Pole piece handling device and system

Abstract

This application relates to an electrode handling device and system. The device includes a first driving device, a cam transmission mechanism, and an electrode transfer assembly. The first driving device provides rotational driving force. The cam transmission mechanism includes a first transmission engagement part and a second transmission engagement part. The first transmission engagement part is connected to the first driving device and inputs the rotational power of the first driving device. The second transmission engagement part converts the rotational power into vertical reciprocating power. The electrode transfer assembly includes a connecting part and a gripping part. The connecting part is connected to the second transmission engagement part. The electrode transfer assembly reciprocates vertically under the drive of the second transmission engagement part, and the gripping part transports the electrode. The solution provided by this application can increase the electrode handling speed, reduce the stacking cycle, and thus adapt to high-speed production cycles, improving stacking production efficiency.

Description

Technical Field

[0001] This application relates to the field of new energy technology, and in particular to electrode handling devices and systems. Background Technology

[0002] As a core component in the new energy field, the precise handling and efficient stacking of electrode sheets in the manufacturing process of lithium-ion batteries are key factors affecting battery performance and production efficiency.

[0003] In related technologies, electrode handling devices often employ cylinder drives or a combination of a conventional motor and a linkage mechanism to complete lifting and transfer actions through intermittent start-stop movements. However, such structures have significant drawbacks: on the one hand, cylinder drives suffer from response delays due to the gas compression characteristics, making them difficult to adapt to high-speed production cycles; on the other hand, the acceleration and deceleration time losses caused by frequent start-stop operations of conventional motors further exacerbate the extension of the stacking cycle, thereby affecting stacking efficiency.

[0004] Therefore, how to effectively reduce the stacking cycle and improve stacking production efficiency has become an urgent technical problem to be solved. Utility Model Content

[0005] To address or partially address the problems existing in the related technologies, this application provides an electrode handling device and system that can increase the handling speed of the electrode, reduce the stacking cycle, and thus adapt to high-speed production cycles and improve stacking production efficiency.

[0006] The first aspect of this application provides an electrode transport device, comprising: A first driving device is used to provide rotational driving force; A cam transmission mechanism includes a first transmission engagement part and a second transmission engagement part. The first transmission engagement part is connected to the first drive device and is used to input the rotational power of the first drive device. The second transmission engagement part is used to convert the rotational power into vertical reciprocating power. The electrode transfer assembly includes a connecting part and a gripping part. The connecting part cooperates with the second transmission engagement part. The electrode transfer assembly is used to reciprocate in the vertical direction under the drive of the second transmission engagement part and to transport the electrode through the gripping part.

[0007] In one implementation, the cam transmission mechanism includes a cylindrical cam and a cam follower that cooperates with the cylindrical cam, wherein the first transmission engagement part is located at the axial end of the cylindrical cam; The second transmission engagement part includes a cam transmission curve disposed on the outer periphery of the cylindrical cam, the cam transmission curve slidingly engaging with the cam follower, and the cam follower being connected to the connecting part of the shifter assembly.

[0008] In one implementation, the cam transmission curve includes a high-position stop segment, a low-position stop segment, an acceleration push segment, and an acceleration return segment connected in sequence, and the high-position stop segment, low-position stop segment, acceleration push segment, and acceleration return segment form a loop. When the cam follower is in the high-position stop segment and the low-position stop segment, it corresponds to the rising end point and the falling end point of the plate shifting assembly, respectively. During the acceleration push segment, the cam follower is used to drive the plate shifting assembly to fall, and during the acceleration return segment, it is used to drive the plate shifting assembly to rise.

[0009] In one implementation, the gripping part is provided with a suction cup assembly for adsorbing the electrode and a vacuum mechanism for controlling the operation of the suction cup assembly; the dwell time of the low-position stop segment is synchronized with the vacuum action of the suction cup assembly adsorbing the electrode.

[0010] In one implementation, a first frame, the first drive device and the cam transmission mechanism are mounted on the first frame, and the first drive device and the cam transmission mechanism are arranged longitudinally. The second frame, wherein the plate-shifting assembly is disposed in the second frame; A sliding mechanism is located on the side of the first frame and is fixed relative to the first frame. The second frame is connected to the first frame through the sliding mechanism. In one implementation, a sensor assembly is further included. Both the first driving device and the sensor assembly are electrically connected to the controller. The sensor assembly is used to detect the position data of the plate shifting assembly. The controller controls the first driving device to operate based on the received position data, so that the cam transmission mechanism resets to its initial position after the plate shifting is completed.

[0011] In one implementation, the sensor assembly includes a sensor and a sensing element. The sensor is located at a position corresponding to the high-position stop segment and / or the low-position stop segment. The sensing element is mounted on the piece shifting assembly. The sensor is used to detect the sensing element to obtain initial position data of the piece shifting assembly corresponding to the high-position stop segment and / or the low-position stop segment.

[0012] In one implementation, the plate-shifting assembly further includes a second driving device for driving the suction cup assembly to rotate, wherein the acceleration return period, the high-position stop period, and the acceleration push period are synchronized with the rotational action of the second driving device.

[0013] A second aspect of this application provides an electrode transport system, comprising: Lateral movement mechanism; and At least one set of transport components, the transport components including at least one electrode transport device as described in the first aspect above, the lateral movement mechanism being used to drive the electrode transport device to move laterally, so as to transport the electrode carried on the electrode conveying device to the target position.

[0014] In one implementation, a straightening platform and a stacking platform are arranged along the movement direction of the lateral moving mechanism; The transport assembly includes a first transport mechanism and a second transport mechanism. The first transport mechanism is located between the electrode conveying device and the alignment table, and is used to grab the electrode carried on the electrode conveying device, rotate it at a specific angle, and place it on the alignment table. The alignment table is used to adjust the position of the electrode. The second transport mechanism is located between the alignment table and the stacking table, and is used to move the electrode after its position is adjusted to the stacking table. The first transport mechanism is the electrode transporting device as described in the first aspect above.

[0015] The technical solution provided in this application may include the following beneficial effects: The electrode handling device provided in this application includes a cam transmission mechanism comprising a first transmission engagement part and a second transmission engagement part. The first transmission engagement part is connected to the first driving device and is used to input the rotational power of the first driving device. The second transmission engagement part is used to convert the rotational power into vertical reciprocating power. In this way, the cam transmission mechanism can convert continuous rotational motion into continuous reciprocating motion of the gripping part of the electrode transfer assembly in the vertical direction, which can improve the electrode handling speed, reduce the stacking operation cycle, and thus adapt to high-speed production cycle and improve the stacking production efficiency.

[0016] Furthermore, the electrode handling device provided in this application includes a cam transmission curve comprising a high-position stop segment, a low-position stop segment, an acceleration push segment, and an acceleration return segment connected in sequence, forming a loop. When the cam follower is located in the high-position stop segment and the low-position stop segment, it corresponds to the rising and falling endpoints of the electrode transfer assembly, respectively. During the acceleration push segment, the cam follower drives the electrode transfer assembly to descend; during the acceleration return segment, it drives the electrode transfer assembly to rise. With this configuration, when the first drive device operates continuously, the electrode transfer assembly achieves synchronous lifting and lowering motion. The segmented cam curve design keeps the suction cup assembly stationary at both high and low positions, resulting in more stable suction and release actions. The design of the acceleration push segment and the acceleration return segment reduces the reciprocating cycle of the suction cup assembly between the high-position stop segment and the low-position stop segment, thereby increasing the electrode handling speed.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0019] Figure 1 This is a side view of an electrode transport device shown in one embodiment of this application; Figure 2 This is a schematic diagram illustrating the cooperation between the cam transmission mechanism and the plate shifting assembly in an electrode handling device according to an embodiment of this application; Figure 3 This is a three-dimensional structural schematic diagram of an electrode transport device according to an embodiment of this application; Figure 4 This is a schematic diagram of the electrode transport system shown in the embodiments of this application.

[0020] Reference numerals: 100, electrode handling device; 110, first driving device; 111, first frame; 112, connecting plate; 120, cam transmission mechanism; 121, first transmission mating part; 122, second transmission mating part; 1201, cylindrical cam; 123, cam follower; 1202, cam transmission curve; 130, electrode shifting assembly; 131, connecting part; 132, gripping part; 1321, vacuum mechanism; 1322, suction cup assembly; 134, second driving device; 140, sensor assembly; 141, sensor; 142, sensing element; 200, lateral movement mechanism; 210, frame; 300, second handling mechanism; 400, electrode conveying device; 500, alignment table; 600, stacking table. Detailed Implementation

[0021] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0022] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0023] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In the description of this application, 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, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0025] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "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 this application according to the specific circumstances.

[0026] In related technologies, electrode handling devices mostly employ cylinder drives or ordinary motors combined with linkage mechanisms, completing lifting and transfer actions through intermittent start-stop movements. However, such structures have significant drawbacks: on the one hand, cylinder drives suffer from response delays due to gas compression characteristics, making them difficult to adapt to high-speed production cycles; on the other hand, the acceleration and deceleration time losses caused by frequent start-stop operations of ordinary motors further exacerbate the lengthening of the stacking cycle, thus affecting stacking efficiency. To address these issues, this application provides an electrode handling device and system that can increase the electrode handling speed, reduce the stacking cycle, and thus adapt to high-speed production cycles, thereby improving stacking production efficiency.

[0027] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0028] Figure 1 This is a side view of an electrode transport device shown in one embodiment of this application.

[0029] See Figure 1This application provides an electrode handling device 100, including a first driving device 110, a cam transmission mechanism 120, and an electrode transfer assembly 130. The first driving device 110 provides rotational driving force. The cam transmission mechanism 120 includes a first transmission engagement portion 121 and a second transmission engagement portion 122. The first transmission engagement portion 121 is connected to the first driving device 110 and is used to input the rotational power of the first driving device 110. The second transmission engagement portion 122 converts the rotational power into vertical reciprocating power. The electrode transfer assembly 130 includes a connecting portion 131 and a gripping portion 132. The connecting portion 131 engages with the second transmission engagement portion 122. The electrode transfer assembly 130 reciprocates vertically under the drive of the second transmission engagement portion 122, and the gripping portion 132 handles the electrode.

[0030] In this embodiment, the cam transmission mechanism 120 can convert continuous rotary motion into continuous reciprocating motion of the electrode shifting assembly 130 in the vertical direction. With this configuration, the electrode handling speed can be increased, the stacking operation cycle can be reduced, and thus it can adapt to high-speed production cycle and improve the stacking production efficiency.

[0031] In some embodiments, the system further includes a first frame 111, a second frame, and a sliding mechanism. A first drive device 110 and a cam transmission mechanism 120 are mounted on the first frame 111 and are arranged longitudinally. A shifting plate assembly 130 is disposed on the second frame. The sliding mechanism is located on the side of the first frame 111 and is fixed relative to the first frame 111. The second frame 111 is connected to the first frame 111 through the sliding mechanism.

[0032] See also Figure 1 In some embodiments, the servo motor and the cylindrical cam 1201 are mounted on the horizontal mounting plate of the first frame 111 via flanges; the second frame is connected to the first frame 111 via one or two sets of linear guides (sliding mechanisms) arranged in the vertical direction, the slider of the linear guide is fixed to the second frame by bolts, and the track of the linear guide is fixedly installed on the side of the first frame 111, thus ensuring the vertical movement accuracy of the shifting plate assembly.

[0033] In some embodiments, the cam transmission mechanism 120 includes a cylindrical cam 1201 and a cam follower 123 that cooperates with the cylindrical cam 1201. A first transmission engagement portion 121 is provided at the axial end of the cylindrical cam 1201. A second transmission engagement portion 122 includes a cam transmission curve 1202 provided on the outer periphery of the cylindrical cam 1201. The cam transmission curve 1202 is slidably engaged with the cam follower 123. The cam follower 123 is connected to the connecting portion 131 of the shifter assembly 130.

[0034] In this embodiment, the first driving device 110 can be a servo motor. The output shaft of the servo motor can be rigidly connected to the first transmission engagement part 121 of the axial end of the cylindrical cam 1201 (e.g., the upper end of the cylindrical cam 1201) through a tensioning sleeve, so as to provide continuous rotational power to the cylindrical cam 1201 and ensure that the power is transmitted without gaps.

[0035] The rotation axis of the cylindrical cam 1201 is coaxial with the rotation axis of the power output end of the first drive device 110. The first drive device 110 is located above the cylindrical cam 1201, and its power output end faces the upper end of the cylindrical cam 1201. The cam transmission curve 1202 on the outer periphery of the cylindrical cam 1201 slides in cooperation with the cam follower 123.

[0036] The cam follower 123 can be fixed to the second frame by means of, for example, pins or bolts, and the second frame is locked to the base of the gripping part 132 by four sets of bolts. The gripping part 132 is provided with a suction cup assembly 1322 for adsorbing the electrode and a vacuum mechanism 1321 for controlling the operation of the suction cup assembly 1322; the dwell time of the low-position stop section is synchronized with the vacuum action of the suction cup assembly 1322 adsorbing the electrode.

[0037] The suction cup assembly 1322 includes one or more vacuum suction cups arranged in a matrix, with the openings of the vacuum suction cups facing the electrode. The vacuum mechanism 1321 includes a vacuum interface located at the top of the second frame. The inner cavity of the suction cup is connected to the vacuum interface via a pipe, and the vacuum interface is connected to a vacuum pump via a pipe. In this application, the duration of the electrode's residence in the low position is matched with the vacuum pump's adsorption action. After the vacuum signal is triggered, the suction cup adsorbs the electrode, thus synchronizing the vacuum action with the electrode's residence time, improving the adsorption success rate, and preventing the electrode transfer assembly 130 from rising prematurely before adsorption is complete.

[0038] Figure 2 This is a schematic diagram illustrating the cooperation between the cam transmission mechanism and the electrode shifting assembly in an electrode handling device according to an embodiment of this application.

[0039] See Figure 1 and Figure 2 In some embodiments, the cam transmission curve 1202 includes a high-position stop segment C, a low-position stop segment A, an acceleration push segment B, and an acceleration return segment (not shown) connected in sequence. The acceleration push segment B and the acceleration return segment are located on both sides of the cylindrical cam and are arranged at an angle. The high-position stop segment C and the low-position stop segment A are located at different positions of the cylindrical cam in the axial direction and have a set distance between them. The acceleration push segment B and the acceleration return segment transitionally connect the high-position stop segment C and the low-position stop segment A on both sides of the radial direction. In this way, when the cylindrical cam rotates one revolution, the high-position stop segment C, the low-position stop segment A, the acceleration push segment B, and the acceleration return segment form a loop.

[0040] In this embodiment, when the cam follower 123 is in the high-position stop segment and the low-position stop segment, it corresponds to the rising end point and the falling end point of the electrode transfer assembly, respectively. During the acceleration push segment, the cam follower 123 drives the electrode transfer assembly to descend, and during the acceleration return segment, it drives the electrode transfer assembly to rise. The segmented cam curve design keeps the suction cup assembly 1322 stationary during the high and low position stops, ensuring stable suction and release actions. The design of the acceleration push segment B and the acceleration return segment reduces the reciprocating cycle of the suction cup assembly 1322 between the high-position stop segment and the low-position stop segment, thereby increasing the electrode transfer speed.

[0041] Figure 3 This is a three-dimensional structural schematic diagram of an electrode transport device according to an embodiment of this application.

[0042] See Figures 1-3 In some embodiments, a sensor assembly 140 is also included. Both the first driving device and the sensor assembly 140 are electrically connected to the controller. The sensor assembly 140 is used to detect the position data of the shift assembly 130. The controller controls the first driving device 110 to operate based on the received position data, so that the cam transmission mechanism 120 resets to its initial position after the shift is completed. This enables real-time correction and adaptive adjustment of the shift assembly 130, eliminates cumulative errors caused by mechanical wear, dynamically adjusts the servo motor speed, and adapts to electrode sheets of different thicknesses.

[0043] See also Figure 3 In some embodiments, the sensor assembly 140 includes a sensor 141 and a sensing element 142. The signal output of the sensor 141 is linked to the servo motor encoder. The sensor 141 is located at a position corresponding to the high-position stop segment and / or the low-position stop segment. The sensing element 142 is mounted on the shift assembly 130. The sensor 141 is used to detect the sensing element in order to obtain the initial position data of the shift assembly 130 corresponding to the high-position stop segment and / or the low-position stop segment.

[0044] Specifically, sensor 141 can be fixed to the cam housing. Sensor 141 can be a slotted photoelectric sensor with a distance of approximately 5mm between the sensor's transmitting and receiving ends, facing the movement trajectory of the cam follower 123. Sensing element 142 can be a sensing element (e.g., a metal sheet) that can be bolted to the second frame, its position aligned with the axis of the cam follower 123. When the sensing element enters the sensor's detection area, the sensor outputs a high-level signal to the controller. The controller records the encoder position of the servo motor at this time and compares it with the preset cam origin phase, dynamically adjusting the servo motor's speed to compensate for mechanical errors. With this setup, real-time detection via the photoelectric sensor improves position feedback accuracy, and the dynamic compensation mechanism eliminates cam phase drift caused by long-term operation, thereby enhancing system stability.

[0045] In some embodiments, the plate shifting assembly 130 further includes a second drive device 134 for driving the suction cup assembly 1322 to rotate. The acceleration return period, high-position stop period, and acceleration push period are synchronized with the rotation of the second drive device 134. The second drive device 134 can be a DD motor, which can be connected to the base of the suction cup assembly 1322 via a flange. One side of the flange is fixed to the second frame with bolts, and the other side is locked to the rotor end face of the DD motor. The stator of the DD motor is fixed to the second frame via a bracket, and the rotor is directly connected to the rotation axis of the suction cup assembly 1322, enabling the suction cup assembly 1322 to rotate 90°. During the acceleration return period, high-position stop period, and acceleration push period, the controller triggers the DD motor to perform rotation, and the rotation signal and the servo motor phase signal are synchronized via the CAN bus. By using a direct drive DD motor to avoid gear transmission backlash, the rotational positioning accuracy is improved. During the high-position dwell period, the second drive device 134 drives the suction cup to rotate 90°. The rotation signal is synchronized with the phase of the first drive device 110, thus making the rotation and lifting seamlessly connected and shortening the cycle time.

[0046] Figure 4 This is a schematic diagram of the electrode transport system shown in the embodiments of this application.

[0047] See Figure 1 and Figure 4 This application also provides an electrode transport system, which includes a lateral movement mechanism 200 and at least one set of transport components. The transport components include at least one electrode transport device 100 as described in the above embodiment. The lateral movement mechanism 200 is used to drive the electrode transport device 100 to move laterally so as to transport the electrode carried on the electrode conveying device 400 to a target position, which may be a straightening table or a stacking table.

[0048] In this application, the direction of movement of the lateral or lateral moving mechanism is: Figure 4 The Y direction, or longitudinal or vertical direction, is... Figure 4 In the Z direction, the conveying direction of the electrode conveying device or the length direction of the electrode shifting assembly can be the X direction.

[0049] The system of this application can support multiple sets of handling components to work in parallel along the horizontal direction. The synchronous operation of multiple handling components can improve the system's capacity, and the system can adapt to different capacity requirements by increasing or decreasing the number of components.

[0050] In some embodiments, the electrode transport system further includes a centering platform 500 and a stacking platform arranged along the movement direction of the transverse moving mechanism 200; the transport assembly includes a first transport mechanism and a second transport mechanism 300, which are fixedly mounted on the frame of the electrode transport system via a connecting plate 112. The first transport mechanism is located between the electrode conveying device 400 and the centering platform 500, and is used to grab the electrode carried on the electrode conveying device 400, rotate it at a specific angle, and place it on the centering platform 500, which is used to adjust the position of the electrode; the second transport mechanism 300 is located between the centering platform 500 and the stacking platform 600, and is used to move the adjusted electrode to the stacking platform 600; wherein, the first transport mechanism is the electrode transporting device 100 as described in the above embodiment.

[0051] It is worth noting that, in this application, the first conveying mechanism and the second conveying mechanism 300 are identical in structure except for the mechanism for controlling the rotation of the plate shifting assembly (such as the second drive device and its transmission structure), both including the first drive device, the cam transmission mechanism, the plate shifting assembly and its gripping part.

[0052] See Figure 3 and Figure 4 In some embodiments, the lateral movement mechanism 200 includes a frame 210 and a lateral linear motor. The lateral linear motor includes a stator rail and a drive slider. The stator rail is fixed to the frame 210, and the drive slider is connected to the connecting plate 112 of the first conveying mechanism (i.e., Figure 3 The connecting plate 112 of the electrode transport device 100 is fixedly connected and can drive the electrode transport device 100 to reciprocate along the X direction. When the first transport mechanism (also called the external transport system) moves laterally to above the electrode conveying device 400 (e.g., a conveyor belt), the suction cup assembly 1322 descends, and after the suction cup adsorbs the electrode carried on the electrode conveying device 400, it moves laterally to above the alignment table 500. At the same time, the DD motor is controlled to run, so that the suction cup assembly 1322 performs a 90° rotation, and the electrode is rotated 90° and placed on the alignment table 500. After the alignment table 500 finely adjusts the direction of the electrode again, the second transport mechanism 300 (also called the internal transport system) grabs the aligned electrode from above the alignment table 500, and then moves laterally to above the stacking table 600 through a linear motor, and performs a vertical lifting action to perform the stacking operation on the stacking table 600.

[0053] In some embodiments, a stacking station may be symmetrically equipped with two sets of transport components. The two sets of transport components are arranged adjacent to each other in the lateral direction. The two sets of transport components transport the positive and negative electrode sheets respectively and perform stacking operations on the positive and negative electrode sheets respectively.

[0054] In the system of this application, the first drive device 110 is always in operation during the stacking process. In the initial state, the cam follower 123 is at the beginning of the acceleration push segment. Driven by the first drive device 110, it accelerates to the top of the electrode. The cam follower 123 is at the end of the acceleration push segment (or the beginning of the low-position stop segment). The low-position stop segment is used to briefly stop above the electrode to complete the electrode picking. After the electrode picking is completed, the cam follower 123 is at the end of the low-position stop segment (or the beginning of the acceleration return segment). After the conveying system quickly raises the electrode a certain distance, the cam follower 123 enters the high-position stop segment. During this process, the transverse linear motor drives the first conveying mechanism to the top of the alignment table 500. The second drive device 134 rotates the suction cup for adsorbing the electrode by 90°, and the cam follower 123 re-enters the acceleration push phase, causing the first transport mechanism to reach above the alignment platform 500. It briefly pauses at the low stop phase to release the electrode from the suction cup. When the cam follower 123 enters the acceleration return phase, the transport system rises rapidly, and the cam follower 123 enters the high stop phase. The horizontal linear motor drives the first transport mechanism back above the electrode, entering the next transport cycle. Therefore, this application designs a cam transmission curve 1202 to match the electrode picking rhythm of the electrode shifting assembly 130. Throughout the process, the servo motor of the first drive device 110 operates continuously, thus avoiding time waste caused by frequent motor starts and stops. The alignment platform 500 can include X-axis and Y-axis pneumatic slides and a rotary servo motor to fine-tune the electrode in the X-axis, Y-axis, and rotational directions. This enables closed-loop automatic control of the "adsorption-rotation-alignment-stacking" operation process, improving the electrode stacking alignment accuracy and thus enhancing the uniformity of battery energy density.

[0055] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A pole piece handling device, characterized by, include: The first driving device is used to provide rotational driving force; A cam transmission mechanism includes a first transmission engagement part and a second transmission engagement part. The first transmission engagement part is connected to the first drive device and is used to input the rotational power of the first drive device. The second transmission engagement part is used to convert the rotational power into vertical reciprocating power. The electrode transfer assembly includes a connecting part and a gripping part. The connecting part cooperates with the second transmission engagement part. The electrode transfer assembly is used to reciprocate in the vertical direction under the drive of the second transmission engagement part and to transport the electrode through the gripping part.

2. The electrode handling device according to claim 1, characterized in that: The cam transmission mechanism includes a cylindrical cam and a cam follower that cooperates with the cylindrical cam, wherein the first transmission cooperation part is located at the axial end of the cylindrical cam. The second transmission engagement part includes a cam transmission curve disposed on the outer periphery of the cylindrical cam, the cam transmission curve slidingly engaging with the cam follower, and the cam follower being connected to the connecting part of the shifter assembly.

3. The electrode handling device according to claim 2, characterized in that: The cam transmission curve includes a high-position stop segment, a low-position stop segment, an acceleration push segment, and an acceleration return segment connected in sequence. The high-position stop segment, the low-position stop segment, the acceleration push segment, and the acceleration return segment form a loop. When the cam follower is in the high-position stop segment and the low-position stop segment, it corresponds to the rising end point and the falling end point of the plate shifting assembly, respectively. During the acceleration push segment, the cam follower is used to drive the plate shifting assembly to fall, and during the acceleration return segment, it is used to drive the plate shifting assembly to rise.

4. The electrode handling device according to claim 3, characterized in that: The gripping part is equipped with a suction cup assembly for adsorbing the electrode and a vacuum mechanism for controlling the operation of the suction cup assembly; the dwell time of the low-position stop section is synchronized with the vacuum action of the suction cup assembly adsorbing the electrode.

5. The pole piece handling apparatus of claim 1, wherein include: A first frame, the first drive device and the cam transmission mechanism are mounted on the first frame, and the first drive device and the cam transmission mechanism are arranged longitudinally; The second frame, wherein the plate-shifting assembly is disposed in the second frame; A sliding mechanism is located on the side of the first frame and is fixed relative to the first frame. The second frame is connected to the first frame through the sliding mechanism.

6. The pole piece handling apparatus of claim 3, wherein include: The sensor assembly, the first driving device, and the sensor assembly are both electrically connected to the controller. The sensor assembly is used to detect the position data of the shifting plate assembly. The controller controls the first driving device to operate according to the received position data so that the cam transmission mechanism resets to the initial position after the shifting plate is completed.

7. The electrode handling device according to claim 6, characterized in that: The sensor assembly includes a sensor and a sensing element. The sensor is located at a position corresponding to the high-position stop segment and / or the low-position stop segment. The sensing element is mounted on the piece shifting assembly. The sensor is used to detect the sensing element to obtain the initial position data of the piece shifting assembly corresponding to the high-position stop segment and / or the low-position stop segment.

8. The electrode handling device according to claim 4, characterized in that: The plate-shifting assembly also includes a second driving device for driving the suction cup assembly to rotate, wherein the acceleration return period, the high-position stop period, and the acceleration push period are synchronized with the rotational action of the second driving device.

9. A pole piece handling system characterized by, include: Lateral movement mechanism; as well as At least one set of transport components, the transport components including at least one electrode transport device as described in any one of claims 1-8, the lateral movement mechanism being used to drive the electrode transport device to move laterally, so as to transport the electrode carried on the electrode conveying device to the target position.

10. The electrode handling system according to claim 9, characterized in that: It also includes a centering table and a stacking table arranged along the movement direction of the lateral moving mechanism; The transport assembly includes a first transport mechanism and a second transport mechanism. The first transport mechanism is disposed between the electrode conveying device and the alignment table, and is used to grab the electrode carried on the electrode conveying device, rotate it at a specific angle, and place it on the alignment table. The alignment table is used to adjust the position of the electrode. The second transport mechanism is disposed between the alignment table and the stacking table, and is used to move the electrode after its position is adjusted to the stacking table. The first transport mechanism is an electrode transporting device as described in any one of claims 1-8.

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