Exterior power source battery pole piece stacking device

Abstract

The application belongs to the technical field of battery production equipment, and particularly relates to an external power source battery pole piece stacking device, which comprises a moving seat, a pressing piece mechanism and a driving mechanism, a stacking station is arranged on the moving seat; the pressing piece mechanism is arranged on the moving seat, and a pressing end of the pressing piece mechanism can move in multiple axes compared with the stacking station; the driving mechanism is arranged on one side of a moving path of the moving seat; when the moving seat moves to one side of the driving mechanism, a driving end of the driving mechanism extends to the pressing piece mechanism and drives the pressing end of the pressing piece mechanism to move in multiple axes relative to the stacking station. The pressing piece part and the part where the pressing end of the pressing piece is driven to operate are independently arranged, which is beneficial to reduce the burden of the moving seat and improve the practicability of the stacking device. When the pressing piece mechanism does not need to leave the stacking station, the driving mechanism can drive the remaining pressing piece mechanisms which need to leave the stacking station, thereby realizing multi-station simultaneous stacking and greatly improving the production efficiency of the stacking device.

Description

Technical Field

[0001] This invention belongs to the field of battery production equipment technology, and particularly relates to an external power source battery electrode stacking device. Background Technology

[0002] After the electrode production process is completed, the electrodes need to be collected. During the collection process, the electrodes are usually collected by stacking. The stacking device currently used is controlled by a cylinder to raise and lower the pressure knife and open and close.

[0003] For example, patent application number CN201910342033.7, entitled "A Stacking Device," discloses "a stacking device comprising two first lifting components, both mounted on a support frame; two pressing components, respectively mounted on the two first lifting components; a second lifting component, mounted on the support frame between the two pressing components; and an electrode placement platform, mounted on the second lifting component; the pressing component includes a lifting plate; a left-hand lead screw pair, the two ends of which are rotatably connected to the lifting plate; a right-hand lead screw pair, the two ends of which are rotatably connected to the lifting plate; two pressing blades, respectively mounted on the lead screw blocks of the left-hand and right-hand lead screw pairs via moving blocks, and the pressing blades are horizontally positioned above the electrode placement platform; and a first driving component, driving the left-hand and right-hand lead screw pairs to rotate in the same direction, causing the two pressing blades to move closer or further apart; the first lifting component drives the two pressing blades to move up and down, greatly shortening the time for the pressing blades to complete the opening, closing, and lifting actions, thereby improving the stacking efficiency."

[0004] This patent reveals that in existing tablet stacking devices, the placement platform and tablet pressing structure are integrated into one unit, and the driving part of the tablet pressing structure is also integrated into the tablet pressing structure. For example, the tablet pressing action requires at least two-axis movement. Therefore, the driving source of the traditional tablet pressing structure is generally a two-axis robot or a combination of two sets of linear cylinders. In traditional tablet stacking devices, the placement platform needs to move back and forth to realize the loading and unloading operations. If the entire placement platform moves with the driving part, it will put a large load on the driving unit of the placement platform, resulting in increased power consumption of the driving unit of the placement platform, shortened service life, and shortened working cycle of the overall tablet stacking device. This leads to the tablet stacking device needing to be shut down for maintenance frequently, affecting work efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an external power source battery electrode stacking device, which aims to solve the technical problem in the prior art where the driving source of the pressing structure is integrated on the placement platform, which will cause a large load on the driving unit of the placement platform, resulting in a shortened service life of the placement platform, a shortened working cycle of the overall stacking device, and a need for frequent downtime maintenance of the stacking device, thus affecting work efficiency.

[0006] To achieve the above objectives, this invention provides an external power source battery electrode stacking device, comprising a movable base, a pressing mechanism, and a driving mechanism. The movable base is provided with a stacking station; the pressing mechanism is disposed on the movable base, and the pressing end of the pressing mechanism is capable of multi-axis movement relative to the stacking station; the driving mechanism is disposed on one side of the moving path of the movable base; when the movable base moves to the side of the driving mechanism, the driving end of the driving mechanism extends onto the pressing mechanism and drives the pressing end of the pressing mechanism to perform multi-axis movement relative to the stacking station.

[0007] Optionally, the tablet pressing mechanism includes a multi-axis moving assembly and a tablet pressing jaw. The multi-axis moving assembly is disposed on the moving base and located on one side of the disc station. The tablet pressing jaw is fixedly disposed on the moving end of the multi-axis moving assembly. When the moving base moves to one side of the driving mechanism, the output end of the driving mechanism is connected to the multi-axis moving assembly. The driving mechanism drives the moving end of the multi-axis moving assembly to reciprocate along a preset path, so that the tablet pressing jaw moves closer to or further away from the stacking station.

[0008] Optionally, the multi-axis moving assembly includes a first moving frame and a second moving frame. The first moving frame is slidably connected to the moving base and located on one side of the stacking station. The second moving frame is slidably connected to the first moving frame. The tablet clamping claw is disposed on the second moving frame. The moving base is provided with a first reset unit for driving the first moving frame to reset, and the first moving frame is provided with a second reset unit for driving the second moving frame to reset.

[0009] Optionally, the first reset unit includes a first connecting post and a first tension spring. The first connecting post is fixedly mounted on the movable seat. The two ends of the first tension spring are respectively connected to the ends of the first connecting post and the first movable frame. The moving path of the first movable frame is set in the horizontal direction, and the first tension spring always drives the first movable frame to move in the direction away from the driving mechanism.

[0010] Optionally, the second reset unit includes a second connecting post and a second tension spring. The second connecting post is fixedly mounted on the first movable frame. The two ends of the second tension spring are respectively connected to the ends of the second connecting post and the second movable frame. The moving path of the second movable frame is set in the vertical direction, and the second tension spring always drives the second movable frame away from the movable seat.

[0011] Optionally, the driving mechanism includes a first driving component and a second driving component. The first driving component is disposed on one side of the moving path of the movable seat; the second driving component is disposed at the driving end of the first driving component. When the movable seat moves to one side of the first driving component, the driving end of the first driving component is connected to the end of the first movable frame to form a driving state, and the end of the second driving component is connected to the end of the second movable frame to form a driving state. The first driving component and the second driving component are respectively used to drive the first movable frame and the second movable frame to move along a preset path, so that the tablet clamping claw moves closer to or away from the tablet stacking station.

[0012] Optionally, the first movable frame is provided with a first abutting member, and the driving end of the first driving component is provided with a through groove. The through groove is provided along the moving path direction of the movable seat, and the driving direction of the first driving component is perpendicular to the moving direction of the movable seat. When the first movable frame moves to one side of the first driving component, the first abutting member is located in the through groove, and the first driving component drives the first abutting member through the inner wall of the groove. When the first abutting member leaves the through groove, the first reset unit drives the first movable frame to reset.

[0013] Optionally, the second movable frame is provided with a second abutment, and the driving end of the second driving component is provided with an inclined abutment surface. When the first driving component is driven to connect with the first movable frame, the second abutment is located on the moving path of the driving end of the second driving component. As the driving end of the second driving component moves toward the second abutment, it drives the second abutment away from the movable seat through the inclined abutment surface. When the driving end of the second driving component moves away from the second abutment, the second reset unit drives the second movable frame to reset.

[0014] Optionally, the movable base includes a base, a stacking table, and a lifting assembly. The base is disposed at the linear drive end of an external linear device. The stacking table has the stacking station formed thereon. The lifting assembly includes a cross-axis bracket and a transmission unit. One end of the cross-axis bracket is movably connected to the bottom of the stacking table, and the other end of the cross-axis bracket is movably connected to the base. The transmission unit is disposed on the base, and a movable support leg of the cross-axis bracket is rotatably connected to the transmission unit. The input end of the transmission unit is detachably connected to the drive end of a lifting drive source. When the base moves to one side of the lifting drive source, the drive end of the lifting drive source drives the cross-axis bracket to rise or retract via the transmission unit.

[0015] Optionally, the lifting drive source includes a linear assembly and a linear motor. The linear assembly is disposed on one side of the base's moving path. The linear motor is disposed at the output end of the linear assembly, and a spline gear is disposed on the output spindle of the linear motor. The transmission unit is a worm gear pair, and the worm wheel of the transmission unit is fixedly disposed on the base. The worm of the transmission unit is rotatably connected to the movable support leg of the cross-axis bracket. An external spline gear that meshes with and is fitted onto the worm wheel of the transmission unit is tightly connected to the spline gear.

[0016] The above-mentioned one or more technical solutions in the external power source battery electrode stacking device provided in this embodiment of the invention have at least one of the following technical effects: When the moving seat moves to one side of the driving mechanism, the driving end of the driving mechanism is driven to connect with the pressing mechanism, thereby driving the pressing part of the pressing mechanism to move along a multi-axis path to achieve alternating pressing action, thereby realizing battery electrode stacking. After the stacking is completed, the driving end of the driving mechanism moves away from the moving seat, the pressing mechanism is disconnected from the driving mechanism, and the moving seat cooperates with the pressing mechanism to transport the stacked battery electrode to the preset working position. Compared with the traditional stacking device, where the driving source of the pressing structure is integrated on the placement table, which will cause a large load on the driving unit of the placement table, resulting in a shortened service life of the placement table and a shortened working cycle of the overall stacking device, causing the stacking device to need to be stopped for maintenance frequently, thus affecting the technical problem of work efficiency; In the battery electrode stacking device provided in this embodiment of the invention, the pressing part and the part that drives the pressing end to operate are set independently. Only when pressing is required will the corresponding pressing drive power consumption be generated. Such an external driving structure helps to reduce the burden on the moving seat and improve the practicality of the stacking device.

[0017] Meanwhile, the moving seat can be driven by an external drive source to move back and forth. When the tablet pressing mechanism does not need to leave the stacking station, the drive mechanism can drive the other tablet pressing mechanisms that need to leave the stacking station. Thus, multiple tablet pressing mechanisms can be set along the moving path of the moving seat. Any two adjacent groups of tablet pressing mechanisms are driven alternately by the drive mechanism, thereby realizing simultaneous stacking of tablets at multiple stations and greatly improving the production efficiency of the stacking device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the external power source battery electrode stacking device provided in an embodiment of the present invention.

[0020] Figure 2 for Figure 1 A schematic diagram of the tablet pressing mechanism and the moving seat.

[0021] Figure 3 This is a schematic diagram of the drive mechanism provided in an embodiment of the present invention.

[0022] Figure 4 for Figure 3 A structural diagram of the drive mechanism from another angle.

[0023] Figure 5 This is a schematic diagram of the tablet compression mechanism provided in an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the internal structure of the movable seat provided in an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the movable seat and the lifting drive source provided in an embodiment of the present invention.

[0026] The following are the labeling elements in the figure:

[0027] 100—Moving seat; 200—Tableting mechanism; 300—Tableting stacking station

[0028] 210—Multi-axis moving assembly; 220—Tablet clamping jaw; 211—First moving frame

[0029] 212—Second moving frame; 213—Inner groove; 214—First reset unit

[0030] 215—Second Reset Unit; 400—First Drive Assembly; 500—Second Drive Assembly

[0031] 216—First abutment component; 217—Second abutment component; 218—Through groove

[0032] 219—Inclined contact surface; 510—Mounting platform; 520—Linear motor

[0033] 530—Top plate 110—Base 120—Stacking platform

[0034] 130—Lifting assembly; 131—Cross-axis bracket; 132—Transmission unit

[0035] 600—Lifting drive source; 700—Splined gear; 800—External splined gear. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-7 The described embodiments are exemplary and intended to explain embodiments of the invention, and should not be construed as limiting the invention.

[0037] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0040] In one embodiment of the present invention, such as Figures 1-7 As shown, an external power source battery electrode stacking device is provided, including a movable base 100, a pressing mechanism 200, and a driving mechanism. The movable base 100 is provided with a stacking station 300. The pressing mechanism 200 is disposed on the movable base 100, and the pressing end of the pressing mechanism 200 is capable of multi-axis movement relative to the stacking station 300. The driving mechanism is disposed on one side of the moving path of the movable base 100. When the movable base 100 moves to the side of the driving mechanism, the driving end of the driving mechanism extends to the pressing mechanism 200 and drives the pressing end of the pressing mechanism 200 to perform multi-axis movement relative to the stacking station 300.

[0041] The movable seat 100 can reciprocate under the drive of an external drive source. When the tablet pressing mechanism 200 does not need to leave the stacking station 300, the drive mechanism drives the other tablet pressing mechanisms 200 that need to leave the stacking station 300. Thus, multiple tablet pressing mechanisms 200 can be arranged along the moving path of the movable seat 100, and any two adjacent groups of tablet pressing mechanisms 200 are driven alternately by the drive mechanism. For example, in this embodiment, six groups of tablet pressing mechanisms 200 are arranged on each side of the movable seat 100.

[0042] Taking the tableting mechanism 200 on the same side as an example: the six tableting mechanisms 200 on the same side are distributed at intervals along a straight line. There are three driving ends of the driving mechanism on the same side. There is a gap between the three driving ends of the driving mechanism. The length of the gap is the distance between the three tableting mechanisms 200. Therefore, at least one of any two adjacent tableting mechanisms 200 is always driven by the driving mechanism, which is consistent with the tableting action of a traditional tableting device.

[0043] Specifically, when the movable seat 100 moves to one side of the driving mechanism, the driving end of the driving mechanism is driven to connect with the pressing mechanism 200, thereby driving the pressing part of the pressing mechanism 200 to move along a multi-axis path to achieve alternating pressing action, realizing the stacking of battery electrodes. After the stacking is completed, the driving end of the driving mechanism moves away from the movable seat 100, the pressing mechanism 200 is disconnected from the driving mechanism, and the movable seat 100, in conjunction with the pressing mechanism 200, transports the stacked battery electrodes to a preset working position. Compared with traditional stacking devices, where the driving source of the pressing structure is integrated on the placement table, which will cause a large load on the driving unit of the placement table, resulting in a shortened service life of the placement table and a shortened working cycle of the overall stacking device, causing the stacking device to need to be stopped for maintenance frequently, thus affecting the technical problem of work efficiency, the battery electrode stacking device provided in this embodiment of the invention has an independently set pressing part and a part that drives the pressing end to operate independently. The corresponding pressing driving power consumption is only generated when pressing is required. Such an external driving structure helps to reduce the burden on the movable seat 100 and improve the practicality of the stacking device. At the same time, it enables simultaneous lamination at multiple workstations, greatly improving the production efficiency of the lamination device.

[0044] like Figures 1-5As shown, the tablet pressing mechanism 200 further includes a multi-axis moving assembly 210 and a tablet clamping jaw 220. The multi-axis moving assembly 210 is disposed on the moving base 100 and located on one side of the disc station. The tablet clamping jaw 220 is fixedly disposed on the moving end of the multi-axis moving assembly 210. When the moving base 100 moves to one side of the driving mechanism, the output end of the driving mechanism is connected to the multi-axis moving assembly 210. The driving mechanism drives the moving end of the multi-axis moving assembly 210 to reciprocate along a preset path, so that the tablet clamping jaw 220 moves closer to or further away from the moving base 210. In this embodiment, the multi-axis moving component 210 has two driving directions: horizontal and vertical. The horizontal driving part serves as the base, and the vertical driving part is set on the horizontal driving part, which allows the pressing jaw 220 to move in an L-shaped path relative to the stacking station 300. The vertical movement of the pressing jaw 220 is used to press the electrode or move away from the electrode, and the horizontal movement of the pressing jaw 220 is used to move closer to or away from the stacking station 300. The two-axis structure can effectively simplify the pressing action and improve the battery stacking efficiency.

[0045] like Figure 5 As shown, the multi-axis moving assembly 210 further includes a first moving frame 211 and a second moving frame 212. The first moving frame 211 is slidably connected to the moving base 100 and located on one side of the stacking station 300. The second moving frame 212 is slidably connected to the first moving frame 211. The tablet clamping claw 220 is disposed on the second moving frame 212. The moving base 100 is provided with a first reset unit 214 for driving the first moving frame 211 to reset, and the first moving frame 211 is provided with a second reset unit for driving the second moving frame 212 to reset. In this embodiment, the first movable frame 211 is located between the stacking station 300 and the driving mechanism. The first movable frame 211 is arranged in a vertical frame structure to provide sufficient space for the second movable frame 212 to slide. The tablet clamping claw 220 extends horizontally on the second movable frame 212. The tablet pressing mechanism 200 has a U-shaped cross-section in the horizontal direction. The tablet pressing principle of the tablet pressing mechanism 200 is to press the electrode by abutting the top wall of the inner groove 213 of the U-shaped structure with the electrode on the stacking station 300. This structure is simple and ingenious, easy to manufacture, and convenient for production.

[0046] like Figure 5As shown, the first reset unit 214 further includes a first connecting post and a first tension spring. The first connecting post is fixedly mounted on the movable base 100. The two ends of the first tension spring are respectively connected to the ends of the first connecting post and the first movable frame 211. The moving path of the first movable frame 211 is set horizontally, and the first tension spring always drives the first movable frame 211 to move in the direction away from the driving mechanism. Specifically, using a tension spring structure as the reset unit helps to save the driving source, reduce the manufacturing cost of the device, and at the same time ensure the tablet pressing effect.

[0047] like Figure 5 As shown, the second reset unit 215 further includes a second connecting post and a second tension spring. The second connecting post is fixedly mounted on the first movable frame 211. The two ends of the second tension spring are respectively connected to the ends of the second connecting post and the second movable frame 212. The moving path of the second movable frame 212 is arranged in a vertical direction, and the second tension spring always drives the second movable frame 212 away from the movable seat 100. In this embodiment, there are two sets of the second connecting post and the second tension spring. The second movable frame 212 is inverted L-shaped. One end of the second movable frame 212 is slidably connected to the side wall of the first movable frame 211. The top of the second movable frame 212 spans across the top of the first movable frame 211. The second connecting post is fixedly mounted on the side wall of the first movable frame 211 facing away from the second movable frame 212. One end of the second tension spring is connected to the top of the second movable frame 212. The use of two sets of tension springs helps to enhance the clamping force of the tablet clamping claw 220 and improve the tableting effect.

[0048] like Figures 3-4 As shown, the driving mechanism further includes a first driving component 400 and a second driving component 500. The first driving component 400 is disposed on one side of the moving path of the movable seat 100; the second driving component 500 is disposed at the driving end of the first driving component 400. When the movable seat 100 moves to one side of the first driving component 400, the driving end of the first driving component 400 is connected to the end of the first movable frame 211 to form a driving state, and the end of the second driving component 500 is connected to the end of the second movable frame 212 to form a driving state. The first driving component 400 and the second driving component 500 are respectively used to drive the first movable frame 211 and the second movable frame 212 to move along a preset path, so that the tablet clamp 220 moves closer to or further away from the tablet stacking station 300.

[0049] The working principle of the drive mechanism is as follows: When the movable seat 100 moves to one side of the first drive assembly 400, the drive end of the first drive assembly 400 is connected to the first movable frame 211. The first drive assembly 400 first drives the first movable frame 211 closer to the first drive assembly 400, causing the tablet clamping claw 220 to pull out the electrode stack. The second drive assembly 500 drives the second movable frame 212 to move upward. The first drive assembly 400 drives the first movable frame 211 to reset, so that the tablet clamping claw 220 is located above the highest electrode coating. The second drive assembly 500 drives the second movable frame 212 to reset, so that the tablet clamping claw 220 is pressed tightly onto the highest electrode coating. Specifically, the first drive assembly 400 and the second drive assembly 500 are respectively used to drive the first movable frame 211 and the second movable frame 212. The division of labor is clear, which facilitates the design of specific action procedures and ensures the accuracy of the staggered tablet pressing action.

[0050] like Figures 3-5 As shown, the first movable frame 211 is further provided with a first abutting member 216, and the driving end of the first driving component 400 is provided with a through groove 218. The through groove 218 is provided along the moving path direction of the movable seat 100, and the driving direction of the first driving component 400 is perpendicular to the moving direction of the movable seat 100. When the first movable frame 211 moves to one side of the first driving component 400, the first abutting member 216 is located in the through groove 218, and the first driving component 400 drives the first abutting member 216 through the inner wall of the through groove 218. When the first abutting member 216 leaves the through groove 218, the first reset unit 214 drives the first movable frame 211 to reset. Specifically, the initial positions of all the first movable frames 211 after being driven and reset by the first reset unit 214 are set along a straight path, and this straight path is parallel to the moving path of the movable seat 100. When the pressing mechanism 200 moves with the movable seat 100 in the state of pressing the electrode, its first abutment 216 can smoothly enter the corresponding through groove 218, and then be driven by the first driving component 400. This structure is ingenious and reasonably designed, which can effectively realize the rapid connection and separation between the first driving component 400 and the first movable frame 211, and can also ensure the driving effect and improve the operating efficiency of the stacking device. In this embodiment, the first driving component 400 is a linear slide table, and a connecting rib protrudes from the slide table of the first driving component 400. The through groove 218 is formed at the end of the connecting rib away from the slide table.

[0051] like Figures 3-5As shown, the second movable frame 212 is further provided with a second abutment 217, and the driving end of the second driving assembly 500 is provided with an inclined abutment surface 219. When the first driving assembly 400 is driven to connect with the first movable frame 211, the second abutment 217 is located on the moving path of the driving end of the second driving assembly 500. As the driving end of the second driving assembly 500 moves toward the second abutment 217, it drives the second abutment 217 away from the movable seat 100 through the inclined abutment surface 219. When the driving end of the second driving component 500 moves away from the second abutment 217, the second reset unit 215 drives the second moving frame 212 to reset. Specifically, the end of the driving end of the second driving component 500 near the second abutment 217 gradually narrows, so that the inclined abutment surface 219 is set in a conical structure. As the driving end of the second driving component 500 moves, the second abutment 217 gradually rises along the inclined abutment surface 219, thereby driving the second moving frame 212 to rise, so that the tablet clamp 220 moves to the top of the electrode stack.

[0052] Specifically, the second drive assembly 500 includes a mounting platform 510 and a linear motor 520. The output end of the linear motor 520 is provided with a slider, and the inclined abutment surface 219 is provided on the slider. The mounting platform 510 is provided at the drive end of the first drive assembly 400.

[0053] To achieve efficient multi-station stacking, a lifting frame is provided between the second abutment 217 and the slider in this embodiment. The lifting frame is slidably connected to the mounting platform 510 and slides in the vertical direction. Multiple lifting plates 530 protrude from the lifting frame. A roller is provided at the end of the lifting frame near the linear motor 520. The roller replaces the second abutment 217 and abuts against the inclined abutment surface 219, thereby converting the lifting action of a single set of second moving frames 212 into the lifting action of multiple sets of second moving frames 212, realizing multi-station production.

[0054] In the two embodiments described above, both the first abutting member 216 and the second abutting member 217 are rolling wheels. The use of a rolling structure is beneficial to improving the positioning error tolerance. For example, if there is a deviation between the actual movement path of the first abutting member 216 and the position alignment of the slot 218, the rolling structure can overcome this deviation so that the first abutting member 216 can smoothly enter the slot 218, reducing the difficulty of adjusting the device.

[0055] like Figures 6-7As shown, the movable seat 100 further includes a base 110, a stacking table 120, and a lifting assembly 130. The base 110 is disposed at the linear drive end of the external linear device. The stacking table 120 has the stacking station 300 formed on it. The lifting assembly 130 includes a cross-axis bracket 131 and a transmission unit 132. One end of the cross-axis bracket 131 is movably connected to the bottom of the stacking table 120, and the other end of the cross-axis bracket 131 is movably connected to the base 110. The transmission unit 132 is disposed on the base 110. A movable support leg of the cross-axis bracket 131 is rotatably connected to the transmission unit 132. The input end of the transmission unit 132 is detachably connected to the drive end of a lifting drive source 600. When the base 110 moves to one side of the lifting drive source 600, the drive end of the lifting drive source 600 drives the cross-axis bracket 131 to rise or retract through the transmission unit 132. Specifically, the cross-axis bracket 131 is a technically mature structure designed based on the telescopic principle of automatic gates or ladders. This embodiment will not elaborate further. The use of the cross-axis bracket 131 allows the entire lifting assembly 130 to be housed between the base 110 and the stacking platform 120, which is beneficial for structural optimization and reduces the space ratio of the device.

[0056] like Figures 6-7 As shown, the lifting drive source 600 further includes a linear assembly and a linear motor. The linear assembly is disposed on one side of the moving path of the base 110. The linear motor is disposed at the output end of the linear assembly, and a spline gear 700 is disposed on the output spindle of the linear motor. The transmission unit 132 is a worm gear pair. The worm wheel of the transmission unit 132 is fixedly disposed on the base 110. The worm of the transmission unit 132 is rotatably connected to the movable support leg of the cross-axis bracket 131. An external spline gear 800 that meshes with and is fitted to the spline gear 700 is tightly connected to the worm wheel of the transmission unit 132.

[0057] Specifically, the driving principle of the lifting drive source 600 is as follows: After the stacking process is completed, the base 110 is driven to one side of the lifting drive source 600 via an external linear device. The linear assembly drives the linear motor to approach the base 110. The output shaft of the linear motor drives the spline gear 700 to rotate and move towards the base 110. When the spline gear 700 is keyed to the external spline gear 800, the external spline gear 800 drives the worm to rotate, thereby causing the worm to move linearly relative to the fixed worm wheel. At this time, the spline gear 700, the external spline gear 800, and the worm are in a state of synchronous movement and synchronous rotation. Since the movable support leg of the cross-axis bracket 131 is rotatably connected to the worm, the movable support leg moves, thereby moving the stacking table 120 towards the pre-stressed position through the length multiplication principle. With directional drive to achieve lifting, when the linear motor 520 drives the spindle to reset, the spline gear 700, external spline gear 800, and worm gear rotate synchronously in opposite directions and move synchronously in opposite linear directions until the spline gear 700 and external spline gear 800 contact the key connection, thus completing the separation of the drive structure. When the stacking table 120 needs to be lifted, the lifting drive source 600 drives the stacking table 120. During the front-end stacking process, the lifting drive source 600 will not generate any load on the moving seat 100, effectively realizing the independent separation of the drive source and reducing the load on the moving seat 100. This greatly improves the movement accuracy of the moving seat 100, which needs to move frequently back and forth during the stacking process, and effectively improves the stacking efficiency of the stacking device.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An external power source battery pole piece stacking device, characterized in that, comprising: a moving seat, a stacking station is arranged on the moving seat; a piece pressing mechanism is arranged on the moving seat, and a pressing end of the piece pressing mechanism can move in multiple axes relative to the stacking station; a driving mechanism is arranged on one side of a moving path of the moving seat; when the moving seat moves to one side of the driving mechanism, a driving end of the driving mechanism extends to the piece pressing mechanism and drives the pressing end of the piece pressing mechanism to move in multiple axes relative to the stacking station; the piece pressing mechanism comprises a multiple-axis moving assembly, which is arranged on the moving seat and located on one side of the stacking station; the multiple-axis moving assembly comprises a first moving frame, which is slidingly connected to the moving seat and located on one side of the stacking station; the driving mechanism comprises a first driving assembly, which is arranged on one side of the moving path of the moving seat; when the moving seat moves to one side of the first driving assembly, a driving end of the first driving assembly is connected to an end of the first moving frame to form a driving state, and the first driving assembly is used to drive the first moving frame to move along a preset path; the first moving frame is provided with a first abutting piece, the driving end of the first driving assembly is provided with a through slot, the through slot is arranged along the moving path direction of the moving seat, and the driving direction of the first driving assembly is perpendicular to the moving direction of the moving seat; when the first moving frame moves to one side of the first driving assembly, the first abutting piece is located in the through slot, and the first driving assembly generates a driving action on the first abutting piece through an inner wall of the through slot; when the first abutting piece leaves the through slot, the moving seat is provided with a first reset unit for driving the first moving frame to reset, and the first reset unit drives the first moving frame to reset.

2. The external power source battery pole piece stacking device according to claim 1, characterized in that: the piece pressing mechanism comprises: a piece pressing jaw, which is fixedly arranged on a moving end of the multiple-axis moving assembly; when the moving seat moves to one side of the driving mechanism, an output end of the driving mechanism is connected with the multiple-axis moving assembly, and the driving mechanism drives the moving end of the multiple-axis moving assembly to reciprocatingly move along a preset path, so that the piece pressing jaw approaches or moves away from the stacking station.

3. The external power source battery pole piece stacking device according to claim 2, characterized in that: the multiple-axis moving assembly comprises: a second moving frame, which is slidingly connected to the first moving frame; the piece pressing jaw is arranged on the second moving frame, and the first moving frame is provided with a second reset unit for driving the second moving frame to reset.

4. The external power source battery pole piece stacking device according to claim 3, characterized in that: the first reset unit comprises: a first connecting column, which is fixedly arranged on the moving seat; ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ A first tension spring, two ends of the first tension spring are connected with the first connecting column and the end of the first moving frame respectively; The moving path of the first moving frame is arranged along a horizontal direction, and the first tension spring always drives the first moving frame to move in a direction away from the driving mechanism. 5.The external power source battery pole piece stacking device according to claim 3, characterized in that: The second reset unit comprises: A second connecting column is fixedly arranged on the first moving frame; A second tension spring, two ends of the second tension spring are connected with the second connecting column and the end of the second moving frame respectively; The moving path of the second moving frame is arranged along a vertical direction, and the second tension spring always drives the second moving frame to move away from the moving seat. 6.The external power source battery pole piece stacking device according to any one of claims 3-5, characterized in that: The driving mechanism comprises: A second driving assembly is arranged at the driving end of the first driving assembly; When the moving seat moves to one side of the first driving assembly, the end of the second driving assembly is connected with the end of the second moving frame to form a driving state, and the second driving assembly is used to drive the second moving frame to move along a preset path, so that the sheet clamping jaw is close to or away from the stacking station. 7.The external power source battery pole piece stacking device according to claim 6, characterized in that: The second moving frame is provided with a second abutting piece, and the driving end of the second driving assembly is provided with an inclined abutting surface; when the first driving assembly is drivingly connected with the first moving frame, the second abutting piece is located on the moving path of the driving end of the second driving assembly, and in the process of moving of the driving end of the second driving assembly in the direction of the second abutting piece, the second abutting piece is driven by the inclined abutting surface to move away from the moving seat; when the driving end of the second driving assembly moves away from the second abutting piece, the second reset unit drives the second moving frame to reset. 8.The external power source battery pole piece stacking device according to claim 1, characterized in that: The moving seat comprises: A base is arranged at the linear driving end of the external linear device; A stacking table is formed with the stacking station; A lifting assembly comprises a cross shaft support and a transmission unit, one end of the cross shaft support is movably connected with the bottom of the stacking table, the other end of the cross shaft support is movably connected with the base, the transmission unit is arranged on the base, one movable leg of the cross shaft support is rotatably connected with the transmission unit, and the input end of the transmission unit is detachably connected with the driving end of a lifting driving source; when the base moves to one side of the lifting driving source, the driving end of the lifting driving source drives the cross shaft support to rise or contract through the transmission unit. 9.The external power source battery pole piece stacking device according to claim 8, characterized in that: The lifting driving source comprises: A linear assembly is arranged at one side of the moving path of the base; A linear motor is arranged at the output end of the linear assembly, and a spline gear is arranged on the output spindle of the linear motor; The transmission unit is a worm pair, the worm wheel of the transmission unit is fixedly arranged on the base, the worm of the transmission unit is rotationally connected with the movable leg of the cross shaft type support, and the worm wheel of the transmission unit is tightly and connectively connected with an external spline gear which is engaged with the spline gear.

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