Sucker device for transferring solar cells and robot with same

Abstract

The utility model relates to the technical field of solar energy, in particular to a suction cup device for transferring a solar cell and a robot with the suction cup device. Comprising a fixing base and at least one suction cup assembly, the suction cup assembly is installed on the side surface of the fixing base, the suction cup assembly comprises an installation plate, suction cup structures, an elastic piece and a double-ventilation hose, at least two suction cup containing openings are formed in the surface of the installation plate in a staggered mode, the suction cup structures are installed in the suction cup containing openings, and one end of the elastic piece is connected with the suction cup structures; one end of the double-ventilation hose is connected with the suction cup structure, the other end of the double-ventilation hose is connected with an external vacuum pump, the suction cup structure comprises a suction cup body, a first suction nozzle and a second suction nozzle, and the first suction nozzle and the second suction nozzle are arranged on the end faces of the two sides of the suction cup body. The suction process is more stable, subfissure of the battery pieces during suction is avoided, the battery pieces on each side share the suction cup structure during suction, and the structure of the suction cup device is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of solar energy, in particular to a sucker device for transferring solar cell sheets and a robot with the device. Background Art

[0002] Solar cells, also known as photovoltaic cells, are a type of photoelectric conversion device that can use the photovoltaic effect of semiconductors to convert solar energy into electrical energy. In the production, research and development and application of silicon solar cells, multiple process steps require the transportation of solar cells to achieve the connection between the various processes in the cell production process. In order to avoid contaminating solar cells, automated equipment for transferring solar cells has gradually been developed and put into use.

[0003] In the related art, in the equipment that uses robots to automatically fix and transfer solar cells, the loading robot installs a cell gripper on the end of a multi-joint mechanical arm to achieve the gripping of the cell. The existing loading robot's cell gripper adopts double-sided gripping of the cell, and its gripper mainly grabs the cell through a suction cup. Each side is separately configured with a suction nozzle, and each suction nozzle is separately connected to an air pipe, which leads to a complex structure of the suction cup device, and the suction nozzle is completely in an elastic suspended state. When adsorbing the cell, especially for the cell on the bottom side relative to the cell on the top, the cell is affected by the gravity of the cell during the adsorption process, and the shaking amplitude is large during the adsorption process, which can easily cause hidden cracks in the solar cell. Based on this, it is urgent to improve the suction cup device to make the structure of the suction cup device simpler, and the batch adsorption process of solar cells is more stable to avoid damage to the solar cell. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a hanging fixture for electroplating of solar cell sheets and an electroplating device having the fixture.

[0005] In a first aspect, a suction cup device for transferring a solar cell according to an embodiment of the present application includes:

[0006] Fixed base,

[0007] At least one suction cup assembly is mounted on the side surface of the fixed base, and the suction cup assembly includes a mounting plate, a suction cup structure, an elastic member and a dual ventilation hose,

[0008] At least two suction cup accommodating openings are staggered on the surface of the mounting plate, the suction cup structure is installed in the suction cup accommodating opening, one end of the elastic member is connected to the suction cup structure, and the other end is diagonally connected to the side wall of the suction cup accommodating opening, one end of the double ventilation hose is connected to the suction cup structure, and the other end is connected to an external vacuum pump.

[0009] The suction cup structure includes a suction cup body, and a first suction nozzle and a second suction nozzle arranged on both side end surfaces of the suction cup body. The first suction nozzle and the second suction nozzle are respectively used for adsorption and transfer of battery cells.

[0010] According to some embodiments of the present application, the mounting plate is provided with a downward stepped groove along the edge of each suction cup receiving opening, and two ends of the top surface of the suction cup body respectively contact with the inner surface of the stepped groove.

[0011] According to some embodiments of the present application, second connecting parts are respectively provided at the four corners of the suction cup body, a first connecting part is opened on the surface of the mounting plate diagonally opposite to the suction cup body, and the two ends of the elastic member are respectively connected to the first connecting part and the second connecting part.

[0012] According to some embodiments of the present application, a first sealed chamber is provided in the first suction nozzle, a second sealed chamber is provided in the second suction nozzle, the first sealed chamber and the second sealed chamber are isolated from each other, and the first sealed chamber and the second sealed chamber are respectively sealed and connected to the dual ventilation hose.

[0013] According to some embodiments of the present application, a plurality of first adsorption holes are provided on the surface of the first suction nozzle, and the first adsorption holes are connected to the first sealed chamber. A second adsorption hole is provided on the surface of the second suction nozzle, and the second adsorption hole is connected to the second sealed chamber.

[0014] According to some embodiments of the present application, a plurality of limiting protrusions are arranged on the surface of the fixed base at intervals along the height direction, and a mounting groove is arranged between every two of the limiting protrusions.

[0015] According to some embodiments of the present application, a docking port is provided on the inner surface of each mounting groove, a first gas source pipeline is provided in the fixed base along the vertical direction, and the docking port is sealed and connected to the first gas source pipeline.

[0016] According to some embodiments of the present application, a connecting block is fixedly provided at one end of the mounting plate, a second air source pipeline is provided in the connecting block, and one end of each of the dual-ventilation hoses away from the suction cup assembly is sealed and connected to the second air source pipeline.

[0017] According to some embodiments of the present application, the connection block is fixedly installed in the installation groove, and the second gas source pipeline is sealed and connected to the first gas source pipeline through a docking port.

[0018] In a second aspect, an embodiment of the present application further provides a robot, comprising a robot arm body and a suction cup device for transferring solar cell sheets as described in any one of the embodiments of the first aspect above, wherein the suction cup device is detachably mounted on the robot arm body.

[0019] Compared with the prior art, the technical solution of this application includes at least the following beneficial effects:

[0020] The suction cup assembly is installed on the side surface of the fixed base at equal intervals, and the first air source pipeline arranged in the fixed base is sealed and connected with the second air source pipeline arranged in the suction cup assembly. A plurality of suction cup accommodating openings are provided at intervals on the surface of the mounting plate of the suction cup assembly, and a downward stepped groove is provided around the edge of the suction cup accommodating opening. A suction cup structure is installed in each suction cup accommodating opening, and the four corners of the suction cup structure are connected to the edge of the suction cup accommodating opening through elastic members. In a normal state, the upper surface of the suction cup structure is in contact with the inner surface of the stepped groove. The first suction nozzle and the second suction nozzle are respectively provided on the two side surfaces of the suction cup structure. The chambers arranged in the first suction nozzle and the second suction nozzle are not connected to each other, and are separately connected to the vacuum pump through double ventilation hoses. When adsorbing the battery cell, the upper and lower surfaces of a suction cup structure can adsorb the battery cell at the same time, and the stepped groove provided on the edge of the suction cup accommodating opening can reduce the shaking amplitude of the suction cup structure during the adsorption process, so that the adsorption process is more stable, avoiding hidden cracks in the battery cell during adsorption, and the battery cells on each side share the suction cup structure during adsorption, thereby simplifying the structure of the suction cup device.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a schematic diagram of the structure of the robot after the suction cup device is installed according to an embodiment of the present application;

[0024] Figure 2 is a schematic structural diagram of a suction cup device according to an embodiment of the present application;

[0025] Figure 3 is a structural schematic diagram of a fixed base according to an embodiment of the present application;

[0026] Figure 4 is a first side view of a fixed base according to an embodiment of the present application;

[0027] Figure 5 is a second side view of a fixed base according to an embodiment of the present application;

[0028] Figure 6is a schematic structural diagram of a suction cup assembly according to an embodiment of the present application;

[0029] Figure 7 is a partial cross-sectional view of a connection block according to an embodiment of the present application;

[0030] Figure 8 is a partial enlarged structural schematic diagram of a mounting plate according to an embodiment of the present application;

[0031] Fig. 9 is a structural schematic diagram of a suction cup structure according to an embodiment of the present application;

[0032] Fig.10 It is a side view of the suction cup structure according to an embodiment of the present application.

[0033] Reference numerals:

[0034] 10. Slide rail;

[0035] 20. Suction cup device;

[0036] 100. robot; 110. end mounting portion;

[0037] 200, fixed base; 210, limiting protrusion; 211, mounting groove; 220, connecting structure; 212, first screw hole; 213, first gas source pipeline; 214, docking port;

[0038] 300, suction cup assembly; 310, connection block; 311, second screw hole; 312, second air source pipeline;

[0039] 320, mounting plate; 321, suction cup receiving opening; 3211, stepped groove; 322, first connecting portion;

[0040] 330, suction cup structure; 331, suction cup body; 332, first suction nozzle; 3321, first suction hole; 3322, first sealed chamber; 333, second suction nozzle; 3331, second suction hole, 3332, second sealed chamber; 334, second connecting part;

[0041] 340, elastic member; 350, double ventilation hose;

[0042] 400. Solar cells. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific implementations and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0046] See also Figure 1 to Figure 2 , Figure 1 A schematic diagram of the structure of the robot 100 after the suction cup device 20 is installed in the embodiment of the present application is shown; Figure 2 The structure diagram of the suction cup device 20 of the embodiment of the present application is shown; the robot 100 is installed on the slide rail 10, and can move along the length direction of the slide rail 10. The front end of the robot arm of the robot 100 is provided with a terminal mounting portion 110, and the front end of the terminal mounting portion 110 is provided with a suction cup device 20. The suction cup device 20 includes a fixed base 200 and a suction cup assembly 300. The fixed base 200 is connected to the front end of the terminal mounting portion 110, and a plurality of suction cup assemblies 300 are arranged at intervals along the length direction on the side end surface of the fixed base 200;

[0047] It should be noted that a micro vacuum pump is provided in the end mounting portion 110, and the model, specification and installation of the micro vacuum pump can be selected according to actual needs and are not limited here. The micro vacuum pump is connected to the suction nozzle of the suction cup assembly 300 through an air path to provide negative pressure to achieve the adsorption function. Before the transfer of the solar cell 400, the first process is to manually place the solar cell 400 neatly on the material frame, and the subsequent transfer of the solar cell 400 is automatically transferred by the robot after the suction cup device is installed. The transfer process can be automatically adsorbed, fixed and released by controlling the air pressure;

[0048] It should also be noted that the configuration of the robot 100 and the slide rail 10 is only one application scenario, and is only an example to more conveniently illustrate the working principle of the suction cup device 20 of this embodiment. The robot 100 may be a six-axis robot, a four-axis robot, or a robot in other specific scenarios, which is not limited here.

[0049] For example, during the adsorption process, the robot 100 inserts the suction cup assembly 300 of the suction cup device 20 into the placed stacked solar cell 400, and by controlling the vacuum pump, the adsorption holes on both sides of the suction nozzle arranged on the surface of the suction cup assembly 300 form a negative pressure, thereby achieving the adsorption and fixation of the solar cell 400, and further completing the transfer of the solar cell 400.

[0050] See also Figures 3 to 5 , the specific structure and implementation principle of the fixed base 200 will be described in detail below. A plurality of limiting protrusions 210 are arranged at intervals along the height direction on the surface of the fixed base 200, and a mounting groove 211 is arranged between every two of the limiting protrusions 210. It should be noted that the width of the mounting groove 211 is equal to or slightly larger than the thickness of the connection end of the suction cup assembly 300. The number of limiting protrusions 210 and the mounting groove 211 can be set according to actual requirements and is not limited here. A connecting structure 220 is arranged on the other end surface of the fixed base 200, and the connecting structure 220 is used to be installed and fixed with the robot 100;

[0051] Continue reading Figures 4 to 5 A docking port 214 is provided in the middle position of the inner surface of each mounting groove 211, and a through hole is opened in the thickness direction of the fixed base 200. A first gas source pipeline 213 is provided in the fixed base 200 along the vertical direction. The docking port 214 is sealed and connected to the first gas source pipeline 213 through the through hole, and the other end of the first gas source pipeline 213 is sealed and connected to an external vacuum pump, thereby realizing effective transmission of negative pressure.

[0052] Furthermore, first screw holes 212 are provided on both sides of the docking port 214 provided in each mounting groove 211. The first screw holes 212 are provided for mounting and fixing the suction cup assembly 300 and realizing a sealed connection at the docking port 214.

[0053] See also Figures 6 to 8 At least one suction cup assembly 300 is installed on the side surface of the fixed base 200. The suction cup assembly 300 includes a mounting plate 320, a suction cup structure 330, an elastic member 340 and a dual-ventilation hose 350. A connecting block 310 is fixedly provided at one end of the mounting plate 320. A second air source pipeline 312 is provided in the connecting block 310. The second air source pipeline 312 is in a T shape. One end of each dual-ventilation hose 350 away from the suction cup assembly 300 is sealed and connected to the second air source pipeline 312. The other end of the second air source pipeline 312 is sealed and connected to the docking port 214. Second screw holes 311 are provided on the end faces of the connecting block 310 on both sides of the second air source pipeline 312. During installation, the second screw holes 311 are aligned with the first screw holes 212, and then are connected and fixed by bolts.

[0054] It should be noted that the connection block 310 and the mounting plate 320 are integrally formed, and four suction cup accommodating openings 321 are staggered on the surface of the mounting plate 320. It should be noted that the suction cup accommodating openings 321 can also be staggered to be two, three or five, and there is no limitation here. A guide hole or a guide groove is provided along a straight line from each suction cup accommodating opening 321 to the connection block 310, which is used to accommodate the dual ventilation hose 350.

[0055] Specifically, a suction cup structure 330 is installed in the suction cup receiving opening 321, one end of the elastic member 340 is connected to the suction cup structure 330, and the other end is diagonally connected to the side wall of the suction cup receiving opening 321, one end of the double ventilation hose 350 is connected to the suction cup structure 330, and the other end is connected to an external vacuum pump, and the mounting plate 320 is provided with a downward stepped groove 3211 along the edge of each suction cup receiving opening 321, and the two ends of the top surface of the suction cup body 331 are respectively in contact with the inner surface of the stepped groove 3211;

[0056] It should be noted that the elastic member 340 can be made of a spring or an elastic rope, the four corners of the suction cup body 331 are respectively provided with second connection parts 334, the surface of the mounting plate 320 diagonally opposite to the suction cup body 331 is provided with a first connection part 322, and the two ends of the elastic member 340 are respectively connected to the first connection part 322 and the second connection part 334. The setting of the elastic member 340 allows the suction cup structure 330 to swing slightly in the vertical direction, thereby avoiding the occurrence of hidden cracks when the suction cup structure 330 is hard-connected and adsorbs the battery cell; the number of the elastic members 340 can be three, four or five, which is not limited here.

[0057] During the adsorption process, the bottom end surface is adsorbing the solar cell 400 and is affected by the gravity of the solar cell 400. The bottom surface of the suction cup structure 330 is subjected to the pulling force caused by gravity. During the adsorption process of the solar cell 400, the top surface is affected by the adsorption force and the surface of the suction cup structure 330 tends to move upward, resulting in an upward swing movement of the suction cup structure 330. Thus, by adsorbing the solar cell on both sides of the suction cup structure 330 and setting the step groove 3211, the swing amplitude of the solar cell adsorption process can be made smaller, thereby effectively avoiding hidden cracks or fragments of the solar cell during the adsorption process.

[0058] See also Figures 9 and 10The suction cup structure 330 includes a suction cup body 331, and a first suction nozzle 332 and a second suction nozzle 333 arranged on the end surfaces of both sides of the suction cup body 331. The first suction nozzle 332 and the second suction nozzle 333 are respectively used for adsorption and transfer of battery cells. A first sealed chamber 3322 is arranged in the first suction nozzle 332, and a second sealed chamber 3332 is arranged in the second suction nozzle 333. The first sealed chamber 3322 and the second sealed chamber 3332 are isolated from each other, and the first sealed chamber 3322 and the second sealed chamber 3332 are respectively sealed and connected to a double ventilation hose 350.

[0059] Specifically, a plurality of first suction holes 3321 are provided on the surface of the first suction nozzle 332, and the first suction holes 3321 are communicated with the first sealed chamber 3322. A second suction hole 3331 is provided on the surface of the second suction nozzle 333, and the second suction hole 3331 is communicated with the second sealed chamber 3332. The number of the first suction hole 3321 and the second suction hole 3331 can be one, two, three or four, and the specific number can be selected according to actual needs and is not limited here.

[0060] It should be noted that there are two pipelines in the dual-ventilation hose 350, one of which is connected to the first sealed chamber 3322, and the other is connected to the second sealed chamber 3332. The first sealed chamber 3322 and the second sealed chamber 3332 are isolated from each other. One end of the dual-ventilation hose 350 is connected to the vacuum pump through the second air source pipeline 312 and the first air source pipeline 213. With this arrangement, the air pressures in the first sealed chamber 3322 and the second sealed chamber 3332 do not interfere with each other, so that the battery cells can be adsorbed and transferred on one side, thereby improving the applicability of the suction cup device 20.

[0061] The suction cup device 20 in the above embodiment is installed on the side surface of the fixed base 200 at equal intervals through the suction cup assembly 300, and the first air source pipeline 213 set in the fixed base 200 is sealed and connected with the second air source pipeline 312 set in the suction cup assembly 300. A plurality of suction cup accommodating openings 321 are provided on the surface of the mounting plate 320 of the suction cup assembly 300 at intervals, and the suction cup accommodating openings 321 are provided with downward stepped grooves 3211 around the edges, and a suction cup structure 330 is installed in each suction cup accommodating opening 321. The four corners of the suction cup structure 330 are connected to the edge of the suction cup accommodating opening 321 through elastic members 340. In the normal state, the upper surface of the suction cup structure 330 is in contact with the stepped grooves 3211. The inner surface of the groove 3211 is in conflict with each other, and the first suction nozzle 332 and the second suction nozzle 333 are respectively arranged on the two side surfaces of the suction cup structure 330. The chambers arranged in the first suction nozzle 332 and the second suction nozzle 333 are not connected to each other, and are separately connected to the vacuum pump through double ventilation hoses. When the battery cell is adsorbed, the upper and lower surfaces of a suction cup structure 330 can adsorb the battery cell at the same time, and the stepped groove 3211 arranged on the edge of the suction cup accommodating port 321 can reduce the shaking amplitude of the suction cup structure 330 during the adsorption process, and the adsorption process is more stable, avoiding hidden cracks in the battery cell during adsorption. The battery cells on each side share the suction cup structure 330 during adsorption, which simplifies the structure of the suction cup device.

[0062] In some embodiments, a robot is further provided, comprising a robot arm body and a suction cup device for transferring solar cell sheets as described in any one of the above embodiments, wherein the suction cup device is detachably mounted on the robot arm body.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the utility model.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0066] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A suction cup device for transferring solar cell sheets, characterized in that: include: A fixed base (200), wherein a plurality of limiting protrusions (210) are arranged at intervals along a height direction on the surface of the fixed base (200), a mounting groove (211) is arranged between every two of the limiting protrusions (210), a docking port (214) is provided on the inner surface of each mounting groove (211), a first gas source pipeline (213) is arranged in a vertical direction inside the fixed base (200), and the docking port (214) is in sealed communication with the first gas source pipeline (213); At least one suction cup assembly (300) is mounted on a side surface of the fixed base (200), the suction cup assembly (300) comprising a mounting plate (320), a suction cup structure (330), an elastic member (340) and a dual ventilation hose (350), At least two suction cup accommodating openings (321) are staggeredly provided on the surface of the mounting plate (320), the suction cup structure (330) is installed in the suction cup accommodating opening (321), one end of the elastic member (340) is connected to the suction cup structure (330), and the other end is diagonally connected to the side wall of the suction cup accommodating opening (321), one end of the dual ventilation hose (350) is connected to the suction cup structure (330), and the other end is connected to an external vacuum pump. The suction cup structure (330) comprises a suction cup body (331), and a first suction nozzle (332) and a second suction nozzle (333) arranged on both side end surfaces of the suction cup body (331); the first suction nozzle (332) and the second suction nozzle (333) are respectively used for adsorption and transfer of battery cells.

2. A suction cup device for transferring solar cell sheets according to claim 1, characterized in that: The mounting plate (320) is provided with a downward stepped groove (3211) along the edge of each suction cup receiving opening (321), and two ends of the top surface of the suction cup body (331) respectively contact the inner surface of the stepped groove (3211).

3. A suction cup device for transferring solar cell sheets according to claim 2, characterized in that: Second connection parts (334) are respectively provided at the four corners of the suction cup body (331), a first connection part (322) is provided on the surface of the mounting plate (320) diagonally opposite to the suction cup body (331), and two ends of the elastic member (340) are respectively connected to the first connection part (322) and the second connection part (334).

4. The sucker device for transferring solar cell sheets according to claim 1, characterized in that: A first sealed chamber (3322) is arranged in the first suction nozzle (332), and a second sealed chamber (3332) is arranged in the second suction nozzle (333). The first sealed chamber (3322) and the second sealed chamber (3332) are arranged to be isolated from each other, and the first sealed chamber (3322) and the second sealed chamber (3332) are respectively sealed and connected to the dual ventilation hose (350).

5. A suction cup device for transferring solar cell sheets according to claim 4, characterized in that: A plurality of first suction holes (3321) are provided on the surface of the first suction nozzle (332), and the first suction holes (3321) are connected to the first sealed chamber (3322); a second suction hole (3331) is provided on the surface of the second suction nozzle (333), and the second suction hole (3331) is connected to the second sealed chamber (3332).

6. The sucker device for transferring solar cell sheets according to claim 1, characterized in that: A connection block (310) is fixedly provided at one end of the mounting plate (320), a second air source pipeline (312) is provided in the connection block (310), and one end of each of the dual-ventilation hoses (350) away from the suction cup assembly (300) is sealed and connected to the second air source pipeline (312).

7. A suction cup device for transferring solar cell sheets according to claim 6, characterized in that: The connection block (310) is fixedly installed in the installation groove (211), and the second gas source pipeline (312) is sealed and connected to the first gas source pipeline (213) via the docking port (214).

8. A robot, characterized in that: The robot comprises a robot arm body and a suction cup device for transferring solar cell sheets as claimed in any one of claims 1 to 7, wherein the suction cup device is detachably mounted on the robot arm body.

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