A typesetting and stacking welding machine

Abstract

The present invention relates to a typesetting and stitch welding integrated machine, comprising a typesetting part, a stepping conveying mechanism and a stitch welding part; the typesetting part is used to typeset battery strings onto a typesetting station, the stepping conveying mechanism is used to receive and position the component units typeset by the typesetting part, and step the component units into the stitch welding station in sequence; the stitch welding part is configured to weld bus bars to the extended welding strips of each component unit stepped into the stitch welding station in sequence, and the extended welding strips are located at both ends of each battery string in the component unit; the stepping conveying mechanism is also used to step the component units with the bus bars welded to the cache station. The typesetting and stitch welding integrated machine of the present application realizes the integration of a traditional typesetting machine and a stitch welding machine, saves equipment and processes, avoids multiple transfers of battery strings, ensures component quality, reduces equipment costs, and realizes the synchronization of typesetting and stitch welding by stepping with component units, which can improve the production efficiency of photovoltaic components.

Description

Technical Field

[0001] The present invention relates to the field of battery assembly production, in particular to a typesetting and stacking welding integrated machine. Background Art

[0002] The traditional method of producing photovoltaic modules is to first weld the battery cells in series through welding ribbons to form battery strings, then use a typesetting machine to layout the battery strings according to the module requirements, and then transport the battery strings laid out by the typesetting machine as a whole to a stitch welding machine. The stitch welding machine is used to weld bus bars on the long welding ribbons of the battery strings, and finally the battery strings are laminated to form battery modules.

[0003] However, this process requires a separate typesetting machine and busbar welding machine. The process is complicated and requires relatively high-precision equipment to ensure the accuracy of the battery strings during transportation and transfer, which results in high equipment costs. During the circulation of the battery strings, the battery strings need to be transported and transferred multiple times, which can easily cause damage to the battery strings and affect the production quality of the components. Summary of the Invention

[0004] In order to overcome the problems of complex procedures, high equipment costs and poor product quality caused by multiple transfers of battery strings in the above-mentioned production process, the present invention provides a typesetting and stitch welding all-in-one machine, which can complete the typesetting and stitch welding of battery strings on the same conveying equipment, thereby improving the efficiency of battery string typesetting and welding bus bars, and reducing damage to battery strings during the conveying process.

[0005] The present invention provides a typesetting and stitching welding machine, which includes a typesetting part, a step-by-step conveying mechanism and a stitching welding part; the step-by-step conveying mechanism is sequentially provided with a typesetting station, a stitching welding station and a cache station along the conveying direction; the typesetting part is arranged in front of the step-by-step conveying mechanism, and the typesetting part is used to pick up the battery string and arrange the battery string on the typesetting station according to a predetermined typesetting method to form a component unit, and the component unit includes at least two battery strings, and multiple component units constitute a battery string group; the step-by-step conveying mechanism is used to receive and position the component unit typesetting by the typesetting part, and step the component unit to the stitching welding station in sequence; the stitching welding part is arranged at the stitching welding station, and is configured to sequentially weld bus bars to the extended welding strips of each component unit stepped to the stitching welding station, and the extended welding strips are located at both ends of each battery string in the component unit; the step-by-step conveying mechanism is also used to step-by-step convey the component unit with the bus bar welded to the cache station.

[0006] By arranging a layout station, a stitch welding station and a cache station on the stepping conveying mechanism, the layout department can directly layout the picked-up battery string to the layout station of the stepping conveying mechanism, and after completing the layout of the first component unit, the stepping conveying mechanism step-by-step conveys the laid-out first component unit to the stitch welding station, and the stitch welding department welds the bus bar to the first component unit. At the same time, the layout department can continue to layout the second component unit to the layout station, and after the bus bar of the first component unit is welded and the layout of the second component unit is completed, the stepping conveying mechanism steps forward again and steps the second component unit to the stitch welding station, and repeats this cycle until multiple component units with welded bus bars form a battery string group on the cache station, that is, the bus bar welding of a photovoltaic component is completed. The typesetting and stitch welding integrated machine of the present application first realizes the integration of the traditional typesetting machine and the stitch welding machine, saves equipment and processes, avoids multiple transfers of battery strings, ensures the quality of components, and reduces equipment costs; secondly, it realizes the simultaneous typesetting and stitch welding, which can greatly improve the production efficiency of photovoltaic components; thirdly, the stepping conveying mechanism only steps one component unit at a time, instead of waiting for all component units in the battery string group to be typed before conveying, which can shorten the overall length of the stepping conveying mechanism and reduce the equipment footprint. It only steps one component unit at a time, and the stitch welding part only needs to perform bus bar welding on the component unit, which can simplify the structure of the stitch welding part and reduce equipment costs.

[0007] Furthermore, the stepping conveying mechanism includes a conveyor belt, a stepping drive mechanism and a conveying support device. The conveyor belt is mounted on the conveying support device, and the stepping drive mechanism is installed on the conveying support device and is connected to the conveyor belt transmission. Adsorption holes are provided on the conveyor belt, and the conveyor belt is used to receive and adsorb the component units of the typesetting part.

[0008] The battery string is received and positioned by the conveyor belt, avoiding the use of glass plates. The battery string is positioned on the conveyor belt by setting adsorption holes. The conveyor belt is supported by the conveying support device. The stepping drive mechanism realizes the stepping conveying of the battery string.

[0009] Furthermore, the conveyor belt at least includes a first conveyor belt and a second conveyor belt spaced apart along a first direction, the first direction being perpendicular to the conveying direction of the conveyor belt; adsorption holes are provided on both the first conveyor belt and the second conveyor belt.

[0010] By spacing the first and second conveyor belts apart, a hollow space is created in the middle of the conveyor belts. This hollow space allows for the supply of long solder strips to the center of the half-cell module and for soldering busbars, improving the compatibility of the stack welding machine.

[0011] Furthermore, the typesetting section includes a typesetting gripper and a visual device; the visual device is arranged above the typesetting gripper, and the visual device is used to detect the battery strings picked up by the typesetting gripper and obtain the position information of the battery strings; the typesetting gripper is used to pick up the battery strings to the visual device, and typeset the qualified battery strings detected by the visual device to the typesetting station according to the obtained position information of the battery strings; the typesetting gripper is also configured to place unqualified battery strings detected by the visual device into a waste box.

[0012] The setting of visual devices can realize the acquisition of battery string position information and quality inspection, achieve accurate layout of qualified battery strings and count and eliminate unqualified battery strings, avoid rework in subsequent processes caused by unqualified battery strings, and improve the layout and production efficiency of photovoltaic modules.

[0013] Furthermore, the typesetting gripper is a robot or a truss arm that can move in three directions of X, Y, and Z, and a rotary drive mechanism and two battery string grabbing assemblies are also installed on the grabbing end of the robot or truss arm, and the two battery string grabbing assemblies are arranged in parallel and jointly installed on the driving end of the rotary drive mechanism; the robot or truss arm is used to drive the two battery string grabbing assemblies to grab the battery strings in sequence; the rotary drive mechanism is used to drive the two battery string grabbing assemblies to rotate after the first battery string grabbing assembly grabs the battery string, and control the second battery string grabbing assembly to grab the battery string, so that the head and tail directions of the battery strings grabbed by the two battery string grabbing assemblies are opposite; the robot or truss arm is also used to typeset the two grabbed battery strings on the typesetting station.

[0014] The setting of a robot or truss arm can drive the battery string grasping component to complete the grasping and layout of the battery strings. By setting two battery string grasping components, two battery strings can be grasped at a time, which improves the grasping and layout efficiency of the battery strings. The rotary drive mechanism can realize that the battery strings grasped by the two battery string grasping components have opposite directions at the head and tail, which meets the direction requirements of the two adjacent battery strings when the components are laid out. After grasping, the two battery strings can be directly placed on the stepping conveying mechanism to complete the layout, which improves the layout efficiency.

[0015] Furthermore, two typesetting parts are provided, namely a first side typesetting part and a second side typesetting part. The first side typesetting part is used to pick up the battery strings and typeset the battery strings according to a predetermined typesetting method on the first typesetting area of ​​the typesetting station. The second side typesetting part is used to pick up the battery strings and typeset the battery strings according to a predetermined typesetting method on the second typesetting area of ​​the typesetting station. The battery strings on the first typesetting area and the second typesetting area form a component unit; wherein the first typesetting area and the second typesetting area are respectively located on both sides of the central axis of the stepping conveying mechanism along the conveying direction.

[0016] By setting the first side layout part and the second side layout part, synchronous layout of the first layout area and the second layout area is achieved, which can effectively improve the layout efficiency of the component unit of the half-chip component.

[0017] Furthermore, the layout and stacking welding machine also includes a first string welding section and a second string welding section. The first string welding section is used to produce battery strings and provide the produced battery strings to the first side layout section; the second string welding section is used to produce battery strings and provide the produced battery strings to the second side layout section.

[0018] The provision of the first string welding portion and the second string welding portion enables dual feeding of the battery string, thereby improving the feeding efficiency of the battery string.

[0019] Furthermore, the typesetting and stitching welding machine also includes a cache section; the first side typesetting section is also used to pick up the battery string from the first string welding section and place the battery string into the cache section, and the second side typesetting section is also used to pick up the battery string from the cache section for typesetting; or, the second side typesetting section is also used to pick up the battery string from the second string welding section and place the battery string into the cache section, and the first side typesetting section is also used to pick up the battery string from the cache section for typesetting.

[0020] The buffer section is set up to achieve buffer feeding of battery strings, thus avoiding the inability of the typesetting section to typeset due to shutdown of a string welding section.

[0021] Furthermore, the stitch welding section includes a busbar preparation section, a busbar transport section, a busbar bearing section and a welding section; the busbar preparation section is configured to prepare the busbar; the busbar transport section is configured to transport the busbar to the busbar bearing section; the busbar bearing section is configured to move the busbar to the position of the extended weld strip; the welding section is used to weld the busbar carried by the busbar bearing section to the extended weld strip.

[0022] The busbar is prepared through the busbar preparation section, the busbar is transported from the preparation section to the busbar bearing section through the busbar transport section, the busbar bearing movement and welding support are achieved through the setting of the busbar bearing section, and the busbar is welded to the long welding strip through the welding section. When the busbar bearing section and the welding section cooperate to weld the busbar, the busbar preparation section and the busbar transport section can simultaneously prepare and transport the busbar, thereby improving efficiency.

[0023] Furthermore, the busbar preparation section includes a head busbar preparation section, an intermediate busbar preparation section and a tail busbar preparation section; the busbar transport section includes a first transport section, a second transport section and a third transport section; the busbar bearing section includes a head busbar bearing section, an intermediate busbar bearing section and a tail busbar bearing section; the welding section includes a head welding section, an intermediate welding section and a tail welding section; the head busbar preparation section is used to prepare the head busbar, the first transport section is used to transport the head busbar to the head busbar bearing section; the head busbar bearing section is used to drive the head busbar to move below the long welding strip at the head of the component unit, and the head welding section is used to weld the head busbar to The middle bus bar preparation section is used to prepare the middle bus bar, and the second transport section is used to transport the middle bus bar to the middle bus bar carrying section; the middle bus bar carrying section is used to drive the middle bus bar to move under the long weld strip in the middle of the component unit, and the middle welding section is used to weld the middle bus bar to the long weld strip in the middle of the component unit; the tail bus bar preparation section is used to prepare the tail bus bar, and the third transport section is used to transport the tail bus bar to the tail bus bar carrying section; the tail bus bar carrying section is used to drive the tail bus bar to move under the long weld strip at the tail of the component unit, and the tail welding section is used to weld the tail bus bar to the long weld strip at the tail of the component unit.

[0024] The bus bar preparation efficiency is improved through the first bus bar preparation section, the middle bus bar preparation section and the tail bus bar preparation section; the bus bar transportation efficiency is improved through the first transport section, the second transport section and the third transport section; the bus bar loading efficiency is improved through the first bus bar bearing section, the middle bus bar bearing section and the tail bus bar bearing section; the bus bar welding efficiency is improved through the first welding section, the middle welding section and the tail welding section; the feeding and welding of the first, middle and tail bus bars can be realized at the same time, thereby improving the stitch welding efficiency of the component units and improving the overall production efficiency of the photovoltaic components.

[0025] Furthermore, the typesetting and stacking welding machine also includes a unloading gripper and a glass plate conveyor line; the glass plate conveyor line is arranged below the step conveying mechanism and has the same conveying direction as the step conveying mechanism, and the glass plate conveyor line is used to convey the glass plate to the unloading station behind the step conveying mechanism; or, the glass plate conveyor line is arranged at the unloading station behind the step conveying mechanism, for carrying and conveying the glass plate; the unloading gripper is arranged at the rear station of the buffer station, and the unloading gripper is used to transport the battery string group with the bus bar welded to the glass plate at the unloading station.

[0026] The unloading gripper is used to grab and unload the battery string group with the bus bars welded. The online supply of glass plates is realized by the setting of the glass plate conveyor line. The unloading gripper can unload the battery string group with the bus bars welded directly onto the glass plate, which is convenient for the production of subsequent processes.

[0027] Furthermore, the typesetting and stacking welding machine also includes a tape applying mechanism, which is arranged at a buffer station and is used to apply tape to adjacent battery strings in a battery string group where bus bars have been welded.

[0028] The setting of the tape sticking mechanism enables the tape sticking of the battery string group whose bus bars have been welded at the cache station, thereby avoiding the misalignment of the battery string group during subsequent movement.

[0029] Based on the above technical features, this application can achieve at least the following beneficial effects:

[0030] By arranging a layout station, a stitch welding station and a cache station on the stepping conveying mechanism, the layout department can directly layout the picked-up battery string to the layout station of the stepping conveying mechanism, and after completing the layout of the first component unit, the stepping conveying mechanism step-by-step conveys the laid-out first component unit to the stitch welding station, and the stitch welding department welds the bus bar to the first component unit. At the same time, the layout department can continue to layout the second component unit to the layout station, and after the bus bar of the first component unit is welded and the layout of the second component unit is completed, the stepping conveying mechanism steps forward again and steps the second component unit to the stitch welding station, and repeats this cycle until multiple component units with welded bus bars form a battery string group on the cache station, that is, the bus bar welding of a photovoltaic component is completed. The typesetting and stitch welding integrated machine of the present application first realizes the integration of the traditional typesetting machine and the stitch welding machine, saves equipment and processes, avoids multiple transfers of battery strings, ensures the quality of components, and reduces equipment costs; secondly, it realizes the simultaneous typesetting and stitch welding, which can greatly improve the production efficiency of photovoltaic components; thirdly, the stepping conveying mechanism only steps one component unit at a time, instead of waiting for all component units in the battery string group to be typed before conveying, which can shorten the overall length of the stepping conveying mechanism and reduce the equipment footprint. It only steps one component unit at a time, and the stitch welding part only needs to perform bus bar welding on the component unit, which can simplify the structure of the stitch welding part and reduce equipment costs.

[0031] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic top view of the structure of a typesetting and stitch-welding machine according to an optional embodiment of the present invention;

[0033] Figure 2 for Figure 1 Schematic diagram of the main structure of the central typesetting and stitch welding machine;

[0034] Figure 3 A modified schematic diagram of a top view of a stepping conveying mechanism according to an optional embodiment of the present invention is shown in FIG. Figure 3 ;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of a stepping conveying mechanism and a stitch welding part in an optional embodiment of the present invention.

[0036] Figures 1 to 4 Including:

[0037] 1. First string welding section; 2. Second string welding section; 3. Discharging conveyor line; 4. First side layout section; 5. Second side layout section; 6. First battery string grabbing assembly; 7. Second battery string grabbing assembly; 8. First battery string; 9. Second battery string; 10. Third battery string; 11. Fourth battery string; 12. Head welding section; 13. Middle welding section; 14. Tail welding section; 15. Stepping conveyor mechanism; 16. Unloading gripper; 17. Glass plate conveyor line; 18. Head bus bar preparation section; 19. Middle bus bar preparation section; 20. Tail bus bar preparation section; 21. Head bus bar bearing section; 22. Middle bus bar bearing section; 23. Tail bus bar bearing section; 24. Cache section; 25. First conveyor belt; 26. Second conveyor belt. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] The present invention is a typesetting and stitch welding all-in-one machine, which can complete the typesetting and stitch welding of battery strings on the same conveying equipment, thereby improving the efficiency of battery string typesetting and welding busbars and reducing damage to the battery strings during the conveying process.

[0040] like Figure 1 and Figure 2As shown, the present invention provides a typesetting and stitch welding machine, which includes a typesetting part, a step-by-step conveying mechanism 15 and a stitch welding part; the step-by-step conveying mechanism 15 is provided with a typesetting station, a stitch welding station and a cache station in sequence along the conveying direction; the typesetting part is arranged in front of the step-by-step conveying mechanism 15, and the typesetting part is used to pick up the battery string and arrange the battery string on the typesetting station according to a predetermined typesetting method to form a component unit, and the component unit includes at least two battery strings, and multiple component units constitute a battery string group; the step-by-step conveying mechanism 15 is used to receive and position the component unit arranged by the typesetting part, and step the component unit to the stitch welding station in sequence; the stitch welding part is arranged at the stitch welding station, and is configured to weld bus bars to the extended welding strips of each component unit stepped to the stitch welding station in sequence, and the extended welding strips are located at both ends of each battery string in the component unit; the step-by-step conveying mechanism 15 is also used to step the component unit with the bus bar welded to the cache station.

[0041] Photovoltaic cell modules are generally divided into full-cell modules and half-cell modules. Full-cell modules are composed of strings of full-cell cells, while half-cell modules are composed of strings of half-cell cells. A half-cell string is made by welding together small pieces of a full-cell cell. A half-cell string is approximately half the length of a full-cell string. Both half-cell and full-cell strings have extended solder strips at the ends for welding to busbars, which combine the current generated by each cell string and output it through a junction box.

[0042] Typically, considering the overall module design length, a full-sheet module consists of only one set of full-sheet cell strings, with the cell strings within one set arranged side by side. Consequently, the extended solder ribbons in a full-sheet module are located only at the beginning and end of the module. However, to achieve a comparable length to a full-sheet module, a half-sheet module requires two sets of half-sheet cell strings along the length of the cell strings. Each set of half-sheet cell strings is arranged side by side, resulting in extended solder ribbons at the beginning, middle, and end of the module.

[0043] The following uses a half-cell battery string as an example to illustrate the present invention. The layout and welding machine in this application uses the layout part to pick up the battery string and layout the battery string to the layout station, for example, Figure 1As shown, the first battery string 8, the second battery string 9, the third battery string 10 and the fourth battery string 11 can be arranged at the typesetting station first, and the first battery string 8, the second battery string 9, the third battery string 10 and the fourth battery string 11 together form a first component unit. At this time, the component unit includes four battery strings, and then the stepping conveying mechanism 15 drives the above-mentioned first component unit to move stepwise toward the stitch welding station. The stepping conveying mechanism 15 steps the width of one component unit (i.e., two battery strings) each time, so that the next typesetting department can continue to layout the second component unit to the typesetting station. When the first component unit is conveyed to the stitch welding station, the stitch welding department leaves long welding strips at the head, middle and tail of the first component unit to weld the bus bar. While the stitch welding department in the stitch welding station welds the bus bar, the typesetting department can continue to layout the second component unit to the typesetting station, which saves typesetting time and improves the production efficiency of photovoltaic modules. After the busbars of the first module unit are welded and the layout of the second module unit is complete, the stepping conveyor mechanism 15 steps forward again by the width of one module unit and steps the second module unit to the stitch welding station for busbar welding. The layout unit simultaneously layouts the third module unit, and the cycle continues. If a half-cell module contains three module units, until three module units with welded busbars are cached at the cache station, the three module units will form a battery string, and the busbar welding of a photovoltaic module is completed.

[0044] The typesetting and stitch welding machine of the present application is also applicable to the typesetting and stitch welding of whole-piece components. For example, for a whole-piece component containing 6 whole-piece battery strings, the component unit can be designed to contain two battery strings during typesetting. After the typesetting part completes the typesetting of the two battery strings, the stepping conveying mechanism 15 steps forward by the width of the two battery strings, and the stitch welding part implements the welding of the head bus bar and the tail bus bar of the component unit that steps to the stitch welding station until 3 component units with welded bus bars are cached at the cache station. Then the 3 component units constitute a battery string group, that is, the bus bar welding of a photovoltaic component is completed.

[0045] The number of battery strings contained in the component unit can be calculated and selected based on the number of battery strings contained in the actual photovoltaic module and the layout design of the photovoltaic module.

[0046] The stepping conveying mechanism 15 is not only configured to receive battery strings, but also configured to position battery strings. The battery strings can be positioned after being placed on the stepping conveying mechanism 15 by the typesetting part. During the conveying process, the individual battery strings in the component unit can also be accurately positioned under the positioning action of the stepping conveying mechanism 15, thereby ensuring the welding quality of the subsequent lap welding busbars.

[0047] The typesetting and stitch welding integrated machine of the present application first realizes the integration of the traditional typesetting machine and the stitch welding machine, saves equipment and processes, avoids multiple transfers of battery strings, ensures the quality of components, and reduces equipment costs; secondly, it realizes the simultaneous typesetting and stitch welding, which can greatly improve the production efficiency of photovoltaic components; thirdly, the stepping conveying mechanism only steps one component unit at a time, instead of waiting for all component units in the battery string group to be typed before conveying, which can shorten the overall length of the stepping conveying mechanism and reduce the equipment footprint. It only steps one component unit at a time, and the stitch welding part only needs to perform bus bar welding on the component unit, which can simplify the structure of the stitch welding part and reduce equipment costs.

[0048] In one implementation, the stepping conveying mechanism 15 of the present application includes a conveyor belt, a stepping drive mechanism and a conveying support device. The conveyor belt is mounted on the conveying support device, and the stepping drive mechanism is installed on the conveying support device and is connected to the conveyor belt transmission; adsorption holes are provided on the conveyor belt, and the conveyor belt is used to receive and adsorb the component units of the typesetting part.

[0049] The battery string is received by the conveyor belt, avoiding the use of glass plates. The battery string is positioned on the component conveyor belt through the setting of adsorption holes, so that the battery string is stationary relative to the conveyor belt during transportation, ensuring the accurate position of the battery string and facilitating the direct welding of the busbars in the subsequent process. The conveyor belt is supported by the conveying support device, and the stepping drive mechanism realizes the stepping transportation of the battery string.

[0050] In one implementation, the conveyor support device includes a conveyor support frame and a conveyor belt support roller assembly. The conveyor belt is mounted on the conveyor support roller assembly. A stepper drive mechanism is mounted on the conveyor support frame. The driving end of the stepper drive mechanism is connected to a support roller in the conveyor support roller assembly. The stepper drive mechanism drives the conveyor belt by rotating one of the support rollers. In one implementation, the stepper drive mechanism is a motor.

[0051] In one implementation, the conveyor belt includes at least a first conveyor belt 25 and a second conveyor belt 26 spaced apart along a first direction, wherein the first direction is perpendicular to the conveying direction of the conveyor belt; adsorption holes are provided on both the first conveyor belt 25 and the second conveyor belt 26.

[0052] When laying out a half-cell module, the first and second cell strings 8 and 9 are placed on the first conveyor belt 25, and the third and fourth cell strings 10 and 11 are placed on the second conveyor belt 26, forming a module unit. The first and second conveyor belts 25 and 26 are spaced apart. The extended welding strips at the leading and trailing ends of the module unit extend outward from the first and second conveyor belts 25 and 26, respectively. The extended welding strips at the middle of the module unit extend to the gap between the first and second conveyor belts 25 and 26. Once the module unit advances to the welding station, busbars are supplied and welded beneath the extended welding strips at the leading, middle, and trailing ends of the module unit.

[0053] When arranging a whole assembly, the first conveyor belt 25 and the second conveyor belt 26 simultaneously receive and position the whole battery string, and the long welding strips at the head and tail of the assembly unit composed of the whole battery string extend out of the first conveyor belt 25 and the second conveyor belt 26 on both sides respectively, so that the bus bars can be supplied and welded under the long welding strips at the head and tail.

[0054] The arrangement of the first conveyor belt 25 and the second conveyor belt 26 can adapt to the layout and stitching of half-cell battery strings and full-cell battery strings, thereby improving the compatibility of the layout and stitching machine.

[0055] In one implementation, the typesetting section includes a typesetting gripper and a visual device; the visual device is arranged above the typesetting gripper, and the visual device is used to detect the battery string picked up by the typesetting gripper and obtain the position information of the battery string; the typesetting gripper is used to pick up the battery string to the visual device, and typeset the qualified battery string detected by the visual device to the typesetting station according to the obtained position information of the battery string; the typesetting gripper is also configured to place the unqualified battery string detected by the visual device into a waste box.

[0056] The visual device can be used to obtain cell string position information and perform quality inspections, enabling accurate layout of qualified cell strings and counting and elimination of unqualified cell strings. This avoids rework in subsequent processes caused by unqualified cell strings and improves the layout and production efficiency of photovoltaic modules. The visual device can be a CCD camera.

[0057] In one implementation, the typesetting gripper is a robot or a truss arm that can move in three directions of X, Y, and Z, and a rotary drive mechanism and two battery string grabbing assemblies are also installed on the grabbing end of the robot or truss arm, and the two battery string grabbing assemblies are arranged in parallel and jointly installed on the driving end of the rotary drive mechanism; the robot or truss arm is used to drive the two battery string grabbing assemblies to grab the battery strings in sequence; the rotary drive mechanism is used to drive the two battery string grabbing assemblies to rotate after the first battery string grabbing assembly 6 grabs the battery string, and control the second battery string grabbing assembly 7 to grab the battery string, so that the head and tail directions of the battery strings grabbed by the two battery string grabbing assemblies are opposite; the robot or truss arm is also used to typeset the two grabbed battery strings on the typesetting station.

[0058] The layout gripper adopts a robot or a truss arm that can move in the X, Y, and Z directions. It can drive the battery string grasping component to flexibly grasp the battery strings and layout the battery strings. It can also grasp the battery strings from different workstations and layout the battery strings on the layout station. For example, when two workstations are used to provide battery strings to the layout gripper, the layout gripper can first grasp the battery strings from the first workstation, and then after the battery strings at the first workstation are grasped, the layout gripper can continue to grasp the strings directly from the second workstation. At the same time, the first workstation can prepare the battery strings and wait for the next grasping of the layout gripper, thereby improving the working range of the layout gripper to meet the needs of different situations. When the battery strings are arranged in parallel, it is necessary to ensure that the polarity of the same end of the two adjacent battery strings arranged together in parallel is opposite to facilitate the series welding of the busbars. Therefore, a rotary drive mechanism is set up so that the first battery string grabbing component 6 on the layout gripper controls the two battery string grabbing components to rotate 180 degrees in the plane after grabbing a battery string, and then allows the second battery string grabbing component 7 to continue to grab the next string, ensuring that the battery strings grabbed by the first battery string grabbing component 6 and the second battery string grabbing component 7 are arranged in parallel and the polarity of the same end of the two battery strings is opposite, thereby meeting the layout requirements of the components.

[0059] In one implementation, the first battery string grasping assembly 6 and the second battery string grasping assembly 7 both include a suction cup assembly for adsorbing the battery strings.

[0060] The battery strings are grabbed and laid out by the layout gripper, and two battery string grabbing components are used to grab two battery strings at a time, which improves the efficiency of grabbing and laying out the battery strings. The rotary drive mechanism ensures that the battery strings grabbed by the two battery string grabbing components have opposite directions at the head and tail (i.e., opposite polarity at the same end), so that the layout gripper can grab the battery strings and lay them out directly, which improves the layout efficiency.

[0061] In one implementation, two layout sections are provided: a first side layout section 4 and a second side layout section 5. The first side layout section 4 is used to pick up battery strings and arrange them in a predetermined layout pattern on a first layout area of ​​a layout station. The second side layout section 5 is used to pick up battery strings and arrange them in a predetermined layout pattern on a second layout area of ​​the layout station. The battery strings in the first and second layout areas form a component unit. The first and second layout areas are respectively located on either side of the central axis of the stepping conveyor mechanism 15 along the conveying direction. For example, if the conveyor belt includes a first conveyor belt 25 and a second conveyor belt 26, the first layout area is located on the first conveyor belt 25, and the second layout area is located on the second conveyor belt 26.

[0062] Through the arrangement of the first side layout section 4 and the second side layout section 5, when performing layout of a half-cell assembly, the first side layout section 4 and the second side layout section 5 can simultaneously perform layout of two groups of half-cell battery strings in the half-cell assembly, thereby improving the layout efficiency of the assembly unit of the half-cell assembly.

[0063] In one implementation, the typesetting and stitching welding machine also includes a first string welding section 1 and a second string welding section 2. The first string welding section 1 is used to produce battery strings and provide the produced battery strings to the first side typesetting section 4; the second string welding section 2 is used to produce battery strings and provide the produced battery strings to the second side typesetting section 5.

[0064] The provision of the first string welding section 1 and the second string welding section 2 enables dual feeding of the battery string, thereby improving the feeding efficiency of the battery string.

[0065] In one implementation, the first string welding section 1 includes two battery string welding production lines, and the second string welding section 2 also includes two battery string welding production lines. The setting of the two battery string welding production lines of the string welding section can achieve uninterrupted material feeding of the first string welding section 1 and the second string welding section 2. For example, when the first side layout section 4 grabs the battery string from one battery string welding production line of the first string welding section 1, the other battery string welding production line can prepare materials.

[0066] In one implementation, the typesetting and stitching welding machine also includes a cache section 24; the first side typesetting section 4 is also used to pick up the battery string from the first string welding section 1 and place the battery string to the cache section 24, and the second side typesetting section 5 is also used to pick up the battery string from the cache section 24 for typesetting; or, the second side typesetting section 5 is also used to pick up the battery string from the second string welding section 2 and place the battery string to the cache section 24, and the first side typesetting section 4 is also used to pick up the battery string from the cache section 24 for typesetting.

[0067] The buffer section 24 is provided to realize the buffer feeding of the battery string, thereby avoiding the typesetting section from being unable to typesetting due to the shutdown of a string welding section. The buffer section 24 can be a buffer material box for holding the battery string.

[0068] In one implementation, Figure 3 and Figure 4 As shown, the stitch welding part includes a busbar preparation part, a busbar conveying part, a busbar bearing part and a welding part; the busbar preparation part is configured to prepare the busbar; the busbar conveying part is configured to convey the busbar to the busbar bearing part; the busbar bearing part is configured to move the busbar to the position of the extended weld strip; the welding part is used to weld the busbar carried by the busbar bearing part to the extended weld strip.

[0069] The busbar preparation section enables busbar preparation, the busbar transport section enables busbar transport from the preparation section to the busbar bearing section, the busbar bearing section provides support for busbar transport and welding, and the welding section enables busbar welding to the extended welding strip. The number of busbar preparation sections, busbar transport sections, busbar bearing sections, and welding sections can be comprehensively considered based on welding efficiency and equipment cost. By providing a busbar preparation section, a busbar transport section, a busbar bearing section, and a welding section, when the busbar bearing section and the welding section cooperate to weld the busbar, the busbar preparation section and the busbar transport section can simultaneously prepare and transport the busbar, thereby improving the busbar stitch welding cycle.

[0070] In one implementation, the busbar preparation section includes a head busbar preparation section 18, an intermediate busbar preparation section 19 and a tail busbar preparation section 20; the busbar transport section includes a first transport section, a second transport section and a third transport section; the busbar bearing section includes a head busbar bearing section 21, an intermediate busbar bearing section 22 and a tail busbar bearing section 23; the welding section includes a head welding section 12, an intermediate welding section 13 and a tail welding section 14; the head busbar preparation section 18 is used to prepare the head busbar, the first transport section is used to transport the head busbar to the head busbar bearing section 21; the head busbar bearing section 21 is used to drive the head busbar to move below the long welding strip at the head of the component unit, and the head welding section 12 is used to move the head busbar to the head of the component unit. The first bus bar is welded to the extended welding strip at the head of the component unit; the middle bus bar preparation section 19 is used to prepare the middle bus bar, and the second transport section is used to transport the middle bus bar to the middle bus bar bearing section; the middle bus bar bearing section 22 is used to drive the middle bus bar to move below the extended welding strip position in the middle of the component unit, and the middle welding section 13 is used to weld the middle bus bar to the extended welding strip in the middle of the component unit; the tail bus bar preparation section 20 is used to prepare the tail bus bar, and the third transport section is used to transport the tail bus bar to the tail bus bar bearing section; the tail bus bar bearing section 23 is used to drive the tail bus bar to move below the extended welding strip position at the tail of the component unit, and the tail welding section 14 is used to weld the tail bus bar to the extended welding strip at the tail of the component unit.

[0071] In one implementation, the head bus bar preparation section 18, the middle bus bar preparation section 19 and the tail bus bar preparation section 20 all include a coil carrying device for carrying the bus bar coil, a cutter for cutting the bus bar, a traction chuck for pulling the bus bar and a support platform for carrying the bus bar; the bus bar coil is placed on the coil carrying device, the bus bar on the coil is pulled out from the coil and passed through the middle of the cutter, the traction chuck is used to pull the bus bar, and the cutter is used to cut the bus bar when the chuck is pulled to a predetermined position, and then the traction chuck pulls the bus bar and places it on the support platform for carrying the bus bar.

[0072] The first, second, and third transport sections each include a busbar suction cup and a transport drive. The transport drive drives the busbar suction cup to absorb the busbar from the busbar support and then transport it to the corresponding busbar support. The transport drive can be a motor module consisting of a lifting motor and a translation motor to drive the busbar suction cup up and down and laterally, or a cylinder module consisting of a lifting cylinder and a translation cylinder to drive the busbar up and down and laterally.

[0073] The first busbar support section 21, the middle busbar support section 22, and the tail busbar support section 23 all include a busbar support plate and a busbar lifting drive device. The busbar support plate is installed at the driving end of the busbar lifting drive device, and the busbar lifting drive device drives the busbar support plate to rise or fall. The lifting drive device first drives the busbar support plate to a low position to receive the busbar carried by the busbar transport section. The lifting drive device then drives the busbar support plate to rise and place the busbar close to the extended welding strip. The busbar lifting drive device can be a cylinder or a motor.

[0074] The head welding section 12, the middle welding section 13 and the tail welding section 14 all include a welding lifting device and a welding head. The welding lifting device adopts a motor or a cylinder, and the welding head can adopt an electromagnetic welding device, a laser welding device or an electric soldering iron welding device.

[0075] The bus bar preparation efficiency is improved through the head bus bar preparation section 18, the middle bus bar preparation section 19 and the tail bus bar preparation section 20; the bus bar transportation efficiency is improved through the first transport section, the second transport section and the third transport section; the bus bar feeding efficiency is improved through the head bus bar bearing section 21, the middle bus bar bearing section 22 and the tail bus bar bearing section 23; the bus bar welding efficiency is improved through the head welding section 12, the middle welding section 13 and the tail welding section 14. When bus bar welding is performed on the component units of the half-cell component, the head bus bar, the middle bus bar and the tail bus bar can be prepared, transported, fed and welded simultaneously, thereby improving the stitch welding efficiency of the component units of the half-cell component. If the busbars are welded to the component units of the whole assembly, the intermediate busbar preparation section 19, the second transport section, the intermediate busbar bearing section 22 and the intermediate welding section 13 can stop working, and only the synchronous preparation, transport, feeding and welding of the head busbar and the tail busbar are carried out to make the stitching section compatible with the whole assembly.

[0076] In one implementation, the typesetting and stacking welding machine also includes a unloading gripper 16 and a glass plate conveyor line 17; the glass plate conveyor line 17 is arranged below the stepping conveying mechanism 15 and has the same conveying direction as the stepping conveying mechanism 15, and the glass plate conveyor line 17 is used to convey the glass plate to the unloading station after the stepping conveying mechanism 15; or, the glass plate conveyor line 17 is arranged at the unloading station after the stepping conveying mechanism 15, for carrying and conveying the glass plate; the unloading gripper 16 is arranged at the post-buffer station, and the unloading gripper 16 is used to transport the battery string group with the bus bar welded to the glass plate at the unloading station.

[0077] In one implementation, the unloading gripper 16 includes an unloading lifting device, an unloading transverse movement device, and a battery string grasping device. The battery string grasping device can be a suction cup group, which is set in a one-to-one correspondence with the battery strings in the battery string group. One suction cup group is used to absorb a string of battery strings. The suction cup group is installed at the driving end of the unloading lifting device. The unloading lifting device drives the suction cup group to descend and grasp the battery string group with the bus bars welded. Then, the unloading transverse movement device drives the suction cup group along the conveying direction of the conveyor belt to transport the battery string group and place it on the glass plate of the unloading station. The unloading lifting device and the unloading transverse movement device can both be a motor or a cylinder.

[0078] The glass plate conveyor line 17 includes a glass plate conveyor belt, a glass plate conveyor bracket and a glass plate conveyor drive device. In order to save space, the glass plate conveyor bracket can be arranged below the conveying part. The glass plate conveyor drive device is a motor. The glass plate conveyor drive device drives the glass plate conveyor belt to convey the glass plate to the unloading station behind the stepping conveying mechanism 15, so as to facilitate the automatic unloading of the battery string group after the bus bar is welded.

[0079] Of course, the glass plate conveying bracket can also be correspondingly set up at the rear of the step conveying mechanism 15. When the glass plate is loaded, it can be directly placed on the unloading station at the rear of the step conveying mechanism 15. After the glass plate receives the battery string group with the bus bar welded, the glass plate conveyor belt directly transports the glass plate to the rear.

[0080] The unloading gripper 16 enables unloading of the battery string group with the bus bars welded thereon, and the glass plate conveyor line 17 enables unloading of the battery string group with the bus bars welded thereon directly onto the glass plate, facilitating the production of subsequent processes.

[0081] In one implementation, the typesetting and stacking welding machine further includes a tape applying mechanism, which is disposed at a buffer station and is used to apply tape to adjacent battery strings in a battery string group where bus bars have been welded.

[0082] The setting of the tape sticking mechanism enables the taping of the battery string group after the bus bars are welded, thereby avoiding the misalignment of the battery string group during the subsequent movement.

[0083] The tape application mechanism includes a tape head and a tape moving device. The tape moving device drives the tape head to apply tape. The tape moving device includes a tape lifting device and a tape translation device. The tape translation device drives the tape lifting device to translate, and the tape lifting device drives the tape head to descend to apply tape or ascend to avoid it, thereby completing the tape application across the entire battery string layout. The tape lifting device and the tape translation device are motors, and the tape lifting device can be a motor or a pneumatic cylinder.

[0084] In one implementation, taking the layout and stack welding of a half-cell module containing 12 battery strings as an example, the layout and stack welding machine of this application operates as follows: After the first and second welding sections 1 and 2 complete the preparation of the battery strings, a stack of battery strings is output by the corresponding discharge conveyor line 3. The first welding section 1 feeds the first-side layout section 4, and the second welding section 2 feeds the second-side layout section 5.

[0085] The layout gripper of the first side layout section 4 grabs the battery strings on the discharge conveyor line 3 of the first string welding section 1 for layout. When grabbing, the first battery string grabbing component 6 on the layout robot first grabs the first battery string 8, and then the rotary drive mechanism drives the two battery string grabbing components to rotate 180 degrees. The second battery string grabbing component 7 descends to grab the second battery string 9. A first camera is set above the first side layout section 4. After grabbing the string, the layout gripper moves to the bottom of the first camera to take a photo, and then sends the position information of the first battery string 8 and the second battery string 9 to the layout gripper. The layout gripper drives the first battery string 8 and the second battery string 9 to move above the stepping conveyor mechanism, and then synchronously layouts the first battery string 8 and the second battery string 9 on the first layout area. The working principle of the second side layout section 5 is similar to that of the first side layout section 4 and will not be repeated here.

[0086] After being arranged on the stepping conveyor mechanism 15, the first battery string 8, the second battery string 9, the third battery string 10, and the fourth battery string 11 are attracted and positioned by the adsorption holes on the stepping conveyor mechanism 15. The first battery string 8, the second battery string 9, the third battery string 10, and the fourth battery string 11 form a component unit.

[0087] The stepper conveyor 15 then steps forward by the width of two cell strings toward the stitch welding station. The layout grippers of the first-side layout section 4 and the second-side layout section 5 continue to arrange the second module unit onto the layout station of the stepper conveyor 15. Simultaneously, the stitch welding section of the stitch welding station welds the busbars to the extended welding strips at the beginning, middle, and end of the first module unit. After the busbars of the first module unit are welded and the layout of the second module unit is completed, the stepper conveyor 15 continues to step forward, stepping the second module unit to the stitch welding station for busbar welding. The layout section simultaneously arranges the third module unit. This cycle continues until three module units with welded busbars are cached at the buffer station. These three module units then constitute a cell string group, completing the busbar welding of a half-sheet module containing 12 cell strings. The unloading gripper 16 then suction-transfers the cell string group consisting of 12 cell strings onto the glass on the glass plate conveyor line 17.

[0088] Based on the above technical features, this application can achieve at least the following beneficial effects:

[0089] The typesetting and stitch welding integrated machine of the present application first realizes the integration of the traditional typesetting machine and the stitch welding machine. Through the cooperation of the stepping conveying mechanism, the typesetting part and the stitch welding part, it saves equipment and processes, avoids multiple transfers of battery strings, ensures the quality of components, and reduces equipment costs; secondly, it realizes the simultaneous typesetting and stitch welding, which can greatly improve the production efficiency of photovoltaic components; thirdly, the stepping conveying mechanism only steps one component unit at a time, instead of waiting for all component units in the battery string group to be typed before conveying, which can shorten the overall length of the stepping conveying mechanism and reduce the equipment footprint. It only steps one component unit at a time, and the stitch welding part only needs to perform bus bar welding on the component unit, which can simplify the structure of the stitch welding part and reduce equipment costs.

[0090] Those skilled in the art will readily appreciate other embodiments of the present invention upon consideration of the specification and practice of the invention herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not invented herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the appended claims.

[0091] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A typesetting and stitch welding machine, characterized in that: The typesetting and stitch welding machine includes a typesetting part, a stepping conveying mechanism and a stitch welding part; The stepping conveying mechanism is provided with a typesetting station, a stitch welding station and a buffering station in sequence along the conveying direction; The layout unit is arranged in the front path of the stepping conveyor mechanism, and is used to pick up the battery strings and layout the battery strings on the layout station according to a predetermined layout method to form an assembly unit, wherein the assembly unit includes at least two battery strings, and multiple assembly units form a battery string group; The stepping conveying mechanism is used to receive and position the component units laid out by the typesetting section, and to sequentially step the component units to the stitch welding station; The stitch welding section is provided at the stitch welding station and is configured to sequentially weld busbars to the extended welding strips of each assembly unit that steps into the stitch welding station, wherein the extended welding strips are located at both ends of each battery string in the assembly unit; The step-by-step conveying mechanism is also used to step-by-step convey the assembly unit after the busbars are welded to the buffer station; The stitch welding section welds the busbars to one component unit, and at the same time, the layout section can layout the next component unit to the layout station.

2. The typesetting and stitching welding machine according to claim 1, characterized in that: The stepping conveying mechanism includes a conveying belt, a stepping driving mechanism and a conveying support device. The conveyor belt is sleeved on the conveyor support device, and the stepping drive mechanism is installed on the conveyor support device and is transmission-connected to the conveyor belt; The conveyor belt is provided with adsorption holes, and the conveyor belt is used to receive and adsorb the component units laid out by the typesetting part.

3. The typesetting and stitching welding machine according to claim 2, characterized in that: The conveyor belt at least includes a first conveyor belt and a second conveyor belt spaced apart along a first direction, wherein the first direction is perpendicular to the conveying direction of the conveyor belt; the adsorption holes are both provided on the first conveyor belt and the second conveyor belt.

4. The typesetting and stitching welding machine according to claim 1, characterized in that: The typesetting unit includes a typesetting gripper and a visual device; The visual device is arranged above the typesetting gripper, and is used to detect the battery string picked up by the typesetting gripper and obtain the position information of the battery string; The layout gripper is used to pick up the battery string to the visual device, and layout the qualified battery string detected by the visual device to the layout station according to the acquired position information of the battery string; The layout gripper is further configured to place unqualified battery strings detected by the visual device into a waste box.

5. The typesetting and stitch welding machine according to claim 4, characterized in that: The typesetting gripper is a robot or a truss arm that can move in the X, Y, and Z directions, and a rotary drive mechanism and two battery string grabbing assemblies are also installed on the grabbing end of the robot or the truss arm. The two battery string grabbing assemblies are arranged in parallel and mounted together on the driving end of the rotary drive mechanism. The robot or the truss arm is used to drive the two battery string grabbing assemblies to grab the battery strings in sequence; The rotary drive mechanism is used to drive the two battery string grabbing assemblies to rotate after the first battery string grabbing assembly grabs the battery string, and control the second battery string grabbing assembly to grab the battery string, so that the battery strings grabbed by the two battery string grabbing assemblies are in opposite directions from head to tail; The robot or the truss arm is further used to layout the two grasped battery strings on the layout station.

6. The typesetting and stitch welding machine according to claim 4 or 5, characterized in that: There are two typesetting parts, namely a first side typesetting part and a second side typesetting part. The first side layout unit is used to pick up the battery strings and layout the battery strings in a predetermined layout manner on the first layout area of ​​the layout station. The second side layout unit is used to pick up the battery strings and layout the battery strings in a predetermined layout manner on the second layout area of ​​the layout station. The battery strings in the first layout area and the second layout area form one assembly unit. The first layout area and the second layout area are respectively located on both sides of the central axis of the stepping conveying mechanism along the conveying direction.

7. The typesetting and stitching welding machine according to claim 6, characterized in that: The layout and stitching machine also includes a first string welding section and a second string welding section. The first string welding section is used to produce battery strings and provide the produced battery strings to the first side layout section; the second string welding section is used to produce battery strings and provide the produced battery strings to the second side layout section.

8. The typesetting, stitching and welding machine according to claim 7, further comprising a buffer unit; The first side layout unit is further used to pick up the battery string from the first string welding unit and place the battery string into the buffer unit, and the second side layout unit is further used to pick up the battery string from the buffer unit for layout; or, The second side layout section is further used to pick up battery strings from the second string welding section and place the battery strings into the buffer section, and the first side layout section is further used to pick up battery strings from the buffer section for layout.

9. The typesetting and stitching welding machine according to claim 1, characterized in that: The stitch welding section includes a busbar preparation section, a busbar conveying section, a busbar carrying section and a welding section; The bus bar preparation section is configured to prepare a bus bar; The bus bar transport portion is configured to transport the bus bar to the bus bar supporting portion; The busbar carrying portion is configured to move the busbar to the position where the extended welding strip is left; The welding portion is used to weld the bus bar carried by the bus bar carrying portion to the extended welding strip.

10. The typesetting and stitch welding machine according to claim 9, characterized in that: The busbar preparation section includes a head busbar preparation section, a middle busbar preparation section and a tail busbar preparation section; The busbar transport section includes a first transport subsection, a second transport subsection and a third transport subsection; The busbar bearing portion includes a head busbar bearing sub-portion, a middle busbar bearing sub-portion and a tail busbar bearing sub-portion; The welding section includes a head welding section, a middle welding section and a tail welding section; The head busbar preparation subsection is used to prepare the head busbar, the first transport subsection is used to transport the head busbar to the head busbar carrying subsection; the head busbar carrying subsection is used to drive the head busbar to move below the extended welding strip of the head of the component unit, and the head welding subsection is used to weld the head busbar to the extended welding strip of the head of the component unit; The intermediate busbar preparation subsection is used to prepare the intermediate busbar, and the second transport subsection is used to transport the intermediate busbar to the intermediate busbar carrying subsection; the intermediate busbar carrying subsection is used to drive the intermediate busbar to move below the extended welding strip in the middle of the component unit, and the intermediate welding subsection is used to weld the intermediate busbar to the extended welding strip in the middle of the component unit; The tail bus bar preparation section is used to prepare the tail bus bar, and the third transport section is used to transport the tail bus bar to the tail bus bar carrying section; the tail bus bar carrying section is used to drive the tail bus bar to move under the long weld strip at the tail of the component unit, and the tail welding section is used to weld the tail bus bar to the long weld strip at the tail of the component unit.

11. The typesetting and stitch welding machine according to claim 1, characterized in that: The typesetting and stitching welding machine also includes a blanking gripper and a glass plate conveyor line; The glass plate conveyor line is arranged below the step-by-step conveyor mechanism and has the same conveying direction as the step-by-step conveyor mechanism, and is used to convey the glass plate to the unloading station of the subsequent step-by-step conveyor mechanism; or, the glass plate conveyor line is arranged at the unloading station of the subsequent step-by-step conveyor mechanism, and is used to carry and convey the glass plate; The blanking gripper is arranged at a subsequent workstation of the buffer workstation, and is used to carry the battery string group with the busbars welded to the glass plate of the blanking workstation.

12. The typesetting and stitch welding machine according to claim 1, characterized in that: The typesetting and stacking welding machine further includes a tape applying mechanism, which is arranged at the buffer station and is used to apply tape to adjacent battery strings in the battery string group after the bus bars are welded.

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