plate 62. After the battery cells are stacked, the load of the lifting drive source 61 is large, which is not conducive to long-term stable use. Therefore, in the present embodiment, the lifting drive source 61 is placed horizontally, and the lifting drive source 61 is driven by an inclined block 64 to move horizontally. The lifting plate 62 slides on the inclined block 64 along the inclination angle of the inclined block 64, thereby changing the height of the lifting plate 62. In this way, when the lifting plate 62 is in a lifting state, the force of the lifting plate 62 acts on the inclined block 64, rather than always acting on the lifting drive source 61.

[0076] Specifically, since the battery cell stacking and battery cell positioning of the present embodiment are very precise, the basic position of the battery cell stacking tray 1 on the battery cell stacking device is very important. The battery cell stacking tray 1 is transmitted to the device of the present embodiment through the transmission component 5. If the initial position of the battery cell stacking tray 1 is tilted, then the subsequent stacking and positioning are inaccurate. Therefore, in the present embodiment, in order to limit the initial position of the battery cell stacking tray 1, the present embodiment also includes a tray positioning component 7, which is arranged on both sides of the battery cell stacking tray 1, with reference to Fig.11 As shown, the tray positioning assembly 7 includes a tray clamping drive source 71 and a clamping block 72 driven by the tray clamping drive source 71 to press against the battery cell stacking tray 1. At least two groups of tray positioning assemblies 7 are provided, and the clamping blocks 72 in the two groups of tray positioning assemblies 7 jointly clamp the battery cell stacking tray 1. In the present embodiment, four groups of tray positioning assemblies 7 are provided corresponding to the four corners of the battery cell stacking tray 1 to position the four corners of the battery cell stacking tray.

[0077] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A battery cell stacking device, characterized in that: include: A machine and a battery cell stacking tray, wherein the battery cell stacking tray comprises: plate body; A support platform, arranged on the plate body, for stacking the battery cells; A battery cell pressing mechanism is slidably arranged on the plate body, and comprises a battery cell pressing rod, a pressure device and an avoidance device; the battery cell pressing rod is arranged above the support platform, and a battery cell accommodating space is reserved between the battery cell pressing rod and the support platform; the pressure device drives the battery cell pressing rod to abut against the battery cell placed on the support platform, and applies pressure to the battery cell; the avoidance device supports the battery cell pressing rod, provides an avoidance space for the battery cell pressing rod, and can drive the battery cell pressing rod to slide, and the battery cell pressing rod slides in the avoidance space driven by the avoidance device, and can avoid the support platform; The battery cell pressing mechanism includes two pressing devices and two avoiding devices, the two pressing devices and the avoiding devices are respectively arranged at both ends of the battery cell pressing rod to jointly support the same battery cell pressing rod, and the two pressing devices and the avoiding devices synchronously drive the same battery cell pressing rod to complete the pressing and avoiding actions; The pressure device comprises: an adapter plate, a guide rod and an elastic member, the adapter plate is a U-shaped plate, the adapter plate has a U-shaped slide groove, the guide rod is arranged in the U-shaped slide groove, the guide rod is extended in the vertical direction, the battery cell pressure rod and the elastic member are both sleeved on the guide rod, the battery cell pressure rod slides on the guide rod along the extension direction of the guide rod, the battery cell pressure rod can move in the direction close to or away from the support platform, the elastic member is elastically pressed and arranged above the battery cell pressure rod, and the elastic member provides the battery cell pressure rod with elastic pressure in the direction of the support platform, thereby realizing the tight pressing and fixing of the battery cell; The avoidance device includes an avoidance support frame arranged on the plate body, a slide rail extending in the horizontal direction is arranged on the avoidance support frame, the adapter plate drives the battery cell pressure rod to slide on the slide rail, the battery cell pressure rod can slide to the top of the support platform, and a battery cell accommodating space is formed between the battery cell pressure rod and the support platform, the battery cell pressure rod moves from above the support platform to avoid the support platform, and moves above the support platform to avoid the transportation space, and the avoidance device is also provided to include a support roller, the support roller includes a support block connected to the battery cell pressure rod and a roller abutting against the plate body, and the support roller supports the battery cell pressure rod to slide on the plate body; A battery cell clamping mechanism is arranged on the plate body, and the battery cell clamping mechanism clamps the stacked battery cells from both sides of the support platform along the direction of battery cell stacking; The battery cell clamping mechanism comprises: a slide and two clamping blocks protruding from the slide and sliding on the slide along the extension direction of the slide; wherein the slide and the support platform have the same extension direction, the slide passes through the support platform, the support platform is a plurality of strip support blocks, the slide is arranged in the gap between the plurality of strip support blocks, and the top surface of the slide is arranged lower than the support surface of the support platform; the two clamping blocks are higher than the support platform, the battery cells are stacked between the two clamping blocks, and after the battery cells are stacked, the two clamping blocks are respectively pressed against the two ends of the stacked battery cells; The machine is also provided with: The battery cell positioning assembly is arranged on both sides of the support platform to provide a positioning space for stacking the battery cells on the support platform; A pressing mechanism unlocking assembly is arranged on the side of the battery cell stacking tray and cooperates with the battery cell pressing mechanism. The pressing mechanism unlocking assembly includes a vertical driving source, a horizontal driving source, an unlocking block driven by the vertical driving source and the horizontal driving source, and an unlocking pin arranged on the unlocking block; an unlocking hole for inserting the unlocking pin is arranged on the battery cell pressing mechanism, and the pressing mechanism unlocking assembly provides the battery cell pressing mechanism with a driving force for avoiding and pressing; The clamping mechanism unlocking assembly is arranged below the battery cell stacking tray and cooperates with the battery cell clamping mechanism, including a clamping drive source, an unlocking drive source, and an unlocking terminal driven by the clamping drive source and the unlocking drive source; an unlocking hole is provided on the battery cell clamping mechanism, and the unlocking drive source drives the unlocking terminal to be inserted into the unlocking hole, so that the clamping mechanism unlocking assembly is connected to the battery cell clamping mechanism, and the clamping drive source provides a clamping driving force for the battery cell clamping mechanism.

2. The battery cell stacking device according to claim 1, characterized in that: The battery cell positioning assembly comprises: Locate the drive source; A positioning plate, driven by the positioning drive source to move toward or away from the support platform, wherein an end of the positioning plate abuts against a side surface of the battery cell placed on the support platform; Insert teeth are arranged at the end of the positioning plate, and a battery cell positioning space is formed on the insert teeth; A positioning pin is arranged on the positioning plate and driven by the positioning plate; a positioning hole cooperating with the positioning pin is arranged on the battery cell stacking tray.

3. The battery cell stacking device according to claim 1, characterized in that: It also includes a transmission component, which is arranged on the machine platform. The transmission component includes a transmission drive source and a transmission belt driven by the transmission drive source. The battery cell stacking tray is transmitted on the transmission belt.

4. The battery cell stacking device according to claim 1, characterized in that: It also includes a lifting assembly, which is arranged below the transmission assembly and includes: Lifting drive source; A lifting plate is driven by the lifting driving source to move toward or away from the battery cell stacking tray; A limit pin is arranged on the lifting plate, and a limit hole matching the limit pin is arranged on the battery cell stacking tray.

5. The battery cell stacking device according to claim 1, characterized in that: It also includes a tray positioning assembly, which is arranged on both sides of the battery cell stacking tray, including a tray clamping drive source and a clamping block driven by the tray clamping drive source to press against the battery cell stacking tray. At least two groups of tray positioning assemblies are arranged, and the clamping blocks in the two groups of tray positioning assemblies jointly clamp the battery cell stacking tray.

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