A detection device for a string inspection position of a stringer
Patent Information
- Application Number
- CN202522224270.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-10-21
AI Technical Summary
[0003]目前针对电池串的检测大多是通过EL检测装置进行检测，然而EL检测装置往往是通过拍照方式进行检测，当焊接过程背面焊带偏移时，会导致串间少焊带及电池串传输中干涉致焊带折回，此时单靠EL检测装置无法检测出，此瑕疵电池串大多会流入到下一道工序，即叠焊工序中；叠焊机焊接后再次质检发现焊带缺失及折回，则需要对产品进行整体返修，从而导致返修压力较大，返修数量多，耽误生产效率
1.本实用新型所述的一种串焊机串检位置的检测装置，通过焊带检测组件与EL测试仪，可对电池串进行全方位的检测，解决了现有技术中，无法判断电池串焊带情况，导致返修压力大的情况，提高生产效率。
Smart Images
Figure CN224875376U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery string welding detection technology, specifically a detection device for the string welding machine's inspection position. Background Technology
[0002] Solar cell stringing is a process of connecting solar cells into a string. Currently, there are fully automated solar cell stringing equipment. After the solar cell stringing equipment has finished welding the solar module cells, in order to prevent poor welding from flowing into the next process, the solar cell string needs to be inspected to check for any poor welding.
[0003] Currently, most battery string inspections are conducted using EL (Electro-Laser) inspection devices. However, EL inspection devices often rely on photographic methods. When the back solder ribbon shifts during the welding process, it can lead to missing solder ribbons between strings and interference during battery string transmission, causing the solder ribbons to fold back. In such cases, EL inspection devices alone cannot detect the defects. These defective battery strings will mostly flow into the next process, namely the stacking process. If the stacking machine detects missing or folded solder ribbons during subsequent quality inspections, the entire product needs to be reworked, resulting in significant rework pressure, a large number of rework items, and delays in production efficiency.
[0004] Therefore, a detection device for the serial inspection position of a serial welding machine is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The detection device for the string inspection position of a string welding machine according to this utility model includes a feeding platform. An EL tester is set on one side of the feeding platform. An installation beam is set above the feeding platform. Limiting plates are rotatably connected to both sides of the installation beam. A servo motor is fixedly connected to the side of one of the limiting plates away from the installation beam. The output end of the servo motor passes through the limiting plate and is fixedly connected to the installation beam. An installation plate is fixedly connected to the top of a pair of limiting plates. A lifting cylinder is fixedly connected to the top of the installation plate. Multiple sets of adsorption components for adsorbing battery strings are installed below the installation beam. Welding strip detection components for detecting the welding strips of the battery strings are installed on both sides of the installation beam.
[0007] Preferably, the adsorption assembly includes a positioning plate, the top surface of which is fixedly connected to the bottom surface of the mounting beam by bolts, and adsorption cylinders are connected through both sides of the positioning plate, with rubber suction nozzles fixedly connected to the bottom of the adsorption cylinders.
[0008] Preferably, the welding strip detection assembly includes adjustable plates that are disposed on both sides below the mounting beam and are liftable. A detection plate is installed below the adjustable plate, and a position sensor is fixedly connected below the detection plate. The position sensor is connected to an external control system signal.
[0009] Preferably, the spacing between the plurality of position sensors is the same as the spacing of the solder strips on the battery string to be tested.
[0010] Preferably, a pin is snapped onto the top of the detection plate, and a sliding block is threaded onto the top of the pin. The sliding block is slidably connected inside the adjustment plate, and a limit rod is connected through multiple sliding blocks.
[0011] Preferably, both ends of the limiting rod are provided through the adjusting plate, and both ends of the limiting rod are connected to locking blocks by threads.
[0012] Preferably, a pair of hydraulic cylinders are fixedly connected to the top surface of the adjusting plate, and a movable plate that can move left and right is fixedly connected to the top of the hydraulic cylinders.
[0013] Preferably, a pair of connecting rods are fixedly connected to the top surface of the movable plate and to both sides of the mounting beam, and a push block is fixedly connected to the top of the connecting rod. A push-pull hydraulic cylinder is fixedly connected to the side of the push block near the center of the mounting beam.
[0014] Preferably, a limiting clamp is slidably connected to the side of the push block near the mounting beam, and the limiting clamp is fixedly connected to the mounting beam.
[0015] Preferably, an adjusting rod is fixedly connected to the bottom of the EL tester, and a base is threadedly connected to the bottom of the adjusting rod.
[0016] The advantages of this utility model are: 1. The detection device for the string inspection position of the string welding machine described in this utility model can perform all-round inspection of the battery string through the welding strip detection component and the EL tester, which solves the problem in the prior art that it is impossible to judge the condition of the welding strip of the battery string, resulting in high rework pressure and improving production efficiency.
[0017] 2. The detection device for the position of the string welding machine described in this utility model adjusts the position of the sliding block by pushing the sliding block to slide along the limiting rod. After the position of the sliding block is adjusted, the pin is rotated in the opposite direction to make it contact the limiting rod, thereby locking the sliding block. Finally, the detection plate is inserted to complete the installation. This completes the adjustment of the position of the position sensor and improves the applicability of the device. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the mounting plate structure in this utility model; Figure 3 This is a schematic diagram of the installation beam structure in this utility model; Figure 4 This is a schematic diagram of the adsorption component structure in this utility model; Figure 5 This is a schematic diagram of the solder strip detection component in this utility model; Figure 6 This is a bottom view of the adjusting plate structure in this utility model; Figure 7 This is a schematic diagram of the detection plate structure in this utility model; Figure 8 yes Figure 7 Enlarged view of point A in the middle; Figure 9 The position sensor structure in this utility model is shown in the schematic diagram; In the diagram: 1. Feeding platform; 2. EL tester; 3. Mounting beam; 4. Limiting plate; 5. Servo motor; 6. Mounting plate; 7. Lifting cylinder; 8. Positioning plate; 9. Adsorption cylinder; 10. Rubber suction nozzle; 11. Adjusting plate; 12. Position sensor; 13. Detection plate; 14. Pin; 15. Sliding block; 16. Limiting rod; 17. Locking block; 18. Hydraulic cylinder; 19. Moving plate; 20. Connecting rod; 21. Push block; 22. Limiting clamp; 23. Push-pull hydraulic cylinder; 24. Platform; 25. Adjusting rod. Detailed Implementation
[0020] 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 scope of protection of the present utility model.
[0021] like Figures 1 to 9As shown, the present invention discloses a detection device for the string inspection position of a string welding machine, comprising a feeding platform 1, an EL tester 2 on one side of the feeding platform 1, an installation beam 3 above the feeding platform 1, and limit plates 4 rotatably connected to both sides of the installation beam 3. A servo motor 5 is fixedly connected to the side of one of the limit plates 4 away from the installation beam 3, and the output end of the servo motor 5 passes through the limit plate 4 and is fixedly connected to the installation beam 3. An installation plate 6 is fixedly connected to the top of a pair of limit plates 4, and a lifting cylinder 7 is fixedly connected to the top of the installation plate 6. Multiple sets of adsorption components for adsorbing battery strings are installed below the installation beam 3, and welding strip detection components for detecting the welding strips of the battery strings are installed on both sides of the installation beam 3. During operation, after the photovoltaic cell string is welded, it is placed in the loading platform 1. Specifically, a robotic arm can be used to place it in. After the cell string is placed, the lifting cylinder 7 is activated, causing it to move downwards, which in turn lowers the mounting plate 6. The lowering of the mounting plate 6 then lowers the limiting plate 4 and the mounting beam 3 until the adsorption component on the mounting beam 3 contacts the cell string and then adsorbs it. During the adsorption process, the solder strip detection component can detect the solder strip of the cell string. Then, the lifting cylinder 7 resets and moves the cell string upwards. At this time, the cell string is not directly facing the EL tester 2, so the position of the cell string needs to be adjusted. Then, the servo motor 5 is activated to rotate the mounting beam 3 by 90 degrees, which in turn rotates the cell string by 90 degrees, so that the cell string is directly facing the EL tester 2. The EL tester 2 can then take pictures and detect the cell string. In this way, the cell string can be inspected from all angles by the solder strip detection component and the EL tester 2, which solves the problem in the existing technology that cannot determine the condition of the solder strip of the cell string, resulting in high rework pressure and improving production efficiency.
[0022] The adsorption assembly includes a positioning plate 8, the top surface of which is fixedly connected to the bottom surface of the mounting beam 3 by bolts, and adsorption cylinders 9 are connected through both sides of the positioning plate 8, with a rubber suction nozzle 10 fixedly connected to the bottom end of the adsorption cylinder 9. During operation, specifically when adsorbing the battery string, the rubber nozzle 10 first comes into contact with the battery string, and then the adsorption cylinder 9 is activated to draw air, thereby creating a negative pressure inside the rubber nozzle 10. Under the action of the negative pressure, the rubber nozzle 10 will firmly adsorb the battery string, thus achieving the effect of adsorbing the battery string.
[0023] The welding strip detection assembly includes adjustable plates 11 that are set on both sides below the mounting beam 3 and can be raised and lowered. A detection plate 13 is installed below the adjustable plate 11, and a position sensor 12 is fixedly connected below the detection plate 13. The position sensor 12 is connected to the signal of an external control system. The spacing between the multiple position sensors 12 is the same as the spacing of the solder strips on the battery string to be tested; During operation, specifically, after the battery string is attracted by the rubber suction nozzle 10, the adjusting plate 11 moves downward, causing the detection plate 13 to move. The movement of the detection plate 13, in turn, causes the position sensor 12 to move until it contacts the battery string. Since the spacing between the position sensors 12 is the same as the spacing of the solder strips on the battery string to be tested, the position sensor 12 will contact the solder strips at this time. Through its own function, the position sensor 12 outputs the status of the solder strips to the system. Specifically: when the position sensor 12 detects the presence of the solder strips, it sends an "OK" result to the system; when the position sensor 12 does not detect the solder strips, it sends an "NG" result to the system. If all the position sensors 12 output "OK", then the system receives the results from all the position sensors 12. After outputting the results, the battery string is released normally. If multiple position sensors 12 output "NG", the system will automatically alarm and remind employees to remove the battery string for rework. This design not only determines the presence or absence of solder strips in each part of the battery string, but also records the position of each "NG" result from the position sensor 12. When a position sensor 12 at a certain position frequently outputs "NG", the system will promptly alert employees to a potential malfunction in the soldering equipment. It is important to note that when installing the detection board 13, the position sensors 12 must be located at the beginning and end of the battery string. By detecting the solder strip status at the beginning and end of the battery string, the overall solder strip distribution of the battery string can be determined. See the attached diagram for details. Figure 9 As shown.
[0024] In one embodiment, a pin 14 is snapped onto the top of the detection plate 13, and a sliding block 15 is threaded onto the top of the pin 14. The sliding block 15 is slidably connected inside the adjustment plate 11, and a limit rod 16 is connected through a common connection between multiple sliding blocks 15. During operation, since the spacing between the position sensors 12 must match the spacing of the solder strips on the battery string to be tested, the position of the position sensors 12 needs to be adjusted according to the size and model of the battery string. The specific adjustment method is as follows: First, pull the pin 14 out from inside the detection plate 13, that is, pull the detection plate 13 away from the adjustment plate 11. Then rotate the pin 14. Since the pin 14 and the sliding block 15 are connected by threads, the pin 14 needs to be rotated to move it away from the sliding block 15, so that the pin 14 and the limit rod 16 are separated. When the pin 14 separates from the limit rod 16, the sliding block 15 can be pushed to slide along the limit rod 16, thereby adjusting the position of the sliding block 15. After the position of the sliding block 15 is adjusted, the pin 14 is rotated in the opposite direction to make it contact the limit rod 16, thereby locking the sliding block 15. Finally, the detection plate 13 is inserted to complete the installation. This completes the adjustment of the position sensor 12, improving the applicability of the device. It should be noted that the central axes of the position sensor 12, detection plate 13, pin 14 and sliding block 15 are all on the same straight line.
[0025] Both ends of the limiting rod 16 are provided to pass through the adjusting plate 11, and both ends of the limiting rod 16 are connected to locking blocks 17 by threads. During operation, the number of solder strips on battery strings of different sizes and models varies. Therefore, it is necessary to add or reduce the number of position sensors 12. At this time, by turning the locking block 17, it is moved away from the limit rod 16 until the locking block 17 separates from the limit rod 16. Then the limit rod 16 can be pulled out from the inside of the adjusting plate 11. During this process, the sliding block 15 can be de-locked by turning the pin 14, and the sliding block 15 can be pushed to separate from the limit rod 16. Similarly, a sliding block 15 and subsequent related components can be added to the limit rod 16. In this way, the number of position sensors 12 can be adjusted to adapt to various battery string models, further improving the applicability of this device.
[0026] In one embodiment, a pair of hydraulic cylinders 18 are fixedly connected to the top surface of the adjusting plate 11, and a movable plate 19 that can move left and right is fixedly connected to the top of the hydraulic cylinder 18. During operation, when the adjustment plate 11 needs to be raised or lowered, simply start the hydraulic cylinder 18. The operation of the hydraulic cylinder 18 will push the adjustment plate 11 downward, thereby completing the contact operation between the position sensor 12 and the welding strip.
[0027] A pair of connecting rods 20 are fixedly connected to the top surface of the movable plate 19 and to both sides of the mounting beam 3. A push block 21 is fixedly connected to the top of the connecting rod 20. A push-pull hydraulic cylinder 23 is fixedly connected to the side of the push block 21 near the center of the mounting beam 3. During operation, it is understandable that battery strings of different models and sizes have different lengths, so the horizontal position of the detection plate 13 also needs to be adjusted accordingly. At this time, the push-pull hydraulic cylinder 23 can be activated to drive the push block 21 to slide. The sliding of the push block 21 drives the connecting rod 20 to move. The movement of the connecting rod 20 drives the moving plate 19 to move. The moving plate 19 will drive the detection plate 13 on it to move, thereby completing the adjustment of the horizontal position of the detection plate 13.
[0028] In one embodiment, the push block 21 is slidably connected to a limiting clamp 22 on the side near the mounting beam 3, and the limiting clamp 22 is fixedly connected to the mounting beam 3. During operation, it should be noted that the limiting clamp 22 has a sliding groove inside, and the push block 21 is fixedly connected to a slider that matches the shape of the sliding groove on the side near the limiting clamp 22. The slider is slidably connected in the sliding groove. In this way, the limiting clamp 22 can limit the push block 21, thereby improving the stability of the detection plate 13 during translational movement.
[0029] In one embodiment, an adjusting rod 25 is fixedly connected to the bottom of the EL tester 2, and a base 24 is threadedly connected to the bottom of the adjusting rod 25; During operation, because the battery strings of different models and sizes are not the same, the shooting height of the EL tester 2 also needs to be adjusted. Through the threaded connection between the base 24 and the adjusting rod 25, in actual use, simply rotating the adjusting rod 25 can drive the EL tester 2 to raise and lower, improving the applicability of this device; it can be understood that, combined with the attached... Figure 1 As shown, the platform 24 described in this application has a sleeve welded to its top end to fit the adjusting rod 25, and a column for easy gripping is fixed to the adjusting rod 25.
[0030] It should be noted that the EL tester 2, servo motor 5, lifting cylinder 7, adsorption cylinder 9, position sensor 12, and push-pull hydraulic cylinder 23 described in this application are all existing technology components, and their installation, connection and specific principles are also existing technology. This application will not elaborate on these in detail. It is understandable that the testing device of this application does not improve the existing EL tester 2, but adopts the conventional EL tester 2, and provides a concept for simultaneous testing of battery string solder strips while inspecting the appearance of the battery string, so as to better cooperate with the EL tester 2 to complete the test.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A detection device for the serial inspection position of a serial welding machine, characterized in that: The system includes a loading platform (1), an EL tester (2) is installed on one side of the loading platform (1), an installation beam (3) is installed above the loading platform (1), and limit plates (4) are rotatably connected to both sides of the installation beam (3). A servo motor (5) is fixedly connected to the side of one of the limit plates (4) away from the installation beam (3). The output end of the servo motor (5) passes through the limit plate (4) and is fixedly connected to the installation beam (3). A mounting plate (6) is fixedly connected to the top of a pair of limit plates (4). A lifting cylinder (7) is fixedly connected to the top of the mounting plate (6). Multiple sets of adsorption components for adsorbing battery strings are installed below the installation beam (3). Welding strip detection components for detecting the welding strips of the battery strings are installed on both sides of the installation beam (3).
2. The detection device for the serial inspection position of a string welding machine according to claim 1, characterized in that: The adsorption assembly includes a positioning plate (8), the top surface of which is fixedly connected to the bottom surface of the mounting beam (3) by bolts, and adsorption cylinders (9) are connected through both sides of the positioning plate (8), and a rubber suction nozzle (10) is fixedly connected to the bottom end of the adsorption cylinder (9).
3. The detection device for the serial inspection position of a string welding machine according to claim 2, characterized in that: The welding strip detection assembly includes adjustable plates (11) that are set on both sides below the mounting beam (3) and can be raised and lowered. A detection plate (13) is installed below the adjustable plate (11), and a position sensor (12) is fixedly connected below the detection plate (13). The position sensor (12) is connected to the signal of an external control system.
4. The detection device for the serial inspection position of a serial welding machine according to claim 3, characterized in that: The spacing between the multiple position sensors (12) is the same as the spacing of the solder strips on the battery string to be tested.
5. The detection device for the serial inspection position of a serial welding machine according to claim 4, characterized in that: The top of the detection plate (13) is fitted with a pin (14), and the top of the pin (14) is connected to a sliding block (15) by a thread. The sliding block (15) is slidably connected inside the adjustment plate (11), and a limit rod (16) is connected through the multiple sliding blocks (15).
6. The detection device for the serial inspection position of a serial welding machine according to claim 5, characterized in that: The limiting rod (16) is provided with both ends of the adjusting plate (11), and both ends of the limiting rod (16) are connected to locking blocks (17) by threads.
7. The detection device for the serial inspection position of a string welding machine according to claim 6, characterized in that: A pair of hydraulic cylinders (18) are fixedly connected to the top surface of the adjusting plate (11), and a movable plate (19) that can move left and right is fixedly connected to the top of the hydraulic cylinder (18).
8. The detection device for the serial inspection position of a string welding machine according to claim 7, characterized in that: A pair of connecting rods (20) are fixedly connected to the top surface of the movable plate (19) and to both sides of the mounting beam (3). A push block (21) is fixedly connected to the top of the connecting rod (20). A push-pull hydraulic cylinder (23) is fixedly connected to the side of the push block (21) near the center of the mounting beam (3).
9. The detection device for the serial inspection position of a string welding machine according to claim 8, characterized in that: The push block (21) is slidably connected to a limiting clamp (22) on the side near the mounting beam (3), and the limiting clamp (22) is fixedly connected to the mounting beam (3).
10. The detection device for the serial inspection position of a serial welding machine according to claim 9, characterized in that: The bottom of the EL tester (2) is fixedly connected to an adjustment rod (25), and the bottom of the adjustment rod (25) is connected to a base (24) by a thread.