Precise positioning device for solar cell

Abstract

The utility model discloses a solar cell precise positioning device, which comprises a base, a plurality of feeding transmission assemblies, a plurality of pre-positioning assemblies, a plurality of precise positioning assemblies, a visual detection assembly and a blanking assembly, and is characterized in that the plurality of feeding transmission assemblies are connected to the base; the plurality of pre-positioning assemblies are in one-to-one correspondence with the plurality of feeding transmission assemblies, and the pre-positioning assemblies clamp the solar cells on the two sides of the corresponding feeding transmission assemblies in the second direction; the plurality of fine positioning assemblies are in one-to-one correspondence with the plurality of feeding transmission assemblies, each fine positioning assembly is arranged on the base, and the fine positioning assemblies carry out angle and / or position adjustment on the solar cells on one side of the solar cells in the second direction; the visual detection assembly is arranged on the side, away from the base, of the feeding conveying assembly. The discharging assembly is arranged on the side, away from the base, of the feeding conveying assembly and has the freedom degree of moving in the first direction. The battery positioning device can solve the problem that an existing battery positioning mode is poor in positioning precision.

Description

Technical Field

[0001] This application relates to the field of solar cell positioning technology, and in particular to a precision positioning device for solar cells. Background Technology

[0002] With the increasing level of automation, solar cell positioning devices have become an indispensable key device in the manufacturing process of solar cell modules, such as screen printing, laser scribing, and string welding. Their positioning accuracy directly or indirectly affects the processing quality of the finished product. In particular, with the technological upgrading of the photovoltaic industry, there are higher requirements for the positioning accuracy of each link.

[0003] In the solar cell manufacturing process, the existing cell positioning methods mainly include the following:

[0004] 1. The positioning method using the positioning wheel with opposite sides is used. The machining error and installation error of the positioning wheel will affect the positioning result. At the same time, there are also deviations in the manufacturing process of different cells. When positioning cells with negative deviation, the positioning wheel cannot contact the edge of the cell. When positioning cells with positive deviation, the positioning wheel will deform the cell.

[0005] 2. Three-axis platform positioning is used. This positioning method has high accuracy, but due to the large size of the three-axis platform, it is not suitable for positioning multiple groups of battery cells at the same time, and this positioning method is also more expensive.

[0006] 3. The method of positioning the battery cell by two adjacent sides is adopted. This method first uses a set of positioning wheels to push one side of the battery cell, and then uses positioning wheels to push the other side of the battery cell to achieve positioning of the battery cell. This method will be affected by the machining error and assembly error of the positioning wheels, which will affect the final positioning accuracy.

[0007] In conclusion, there is an urgent need to design a precision positioning device for solar cells to solve the problem of poor positioning accuracy in existing battery positioning methods.

[0008] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Utility Model Content

[0009] The main purpose of this application is to provide a precision positioning device for solar cells, which aims to solve the problem of poor positioning accuracy in existing battery positioning methods.

[0010] To achieve the above objectives, this application provides a precision positioning device for solar cells, used for positioning solar cells, comprising: a base, multiple feeding and conveying components, multiple pre-positioning components, multiple fine positioning components, a vision inspection component, and a unloading component. The multiple feeding and conveying components are all connected to the base, and the feeding and conveying components transport solar cells located on them along a first direction. The multiple pre-positioning components correspond one-to-one with the multiple feeding and conveying components, and the pre-positioning components clamp the solar cells on both sides of the corresponding feeding and conveying components along a second direction for pre-positioning. The second direction is the positioning direction of the pre-positioning components and intersects with the first direction. The multiple fine positioning components are connected to the multiple feeding and conveying components. Each of the feeding and conveying components corresponds to one another, and each of the precision positioning components is disposed on the base. The precision positioning component adjusts the angle and / or position of the solar cell on one side of the solar cell along the second direction for precision positioning. The vision detection component is disposed on the side of the feeding and conveying component away from the base. The vision detection component is used to collect the positioning information of the solar cell after positioning. The unloading component is disposed on the side of the feeding and conveying component away from the base and has the freedom to move in the first direction. The unloading component is used to convey the positioned solar cell to the next station. The unloading component also adjusts the position of the solar cell in the first direction.

[0011] Optionally, the feeding and conveying assembly includes: a support plate, a motor, a drive pulley, a driven pulley, a conveying flat belt, a feeding detection sensor, and a light source plate. The support plate is connected to the base; the motor is fixed to the support plate and has a power output shaft; the drive pulley is disposed on the support plate and connected to the power output shaft of the motor via a belt; the driven pulley is connected to the drive pulley via a belt; the conveying flat belt is disposed on the outer periphery of the driven pulley and drives along the first direction, wherein the solar cell is located on the side of the conveying flat belt away from the support plate; the feeding detection sensor is fixed to the support plate and located at the feeding end of the conveying flat belt; the light source plate is fixed to the support plate and located on the side of the conveying flat belt away from the solar cell, and the light source plate is used to provide backlighting.

[0012] Optionally, the passive pulleys are provided in two sets, and the two sets of passive pulleys are spaced apart in the second direction; the transmission flat belt is provided in two sets and is connected to the two sets of passive pulleys in a one-to-one correspondence, and the transmission flat belt is a transparent belt.

[0013] Optionally, the pre-positioning component includes: a first pre-positioning wheel seat, a first pre-positioning cylinder, a second pre-positioning wheel seat, and a second pre-positioning cylinder, wherein the first pre-positioning wheel seat is disposed on the side of the feeding conveying component away from the base and located on one side of the feeding conveying component in the second direction; the first pre-positioning cylinder is connected to the first pre-positioning wheel seat, and the output end of the first pre-positioning cylinder faces the feeding conveying component; the second pre-positioning wheel seat is disposed on the side of the feeding conveying component away from the base and located on the other side of the feeding conveying component in the second direction; the second pre-positioning cylinder is connected to the second pre-positioning wheel seat, and the output end of the second pre-positioning cylinder faces the feeding conveying component.

[0014] Optionally, the pre-positioning component further includes: a plurality of first pre-positioning wheels and a plurality of second pre-positioning wheels, wherein the plurality of first pre-positioning wheels are all disposed on the side of the first pre-positioning wheel seat facing the base; the plurality of second pre-positioning wheels are all disposed on the side of the second pre-positioning wheel seat away from the base; wherein the first pre-positioning wheels and the second pre-positioning wheels are both made of elastic material.

[0015] Optionally, the precision positioning assembly includes: a connecting plate, a precision positioning motor, two slide rails, a slider, a positioning lead screw, an origin sensor, and a push plate mechanism. The connecting plate is fixed to the base; the precision positioning motor is connected to the connecting plate and has a power output shaft; the two slide rails are fixed to the connecting plate and extend along the second direction; the slider is slidably engaged with the two slide rails; the positioning lead screw extends along the second direction and is connected to the power output shaft of the precision positioning motor, passing through the slider and being threadedly connected to it; the origin sensor is fixed to the connecting plate; the push plate mechanism is fixed to the side of the slider away from the base and has a degree of freedom to move along the second direction; wherein the connecting plate and the push plate mechanism are located on the same side of the feeding and conveying assembly in the second direction.

[0016] Optionally, the push plate mechanism includes: an adjusting plate and a positioning push plate, wherein the adjusting plate is fixed to the side of the slider away from the base; the positioning push plate is fixed to the side of the adjusting plate facing the solar cell; wherein an adjusting spring and a micrometer head are respectively provided on the side of the adjusting plate away from the solar cell, and the adjusting spring and the micrometer head are fixed to the slider.

[0017] Optionally, a drive pulley is provided on the power output shaft of the precision positioning motor, and a driven pulley is provided at one end of the positioning screw. The drive pulley and the driven pulley are connected by a belt.

[0018] Optionally, the visual inspection component includes: a camera mounting base, multiple light-emitting elements, and multiple cameras, wherein the camera mounting base is located on the side of the feeding and conveying component away from the base; multiple light-emitting elements are disposed on the camera mounting base; multiple cameras are disposed on the camera mounting base and correspond one-to-one with the multiple light-emitting elements; wherein each camera is disposed on the side of the corresponding light-emitting element away from the feeding and conveying component, and both the camera and the light-emitting element are facing the feeding and conveying component.

[0019] Optionally, the unloading assembly includes: a module fixing plate, an unloading module, multiple lifting cylinders, and multiple unloading suction cups, wherein the module fixing plate extends along the first direction; the unloading module is slidably disposed on the module fixing plate and has a degree of freedom of movement along the first direction; the multiple lifting cylinders are all disposed on the side of the unloading module facing the base; the multiple unloading suction cups correspond one-to-one with the multiple lifting cylinders, and each unloading suction cup is installed at the piston rod end of the corresponding lifting cylinder.

[0020] This application discloses a precision positioning device for solar cells, wherein the base of the device serves to fix the entire device. Each feeding and conveying component transports the solar cells to the corresponding pre-positioning component, which first pre-positions the solar cells, and then the corresponding precision positioning component precisely positions them, completing the positioning of the solar cells. During the entire positioning process, a vision detection component is responsible for photographing and detecting the positioning of the solar cells, making the positioning more accurate; the unloading component is responsible for unloading the processed solar cells. Structurally, this application uses a pre-positioning component and a precision positioning component to position the solar cells, thereby achieving precision positioning. The real-time position of the solar cells is fed back by the vision detection component, and then the unloading component picks up the solar cells. Furthermore, this positioning method is suitable for the simultaneous positioning of single, double, and multiple solar cells; it is also suitable for the simultaneous positioning of single-row, double-row, and multi-row solar cells. For positioning different numbers of solar cells, only the dimensions of the pre-positioning component and the precision positioning component need to be adjusted to complete the corresponding positioning. Therefore, the precision positioning device for solar cells involved in this application has high positioning accuracy when simultaneously positioning multiple solar cells. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a precision positioning device for solar cells provided in an embodiment of this application;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the feed conveyor assembly;

[0023] Figure 3 for Figure 1 A schematic diagram of the pre-positioning component in the middle;

[0024] Figure 4 for Figure 1 Schematic diagram of the intermediate precision positioning component;

[0025] Figure 5 for Figure 1 A schematic diagram of the structure of the vision detection component;

[0026] Figure 6 for Figure 1 A schematic diagram of the structure of the feeding and unloading assembly.

[0027] The components include: 1. Solar cell; 2. Base; 3. Feeding and conveying assembly; 301. Support plate; 302. Motor; 303. Drive pulley; 304. Driven pulley; 305. Conveyor belt; 306. Feed detection sensor; 307. Light source board; 4. Pre-positioning assembly; 401. First pre-positioning wheel seat; 402. First pre-positioning cylinder; 403. Second pre-positioning wheel seat; 404. Second pre-positioning cylinder; 405. First pre-positioning wheel; 406. Second pre-positioning wheel; 5. Precision positioning assembly; 501. Connector. 502. Precision positioning motor; 503. Slide rail; 504. Slider; 505. Positioning screw; 506. Origin sensor; 507. Push plate mechanism; 508. Adjusting plate; 509. Positioning push plate; 510. Drive pulley; 511. Driven pulley; 512. Adjusting spring; 513. Micrometer head; 6. Vision inspection assembly; 601. Camera mounting base; 602. Light-emitting element; 603. Camera; 7. Unloading assembly; 701. Module fixing plate; 702. Unloading module; 703. Lifting cylinder; 704. Unloading suction cup.

[0028] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] See also Figure 1This application provides a precision positioning device for solar cells, used to position solar cells 1. The precision positioning device may include: a base 2, multiple feeding and conveying components 3, multiple pre-positioning components 4, multiple precision positioning components 5, a vision inspection component 6, and a unloading component 7. The multiple feeding and conveying components 3 are all connected to the base 2, and the feeding and conveying components 3 convey the solar cells 1 located on them along a first direction. The multiple pre-positioning components 4 correspond one-to-one with the multiple feeding and conveying components 3, and the pre-positioning components 4 clamp the solar cells 1 on both sides of the corresponding feeding and conveying components 3 along a second direction for pre-positioning. The second direction is the positioning direction of the pre-positioning component and is consistent with the first direction. The components intersect in one direction; multiple precision positioning components 5 correspond one-to-one with multiple feeding and conveying components 3, each precision positioning component 5 is set on the base 2, and the precision positioning component 5 adjusts the angle and / or position of the solar cell 1 on one side of the solar cell 1 along the second direction for precision positioning; the vision detection component 6 is set on the side of the feeding and conveying component 3 away from the base 2, and the vision detection component 6 is used to collect the positioning information of the solar cell 1 after positioning; the unloading component 7 is set on the side of the feeding and conveying component 3 away from the base 2 and has the freedom to move in the first direction, and the unloading component 7 is used to transfer the positioned solar cell 1 to the next station, and the unloading component 7 also adjusts the position of the solar cell 1 in the first direction.

[0034] In this embodiment, please refer to Figure 1 The first direction is the X direction; the second direction is the Y direction. The base 2 serves to fix the entire device. Each feeding and conveying component 3 transports the solar cell 1 to the corresponding pre-positioning component 4. The pre-positioning component 4 first pre-positions the solar cell 1, and then the corresponding precision positioning component 5 precisely positions the solar cell 1, completing the positioning of the solar cell 1. During the entire positioning process, the vision detection component 6 is responsible for photographing and detecting the positioning of the solar cell 1, making the positioning of the solar cell 1 more accurate; the unloading component 7 is responsible for unloading the processed solar cell 1, and at the same time adjusting the position of the solar cell 1 in the first direction. In terms of structure, this application uses the pre-positioning component 4 and the precision positioning component 5 to position the solar cell 1, thereby achieving precise positioning. The real-time position of the solar cell 1 is fed back by the vision detection component 6, and then the solar cell 1 is picked up by the unloading component 7. In addition, this positioning method is suitable for the simultaneous positioning of single, double, and multiple solar cells 1; at the same time, this positioning method is also suitable for the simultaneous positioning of single-row, double-row, and multi-row solar cells 1. For positioning different numbers of solar cells 1, only the dimensions of the pre-positioning component 4 and the precision positioning component 5 need to be adjusted to complete the corresponding positioning. Therefore, the precision positioning device for solar cells involved in this application can simultaneously position multiple solar cells 1 with high positioning accuracy.

[0035] See also Figure 2 The feeding conveying assembly 3 may include: a support plate 301, a motor 302, a drive pulley 303, a driven pulley 304, a conveying flat belt 305, a feeding detection sensor 306, and a light source plate 307. The support plate 301 is connected to the base 2; the motor 302 is fixed to the support plate 301 and has a power output shaft; the drive pulley 303 is disposed on the support plate 301 and connected to the power output shaft of the motor 302 via a belt; the driven pulley 304 is connected to the drive pulley 305. The three components are connected by a belt; the transmission flat belt 305 is disposed on the outer periphery of the passive pulley 304 and drives along the first direction, wherein the solar cell 1 is located on the side of the transmission flat belt 305 away from the support plate 301; the feed detection sensor 306 is fixed on the support plate 301 and is located at the feed end of the transmission flat belt 305; the light source plate 307 is fixed on the support plate 301 and is located on the side of the transmission flat belt 305 away from the solar cell 1, and the light source plate 307 is used to provide backlight.

[0036] Specifically, during the conveying of solar cell 1, the support plate 301 supports the entire feeding and conveying assembly 3. During the conveying process, the motor 302 starts, driving the active pulley 303 to rotate. The active pulley 303 drives the passive pulley 304 to rotate, which in turn drives the conveyor belt 305 to move, thus conveying the solar cell 1. The feeding detection sensor 306 is used to provide feedback on the solar cell 1 entering the positioning station. The light source plate 307 supports the conveyor belt 305 and provides backlighting for subsequent imaging by the visual inspection assembly 6.

[0037] See also Figure 2 Two sets of passive pulleys 304 are provided, and the two sets of passive pulleys 304 are spaced apart in the second direction; two sets of transmission flat belts 305 are provided and are connected to the two sets of passive pulleys 304 in a one-to-one correspondence, and the transmission flat belts 305 are transparent belts.

[0038] In this embodiment, at least two sets of passive pulleys 304 are used to drive the transmission flat belt 305. In other embodiments, multiple sets of passive pulleys 304 can be used to make the movement of the transmission flat belt 305 more stable. The transmission flat belt 305 is made transparent so that the backlight can cover the entire solar cell 1 when the visual inspection component 6 takes a picture of the solar cell 1 later.

[0039] See also Figure 3The pre-positioning component 4 may include: a first pre-positioning wheel seat 401, a first pre-positioning cylinder 402, a second pre-positioning wheel seat 403, and a second pre-positioning cylinder 404. The first pre-positioning wheel seat 401 is disposed on the side of the feeding conveying component 3 away from the base 2 and located on one side of the feeding conveying component 3 in the second direction. The first pre-positioning cylinder 402 is connected to the first pre-positioning wheel seat 401, and the output end of the first pre-positioning cylinder 402 faces the feeding conveying component 3. The second pre-positioning wheel seat 403 is disposed on the side of the feeding conveying component 3 away from the base 2 and located on the other side of the feeding conveying component 3 in the second direction, and the second pre-positioning wheel seat 403 is disposed opposite to the first pre-positioning wheel seat 401. The second pre-positioning cylinder 404 is connected to the second pre-positioning wheel seat 403, and the output end of the second pre-positioning cylinder 404 faces the feeding conveying component 3.

[0040] During the pre-positioning of the solar cell 1, the solar cell 1 is conveyed to the positioning station by the feeding and conveying assembly 3, and the piston rods of the first pre-positioning cylinder 402 and the second pre-positioning cylinder 404 extend simultaneously to pre-position the solar cell 1.

[0041] See also Figure 3 The pre-positioning component 4 may further include: a plurality of first pre-positioning wheels 405 and a plurality of second pre-positioning wheels 406, wherein the plurality of first pre-positioning wheels 405 are all disposed on the side of the first pre-positioning wheel seat 401 facing the base 2; the plurality of second pre-positioning wheels 406 are all disposed on the side of the second pre-positioning wheel seat 403 away from the base 2, wherein the first pre-positioning wheels 405 and the second pre-positioning wheels 406 are both made of elastic material.

[0042] In this embodiment, multiple first pre-positioning wheels 405 and multiple second pre-positioning wheels 406 are provided to facilitate the positioning of the solar cell 1. During the pre-positioning process, the first pre-positioning wheel seats 401 and the second pre-positioning wheel seats 403 are made of elastic materials to avoid damage to the solar cell 1.

[0043] See also Figure 4The precision positioning component 5 may include: a connecting plate 501, a precision positioning motor 502, two slide rails 503, a slider 504, a positioning lead screw 505, an origin sensor 506, and a push plate mechanism 507. The connecting plate 501 is fixed to the base 2; the precision positioning motor 502 is connected to the connecting plate 501 and has a power output shaft; the two slide rails 503 are fixed to the connecting plate 501 and extend along a second direction; the slider 504 is slidably engaged with the two slide rails 501. 03; The positioning screw 505 extends along the second direction and is connected to the power output shaft of the precision positioning motor 502. The positioning screw 505 passes through the slider 504 and is threadedly connected to the slider 504; The origin sensor 506 is fixed on the connecting plate 501; The push plate mechanism 507 is fixed on the side of the slider 504 away from the base 2. The push plate mechanism 507 has a degree of freedom to move along the second direction; wherein, the connecting plate 501 and the push plate mechanism 507 are located on the same side of the feeding and conveying assembly 3 in the second direction.

[0044] Specifically, during the precise positioning of the solar cell 1, the precision positioning motor 502 is activated. Driven by the precision positioning motor 502, the positioning lead screw 505 begins to rotate. Due to the presence of the two slide rails 503 and the slider 504, the rotation of the positioning lead screw 505 drives the slider 504 to move along the two parallel slide rails 503. Since the pusher mechanism 507 is fixed on the slider 504, the movement of the slider 504 also moves the pusher mechanism 507. The movement of the pusher mechanism 507 can clamp the solar cell 1, thereby achieving precise positioning of the solar cell 1. The origin sensor 506 is used to determine that the pusher mechanism 507 is in the retracted state, at which time the solar cell 1 can be fed and transported. In some embodiments, the precision positioning motor 502 can be a servo motor. The advantage of using a servo motor is that it can precisely control the positioning position and provide power for positioning.

[0045] See also Figure 4 The push plate mechanism 507 may include: an adjusting plate 508 and a positioning push plate 509, wherein the adjusting plate 508 is fixed to the side of the slider 504 away from the base 2; the positioning push plate 509 is fixed to the side of the adjusting plate 508 facing the solar cell 1; wherein the adjusting plate 508 away from the solar cell 1 is provided with an adjusting spring 512 and a micrometer head 513, and the adjusting spring 512 and the micrometer head 513 are fixed to the slider 504.

[0046] In this embodiment, the contact surface between the positioning push plate 509 and the solar cell 1 is precision machined to ensure the consistency of simultaneous positioning of multiple solar cells 1. The positioning push plate 509 is made of a high-hardness material to reduce damage to the contact surface with the solar cell 1. The adjusting plate 508 is used to mount the positioning push plate 509 and can adjust the angle, mainly through the adjusting spring 512 and the micrometer head 513.

[0047] See also Figure 4 The power output shaft of the precision positioning motor 502 is equipped with a drive pulley 510, and one end of the positioning screw 505 is equipped with a driven pulley 511. The drive pulley 510 and the driven pulley 511 are connected by a belt.

[0048] Specifically, the precision positioning motor 502 and the positioning lead screw 505 are connected by a drive pulley 510 and a driven pulley 511, which are connected by a belt. This ensures high transmission accuracy while maintaining transmission efficiency.

[0049] See also Figure 5 The visual inspection component 6 may include: a camera mounting base 601, multiple light-emitting elements 602, and multiple cameras 603. The camera mounting base 601 is located on the side of the feeding and conveying component 3 away from the base 2. The multiple light-emitting elements 602 are disposed on the camera mounting base 601. The multiple cameras 603 are disposed on the camera mounting base 601 and correspond one-to-one with the multiple light-emitting elements 602. The camera 603 is disposed on the side of the corresponding light-emitting element 602 away from the feeding and conveying component 3, and both the camera 603 and the light-emitting element 602 are facing the feeding and conveying component 3.

[0050] In this embodiment, the light-emitting element 602 is turned on before the positioning action of the solar cell 1 is completed. After the positioning action is completed, the camera 603 is turned on to take a picture and provide the positioning result. After the unloading component 7 picks up the solar cell 1, it adjusts the orientation and position of the solar cell 1 according to the visual result.

[0051] See also Figure 6 The unloading assembly 7 may include: a module fixing plate 701, an unloading module 702, multiple lifting cylinders 703, and multiple unloading suction cups 704. The module fixing plate 701 extends along a first direction; the unloading module 702 is slidably disposed on the module fixing plate 701 and has a degree of freedom of movement along the first direction; the multiple lifting cylinders 703 are all disposed on the side of the unloading module 702 facing the base 2; the multiple unloading suction cups 704 correspond one-to-one with the multiple lifting cylinders 703, and each unloading suction cup 704 is installed on the piston rod end of the corresponding lifting cylinder 703.

[0052] In this embodiment, the unloading component 7 is used to pick up the angled solar cell 1 and place it at the next workstation. During this process, the orientation and position of the solar cell 1 are adjusted according to the detection results given by the vision detection component 6. If it is a single solar cell 1, it only needs to be placed once; if it is multiple solar cells 1, each solar cell 1 will be placed sequentially according to the vision results, so that all solar cells 1 are placed in the appropriate position. The module fixing plate 701 is used to fix the unloading module 702. When picking up the solar cell 1, the piston rod of the lifting cylinder 703 descends. After the picking is completed, the piston rod of the lifting cylinder 703 rises, the unloading module 702 moves, and the solar cell 1 is placed in the unloading position after it is in place.

[0053] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A precision positioning device for solar cells, used for positioning solar cells (1), characterized in that, include: Base (2); Multiple feeding and conveying components (3) are connected to the base (2), and the feeding and conveying components (3) convey the solar cells (1) located thereon along the first direction; Multiple prepositioning components (4) correspond one-to-one with multiple feeding and conveying components (3). The prepositioning components (4) clamp the solar cell (1) on both sides of the corresponding feeding and conveying component (3) along a second direction for prepositioning. The second direction is the positioning direction of the prepositioning components (4) and intersects with the first direction. Multiple precision positioning components (5) correspond one-to-one with multiple feeding and conveying components (3). Each precision positioning component (5) is disposed on the base (2). The precision positioning component (5) adjusts the angle and / or position of the solar cell (1) on one side of the solar cell (1) along the second direction to perform precision positioning. A visual inspection component (6) is disposed on the side of the feeding and conveying component (3) away from the base (2). The visual inspection component (6) is used to collect the positioning information of the solar cell (1) after positioning. The unloading assembly (7) is disposed on the side of the feeding and conveying assembly (3) away from the base (2) and has a degree of freedom to move in the first direction. The unloading assembly (7) is used to transport the positioned solar cell (1) to the next station. The unloading assembly (7) also adjusts the position of the solar cell (1) in the first direction.

2. The precision positioning device for solar cells according to claim 1, characterized in that, The feed transfer assembly (3) includes: A support plate (301) is connected to the base (2); A motor (302) is fixed on the support plate (301), and the motor (302) has a power output shaft; The drive pulley (303) is mounted on the support plate (301) and connected to the power output shaft of the motor (302) via a belt; The passive pulley (304) is connected to the active pulley (303) by a belt; A transmission flat belt (305) is disposed on the outer periphery of the passive pulley (304) and drives along the first direction, wherein the solar cell (1) is located on the side of the transmission flat belt (305) away from the support plate (301); A feed detection sensor (306) is fixed on the support plate (301), and the feed detection sensor (306) is located at the feed end of the transmission flat belt (305); A light source plate (307) is fixed on the support plate (301) and located on the side of the transmission flat belt (305) away from the solar cell (1). The light source plate (307) is used to provide backlight.

3. The precision positioning device for solar cells according to claim 2, characterized in that, The passive pulley (304) is provided in two sets, and the two sets of passive pulleys (304) are spaced apart in the second direction; The transmission flat belt (305) is provided with two sets and is connected one-to-one with the two sets of passive pulleys (304). The transmission flat belt (305) is a transparent belt.

4. The precision positioning device for solar cells according to claim 1, characterized in that, The pre-positioning component (4) includes: The first prepositioning wheel seat (401) is disposed on the side of the feeding conveying assembly (3) away from the base (2) and located on the side of the feeding conveying assembly (3) in the second direction; A first prepositioning cylinder (402) is connected to the first prepositioning wheel seat (401), and the output end of the first prepositioning cylinder (402) faces the feeding and conveying assembly (3); The second prepositioning wheel seat (403) is disposed on the side of the feeding conveying assembly (3) away from the base (2) and on the other side of the feeding conveying assembly (3) in the second direction; The second prepositioning cylinder (404) is connected to the second prepositioning wheel seat (403), and the output end of the second prepositioning cylinder (404) faces the feeding and conveying assembly (3).

5. The precision positioning device for solar cells according to claim 4, characterized in that, The pre-positioning component (4) further includes: Multiple first prepositioning wheels (405) are all disposed on the side of the first prepositioning wheel seat (401) facing the base (2); Multiple second prepositioning wheels (406) are all disposed on the side of the second prepositioning wheel seat (403) away from the base (2); Both the first prepositioning wheel (405) and the second prepositioning wheel (406) are made of elastic materials.

6. The precision positioning device for solar cells according to claim 1, characterized in that, The precision positioning component (5) includes: A connecting plate (501) is fixed to the base (2); A precision positioning motor (502) is connected to the connecting plate (501), and the precision positioning motor (502) has a power output shaft; Two slide rails (503) are fixed to the connecting plate (501) and extend along the second direction; The slider (504) is slidably fitted onto the two slide rails (503); A positioning lead screw (505) extends along the second direction and is connected to the power output shaft of the precision positioning motor (502). The positioning lead screw (505) passes through the slider (504) and is threadedly connected to the slider (504). The origin sensor (506) is fixed on the connecting plate (501); A push plate mechanism (507) is fixed to the side of the slider (504) away from the base (2), and the push plate mechanism (507) has a degree of freedom to move along the second direction; The connecting plate (501) and the push plate mechanism (507) are located on the same side of the feeding and conveying assembly (3) in the second direction.

7. The precision positioning device for solar cells according to claim 6, characterized in that, The pusher mechanism (507) includes: An adjusting plate (508) is fixed to the side of the slider (504) away from the base (2); A positioning push plate (509) is fixed to the side of the adjusting plate (508) facing the solar cell (1); The adjustment plate (508) is provided with an adjustment spring (512) and a micrometer head (513) on the side away from the solar cell (1), and the adjustment spring (512) and the micrometer head (513) are fixed on the slider (504).

8. The precision positioning device for solar cells according to claim 6, characterized in that, The power output shaft of the precision positioning motor (502) is provided with a drive pulley (510), and one end of the positioning screw (505) is provided with a driven pulley (511). The drive pulley (510) and the driven pulley (511) are connected by a belt.

9. The precision positioning device for solar cells according to claim 1, characterized in that, The visual inspection component (6) includes: A camera mounting base (601) is located on the side of the feed transfer assembly (3) away from the base (2); Multiple light-emitting elements (602) are disposed on the camera mounting base (601); Multiple cameras (603) are mounted on the camera mounting base (601) and correspond one-to-one with multiple light-emitting elements (602); The camera (603) is located on the side of the corresponding light-emitting element (602) away from the feeding and conveying assembly (3), and both the camera (603) and the light-emitting element (602) are facing the feeding and conveying assembly (3).

10. The precision positioning device for solar cells according to claim 1, characterized in that, The feeding assembly (7) includes: Module fixing plate (701) extends along the first direction; The unloading module (702) is slidably disposed on the module fixing plate (701) and has a degree of freedom of movement along the first direction; Multiple lifting cylinders (703) are all located on the side of the unloading module (702) facing the base (2); Multiple feeding suction cups (704) correspond one-to-one with multiple lifting cylinders (703), and each feeding suction cup (704) is installed on the piston rod end of the corresponding lifting cylinder (703).

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