Solder strip clamping mechanism for main-grid-free series welding machine

Abstract

The utility model discloses a welding strip clamping mechanism for a main grid-free series welding machine, which relates to the field of battery series welding equipment and comprises a clamping bottom plate and a clamping component, the clamping component is arranged on the clamping bottom plate and used for clamping a welding strip and a guide plate respectively, the guide plate is arranged on the clamping bottom plate, and the clamping component is used for clamping the welding strip. A plurality of guide grooves for guiding the welding strip are formed in the guide plate, the welding strip sequentially passes through the guide grooves and the clamping assembly, a pressing plate is hinged to the upper portion of the guide plate, a pin plate is arranged on the guide plate, a positioning pin is arranged on the pin plate in a penetrating mode, a through hole is formed in the movable end of the pressing plate, and the through hole is communicated with the pressing plate. According to the welding strip replacement device, the pressing plates and the positioning pins are arranged, the pressing plates are opened firstly before a new welding strip is replaced, then the welding strips are placed into the guide grooves respectively, the pressing plates are closed, the positioning pins are buckled, and the convenience of replacing the new welding strip is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery string welding equipment, and in particular to a welding strip clamping mechanism for a gridless string welding machine. Background Technology

[0002] The metal electrodes on the front and back of the solar cell are used to conduct internal current. The grid lines mainly serve to collect the current of the sub-grids and connect them in series. In order to reduce shading loss and silver loss, the grid lines have become thinner and more numerous in the development process. In this field, such photovoltaic modules are usually called gridless cells.

[0003] A stringing machine is a device that combines welding strips and solar cells to form a battery string. Before the stringing machine strings the battery strings, multiple welding strips pass through multiple mechanisms such as unwinding, clamping, stretching, and cutting. Among them, the welding strip clamping mechanism clamps, positions, and conveys each grid line to maintain the relative position between the welding strip and the solar cell, which facilitates the stringing of the battery strings by the stringing machine.

[0004] The current welding strip clamping mechanism only guides and positions multiple welding strips through the guide groove. However, after each roll of welding strip is used up, a new welding strip needs to be replaced. At this time, the new welding strip needs to be re-threaded into the guide groove of the welding strip clamping mechanism to continue the used part of the previous roll. Since the space of the guide groove is generally small, the operation of the operator is quite complicated each time a new welding strip is replaced.

[0005] Therefore, this application aims to provide a strip clamping mechanism for a gridless string welding machine to solve the technical problems in the prior art. Utility Model Content

[0006] To facilitate the replacement of welding strips during the operation of the welding strip clamping mechanism and to allow for the continuous use of new welding strips, this application provides a welding strip clamping mechanism for a gridless string welding machine.

[0007] The welding strip clamping mechanism for a gridless string welding machine provided in this application adopts the following technical solution:

[0008] A strip clamping mechanism for a gridless string welding machine includes a clamping base plate.

[0009] A clamping assembly, disposed on a clamping base plate, is used to clamp the welding strips respectively.

[0010] A guide plate is disposed on the clamping base plate, and the guide plate has a plurality of guide grooves for guiding the welding strip. The welding strip passes through the guide grooves and the clamping assembly in sequence.

[0011] A pressure plate is hinged above the guide plate, a pin plate is provided on the guide plate, a positioning pin passes through the pin plate, and a through hole is opened at the movable end of the pressure plate. The positioning pin passes through the pin plate and the pressure plate in sequence.

[0012] Optionally, the top of the guide plate is provided with a plurality of first inclined surfaces, which communicate with the guide groove, such that the top opening of the guide groove is larger than the bottom opening of the guide groove.

[0013] Optionally, the guide plate has a plurality of second inclined surfaces on the side away from the clamping assembly, and the second inclined surfaces communicate with the guide groove, so that the opening of the guide groove welding strip entry end is larger than the opening of the guide groove welding strip exit end.

[0014] Optionally, the clamping assembly includes a first chuck, a second chuck, and a driving assembly for driving the first chuck and the second chuck to clamp or move away from each other, the driving assembly being fixed to the clamping base plate.

[0015] Optionally, the clamping assembly further includes a first mounting plate and a second mounting plate, the first clamp being disposed on the first mounting plate and the second clamp being disposed on the second mounting plate, both the first mounting plate and the second mounting plate being slidably connected to the clamping base plate, and the driving assembly being used to drive the first mounting plate and / or the second mounting plate to slide horizontally relative to the clamping base plate.

[0016] Optionally, the drive assembly includes a cylinder, a connector plate, a first connecting rod, a second connecting rod, a first positioning shaft, a second positioning shaft, and a plurality of shoulder screws. The output shaft of the cylinder is fixed to the connector plate. The first positioning shaft and the second positioning shaft are both fixed to the clamping base plate. The first connecting rod is rotatably mounted on the first positioning shaft, and the second connecting rod is rotatably mounted on the second positioning shaft. A parallelogram structure is formed between the first connecting rod, the second connecting rod, the first mounting plate, and the second mounting plate. The connector plate is connected to the first mounting plate. Both ends of the first connecting rod and the second connecting rod are provided with waist-shaped grooves. The first mounting plate and the second mounting plate are provided with through holes corresponding to the waist-shaped grooves. The shoulder screws pass through the waist-shaped grooves and the through holes in sequence.

[0017] Optionally, the clamping base plate is further provided with a limiting component, which is located on the side of the clamping component away from the driving component. The limiting component includes an adjusting block and an adjusting screw, which is mounted on the adjusting block. When the first mounting plate slides to the limit position, the first mounting plate abuts against the adjusting screw.

[0018] Optionally, the pressure plate is provided with a calibration plate, which has numbers, each number corresponding to a guide groove.

[0019] Optionally, the clamping base plate is further provided with a protective cover, which covers the clamping assembly and has through slots for the tops of the first clamp and the second clamp to pass through.

[0020] In summary, this application includes at least the following beneficial effects:

[0021] 1. When replacing the welding strip after it has been used up, remove the positioning pin from the pin plate and then open the pressure plate to easily place each welding strip into the corresponding guide groove, which improves the convenience of replacing the welding strip;

[0022] 2. By setting the first and second inclined surfaces, the ease of installing new welding strips is further improved, so that the guide groove can better guide the welding strip on the one hand, and make it easier for the welding strip to enter the guide groove on the other hand.

[0023] 3. Based on the calibration plate and the numbers on it, staff can quickly identify which solder strip is causing the problem and pinpoint its exact location. Attached Figure Description

[0024] Figure 1 This is a perspective view of a welding strip clamping mechanism for a gridless string welding machine provided in this application;

[0025] Figure 2 This is a schematic diagram of the state of the pressure plate of the welding strip clamping mechanism for a gridless string welding machine provided in this application when it is open;

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is an exploded view of the welding strip clamping mechanism of a gridless welding machine provided in this application, after the protective cover has been concealed.

[0028] Explanation of reference numerals in the attached drawings: 1. Clamping base plate; 2. Guide plate; 3. Pressure plate; 4. Pin plate; 5. Positioning pin; 6. First inclined surface; 7. Guide groove; 8. Second inclined surface; 9. First chuck; 10. Second chuck; 11. First mounting plate; 12. Second mounting plate; 13. Cylinder; 14. Connector plate; 15. First connecting rod; 16. Second connecting rod; 17. First positioning shaft; 18. Second positioning shaft; 19. Shoulder screw; 20. Adjusting block; 21. Adjusting screw; 22. Calibration plate; 23. Protective cover; 24. Handle. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed below.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, 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.

[0033] In utility models, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The welding strip clamping mechanism for a gridless string welding machine includes a clamping base plate 1. The clamping base plate 1 is equipped with clamping assemblies for clamping welding strips. A vertically arranged guide plate 2 is also provided on one side of the clamping base plate 1. The top of the guide plate 2 has several guide grooves 7 for guiding the welding strips. The number of guide grooves 7 is determined according to the number of welding strips. In this application, each guide groove 7 corresponds to one welding strip. Each guide groove 7 corresponds one-to-one with a clamping assembly, allowing each welding strip to pass through the guide groove 7 and the clamping assembly sequentially. The top of the guide plate 2 has several first inclined surfaces 6, which communicate with the guide grooves 7, such that the top opening of the guide groove 7 is larger than the guide groove opening. The bottom of the groove 7 is open, and the guide plate 2 has several second inclined surfaces 8 on the side away from the clamping assembly. The second inclined surfaces 8 communicate with the guide groove 7, so that the opening of the guide groove 7 at the welding strip entry end is larger than the opening of the guide groove 7 at the welding strip exit end. The clamping base plate 1 is also covered with a protective cover 23, which covers the clamping assembly. The protective cover 23 has a through groove for the clamping assembly to pass through. The surface of the welding strip is coated with flux before passing through the clamping assembly. When the welding strip passes through the guide groove 7 and is clamped by the clamping assembly, the flux is prone to dripping. By setting the protective cover 23, the corrosion of the clamping assembly by the flux can be reduced.

[0037] Reference Figure 1 and Figure 2A pressure plate 3 is hinged above the guide plate 2. A pin plate 4 is provided on the guide plate 2. When the pressure plate 3 is closed, the pin plate 4 covers both the guide plate 2 and the pressure plate 3. A positioning pin 5 passes through the pin plate 4. The movable end of the pressure plate 3 has a through hole, allowing the positioning pin 5 to pass through the pin plate 4 and the pressure plate 3 in sequence. The pressure plate 3 is provided with a handle 24. A calibration plate 22 is also provided on the upper surface of the pressure plate 3. The length of the calibration plate 22 covers several guide grooves 7 opened on the guide plate 2. The calibration plate 22 has different numbers, each number corresponding to a guide groove 7. With this arrangement, the positioning pin 5 is passed out of the pressure plate 3, and the handle 24 is pulled to open the pressure plate 3, facilitating the replacement of the welding strip. The new welding strip is simply placed into the guide groove 7 from above, improving the convenience of welding strip replacement. By calibrating each guide groove 7 with different numbers, the position of the welding strip can be quickly located if a problem occurs midway through the welding process.

[0038] Reference Figure 4 The clamping assembly includes a first mounting plate 11, a second mounting plate 12, a plurality of first clamps 9, and a plurality of second clamps 10. The plurality of first clamps 9 are arranged side-by-side on the first mounting plate 11, and the plurality of second clamps 10 are arranged side-by-side on the second mounting plate 12. The first mounting plate 11 and the second mounting plate 12 are parallel to each other, causing the first clamps 9 and second clamps 10 to be staggered. During the movement of the first mounting plate 11 and the second mounting plate 12 away from each other, all the first clamps 9 are moved closer to the second clamps 10, resulting in a clamped state where each welding strip is clamped. During the movement of the first mounting plate 11 and the second mounting plate 12 away from each other in opposite directions, all the first clamps 9 are moved away from the second clamps 10, resulting in an open state where the first clamps 9 and second clamps 10 are open. The first mounting plate 11 and the second mounting plate 12 are both slidably positioned above the clamping base plate 1, and both the first mounting plate 11 and the second mounting plate 12 slide horizontally along their length. Figure 4 As shown, the clamping base plate 1 is provided with a slide rail for sliding the first mounting plate 11 and the second mounting plate 12, thereby limiting the sliding direction of the first mounting plate 11 and the second mounting plate 12. This application will not go into detail. The clamping base plate 1 is also provided with a driving component for driving the first chuck 9 and the second chuck 10 to move closer or further away from each other.

[0039] Reference Figure 4The drive assembly includes a cylinder 13, a connector plate 14, a first connecting rod 15, a second connecting rod 16, a first positioning shaft 17, a second positioning shaft 18, and four shoulder screws 19. The first connecting rod 15, the second connecting rod 16, the first mounting plate 11, and the second mounting plate 12 form a parallelogram structure. The cylinder 13 is positioned above the clamping base plate 1. The first positioning shaft 17 and the second positioning shaft 18 are vertically arranged and both fixed above the clamping base plate 1. The first connecting rod 15 is rotatably mounted on the first positioning shaft 17 and rotates around the first positioning shaft 17. The second connecting rod 16 is rotatably mounted on the second positioning shaft 18 and rotates around the second positioning shaft 18. Both the first connecting rod 15 and the second connecting rod 16 have slots through which the shoulder screws 19 pass. The first mounting plate 11 and the second mounting plate 12 have through holes through which the shoulder screws 19 pass. As shown in the figure, the four shoulder screws 19 are located at the four corners of the parallelogram. The output shaft of cylinder 13 is fixed to connector plate 14, which is connected to first mounting plate 11. With this arrangement, cylinder 13 drives connector plate 14 to move during extension and retraction, and connector plate 14 drives first mounting plate 11 to move. Under the limiting action of first positioning shaft 17 and second positioning shaft 18, first mounting plate 11 and second mounting plate 12 move in opposite directions. At the same time, due to the opening of waist-shaped groove, first mounting plate 11 and second mounting plate 12 have room for movement. A limiting component is also provided on clamping base plate 1. The limiting component is located on the side of clamping component away from driving component. The limiting component includes adjusting block 20 and adjusting screw 21. Adjusting screw 21 is installed on adjusting block 20. When first mounting plate 11 slides to the limit position away from second mounting plate 12, first mounting plate 11 abuts against adjusting screw 21, so that the relative position between first mounting plate 11 and second mounting plate 12 moves within a controllable range.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A strip clamping mechanism for a gridless string welding machine, characterized in that, Including the clamping base plate, A clamping assembly, disposed on a clamping base plate, is used to clamp the welding strips respectively. A guide plate is disposed on the clamping base plate, and the guide plate has a plurality of guide grooves for guiding the welding strip. The welding strip passes through the guide grooves and the clamping assembly in sequence. A pressure plate is hinged above the guide plate, a pin plate is provided on the guide plate, a positioning pin passes through the pin plate, and a through hole is opened at the movable end of the pressure plate. The positioning pin passes through the pin plate and the pressure plate in sequence.

2. The welding strip clamping mechanism for a gridless string welding machine according to claim 1, characterized in that: The top of the guide plate is provided with several first inclined surfaces, which are connected to the guide groove, so that the top opening of the guide groove is larger than the bottom opening of the guide groove.

3. The ribbon clamping mechanism for a gridless string welding machine according to claim 1, characterized in that: The guide plate has several second inclined surfaces on the side away from the clamping assembly. The second inclined surfaces communicate with the guide groove, so that the opening of the guide groove at the welding strip inlet end is larger than the opening of the guide groove at the welding strip outlet end.

4. The strip clamping mechanism for a gridless string welding machine according to claim 1, characterized in that: The clamping assembly includes a first clamp, a second clamp, and a driving assembly for driving the first clamp and the second clamp to clamp or move away from each other, the driving assembly being fixed to the clamping base plate.

5. A strip clamping mechanism for a gridless string welding machine according to claim 4, characterized in that: The clamping assembly further includes a first mounting plate and a second mounting plate. The first clamp is disposed on the first mounting plate, and the second clamp is disposed on the second mounting plate. Both the first mounting plate and the second mounting plate are slidably connected to the clamping base plate. The driving assembly is used to drive the first mounting plate and / or the second mounting plate to slide horizontally relative to the clamping base plate.

6. A strip clamping mechanism for a gridless string welding machine according to claim 4, characterized in that: The drive assembly includes a cylinder, a connector plate, a first connecting rod, a second connecting rod, a first positioning shaft, a second positioning shaft, and several shoulder screws. The output shaft of the cylinder is fixed to the connector plate. The first positioning shaft and the second positioning shaft are both fixed to the clamping base plate. The first connecting rod is rotatably mounted on the first positioning shaft, and the second connecting rod is rotatably mounted on the second positioning shaft. A parallelogram structure is formed between the first connecting rod, the second connecting rod, the first mounting plate, and the second mounting plate. The connector plate is connected to the first mounting plate. Both ends of the first and second connecting rods are provided with waist-shaped grooves. The first mounting plate and the second mounting plate are provided with through holes corresponding to the waist-shaped grooves. The shoulder screws pass through the waist-shaped grooves and the through holes in sequence.

7. A strip clamping mechanism for a gridless string welding machine according to claim 5, characterized in that: The clamping base plate is also provided with a limiting component, which is located on the side of the clamping component away from the driving component. The limiting component includes an adjusting block and an adjusting screw. The adjusting screw is installed on the adjusting block. When the first mounting plate slides to the limit position, the first mounting plate abuts against the adjusting screw.

8. A strip clamping mechanism for a gridless string welding machine according to claim 1, characterized in that: The pressure plate is equipped with a calibration plate, which has numbers on it, and each number corresponds to a guide groove.

9. A strip clamping mechanism for a gridless string welding machine according to claim 4, characterized in that: The clamping base plate is also provided with a protective cover, which covers the clamping assembly. The protective cover has a through groove for the tops of the first clamp and the second clamp to pass through.

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