Battery stacking device and battery stacking method

Abstract

The present invention provides a battery stacking device and a stacking method. The battery stacking device includes a stacking mechanism, a moving mechanism and a control mechanism. The stacking mechanism includes a support frame, and a plurality of support plates are slidably connected to the support frame; the moving mechanism includes a servo drive cylinder and two execution frames, and clamping blocks are connected to the surfaces of the two execution frames that are arranged opposite to each other, and a position detection device is connected to the clamping blocks. The clamping blocks can move along a first direction on the execution frames, and the two clamping blocks can move toward or away from each other. The servo drive cylinder is arranged below the support frame, and a push plate is connected to the piston rod of the servo drive cylinder. The control mechanism can control the moving distance of the piston rod of the servo drive cylinder according to the detection position of the position detection device. The present invention ensures the accuracy of the spacing between each two adjacent single cells in the stack, and reduces the risk of the single cell being offset during movement.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a battery stacking device and a stacking method. Background Art

[0002] A single cell usually has a top surface, a bottom surface and a side surface sandwiched between the top surface and the bottom surface. For single cells with electrodes arranged on the side surfaces, it is necessary to avoid displacement of each single cell during the movement process during the stacking operation, and when bonding, the distance between two adjacent single cells must be accurately determined. Summary of the invention

[0003] An object of the present invention is to provide a battery stacking device that ensures the accuracy of the interval between every two adjacent single batteries in the stack.

[0004] To achieve the above object, the present invention provides a battery stacking device, comprising:

[0005] A stacking mechanism, comprising a support frame, on which a plurality of support plates arranged side by side are slidably connected along a first direction;

[0006] A moving mechanism, comprising a servo drive cylinder and an execution frame arranged on both sides of the support frame along the second direction, clamping blocks are connected to the oppositely arranged surfaces of the two execution frames, and a position detection device is connected to the clamping block, the clamping block can move along the first direction on the execution frame, and the two clamping blocks can move toward or away from each other, the two clamping blocks are configured to clamp on the opposite sides of the single battery, the position detection device is configured to detect the initial position of the single battery, the servo drive cylinder is arranged below the support frame, and a push plate is connected to the piston rod of the servo drive cylinder, and the push plate is configured to be connected to the single battery;

[0007] a control mechanism electrically connected to the position detection device and the servo drive cylinder, the control mechanism being configured to control a moving distance of a piston rod of the servo drive cylinder according to a detection position of the position detection device;

[0008] The second direction and the first direction are located in the same plane, and the second direction is perpendicular to the first direction.

[0009] Compared with the prior art, the above technical solution has the following advantages:

[0010] The battery stacking device of the present invention detects the initial position of the single cell by a position detection device, so that the control mechanism can accurately determine the initial moving position of the single cell, thereby controlling the corresponding movement distance of the piston rod of the servo drive cylinder, and then the push plate, driven by the servo drive cylinder, accurately pushes the single cell to move a preset distance along the first direction, effectively ensuring the moving distance of the single cell, thereby ensuring the accuracy of the spacing between each adjacent two stacked single cells; and during the movement of the single cell, the two clamping blocks limit the single cell, effectively reducing the risk of the single cell being offset during the movement.

[0011] Another object of the present invention is to provide a battery stacking method using the above-mentioned battery stacking device.

[0012] To achieve the above object, the present invention provides a battery stacking method, which uses the above battery stacking device, and the battery stacking method comprises:

[0013] Place the single battery on the support plate;

[0014] Moving two clamping blocks to opposite sides of the single battery and clamping the single battery;

[0015] The control mechanism obtains the target position according to the feedback information of the position detection device, and controls the servo drive cylinder to push the single battery to move to the target position along the first direction;

[0016] Repeat the above steps until multiple single batteries are stacked into one.

[0017] Compared with the prior art, the above technical solution has the following advantages:

[0018] The battery stacking method of the present invention adopts the above-mentioned battery stacking device, thereby being able to effectively ensure the accuracy of the spacing between each two adjacent single batteries in the stack. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0020] Figure 1 is a schematic structural diagram of a battery stacking device of the present invention;

[0021] Figure 2 yes Figure 1 The front view structural diagram of the battery stacking device shown;

[0022] Figure 3 It is a structural schematic diagram of the stacking mechanism;

[0023] Figure 4It is a schematic diagram of the connection structure between the servo drive cylinder and the push plate;

[0024] Figure 5 It is a schematic diagram of the connection structure between the base and the servo drive cylinder;

[0025] Figure 6 is a flow chart of the battery stacking method of the present invention.

[0026] Description of Figure Numbers:

[0027] 10. Stacking mechanism;

[0028] 11. Support frame;

[0029] 12. Support plate;

[0030] 13. Limiting frame;

[0031] 14. Retractable guide column;

[0032] 15. Mobile board;

[0033] 16. Pressing device; 161. Upper pressing plate; 162. Lower pressing plate; 163. Connecting rod; 164. Pressing spring;

[0034] 20. Mobile mechanism;

[0035] 21. Servo drive cylinder;

[0036] 22. Execution frame; 221. Clamping block; 2211. Position detection device; 222. Toggle plate;

[0037] 23, push plate; 231, first plate; 232, second plate;

[0038] 24. Mobile slide rail;

[0039] 25. Move the slider;

[0040] 26. Lifting drive cylinder;

[0041] 27. Reinforcement plate;

[0042] 30. Base;

[0043] 31. Install beams;

[0044] 32. Moving roller;

[0045] 100. Single cell battery. DETAILED DESCRIPTION

[0046] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0047] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0048] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0049] Embodiment 1

[0050] like Figure 1 and Figure 2 As shown, the present invention provides a battery stacking device, which is suitable for stacking single cells 100 with conductive row connection surfaces arranged on the side surfaces. Specifically, the single cell 100 has a top surface, a bottom surface, and a side surface sandwiched between the top surface and the bottom surface. The side surfaces of the single cell 100 include two oppositely arranged first side surfaces and two oppositely arranged second side surfaces. The area of ​​the first side surface is smaller than the area of ​​the second side surface. The conductive row is connected to the first side surface, that is, the first side surface is the conductive row connection surface, and the length of the second side surface is greater than or equal to 600 mm. In addition, the thickness of the shell of the single cell 100 is 0.2 mm to 0.4 mm. Preferably, the shell of the single cell 100 is an aluminum shell with a thickness of 0.3 mm. The battery stacking device includes a stacking mechanism 10, a moving mechanism 20, and a driving mechanism, wherein:

[0051] like Figure 3 As shown, the stacking mechanism 10 includes a support frame 11. Specifically, the support frame 11 is a hollow frame structure formed by a plurality of support beams to reduce the overall weight of the support frame 11. The support frame 11 is slidably connected to a plurality of support plates 12 arranged side by side along a first direction X, that is, the plurality of support plates 12 are connected to the support frame 11 side by side along the first direction X and can slide relative to the support frame 11 along the first direction X. That is, the support frame 11 is connected to a plurality of support plates 12 arranged side by side along the first direction X, and each support plate 12 can slide relative to the support frame 11 along the first direction X. 1 reciprocates along the first direction X, the support plate 12 is used to support the single battery 100, the bottom surface of the single battery 100 is in contact with the support plate 12, the first side surface of the single battery extends along the first direction X, and the second side surface of the single battery 100 is perpendicular to the first direction X. Preferably, end plates are respectively connected to both ends of the support frame 11 along the first direction X, that is, two end plates are arranged side by side with each support plate 12, and the two end plates can limit the single battery 100 arranged on the support frame 11 to prevent the single battery 100 from tipping over;

[0052] like Figure 1 , Figure 2 and Figure 4As shown, the moving mechanism 20 includes a servo drive cylinder 21 and an execution frame 22 arranged on both sides of the support frame 11 along the second direction Y, that is, the support frame 11 is located in the middle of the two execution frames 22, and the clamping blocks 221 are connected to the oppositely arranged surfaces of the two execution frames 22, that is, the two clamping blocks 221 are arranged opposite to each other, and the clamping blocks 221 are connected to the position detection device 2211. The clamping blocks 221 can move along the first direction X on the execution frame 22, and the two clamping blocks 221 can move toward or away from each other, that is, the clamping blocks 221 can move along the second direction Y, and the two clamping blocks 221 are configured to be clamped on the opposite sides of the single battery 100, that is, the two clamping blocks 221 can be respectively connected to the two first side surfaces of the single battery 100. Preferably, along the second direction In a direction X, the execution frame 22 and the support frame 11 have substantially the same length, so that the clamping block 221 can move the same distance as the single battery 100, and the position detection device 2211 is configured to detect the initial position of the single battery 100; the servo drive cylinder 21 is arranged below the support frame 11, and the servo drive cylinder 21 can be a servo electric cylinder or a servo air cylinder, and a push plate 23 is connected to the piston rod of the servo drive cylinder 21, and the push plate 23 is configured to be connected to the single battery 100, and the servo drive cylinder 21 is configured to drive the push plate 23 to drive the single battery 100 to move a preset distance along the first direction X, and the servo drive cylinder 21 can accurately control the moving distance of the push plate 23, thereby accurately controlling the moving distance of the push plate 23 pushing the single battery 100;

[0053] A control mechanism, which is electrically connected to the position detection device 2211 and the servo drive cylinder 21. The control mechanism is configured to control the moving distance of the piston rod of the servo drive cylinder 21 according to the detection position of the position detection device 2211. Specifically, when the two clamping blocks 221 clamp the single battery 100, the position detection device 2211 can obtain the position of the single battery 100 on the support frame 11, and send the position information to the control mechanism. After receiving the detection position information sent by the position detection device 2211, the control mechanism drives the moving distance of the piston rod of the servo drive cylinder 21 according to the preset moving distance, thereby accurately moving the single battery 100 by the preset distance;

[0054] The second direction Y and the first direction X are located in the same plane, and the second direction Y is perpendicular to the first direction X.

[0055] It should be noted that the control mechanism can be either a PLC controller or a control program set in an electronic device.

[0056] Specifically, during the stacking operation, along the first direction X, the plurality of support plates 12 disposed on the support frame 11 are respectively named as the first support plate 12, the second support plate 12, the third support plate 12, ... the Nth support plate 12, where N is a natural number;

[0057] The servo drive cylinder 21 drives the push plate 23 to move between the first support plate 12 and the second support plate 12;

[0058] A single battery 100 is placed on the first support plate 12, and two clamping blocks 221 are driven to move along the first direction X to the opposite sides of the single battery 100, and then the two clamping blocks 221 are driven to move relative to each other to firmly clamp the two opposite sides (first sides) of the single battery 100. At the same time, the position detection device 2211 detects the initial position of the single battery 100 and sends the detected position information to the control mechanism, which sets the first distance of movement of the piston rod of the servo drive cylinder 21 according to the initial position information of the single battery 100;

[0059] The servo drive cylinder 21 drives the push plate 23 to move a first distance along the first direction X according to the instruction of the control mechanism, and the push plate 23 pushes the single battery 100 to move to the first set position, and then the two clamping blocks 221 move along the second direction Y to release the single battery 100;

[0060] The servo drive cylinder 21 drives the push plate 23 to move between the second support plate 12 and the third support plate 12;

[0061] A single battery 100 is placed on the second support plate 12, and the two clamping blocks 221 are driven to move along the first direction X to the opposite sides of the single battery 100, and then the two clamping blocks 221 are driven to move relative to each other to firmly clamp the opposite sides of the single battery 100. At the same time, the position detection device 2211 detects the initial position of the single battery 100 and sends the detected position information to the control mechanism, and the control mechanism sets the second moving distance of the piston rod of the servo drive cylinder 21 according to the initial position information of the single battery 100;

[0062] The servo drive cylinder 21 drives the push plate 23 to move a second distance along the first direction X according to the instruction of the control mechanism, and the push plate 23 pushes the single battery 100 to move to the second set position. At this time, the two single batteries 100 are stacked together, and then the two clamping blocks 221 are moved along the second direction Y to release the single battery 100;

[0063] The above operation is repeated until all the single batteries 100 to be stacked are stacked together to complete the stacking operation.

[0064] The battery stacking device of the present invention detects the initial position of the single battery 100 through the position detection device 2211, so that the control mechanism can accurately determine the initial moving position of the single battery 100, thereby controlling the corresponding movement distance of the piston rod of the servo drive cylinder 21, and then the push plate 23, driven by the servo drive cylinder 21, accurately pushes the single battery 100 to move a preset distance along the first direction X, effectively ensuring the moving distance of the single battery 100, thereby ensuring the accuracy of the spacing between each adjacent two stacked single batteries 100; and during the movement of the single battery 100, the two clamping blocks 221 limit the single battery 100, effectively reducing the risk of the single battery 100 being offset during the movement.

[0065] In one embodiment of the present invention, an execution frame 22 is connected to an execution slide rail, which extends along a first direction X. An execution slider is slidably connected to the execution slide rail, and a clamping block 221 is connected to the execution slider. When the push plate 23 pushes the single cell 100 to move, the clamping block 221 can move smoothly and synchronously with the single cell 100 under the cooperation of the execution slide rail and the execution slider, thereby improving the stability of the single cell 100 during the movement.

[0066] In a specific example of this embodiment, the clamping block 221 is connected to the execution slider through a servo electric cylinder, and the servo electric cylinder can accurately drive the clamping block 221 to move along the second direction Y, so that the two clamping blocks 221 can stably clamp the single cell 100 without damaging the single cell 100.

[0067] In another specific example of this embodiment, the clamping block 221 is connected to the execution slider through a screw. By adjusting the length of the screw screwed into the clamping block 221 and the execution slider, the clamping block 221 is driven to move along the second direction Y, which can also enable the two clamping blocks 221 to stably clamp the single battery 100.

[0068] In another embodiment of the present invention, a tenon is provided on the surface of the clamping block 221 facing away from the support frame 11, and a tenon groove is provided on the execution frame 22, the tenon groove extends along the first direction XX, the tenon is inserted into the tenon groove and can slide along the tenon groove, when the push plate 23 pushes the single cell 100 to move, the clamping block 221 can move smoothly and synchronously with the single cell 100 with the cooperation of the tenon and the tenon groove, and can also improve the stability of the single cell 100 during the movement.

[0069] In a specific example of this embodiment, the clamping block 221 is connected to the execution slider through a servo electric cylinder, and the servo electric cylinder can accurately drive the clamping block 221 to move along the second direction Y, so that the two clamping blocks 221 can stably clamp the single cell 100 without damaging the single cell 100.

[0070] In another specific example of this embodiment, the clamping block 221 is connected to the execution slider through a screw. By adjusting the length of the screw screwed into the clamping block 221 and the execution slider, the clamping block 221 is driven to move along the second direction Y, which can also enable the two clamping blocks 221 to stably clamp the single battery 100.

[0071] In one embodiment of the present invention, the position detection device 2211 is a CCD camera, which has the advantages of small size, light weight, no influence of magnetic field, and resistance to vibration and impact, thereby ensuring the accuracy of detecting the initial position of the single battery 100.

[0072] Furthermore, the position of the CCD camera corresponds to the position of the pole of the single cell 100. Such a structure ensures that the distance between the poles of each adjacent two stacked single cells 100 is the same even when the single cell 100 is tilted in the initial position or the surface is uneven, so as to facilitate the subsequent conductive bar installation operation.

[0073] Furthermore, the single cell 100 includes a top surface, a bottom surface and a side surface clamped between the top surface and the bottom surface, the side surface has two oppositely arranged first side surfaces and two oppositely arranged second side surfaces, the area of ​​the first side surface is smaller than the area of ​​the second side surface, that is, the first side surface is a small side surface and the second side surface is a large side surface, the first side surface is configured to be connected to the clamping block 221, and the pole is arranged on the first side surface. With such a structure, a groove can be set on the surface of the clamping block 221 facing the single cell 100, and the CCD camera can be embedded in the groove, so that the installation of the CCD camera becomes simple and convenient.

[0074] Further, if Figure 1 , Figure 2 and Figure 5As shown, the battery stacking device also includes a base 30, which is a base structure formed by splicing a plurality of support beams to reduce the overall weight of the base 30. Two mounting beams 31 arranged side by side and at intervals are provided on the base 30 along the second direction Y. The support frame 11 is connected to the two mounting beams 31. Preferably, along the first direction X, the distance between the two mounting beams 31 is equal to or slightly less than the length of the support frame 11, so that the support beam can be stably installed on the two mounting beams 31 without affecting the movement of the support plate 12. The moving mechanism 20 is connected to the base 30, and the two execution frames 22 are located on both sides of the mounting beams 31 along the second direction Y. With this structure, the mounting beams 31 can be used to position the installation of the execution frames 22, so that the installation of the two execution frames 22 becomes simple and convenient. The servo drive cylinder 21 is located between the two mounting beams 31, and the two mounting beams 31 can limit the moving stroke of the piston rod of the servo drive motor to ensure that the push plate 23 will not push the single battery 100 out of the stacking mechanism 10.

[0075] Going further, Figure 1 , Figure 2 and Figure 5 As shown, the bottom surface of the base 30 is connected with a moving roller 32 for movement, so as to drive the base 30 to drive the stacking mechanism 10 and the moving mechanism 20 to move synchronously.

[0076] It should be noted that the position detection device 2211 can also be a position sensor.

[0077] In one embodiment of the present invention, Figure 4 and Figure 5 As shown, the moving mechanism 20 also includes a moving slide rail 24, which is located below the support frame 11 and extends along the first direction X. Specifically, the moving slide rail 24 is arranged on the base 30, and the two ends of the moving slide rail 24 extend to two mounting beams 31 respectively. A moving slider 25 is connected to the moving slide rail 24, and the moving slider 25 can slide back and forth along the moving guide rail. The push plate 23 is connected to the moving slider 25, and the piston rod of the servo drive cylinder 21 is connected to the moving slider 25, that is, the servo drive cylinder 21 is connected to the push plate 23 through the moving slider 25. Such a connection method increases the contact area between the servo drive cylinder 21 and the push plate 23, thereby improving the reliability of the connection between the push plate 23 and the servo drive cylinder 21, and the sliding cooperation between the moving slide rail 24 and the moving slider 25 can guide the movement of the push plate 23, so that the push plate 23 can stably push the single battery 100 to move.

[0078] Further, if Figure 4 and Figure 5As shown, a lifting drive cylinder 26 is connected to the moving slider 25, and the push plate 23 is connected to the lifting drive cylinder 26. The lifting drive cylinder 26 is configured to drive the push plate 23 to move in the vertical direction. When the servo drive cylinder 21 drives the push plate 23 to move between two adjacent support plates 12, the lifting drive cylinder 26 controls the push plate 23 to be located below the support frame 11 and move with the moving slider 25 to avoid interference with the support plate 12. When the servo drive cylinder 21 drives the push plate 23 to move between two adjacent support plates 12, the lifting drive cylinder 26 controls the push plate 23 to move vertically upward and be inserted between two adjacent support plates 12 to connect with the single battery 100 arranged on the support plate 12, so that the stacking operation can be automatically controlled.

[0079] It should be noted that the lifting drive cylinder 26 is a hydraulic cylinder or a pneumatic cylinder.

[0080] Of course, the push plate 23 can also be a retractable plate that can be extended and retracted in the vertical direction, so that when the servo drive cylinder 21 drives the push plate 23 to move between two adjacent support plates 12, the retractable plate is in a retracted state to avoid interference with the support plate 12. When the servo drive cylinder 21 drives the push plate 23 to move between two adjacent support plates 12, the retractable plate is in an extended state to connect with the single battery 100.

[0081] Alternatively, the push plate 23 and the piston rod of the servo drive cylinder 21 are connected in a detachable manner, such as by a bolt connection or a connecting pin connection. Specifically, when the servo drive cylinder 21 drives the push plate 23 to move between two adjacent support plates 12, the push plate 23 is removed to avoid interference with the support plate 12. When the servo drive cylinder 21 drives the push plate 23 to move between two adjacent support plates 12, the push plate 23 is connected to the piston rod of the servo drive cylinder 21 to be connected to the single battery 100.

[0082] Going further, Figure 4 As shown, the push plate 23 includes a first plate 231 and a second plate 232 arranged side by side along the second direction Y, and two lifting drive cylinders 26 arranged side by side are connected to the movable slider 25, and the piston rods of the two lifting drive cylinders 26 are respectively connected to the first plate 231 and the second plate 232, that is, the first plate 231 and the second plate 232 can be lifted to different heights by the lifting drive cylinders 26 respectively, so that when the single cell 100 partially expands and causes poor surface flatness, the push plate 23 can also be fitted and connected with the single cell 100, thereby smoothly pushing the single cell 100 to a preset position.

[0083] Furthermore, a reinforcing plate 27 is connected between the movable slider 25 and the push plate 23 to improve the reliability of the connection between the movable slider 25 and the push plate 23 .

[0084] In one embodiment of the present invention, Figure 3 As shown, the stacking mechanism 10 also includes a limit frame 13, which is a hollow frame structure formed by a plurality of support beams to reduce the overall weight of the limit frame 13. The limit frame 13 is connected to the top of the support frame 11 through a retractable guide column 14. Specifically, a retractable guide column is fixedly connected to each corner of the support frame 11, and the limit frame 13 is connected to the top surface of the retractable guide column. By adjusting the height of the retractable guide column, the distance between the support frame 11 and the limit frame 13 is adjusted to be suitable for the stacking operation of single cells 100 of different sizes. A plurality of movable plates 15 arranged side by side are slidably connected to the upper limit frame 13 along a first direction X, that is, the plurality of movable plates 15 are connected to the limit frame 13 side by side along the first direction X, and It can slide along the first direction X relative to the limiting frame 13, that is, a plurality of movable plates 15 arranged side by side are connected to the limiting frame 13 along the first direction X, and each movable plate 15 can slide back and forth along the first direction X on the limiting frame 13, and a pressing device 16 is connected to the bottom surface of the movable plate 15, and the pressing device 16 can move up and down relative to the movable plate 15, each pressing device 16 can correspond to a support plate 12, and the corresponding pressing device 16 and the support plate 12 can be clamped at the upper and lower ends of the single battery 100, so that when the single battery 100 loses the squeezing force of the push plate 23, the single battery 100 is limited by the corresponding pressing device 16 and the support plate 12, thereby reducing the risk of displacement when the single battery 100 is bonded.

[0085] Further, if Figure 3As shown, the pressing device 16 includes an upper pressing plate 161 and a lower pressing plate 162 which are spaced apart from each other, that is, the movable plate 15, the upper pressing plate 161 and the lower pressing plate 162 are arranged in sequence from top to bottom, and the upper pressing plate 161, the lower pressing plate 162 and the movable plate 15 are connected by a connecting rod 163, so that the upper pressing plate 161 and the lower pressing plate 162 can move up and down relative to the movable plate 15, and a pressing spring 164 is sleeved on the connecting rod 163, and the two ends of the pressing spring 164 respectively abut against the upper pressing plate 161 and the lower pressing plate 162, and by applying a downward force to the upper pressing plate 161, the upper pressing plate 161 moves downward, and the movement of the upper pressing plate 161 squeezes the pressing spring 164, and the pressing spring 164 is pressed downward. The spring 164 is compressed to generate elastic force, and the lower pressure plate 162 generates a downward force under the action of the downward pressure spring 164, so that it can fit tightly against the top surface of the single cell 100 to cooperate with the support plate 12 to firmly clamp the single cell 100 in the vertical direction. When the force applied to the upper pressure plate 161 is removed, since the lower pressure plate 162 abuts against the top surface of the single cell 100, the upper pressure plate 161 will move toward the movable plate 15 under the action of the downward pressure spring 164. At this time, the lower pressure plate 162 will not fit tightly against the single cell 100, and the movable plate 15 can be driven to move horizontally to separate the lower pressure plate 162 from the single cell 100.

[0086] Going further, Figure 2 As shown, a toggle plate 222 is connected to the execution frame 22, and the toggle plate 222 is located above the clamping block 221, that is, the two toggle plates 222 are arranged opposite to each other, and the toggle plates 222 can move back and forth along the first direction X on the execution frame 22, so that the toggle plates 222 can move synchronously with the single battery 100, and the two toggle plates 222 can move toward or away from each other, that is, each toggle plate 222 can move back and forth along the second direction Y, so that the two toggle plates 222 can be clamped on both sides of the moving plate 15 and toggle the moving plate 15 to move back and forth along the first direction X, thereby ensuring the stability of the moving plate 15 during the movement, and the toggle plates 222 can move up and down in the vertical direction, and the vertical movement of the toggle plates 222 can drive the upper pressing plate 161 to move toward the lower pressing plate 162, so that the operation of limiting the single battery 100 by the lower pressing device 16 and the support plate 12 becomes time-saving and labor-saving.

[0087] It should be noted that the clamping block 221 and the toggle plate 222 are respectively driven by a servo motor or a servo cylinder to reciprocate along the first direction X on the execution frame 22, the clamping block 221 and the toggle plate 222 are respectively driven by a hydraulic cylinder or a cylinder to move along the second direction Y, and the toggle plate 222 is driven by a cylinder or a hydraulic cylinder to move along the vertical direction;

[0088] Of course, a manipulator may also be used to directly drive the upper pressing plate 161 to move toward the lower pressing plate 162 , so that the lower pressing device 16 and the support plate 12 can limit the position of the single battery 100 .

[0089] Furthermore, in order to improve the smoothness of the movement of the clamping block 221 and the toggle plate 222, two guide rails spaced apart from each other can be set on the execution frame 22, and both guide rails extend along the first direction X. Sliders or pulleys are set on the clamping block 221 and the toggle plate 222, and the sliders or pulleys move along the guide rails, so that the clamping block 221 and the toggle plate 222 can move smoothly.

[0090] The working process of the battery stacking device of the present invention is described in detail below with reference to the accompanying drawings:

[0091] like Figure 1 and Figure 2 As shown, during the stacking operation, along the first direction X, the plurality of support plates 12 disposed on the support frame 11 are respectively named as the first support plate 12, the second support plate 12, the third support plate 12 ... the Nth support plate 12, where N is a natural number;

[0092] A single battery 100 is placed on the first support plate 12, and two clamping blocks 221 are driven to move along the first direction X to the opposite sides of the single battery 100, and then the two clamping blocks 221 are driven to move relative to each other to firmly clamp the opposite sides of the single battery 100. At the same time, the position detection device 2211 detects the initial position of the single battery 100 and sends the detected position information to the control mechanism, and the control mechanism sets the first moving distance of the piston rod of the servo drive cylinder 21 according to the initial position information of the single battery 100;

[0093] The servo drive cylinder 21 drives the push plate 23 to move between the first support plate 12 and the second support plate 12, and the lift drive cylinder 26 drives the push plate 23 to move vertically upward and insert between the first support plate 12 and the second support plate 12, so that the push plate 23 can be connected with the single battery 100. Subsequently, the servo drive cylinder 21 continues to drive the push plate 23 to move a first distance along the first direction X according to the instruction of the control mechanism, and the push plate 23 pushes the single battery 100 to move to the first set position;

[0094] The toggle plate 222 drives the moving plate 15 to drive the pressing device 16 to move to the top of the single battery 100. Then, the toggle plate 222 moves vertically downward to push the upper pressing plate 161 to move downward. The movement of the upper pressing plate 161 compresses the pressing spring 164, thereby driving the lower pressing plate 162 to abut against the top surface of the single battery 100 to clamp the single battery 100 in the vertical direction. Subsequently, the two clamping blocks 221 move along the second direction Y to release the single battery 100. At the same time, the lifting drive cylinder 26 drives the push plate 23 to move vertically downward to the bottom of the support frame 11.

[0095] A single battery 100 is placed on the second support plate 12, and the two clamping blocks 221 are driven to move along the first direction X to the opposite sides of the single battery 100, and then the two clamping blocks 221 are driven to move relative to each other to firmly clamp the opposite sides of the single battery 100. At the same time, the position detection device 2211 detects the initial position of the single battery 100 and sends the detected position information to the control mechanism, and the control mechanism sets the second moving distance of the piston rod of the servo drive cylinder 21 according to the initial position information of the single battery 100;

[0096] The servo drive cylinder 21 drives the push plate 23 to move between the second support plate 12 and the third support plate 12, and the lift drive cylinder 26 drives the push plate 23 to move vertically upward and insert between the second support plate 12 and the third support plate 12, so that the push plate 23 can be connected with the single battery 100. Subsequently, the servo drive cylinder 21 continues to drive the push plate 23 to move a second distance along the first direction X according to the instruction of the control mechanism, and the push plate 23 pushes the single battery 100 to move to the second set position, at which time the single battery 100 is bonded to the previous single battery 100.

[0097] The toggle plate 222 drives the moving plate 15 to drive the pressing device 16 to move to the top of the single battery 100. Then, the toggle plate 222 moves vertically downward to push the upper pressing plate 161 to move downward. The movement of the upper pressing plate 161 compresses the pressing spring 164, thereby driving the lower pressing plate 162 to abut against the top surface of the single battery 100 to clamp the single battery 100 in the vertical direction. Subsequently, the two clamping blocks 221 move along the second direction Y to release the single battery 100. At the same time, the lifting drive cylinder 26 drives the push plate 23 to move vertically downward to the bottom of the support frame 11.

[0098] The above operation is repeated until all the single batteries 100 are stacked together to complete the stacking operation.

[0099] Embodiment 2

[0100] like Figure 6As shown, the present invention also provides a battery stacking method, which uses the above-mentioned battery stacking device, and the battery stacking method includes:

[0101] Step 220, placing the single battery on the support plate;

[0102] Step 240: Move the two clamping blocks to opposite sides of the single battery and clamp the single battery, that is, the two clamping blocks are closely attached to the two first side surfaces of the single battery respectively, so that during the movement of the single battery, the two clamping blocks can limit the position of the single battery, thereby reducing the risk of the single battery being offset during the movement;

[0103] Step 260: The control mechanism obtains the target position according to the feedback information of the position detection device, and controls the servo drive cylinder to push the single battery to move to the target position along the first direction;

[0104] Step 280 , repeating the above steps 220 to 260 until a plurality of single cells are stacked into one, and each single cell is precisely moved by a set distance under the control of the control mechanism, so that the distance between each two adjacent single cells in the stack is substantially the same.

[0105] The battery stacking method of the present invention adopts the above-mentioned battery stacking device, thereby being able to effectively ensure the accuracy of the spacing between each two adjacent single batteries in the stack.

[0106] Further, the control mechanism obtains the target position according to the feedback information of the position detection device, specifically including:

[0107] The position detection device detects the position of the pole of the single battery and feeds back the detection information to the control mechanism, that is, the initial position of the single battery is obtained through the position detection device;

[0108] The control mechanism obtains the target position according to the received detection information and the preset interval distance. Specifically, the control mechanism calculates the actual moving distance of the single cell according to the initial position of the single cell and the interval between the single cell and the previous single cell, thereby obtaining the target position.

[0109] By detecting the position of the pole of the single cell by the position detection device to determine the initial position of the single cell, the distance between the poles of each two adjacent single cells in the stack can be made substantially the same, thereby facilitating the subsequent conductive bar connection operation.

[0110] In summary, the battery stacking device of the present invention detects the initial position of the single battery through the position detection device, so that the control mechanism can accurately determine the initial moving position of the single battery, thereby controlling the movement of the piston rod of the servo drive cylinder by a corresponding distance, and then the push plate is driven by the servo drive cylinder to accurately push the single battery to move a preset distance along the first direction, effectively ensuring the moving distance of the single battery, thereby ensuring the accuracy of the spacing between each two adjacent single batteries in the stack;

[0111] In the battery stacking device of the present invention, the single battery is moved by clamping the single battery by two clamping blocks during the movement process, which effectively reduces the risk of the single battery being offset during the movement process;

[0112] The battery stacking device of the present invention limits the position of the single battery by means of corresponding pressing devices and support plates clamped at the upper and lower ends of the single battery when the single battery loses the squeezing force of the push plate, thereby effectively reducing the risk of deviation of the single battery during bonding.

[0113] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate positions or positional relationships based on the working state of the present application, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0114] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0115] The present application has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, various replacements and improvements may be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. A battery stacking device, characterized in that: The battery stacking device comprises: A stacking mechanism, comprising a support frame, on which a plurality of support plates arranged side by side are slidably connected along a first direction; A moving mechanism, comprising a servo drive cylinder and an execution frame arranged on both sides of the support frame along the second direction, clamping blocks are connected to the oppositely arranged surfaces of the two execution frames, and a position detection device is connected to the clamping block, the clamping block can move along the first direction on the execution frame, and the two clamping blocks can move toward or away from each other, the two clamping blocks are configured to clamp on the opposite sides of the single battery, the position detection device is configured to detect the initial position of the single battery, the servo drive cylinder is arranged below the support frame, and a push plate is connected to the piston rod of the servo drive cylinder, and the push plate is configured to be connected to the single battery; a control mechanism electrically connected to the position detection device and the servo drive cylinder, the control mechanism being configured to control a moving distance of a piston rod of the servo drive cylinder according to a detection position of the position detection device; The second direction and the first direction are located in the same plane, and the second direction is perpendicular to the first direction.

2. The battery stacking device according to claim 1, characterized in that: The position detection device is a CCD camera.

3. The battery stacking device according to claim 2, characterized in that: The position of the CCD camera corresponds to the position of the pole of the single battery.

4. The battery stacking device according to claim 3, characterized in that: The single cell battery includes a top surface, a bottom surface, and a side surface sandwiched between the top surface and the bottom surface, the side surface has two oppositely arranged first side surfaces and two oppositely arranged second side surfaces, the area of ​​the first side surface is smaller than the area of ​​the second side surface, the first side surface is configured to be connected to the clamping block, and the pole is arranged on the first side surface.

5. The battery stacking device according to claim 1, characterized in that: The moving mechanism also includes a moving slide rail, which is located below the support frame and extends along the first direction. A moving slider is connected to the moving slide rail, and the moving slider can slide back and forth along the moving guide rail. The push plate is connected to the moving slider, and the piston rod of the servo drive cylinder is connected to the moving slider.

6. The battery stacking device according to claim 5, characterized in that: The movable sliding block is connected with a lifting driving cylinder, the push plate is connected to the lifting driving cylinder, and the lifting driving cylinder is configured to drive the push plate to move in a vertical direction.

7. The battery stacking device according to claim 6, characterized in that: The push plate includes a first plate and a second plate arranged side by side along the second direction, and the movable slider is connected to two lifting drive cylinders arranged side by side, and the piston rods of the two lifting drive cylinders are respectively connected to the first plate and the second plate.

8. The battery stacking device according to claim 5, characterized in that: A reinforcing plate is connected between the movable sliding block and the pushing plate.

9. The battery stacking device according to claim 1, characterized in that: The stacking mechanism also includes a limit frame, which is connected to the top of the support frame through a retractable guide column. A plurality of movable plates arranged side by side are slidably connected to the limit frame along the first direction. A pressing device is connected to the bottom surface of the movable plate, and the pressing device can move up and down relative to the movable plate.

10. The battery stacking device according to claim 9, characterized in that: The pressing device comprises an upper pressing plate and a lower pressing plate which are spaced apart from each other. The upper pressing plate, the lower pressing plate and the movable plate are connected via a connecting rod. A pressing spring is sleeved on the connecting rod. Both ends of the pressing spring abut against the upper pressing plate and the lower pressing plate respectively.

11. The battery stacking device according to claim 10, characterized in that: The execution frame is also connected to a toggle plate, which is located above the clamping block. The toggle plate can move along the first direction on the execution frame, and the two toggle plates can move toward or away from each other, and the toggle plate can move in a vertical direction. The vertical movement of the toggle plate can drive the upper pressure plate to move toward the lower pressure plate.

12. The battery stacking device according to any one of claims 1 to 11, characterized in that: The battery stacking device also includes a base, on which are provided two mounting beams arranged side by side and at intervals along the second direction, the support frame is connected to the two mounting beams, the moving mechanism is connected to the base, the two execution frames are located on both sides of the mounting beams along the second direction, and the servo drive cylinder is located between the two mounting beams.

13. The battery stacking device according to claim 12, characterized in that: The bottom surface of the base is connected with a moving roller for movement.

14. A battery stacking method, characterized in that: The battery stacking method adopts the battery stacking device according to any one of claims 1 to 13, and the battery stacking method comprises: Place the single battery on the support plate; Moving two clamping blocks to opposite sides of the single battery and clamping the single battery; The control mechanism obtains the target position according to the feedback information of the position detection device, and controls the servo drive cylinder to push the single battery to move to the target position along the first direction; Repeat the above steps until multiple single batteries are stacked into one.

15. The battery stacking method according to claim 14, characterized in that: The control mechanism obtains the target position according to the feedback information of the position detection device, specifically including: The position detection device detects the position of the pole of the single battery and feeds back the detection information to the control mechanism; The control mechanism obtains the target position according to the received detection information and the preset interval distance.

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