Aligning and positioning device for battery piece and battery piece processing system using same

Abstract

The utility model discloses a restoration positioning device for a battery piece and a battery piece processing system using the restoration positioning device, and the restoration positioning device comprises a supporting platform which is provided with a platform surface; the correcting and positioning mechanism at least comprises four correcting and positioning assemblies which are arranged on the platform surface and are suitable for respectively corresponding to four side edges of the battery piece; each correcting and positioning assembly at least comprises a movable frame, a rotating frame rotationally matched with the movable frame, and at least one positioning wheel arranged on the rotating frame and used for abutting against one side edge of a battery piece; the rotating frame is suitable for rotating relative to the movable frame so as to adjust the matching angle of the rotating frame relative to the platform surface; the driving mechanism at least comprises a rotating ring which is arranged on the platform surface and is suitable for performing rotary motion, and four transmission pieces which are arranged between the rotating ring and the four movable frames one to one; the rotating ring is suitable for driving the four correcting and positioning assemblies to be relatively close to and away from each other by switching the forward rotation and reverse rotation running states of the rotating ring. According to the utility model, the accuracy of restoration and positioning in the systematic processing process of the battery piece can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cell production equipment, and in particular to a correction and positioning device for a cell and a cell processing system using the same. Background Art

[0002] Silicon solar cells are a type of solar cell. Based on the advantages of silicon being non-toxic, cheap, and having a large reserve in the earth's crust, most commercial solar cells are currently made from silicon wafers. The production process of cells often involves multiple processes, such as loading and slicing, laser scribing, screen printing, and slicing. In the prior art, cells are usually transported by conveyor belts. Since the entire production line is relatively long, cells are prone to tilt on the conveyor belts due to factors such as shaking or corner transmission during the conveyor belt transportation process. Therefore, during the circulation of cells, the correction structure of the cells is an essential component. If the cells lack a correction structure during the circulation process, the positioning of the cells will not be accurate enough, which will easily cause processing failures during the processing process, leading to an increase in the defective rate of cell production.

[0003] Specifically, the common alignment structures of battery cells are mostly in the form of single-side alignment, double-side alignment, three-side alignment or four-side alignment. Among them, the four-side alignment has the highest positioning accuracy for battery cells compared to single-side, double-side and three-side alignment. However, for the four-side alignment, the difficulty lies in the difficulty of achieving the synchronization of the four-side movement of the alignment mechanism. When the synchronization of the four-side movement cannot be guaranteed, not only can the accurate positioning of the battery cell not be achieved, but it will also directly lead to the problem of alignment failure.

[0004] In addition, the CCD positioning camera is a device that assists in positioning the product during the laser processing of the battery cell. It is usually completed by the light source board at the bottom of the battery cell to illuminate the battery cell in cooperation with the camera.

[0005] In this regard, the prior art generally installs the light source board horizontally below the flow channel, and uses a simple backlight photography method. In this case, the light source board is installed horizontally. If the wafers transported by the flow channel are fragmented, or if the shaking causes large pieces of debris to fall, once they fall on the light source board, it will cause coverage on the light source, and will continue to overlap. If the covered area is relatively large, the CCD positioning camera will not be able to correctly identify the wafers in transport, and will not be able to correctly photograph and position the wafers. In addition, the light source board is below the flow channel, and it is not convenient to clean the debris on the surface during the operation of the equipment. If the light source board needs to be cleaned, the flow channel must be stopped, which is equivalent to shutting down, resulting in insufficient production capacity.

[0006] Therefore, in view of the above problems existing in the systematic processing of battery cells,

[0007] In the case of four-side correction, it is necessary to optimize the design of the specific correction mechanism to ensure the synchronization of the four-side movement, so as to achieve the use requirement of improving the precise positioning of the battery cell. Utility Model Content

[0008] The second object of the present invention is to provide a device for correcting and positioning a battery cell, so as to solve the technical problem of improving the accuracy of positioning the battery cell.

[0009] The second object of the present invention is to provide a battery cell processing system to solve the technical problem of improving the accuracy of battery cell positioning during the systematic processing of battery cells.

[0010] The correcting positioning device for battery slices of the utility model is realized as follows:

[0011] A device for correcting and positioning a battery cell, comprising:

[0012] a support platform having a platform surface;

[0013] The return positioning mechanism comprises at least four return positioning components arranged on the platform surface and adapted to correspond to the four side edges of the battery sheet respectively; each return positioning component comprises at least a movable frame, a rotating frame rotatably matched with the movable frame, and at least one positioning wheel arranged on the rotating frame and used to abut against one side edge of the battery sheet; the rotating frame is adapted to rotate relative to the movable frame to adjust the matching angle of the rotating frame relative to the platform surface;

[0014] The driving mechanism at least comprises a rotating ring disposed on the platform surface and suitable for rotating motion, and four transmission members disposed one-to-one between the rotating ring and the four movable frames;

[0015] The rotating ring is suitable for driving the four alignment and positioning components to move relatively closer or farther away by switching its forward and reverse running states.

[0016] In an optional implementation of the utility model, the rotating frame includes a base plate provided with a positioning wheel, and two connecting frames connected to the base plate and arranged opposite to each other;

[0017] Each of the connecting frames is rotatably connected to the movable frame.

[0018] In an optional implementation of the present invention, each of the correction and positioning components further includes a pair of guide frames that match the two connecting frames one-to-one;

[0019] Each of the guide frames is provided with a guide groove that matches the corresponding connecting frame, and the guide frame is provided with a guide member suitable for moving along the guide groove; wherein

[0020] Each of the guide grooves comprises an arc groove and a straight groove which are integrally formed; and the arc groove is located on a side of the straight groove which faces away from the battery sheet.

[0021] In an optional implementation of the present invention, a connection position adjustment structure is further provided between the base plate in each rotating frame and the corresponding two connecting frames; and

[0022] The connection position adjustment structure comprises a connection column arranged on the connection frame and a waist-shaped groove arranged on the base plate and adapted to the connection column; and

[0023] The long axis direction of the waist-shaped groove extends along the moving direction of the movable frame.

[0024] In an optional implementation of the utility model, the two connecting frames in each of the rotating frames are rotatably connected to the movable frame via a positioning roller.

[0025] In an optional implementation of the utility model, the correction and positioning mechanism further includes four guide components arranged on the platform surface and matching the four correction and positioning components one to one;

[0026] Each of the guide components comprises at least one slide rail arranged on the platform surface, and a slide groove formed on the movable frame and suitable for slidingly cooperating with the slide rail.

[0027] In an optional implementation of the present invention, the driving mechanism further includes a power structure for driving the rotating ring to perform a rotational motion.

[0028] The battery sheet processing system of the utility model is realized as follows:

[0029] A battery cell processing system comprises: the aforementioned battery cell alignment and positioning device, a conveying mechanism disposed on the platform surface for supporting and conveying the battery cell, and a light source board disposed on the conveying mechanism and suitable for forming irradiation light from the bottom of the battery cell.

[0030] In an optional implementation of the utility model, the transmission mechanism includes two transmission components distributed in pairs;

[0031] Each of the transmission components includes a conveyor belt and a driving structure for driving the conveyor belt to perform a rotational motion; a supporting surface for supporting and transporting battery cells is formed by two conveyor belts.

[0032] In an optional implementation of the present invention, the two transmission components are respectively arranged on both sides of the rotating ring; and

[0033] Two of the four correcting and positioning components are arranged one-to-one on a side of a transmission component facing away from the rotating ring.

[0034] By adopting the above technical solution, the utility model has the following beneficial effects: the correction and positioning device for the battery cell of the utility model cooperates with the light source board through the correction and positioning mechanism, so that when the light source board is covered by debris on the battery cell and cannot normally provide illumination light for the camera to take pictures, it can still correctly and accurately position the battery cell, thereby avoiding the problem of the device stopping working and causing a decrease in production capacity.

[0035] Furthermore, the alignment mechanism used includes four alignment components, and the four alignment components are respectively in contact with one side edge of the battery cell, so that the accuracy of alignment of the battery cell is improved through the cooperation of the four alignment components. Furthermore, for the four alignment components, the same driving mechanism is used to achieve the regulation of their operating states, so that the synchronization of the operating states of the four alignment components can be effectively guaranteed, thereby ensuring the reliable operation of the four alignment components. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 1 is a schematic diagram of the structure of a first-viewing angle of view of a device for correcting and positioning a battery cell according to an embodiment of the present application;

[0037] Figure 2 2 is a schematic diagram of the structure of the device for correcting and positioning a battery cell according to an embodiment of the present application from a second viewing angle;

[0038] Figure 3 It is a third perspective structural diagram of the correction positioning device for a battery cell according to an embodiment of the present application.

[0039] In the figure: supporting platform 1, platform surface 11, movable frame 21, positioning wheel 22, base plate 23, connecting frame 24, guide frame 25, guide groove 26, arc groove 261, straight groove 262, guide member 27, waist-shaped groove 28, connecting column 29, positioning roller 3, slide rail 41, slide groove 42, transmission member 5, rotating ring 6, motor 7, light source board 8, fixed bracket 91, conveyor belt 92. DETAILED DESCRIPTION

[0040] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0041] Example 1: Please refer to Figures 1 to 3 As shown, this embodiment provides a correction and positioning device for a battery cell, comprising: a support platform 1 and a correction and positioning mechanism and a driving mechanism arranged on the support platform 1.

[0042] First, a support platform 1 is provided, which has a platform surface 11 to form a loading area for the alignment positioning mechanism.

[0043] Secondly, regarding the correction and positioning mechanism, it at least includes four correction and positioning components arranged on the platform surface 11 and suitable for corresponding to the four side edges of the battery cell respectively; each correction and positioning component includes at least a movable frame 21, a rotating frame rotatably matched with the movable frame 21, and at least one positioning wheel 22 arranged on the rotating frame for abutting against one side edge of the battery cell; the rotating frame is suitable for rotating relative to the movable frame 21 to adjust the matching angle of the rotating frame relative to the platform surface 11.

[0044] Based on the above situation, that is to say, the rotating frame in this embodiment can not only move synchronously with the movable frame 21, but also rotate relative to the movable frame 21 during the movement, that is, the movable frame 21 has only one movable form, while the rotating frame has two movable forms at the same time.

[0045] In order to meet the above usage requirements, this embodiment also makes the following designs:

[0046] Here, a rotating frame in an optional implementation is described, which includes a base plate 23 provided with a positioning wheel 22 , and two connecting frames 24 connected to the base plate 23 and arranged opposite to each other; each connecting frame 24 is rotatably connected to the movable frame 21 .

[0047] Furthermore, each alignment and positioning assembly also includes a pair of guide frames 25 that match the two connecting frames 24 one by one; each guide frame 25 is provided with a guide groove 26 that matches the corresponding connecting frame 24, and the guide frame 25 is provided with a guide member 27 suitable for moving along the guide groove 26; each guide groove 26 includes an arc groove 261 and a linear groove 262 that are integrally formed; and the arc groove 261 is located on the side of the linear groove 262 that faces away from the battery cell. Under this structure, the guide groove 26 defines the overall movement trajectory of the connecting frame 24, and the specific connecting frame 24 can rotate relative to the movable frame 21 along the arc groove 261. When the connecting frame 24 moves to the linear groove 262, the connecting frame 24 can perform synchronous linear motion with the movable frame 21.

[0048] On the basis of the above structure, in order to maximize the applicability of the alignment and positioning mechanism of this embodiment to battery cells of different sizes, a connection position adjustment structure is further provided between the substrate 23 in each rotating frame and the corresponding two connecting frames 24 in this embodiment.

[0049] Here, an optional implementation is given as an example with reference to the accompanying drawings: the connection position adjustment structure includes a connection column 29 provided on the connection frame 24 and a waist-shaped groove 28 provided on the base plate 23 and adapted to the connection column 29; and the long axis direction of the waist-shaped groove 28 extends along the movement direction of the movable frame 21. Here, by manually adjusting the position of the connection column 29 in the waist-shaped groove 28, the matching position formed by the base plate 23 and the connection frame 24 can be adjusted.

[0050] In addition, it is necessary to explain that, since the pair of connecting frames 24 in this embodiment need to move synchronously, in order to improve the consistency of the movement of the two and ensure the stable movement of the substrate 23, this embodiment also connects the two connecting frames 24 in each rotating frame with the movable frame 21 through a positioning roller 3. The two optional connecting frames 24 are respectively fixedly connected to the two ends of the positioning roller 3, and the positioning roller 3 itself is in a rotational matching relationship with the movable frame 21, so that the two connecting frames 24 can also move synchronously relative to the movable frame 21 under the action of the positioning roller 3.

[0051] In addition, it should be noted that the positioning wheel 22 is rotatably mounted on the base plate 23, and the positioning wheel 22 is made of an elastic material such as rubber. The positioning wheel 22 made of such a material can reduce the wear on the side edges of the battery cell.

[0052] In addition, it is necessary to explain that the return positioning mechanism also includes four guide components arranged on the platform surface 11 and matched with the four return positioning components one by one; each guide component includes at least one slide rail 41 arranged on the platform surface 11, and a slide groove 42 formed on the movable frame 21 and suitable for sliding with the slide rail 41. The guide components here are mainly used to accurately control the movement trajectory of the movable frame 21 to prevent it from being deviated.

[0053] Regarding the slide rails 41 here, it is necessary to explain that the slide rails 41 of each guide assembly define the movement direction of the movable frame 21 in the extension direction of the flat table, and the extension direction of the slide rails 41 of each guide assembly is perpendicular to the side end surface of the battery cell corresponding to the movable frame 21 matched with this guide assembly. In this way, the relative approach and separation of the four alignment and positioning assemblies are achieved through the vertical movement of each movable frame 21 relative to the side end surface of the battery cell.

[0054] Finally, the driving mechanism includes at least a rotating ring 6 disposed on the platform surface 11 and suitable for rotating motion, and four transmission members 5 disposed one-to-one between the rotating ring 6 and the four movable frames 21; based on this structure, the rotating ring 6 is suitable for driving the four return positioning components to move relatively closer or farther away by switching its forward and reverse running states. The transmission member 5 here can be a pull rod, one end of which is rotationally connected to the rotating ring 6, and the other end of which is rotationally connected to the movable frame 21.

[0055] Of course, it is understandable that the driving mechanism also includes a power structure for driving the rotating ring 6 to perform a rotational motion. The power structure can be directly or indirectly connected to the motor 7, and the rotating ring 6 can be driven to perform a rotational motion through the design of the motor 7.

[0056] For the four correcting and positioning components in this embodiment, the same driving mechanism is used to realize the regulation of their operating status, so that the synchronization of the operating status of the four correcting and positioning components can be effectively guaranteed, thereby ensuring the reliable operation of the four correcting and positioning components.

[0057] In summary, the specific usage and principle of the battery cell alignment device of this embodiment are as follows:

[0058] When the battery cell is in place, the motor 7 rotates forward (or reversely), and the rotating ring 6 also starts to work. The rotating ring 6 drives the four transmission members 5 connected to the rotating ring 6 to move synchronously. The movement of the transmission member 5 pulls the movable frame 21 to move on the slide rail 41, so that the movable frames 21 of the four return and positioning components are relatively close. In this process, the rotating frame moves with the movable frame 21, and because of the cooperation of the guide member 27 and the guide groove 26, the cooperation angle of the rotating frame relative to the platform surface 11 gradually changes from an inclined state to a vertical state, and when the movable frame 21 moves into place, the positioning wheel 22 positions the four side edges of the battery cell to achieve the return and positioning effect of the battery cell. When the return and positioning of the battery cell is completed, the motor 7 reverses (or rotates forward), and the rotating ring 6, the transmission member 5 and the movable frame 21 and the rotating frame move synchronously. At this time, the movable frames 21 of the four return and positioning components are relatively far away, so that the positioning wheel 22 leaves the battery cell. In this regard, that is to say, in the process of correcting the positioning of the battery cell, it is only necessary to control the operating state of the motor 7, and no other unnecessary operation process is required, so the operation is convenient, efficient and highly accurate.

[0059] Embodiment 2: Based on the alignment and positioning device for battery cells in Embodiment 1, this embodiment provides a battery cell processing system, including: the alignment and positioning device for battery cells in Embodiment 1, a conveying mechanism provided on the platform surface 11 for supporting and conveying battery cells, and a light source board 8 provided on the conveying mechanism for forming irradiation light from the bottom of the battery cells. Of course, it should be noted here that the battery cell processing system also includes a CCD positioning camera provided above the battery cells transferred to the conveying mechanism.

[0060] Specifically, the conveying mechanism includes two transmission components distributed in pairs; each transmission component includes a conveyor belt 92 and a driving structure for driving the conveyor belt 92 to perform a rotary motion; the two conveyor belts 92 are used to form a support surface for supporting and conveying the battery cells. It should be noted that both sides of the conveyor belts 92 used by the two transmission components have extended flow channels, which are used to convey the battery cells from the previous station to the return positioning device and the subsequent stations, so that the battery cells can flow smoothly during the processing of the entire system.

[0061] The specific driving structure here includes a fixed bracket 91 and a transmission wheel arranged on the fixed bracket 91 for cooperating with the conveyor belt 92. During the operation of the transmission component, the fixed bracket 91 remains stationary, while the transmission wheel and the conveyor belt 92 both move.

[0062] Based on the above structure, it should be noted that the two transmission components are respectively arranged on both sides of the rotating ring 6; and two of the four alignment components are one-to-one arranged on the side of a transmission component facing away from the rotating ring 6.

[0063] For the battery cell processing system of this embodiment:

[0064] When the battery cells are transferred to the conveyor belt 92, the light source panel 8 provides supplementary light for the battery cells, and the CCD positioning camera located above the battery cells takes a picture of the battery cells. When the picture is taken correctly and the position of the battery cells is determined to be accurate, the positioning device is restored to stop working, and the conveyor belt 92 continues to run, transporting the battery cells to the flow channel for transfer to the next workstation.

[0065] With the long-term use of the battery cell processing system, the light source board 8 is covered by the debris dropped during the transmission of the battery cell and cannot provide light source support for the camera. The CCD positioning camera's capture accuracy of the battery cell position is reduced. For the battery cell transferred to the conveyor belt 92, the correction positioning device works to realize the correction positioning of the battery cell and then the conveyor belt 92 continues to run to transport the battery cell to the flow channel for transfer to the next workstation.

[0066] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0067] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 invention.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0070] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0071] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A device for correcting and positioning a battery cell, characterized in that: include: a support platform having a platform surface; The return positioning mechanism comprises at least four return positioning components arranged on the platform surface and adapted to correspond to the four side edges of the battery sheet respectively; each return positioning component comprises at least a movable frame, a rotating frame rotatably matched with the movable frame, and at least one positioning wheel arranged on the rotating frame and used to abut against one side edge of the battery sheet; the rotating frame is adapted to rotate relative to the movable frame to adjust the matching angle of the rotating frame relative to the platform surface; The driving mechanism at least comprises a rotating ring disposed on the platform surface and suitable for rotating motion, and four transmission members disposed one-to-one between the rotating ring and the four movable frames; The rotating ring is suitable for driving the four alignment and positioning components to move relatively closer or farther away by switching its forward and reverse running states.

2. The device for correcting and positioning a battery cell according to claim 1, characterized in that: The rotating frames each include a base plate provided with a positioning wheel, and two connecting frames connected to the base plate and arranged opposite to each other; Each of the connecting frames is rotatably connected to the movable frame.

3. The device for correcting and positioning a battery cell according to claim 2, characterized in that: Each of the correction and positioning components also includes a pair of guide frames that match the two connecting frames one-to-one; Each of the guide frames is provided with a guide groove that matches the corresponding connecting frame, and the guide frame is provided with a guide member suitable for moving along the guide groove; wherein Each of the guide grooves comprises an arc groove and a straight groove which are integrally formed; and the arc groove is located on a side of the straight groove which faces away from the battery sheet.

4. The device for correcting and positioning a battery cell according to claim 2 or 3, characterized in that: A connection position adjustment structure is also provided between the base plate in each rotating frame and the corresponding two connecting frames; and The connection position adjustment structure comprises a connection column arranged on the connection frame and a waist-shaped groove arranged on the base plate and adapted to the connection column; and The long axis direction of the waist-shaped groove extends along the moving direction of the movable frame.

5. The device for correcting and positioning a battery cell according to claim 2 or 3, characterized in that: The two connecting frames in each rotating frame are rotatably connected with the movable frame through a positioning roller.

6. The device for correcting and positioning a battery cell according to claim 1, characterized in that: The correction and positioning mechanism also includes four guide components arranged on the platform surface and matched with the four correction and positioning components in a one-to-one manner; Each of the guide components comprises at least one slide rail arranged on the platform surface, and a slide groove formed on the movable frame and suitable for slidingly cooperating with the slide rail.

7. The device for correcting and positioning a battery cell according to claim 1, characterized in that: The driving mechanism also includes a power structure for driving the rotating ring to perform a rotary motion.

8. A battery cell processing system, characterized in that: include: A positioning device for a battery cell as described in any one of claims 1 to 7, a conveying mechanism provided on the platform surface for supporting and conveying the battery cell, and a light source board provided on the conveying mechanism suitable for forming irradiation light from the bottom of the battery cell.

9. The battery cell processing system according to claim 8, characterized in that: The transmission mechanism includes two transmission components distributed in pairs; Each of the transmission components includes a conveyor belt and a driving structure for driving the conveyor belt to perform a rotational motion; a supporting surface for supporting and transporting battery cells is formed by two conveyor belts.

10. The battery cell processing system according to claim 9, characterized in that: The two transmission components are respectively arranged on two sides of the rotating ring; and Two of the four correcting and positioning components are arranged one-to-one on a side of a transmission component facing away from the rotating ring.

Images