A solar cell loading, slicing, splitting and transporting device

Abstract

The present invention discloses a solar cell feeding, slicing, splitting and transporting device, including: a cell feeding mechanism, a cell transporting and slicing mechanism, a cell splitting mechanism and a manipulator grabbing mechanism. Through the above-mentioned method, the solar cell feeding, slicing, splitting and transporting device provided by the present invention can realize automatic grabbing and string stacking of small cell sheets, automatic adjustment of the laser focus after the cell sheet format is switched, and positive pressure blowing to prevent cutting dust from affecting the operation of the laser, thereby improving the yield of the cell sheet, improving the production efficiency of the equipment, and reducing the cost of solar cell cutting components.

Description

Technical Field

[0001] The invention relates to the technical field of solar photovoltaic component equipment, and in particular to a solar cell chip loading, slicing, splitting and conveying device. Background Art

[0002] Solar cell technology is developing rapidly, and the demand for half-cell and multi-cell (N>2) and other component technologies is increasing. As an important component of solar power generation, the manufacturing technology of photovoltaic modules has not changed much for a long time. Low conversion efficiency and small power increase have always hindered the large-scale promotion and application of solar power generation. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a solar cell loading, slicing, splitting and transporting device, which improves the production efficiency of the equipment, prolongs the service life of the laser, reduces the cost and reduces the space occupied by the equipment.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a solar cell loading, slicing and splitting and conveying device, including: a cell feeding mechanism, a cell conveying and slicing mechanism, a cell splitting mechanism and a robot gripping mechanism; the cell feeding mechanism includes a material box conveyor line, a cell material box arranged on the conveyor line, a material box lifting mechanism, a cell lifting mechanism, an air blowing and dropping mechanism, a rotating material taking and releasing mechanism and a cell conveyor line, the material box conveyor line conveys the cell material box to the material box stopping position, the cell lifting mechanism is used to lift and tighten the cell material box, and the cell lifting mechanism The mechanism is used to lift multiple groups of battery cells in the battery cell material box, the rotating material taking and discharging mechanism is used to absorb multiple groups of battery cells for positive pressure blowing by the blowing and dropping mechanism, the battery cell conveyor line includes a front adsorption plate of the conveyor line and a rear adsorption plate of the conveyor line, the rotating material taking and discharging mechanism rotates the battery cell after blowing by 180° and then puts it into the front adsorption plate of the conveyor line, and the rear adsorption plate of the conveyor line extends to the bottom of the battery cell transport and dicing mechanism; the battery cell transport and dicing mechanism includes: a feeding visual system, a transport module base, a battery cell transport module, a battery cell deviation correction mechanism, and a laser cutting mechanism, and the end of the battery cell conveyor line extends To the top of the transport module base, the feeding vision system is arranged above the end of the battery cell conveyor line, the battery cell transport module is connected to the side of the transport module base, the battery cell correction mechanism is connected to the battery cell transport module to transport the battery cells on the battery cell conveyor line and correct the battery cells, the laser cutting mechanism is arranged on the transport module base to perform laser cutting on the products on the battery cell correction mechanism; the battery cell splitting mechanism includes a post-slicing conveyor line, a post-slicing feeding detection sensor, a splitting mechanism, a splitting mechanism, an A / B zone post-slicing conveyor line, and an NG sheet conveyor. The battery cell handling module carries the diced battery cells to the post-dicing conveyor line, the post-dicing feeding detection sensor is used to detect whether the battery cells are in place, the slicing mechanism is installed on the slicing mechanism, the slicing mechanism drives the slicing mechanism to break the battery cells and separate the sliced ​​small battery cells by a certain distance and then put them into the A / B area post-slicing conveyor line, the NG cell conveyor line is used to receive unqualified large battery cells detected by the feeding visual system, the manipulator grabbing mechanism receives the defect signal of the small battery cells detected by the post-slicing visual inspection mechanism, and grabs the small battery cells after slicing.

[0005] In a preferred embodiment of the present invention, the rotary material picking and unloading mechanism includes a rotary drive motor, a hollow rotating platform and a suction cup assembly arranged under the hollow rotating platform, the suction cup assembly is used to take the battery cell and rotate it 180° and then place it on the front adsorption plate of the conveyor line, the air blowing and dropping mechanism includes a sticky film detection sensor and a positive pressure blowing device, and the blowing port in the positive pressure blowing device is aimed at the battery cell grabbed by the suction cup assembly to perform a blowing operation.

[0006] In a preferred embodiment of the present invention, the battery cell conveyor line includes a conveyor line support frame, a conveyor line drive mechanism, an adsorption belt, a front battery cell adsorption plate, a rear battery cell adsorption plate, and an incoming material detection sensor for detecting whether the battery cell is loaded. The rear portion of the conveyor line drive mechanism and the conveyor line support frame are arranged on a handling module base, the front battery cell adsorption plate and the rear battery cell adsorption plate are arranged on the conveyor line support frame, the adsorption belt surrounds the outer periphery of the front battery cell adsorption plate and the rear battery cell adsorption plate, the conveyor line drive mechanism drives the adsorption belt to operate to convey the battery cell, and the adsorption belt, the front battery cell adsorption plate and the rear battery cell adsorption plate are provided with conveying adsorption holes for adsorbing the battery cell.

[0007] In a preferred embodiment of the present invention, the loading vision system includes an area array camera, an area array camera bar light source, a light source cover, a backlight source, a line scan camera, and a line scan camera bar light source. The line scan camera and the line scan camera bar light source are arranged between the front adsorption plate of the battery cell and the rear adsorption plate of the battery cell to detect defects on the back of the battery cell. The light source cover is arranged above the rear adsorption plate of the battery cell, the area array camera and the area array camera bar light source are arranged in the light source cover, and the backlight source is arranged on the bottom surface or below the rear adsorption plate of the battery cell to judge the front defects of the battery cell and determine the grid line coordinates of the battery cell.

[0008] In a preferred embodiment of the present invention, the battery cell transport module includes a screw module, a transport connecting frame, and a Z-axis lifting mechanism. The screw module is connected to the transport connecting frame and drives the transport connecting frame to move back and forth. The Z-axis lifting mechanism is arranged on the transport connecting frame and drives the battery cell correction mechanism to move up and down.

[0009] In a preferred embodiment of the present invention, the slicing mechanism includes: an X-axis slicing module, a Y-axis slicing module and a Z-axis slicing and rotation module, the Z-axis slicing and rotation module is installed on the X-axis slicing module, the X-axis slicing module is installed on the Y-axis slicing module, and the slicing mechanism is installed on the Z-axis slicing and rotation module.

[0010] In a preferred embodiment of the present invention, the splitting mechanism includes an upper top plate, an I-shaped support plate, a first splitting plate, a second splitting plate, a battery panel suction cup, a splitting spacing drive mechanism and a splitting drive mechanism, the upper top plate is fixedly connected to the first splitting plate and locked on the Z-axis film picking and rotation module, the I-shaped support plate is slidably connected to the bottom of the upper top plate, the second splitting plate is slidably connected to the first splitting plate and is rotatably connected to the I-shaped support plate through a rotating shaft, the splitting drive mechanism drives the second splitting plate to move to break off the adsorbed battery cells, and the splitting spacing drive mechanism is used to separate the small battery cells after splitting.

[0011] In a preferred embodiment of the present invention, the split drive mechanism includes a split cylinder connected to the I-type support plate, a split limit plate arranged above the second split plate and a split spring, one end of the split spring is fixedly connected to the second split plate, and the other end is fixedly connected to the upper top plate; the split spacing drive mechanism includes a spacing cylinder, a linear guide rail arranged between the upper top plate and the I-type support plate, and a buffer, the spacing cylinder can push the I-type support plate to drive the second split plate to move horizontally along the direct guide rail, and the buffer is used to limit the horizontal movement of the I-type support plate.

[0012] In a preferred embodiment of the present invention, it also includes a half-cell rotating mechanism for rotating the battery cell after adsorption and splitting and adjusting the chamfering direction according to the feeding count signal of the splitting mechanism in the PLC control system and the number of times the conveyor belt moves after A / B zone splitting.

[0013] In a preferred embodiment of the present invention, the robot arm grabbing mechanism includes a robot arm disposed on a support base and a grabbing suction cup disposed on the robot arm for sucking the battery sheet.

[0014] The beneficial effects of the present invention are: it can realize automatic grabbing and string stacking of small solar cells, automatically adjust the laser focus after the solar cell format is switched, and positive pressure blowing prevents cutting dust from affecting the operation of the laser, thereby improving the yield of the solar cell, improving the production efficiency of the equipment, and reducing the cost of solar cell cutting components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of a solar cell loading, slicing, splitting and transporting device of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the battery cell feeding mechanism in the present invention;

[0018] Figure 3 It is a schematic diagram of the overall structure of a preferred embodiment of the battery cell transport and dicing mechanism of the present invention;

[0019] Figure 4 It is a structural schematic diagram of a battery cell conveying line in a battery cell transporting and dicing mechanism of the present invention;

[0020] Figure 5It is a structural schematic diagram of a dicing vision system in a cell transport and dicing mechanism of the present invention;

[0021] Figure 6 It is a structural schematic diagram of a battery cell transport module in the battery cell transport and dicing mechanism of the present invention;

[0022] Figure 7 It is a structural schematic diagram of a cell sheet deviation correction mechanism in a cell sheet transport and dicing mechanism of the present invention;

[0023] Figure 8 It is a structural schematic diagram of a half-cell cutting mechanism in a cell transport and dicing mechanism of the present invention;

[0024] Fig. 9 It is a structural schematic diagram of a multi-sheet cutting mechanism in a battery sheet transporting and dicing mechanism of the present invention;

[0025] Fig.10 It is a schematic diagram of the structure of the laser and focusing mirror optical components in the cell transport and scribing mechanism of the present invention;

[0026] Fig.11 It is an overall schematic diagram of the battery sheet splitting mechanism in the present invention;

[0027] Fig.12 It is a structural schematic diagram of a cell splitting mechanism in a cell splitting mechanism of the present invention;

[0028] Fig.13 It is a structural schematic diagram of the mechanical hand sheet grabbing mechanism of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 , the embodiment of the present invention includes: a solar cell feeding, slicing, splitting and transporting device, including: a cell feeding mechanism 100, a cell transporting and slicing mechanism 200, a cell splitting mechanism 300 and a robot gripping mechanism 400;

[0031] See also Figure 2The cell feeding mechanism 100 includes a material box conveying line 1001, a cell material box 1002 arranged on the conveying line, a material box lifting mechanism 1003, a cell lifting mechanism 1004, an air blowing and dropping mechanism 1005, a rotary material taking and releasing mechanism 1006 and a cell conveying line 1007. The material box conveying line transfers the cell material box to the material box stop station 1008. The cell lifting mechanism is used to lift and tighten the cell material box. The cell lifting mechanism is used to lift multiple groups of cells in the cell material box. The rotary material taking and releasing mechanism is used to suck multiple groups of cells. In order to provide positive pressure blowing for the air blowing and sheet dropping mechanism, the rotating material picking and placing mechanism includes a rotating drive motor 1009, a hollow rotating platform 1010 and a suction cup assembly 1011 arranged below the hollow rotating platform. The air blowing and sheet dropping mechanism includes a sticky sheet detection sensor 1014 and a positive pressure blowing device 1015. The blowing port in the positive pressure blowing device is aimed at the battery cell grasped by the suction cup assembly to perform a blowing operation. The suction cup assembly grasps the battery cell and rotates 180° before delivering it to the battery cell conveyor line. The second half of the battery cell conveyor line extends to the bottom of the battery cell transport and dicing mechanism.

[0032] The cell conveyor line includes a conveyor line support frame 2009, a conveyor line drive mechanism 2010, an adsorption belt, a front cell adsorption plate 2011, a rear cell adsorption plate 2012, and an incoming material detection sensor. The rear part of the conveyor line drive mechanism and the conveyor line support frame is arranged on the base of the handling module. The front cell adsorption plate and the rear cell adsorption plate are arranged on the conveyor line support frame. The adsorption belt surrounds and is tightly attached to the outer periphery of the front cell adsorption plate and the rear cell adsorption plate. The conveyor line drive mechanism drives the adsorption belt to operate to convey the cell. At the same time, the adsorption belt, the front cell adsorption plate and the rear cell adsorption plate are provided with conveying adsorption holes to prevent the cell from deflecting or falling. The incoming material detection sensor can be arranged on the conveyor line support frame or the front cell adsorption plate, or can be located above the adsorption belt. Among them, the front cell adsorption plate and the rear cell adsorption plate can be an integrated structure or a split structure.

[0033] Working principle of the battery cell feeding mechanism: manually place multiple groups (N≤5) of two-station battery cell boxes on the box conveyor line, transfer the battery cell box to the box stop station, the tensioning cylinder in the box lifting mechanism lifts the box, tightens the box to prevent shaking, the sensor on the box conveyor line detects the box in place and stops, the battery cell lifting mechanism lifts two groups of multiple battery cells (N≤220), and stops after lifting to a certain height; the rotary drive motor drives the hollow rotary platform, driving the four-station suction cup assembly to grab the battery cell, the sticky detection sensor detects the grabbed battery cell, The positive pressure blowing device includes two blowing ports and is connected to an external air source to perform positive pressure blowing on the battery cells to prevent the battery cells from sticking to each other and causing fragments. After the blowing is completed, the hollow rotary drive mechanism rotates 180° to place two battery cells on the front adsorption plate of the conveyor line. The rotary material picking and placing mechanism repeats the work, and the battery cell lifting mechanism lifts the battery cells one by one. When the sensor on the material box conveyor line detects that there is no battery cell in any of the two station material boxes, the material box lifting mechanism descends, and the empty material box is transferred to the manual material box picking station, and the material box with material is transferred to the material box lifting station, and the above work is repeated.

[0034] The battery cell transmission line drive mechanism works, and the adsorption belt rotates to transmit the battery cell to the adsorption plate behind the conveyor line. During the transmission process, it passes through the line scan camera 2017 in the feeding vision system. The line scan camera takes pictures to detect defects on the back of the battery cell.

[0035] See also Figure 3-10 The cell transport and dicing mechanism 200 includes: a loading visual system 2002, a transport module base 2003, an A-area cell transport module 2004, a B-area cell transport module 2005, an A-area cell correction mechanism 2006, a B-area cell correction mechanism 2007, and a laser cutting mechanism 2008.

[0036] The loading vision system is arranged above the end of the battery cell conveyor line, the battery cell handling module in area A and the battery cell handling module in area B are relatively arranged on both sides of the handling module base, the battery cell correction mechanism in area A is connected to the battery cell handling module in area A, and the battery cell correction mechanism in area B is connected to the battery cell handling module in area B to carry the battery cells on the battery cell conveyor line and correct the battery cells, and the laser cutting mechanism is arranged on the handling module base to laser cut the products on the battery cell correction mechanism in area A / B.

[0037] The feeding vision system comprises an area array camera 2013, an area array camera strip light source 2014, a light source cover 2015, a backlight source 2016, a line scan camera 2017, and a line scan camera strip light source 2018. The line scan camera and the line scan camera strip light source are arranged between the front adsorption plate and the rear adsorption plate of the battery cell to detect defects on the back of the battery cell. The light source cover is arranged above the rear adsorption plate of the battery cell. The area array camera and the area array camera strip light source are arranged in the light source cover. The backlight source is arranged on the bottom surface or below the rear adsorption plate of the battery cell (and between the upper and lower adsorption belts) to judge the front defects of the battery cell and determine the grid line coordinates of the battery cell.

[0038] The structure of the cell handling module in area A is the same as that of the cell handling module in area B. The cell handling module includes a screw module 2019, a handling connection frame 2020, and a Z-axis lifting mechanism 2021. The screw module is connected to the handling connection frame and drives the handling connection frame to move back and forth. The Z-axis lifting mechanism is arranged on the handling connection frame and drives the cell correction mechanism to move up and down. The Z-axis lifting mechanism can adopt a variety of existing drive devices such as a cylinder, an oil cylinder, and a screw.

[0039] The structure of the battery cell correction mechanism in area A is the same as that of the battery cell correction mechanism in area B. The battery cell correction mechanism includes an X-axis adjustment slide 2022, an R-axis adjustment slide 2023, a correction adsorption plate 2024, a correction suction cup, a suction cup adjustment mechanism 2026, a correction suction hole and a correction support frame 2027, wherein the correction support frame is connected to the Z-axis lifting mechanism, the X-axis adjustment slide is arranged on the correction support frame, the X-axis adjustment slide is connected to the R-axis adjustment slide, and drives the R-axis adjustment slide to translate along the X-axis, the R-axis adjustment slide is connected to the adsorption plate, and drives the correction adsorption plate to rotate, and the correction suction cup, suction cup adjustment mechanism and correction suction hole for adsorbing the battery cell are arranged on the correction adsorption plate, wherein the correction suction cup can be arranged at the four corners of the adsorption plate, and the suction cup adjustment mechanism is connected to the correction suction cup.

[0040] Since the battery cells have different formats (158-210), it is necessary to select half-cell cutting and multiple-cell cutting (N>2) according to the format, so the laser cutting mechanism can be divided into a half-cell cutting mechanism and a multiple-cell cutting mechanism (the number of cells after cutting is greater than 2).

[0041] The half-sheet cutting mechanism includes a laser and focusing mirror optical assembly 2028, an X-axis laser automatic adjustment slide 2029, a Z-axis laser automatic adjustment mechanism 2030 and a half-sheet dust collection mechanism 2031. The laser and focusing mirror optical assembly is connected to the X-axis laser automatic adjustment slide via a laser mounting frame, and the Z-axis laser automatic adjustment mechanism drives the X-axis laser automatic adjustment slide to move up and down (the Z-axis laser automatic adjustment mechanism can be fixed on the top frame) to automatically complete the focus adjustment of the laser, and the half-sheet dust collection mechanism is arranged on the upper part of the laser and focusing mirror optical assembly. Among them, the Z-axis laser automatic adjustment mechanism can adopt a variety of driving devices such as a Z-axis slide, a lifting cylinder, etc.

[0042] The multi-piece cutting mechanism includes two structures:

[0043] Structure 1: a three-slice cutting mechanism, which includes a laser and focusing mirror optical component, an X-axis laser automatic adjustment slide, a Z-axis laser automatic adjustment slide 2032, a Z-axis automatic adjustment mechanism and a three-slice dust suction mechanism. The three-slice laser cutting mechanism includes two laser and focusing mirror optical components. The X-axis laser automatic adjustment slide and the Z-axis laser automatic adjustment slide cooperate to drive the two laser and focusing mirror optical components to translate and lift. The X-axis laser automatic adjustment slide adjusts the spacing between the two laser and focusing mirror optical components to adapt to different cutting spacing requirements of the battery cells. At the same time, after the Z-axis laser automatic adjustment slide is debugged, the focal points of the two lasers and focusing mirror optical components are ensured to be coplanar so as to maintain the consistency of cutting. The Z-axis automatic adjustment mechanism can drive the laser and focusing mirror optical component, the X-axis laser automatic adjustment slide and the Z-axis laser automatic adjustment slide to lift and lower through the automatic adjustment frame to facilitate cutting.

[0044] Any one or more of the two laser and focusing mirror optical components are connected to the X-axis laser automatic adjustment slide, and the Z-axis laser automatic adjustment slide can be efficiently connected to any one or more laser and focusing mirror optical components, and can also be connected to any one or more X-axis laser automatic adjustment slides, so as to meet the needs of real-time adjustment of the positions and respective heights of the two laser and focusing mirror optical components.

[0045] Structure 2: Multi-piece cutting mechanism, which includes a laser and focusing mirror optical component, an X-axis laser automatic adjustment slide, a Z-axis automatic adjustment mechanism, a beam splitter for dividing one laser into N lasers, and a multi-piece dust collection mechanism. The laser and focusing mirror optical component is connected to the X-axis laser automatic adjustment slide through a laser mounting frame, and the Z-axis laser automatic adjustment mechanism drives the X-axis laser automatic adjustment slide to move up and down. The beam splitter is connected to the laser emitting end of the laser and focusing mirror optical component. The multi-piece dust collection mechanism is arranged on the upper part of the laser and focusing mirror optical component, and the beam splitter is used to divide one laser into N lasers, and the optical path can be freely selected or used simultaneously to complete the multi-piece cutting of the battery cell.

[0046] The laser and focusing mirror optical assembly comprises a laser body 2033, an optical device mounting seat 2034, a beam expander 2035, a focusing mirror 2036, a laser protective glass 2037, a positive pressure air blowing device 2038, an air blowing port 2039, an air blowing cavity 2040, and a laser port 2041. The laser body for emitting laser is connected to the laser mounting seat, the optical device mounting seat is arranged at the top of the laser mounting seat, the air blowing cavity, the laser protective glass, the focusing mirror, and the beam expander are arranged in the optical device mounting seat from top to bottom in sequence, the top surface of the optical device mounting seat is provided with a laser port connected to the air blowing cavity, the side wall of the optical device mounting seat is provided with an air blowing port connected to the air blowing cavity, and the positive pressure air blowing device is connected to the air blowing port to prevent cutting dust from affecting the operation of the laser and prolong the service life of the laser.

[0047] The half-piece dust collection mechanism includes a dust collection hood 2042, a dust collection port 2043, a laser cutting hole 2044 that allows the laser to pass through, and a dust exhaust duct 2045. The dust collection hood is arranged on the top of the laser and focusing lens optical components, and the top surface of the dust collection hood is provided with the laser cutting hole and a plurality of the dust collection ports. The dust exhaust duct is connected to the dust collection hood so as to remove dust in time.

[0048] Please see Figure 11-12The cell splitting and slicing mechanism 300 includes a post-slicing conveyor line 3001, a post-slicing feeding detection sensor 3002, a splitting mechanism 3003, a slicing mechanism 3004, an A / B zone post-slicing conveyor line 3005, an NG cell conveyor line 3006, and a post-slicing visual inspection mechanism 3007. The cell transport module transports the cell after slicing to the post-slicing conveyor line. The post-slicing feeding detection sensor is used to detect whether the cell is in place. The splitting mechanism is installed on the slicing mechanism. The slicing mechanism drives the splitting mechanism to break the cell and separate the small cell pieces after slicing by a certain distance and then put them into the A / B zone post-slicing conveyor line. The NG cell conveyor line is used to receive unqualified large cell pieces detected by the feeding visual system. The manipulator grabbing mechanism receives the defect signal of the small cell pieces detected by the post-slicing visual inspection mechanism and grabs the small cell pieces after slicing.

[0049] Specifically, the slicing mechanism includes: an X-axis slicing module 3008, a Y-axis slicing module 3009 and a Z-axis slicing and rotating module 3010, wherein the Z-axis slicing and rotating module is mounted on the X-axis slicing module, the X-axis slicing module is mounted on the Y-axis slicing module, the slicing mechanism is mounted on the Z-axis slicing and rotating module, and the slicing mechanism includes an upper top plate 3011, an I-shaped support plate 3012, a first slicing plate 3013, a second slicing plate 3014, an electric The cell plate suction cup 3015, the split spacing drive mechanism and the split driving mechanism, the upper top plate is fixedly connected to the first split plate and locked on the Z-axis chip picking and rotation module, the I-type support plate is slidably connected to the bottom of the upper top plate, the second split plate is slidably connected to the first split plate and is rotationally connected to the I-type support plate through a rotating shaft, the split driving mechanism drives the second split plate to move to break off the adsorbed battery cells, and the split spacing drive mechanism is used to separate the small battery cells after splitting.

[0050] Specifically, the split drive mechanism includes a split cylinder 3016 connected to the I-type support plate, a split limit plate 3017 arranged above the second split plate, and a split spring 3018, one end of the split spring is fixedly connected to the second split plate, and the other end is fixedly connected to the upper top plate; the split spacing drive mechanism includes a spacing cylinder 3019, a linear guide rail 3020 and a buffer 3021 arranged between the upper top plate and the I-type support plate, the spacing cylinder can push the I-type support plate to drive the second split plate to move horizontally along the direct guide rail, and the buffer is used to limit the horizontal movement of the I-type support plate.

[0051] The working principle of the battery cell splitting mechanism: after the diced battery cell is transported to the post-dicing conveyor line, the post-dicing feeding detection sensor detects that the battery cell is in place, and transmits the battery cell to the splitting grabbing station, and the detected uncut battery cell flows to the NG sheet conveyor line; the Z-axis picking and rotating module drives the splitting mechanism to adsorb the battery cell, and the splitting drive mechanism adsorbs the laser-cut battery cell through the first splitting plate, the second splitting plate and the battery plate suction cup. After the adsorption is completed, the splitting cylinder contracts upward, and the splitting spring pulls the second splitting plate to bend upward to a certain angle to break the battery cell, and the spacing cylinder moves horizontally to push the second splitting plate to move along the linear guide rail to separate the split small battery cells by a certain distance, which is convenient for the subsequent robot hand to grab the sucker to work. After the spacing cylinder moves a certain distance, the splitting cylinder moves downward to support the limit plate to ensure that the first splitting plate and the second splitting plate remain horizontal. After the above actions are completed, the battery cell is put in, the spacing cylinder contracts, returns to the initial position, and the above operations are repeated in sequence.

[0052] The X-axis slicing module in the slicing mechanism drives the splitting mechanism to place the cells onto the A / B area slicing conveyor line respectively. While the X-axis slicing module moves, the Z-axis retrieval and rotation module rotates 90° to adjust the cell grid line direction so that the cell grid line is parallel to the Y-axis direction.

[0053] The post-slicing conveyor line transfers the battery cell to the backlight adsorption station 3022 of the post-slicing visual inspection mechanism. The area array camera in the post-slicing visual inspection mechanism takes pictures, locates and detects small battery cells, and takes three small pieces each time. According to the feeding counting signal of the slicing mechanism in the PLC control system and the number of movements of the A / B zone post-slicing conveyor line belt, the half-cell rotation mechanism 3023 adsorbs the small piece and rotates 180° to adjust the direction of the small battery cell so that the chamfer direction is aligned. It should be noted that the half-cell rotation mechanism is not limited to a specific structure, and it includes components such as a suction cup assembly and a rotating cylinder in the prior art.

[0054] See also Fig.13 The robot arm grabbing mechanism 400 includes a robot arm 4002 arranged on a supporting base 4001 and a grabbing suction cup 4003 for sucking the battery cell arranged on the robot arm. The robot arm communicates with the area array camera and the PLC controller in the post-splitting visual inspection mechanism. The robot arm drives the grabbing suction cup to pick up the cell, one cell at a time, twice. After each cell is picked up, the position of the cell is adjusted according to the positioning result of the area array camera. After the cell is grabbed, it is placed on the subsequent welding station.

[0055] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A solar cell loading, slicing, splitting and transporting device, characterized in that: include: A battery cell feeding mechanism, a battery cell transporting and slicing mechanism, a battery cell splitting and slicing mechanism and a robot gripping mechanism; the battery cell feeding mechanism includes a material box conveyor line, a battery cell material box arranged on the conveyor line, a material box lifting mechanism, a battery cell lifting mechanism, an air blowing and dropping mechanism, a rotary material taking and releasing mechanism and a battery cell conveyor line, the material box conveyor line conveys the battery cell material box to the material box stop position, the battery cell lifting mechanism is used to lift and tighten the battery cell material box, the battery cell lifting mechanism is used to lift multiple groups of battery cells in the battery cell material box, the rotary material taking and releasing mechanism is used to absorb multiple groups of battery cells for positive pressure blowing by the air blowing and dropping mechanism, the battery cell conveyor line includes a front adsorption plate of the conveyor line and a rear adsorption plate of the conveyor line, the rotary material taking and releasing mechanism rotates the battery cell after blowing by 180° and then puts it into the front adsorption plate of the conveyor line, and the rear adsorption plate of the conveyor line extends to the bottom of the battery cell transporting and slicing mechanism; The cell transport and slicing mechanism comprises: a feeding vision system, a transport module base, a cell transport module, a cell correction mechanism, and a laser cutting mechanism. The feeding vision system is arranged above the end of the cell conveyor line, the cell transport module is connected to the side of the transport module base, the cell correction mechanism is connected to the cell transport module to transport the cells on the cell conveyor line and correct the cell deviation, and the laser cutting mechanism is arranged on the transport module base to perform laser cutting on the products on the cell correction mechanism; The slice splitting and slicing mechanism includes a post-slicing conveyor line, a post-slicing feeding detection sensor, a splitting mechanism, a slicing mechanism, an A / B zone post-slicing conveyor line, an NG slice conveyor line, and a post-slicing visual detection mechanism. The cell transport module transports the cell after slicing to the post-slicing conveyor line. The post-slicing feeding detection sensor is used to detect whether the cell is in place. The splitting mechanism is installed on the slicing mechanism. The slicing mechanism drives the splitting mechanism to break the cell and separate the small cell after slicing by a certain distance and then put it into the A / B zone post-slicing conveyor line. The NG slice conveyor line is used to The unqualified large battery slices detected by the feeding visual system are received, and the manipulator grabbing mechanism is used to receive the defect signals of the small battery slices detected by the visual inspection mechanism after the splitting, so as to grab the small battery slices after the splitting. The battery slice conveyor line includes a conveyor line support frame, a conveyor line drive mechanism, an adsorption belt, a front adsorption plate for the battery slice, a rear adsorption plate for the battery slice, and an incoming material detection sensor for detecting whether the battery slice is fed. The rear part of the conveyor line drive mechanism and the conveyor line support frame is arranged on the base of the handling module, and the front adsorption plate for the battery slice and the rear adsorption plate for the battery slice are arranged on the conveyor line On the support frame, the adsorption belt is wrapped around the outer circumference of the front adsorption plate and the rear adsorption plate of the battery cell, the conveyor line driving mechanism drives the adsorption belt to operate to convey the battery cell, and the adsorption belt, the front adsorption plate and the rear adsorption plate of the battery cell are provided with conveying adsorption holes for adsorbing the battery cell. The slicing mechanism includes: an X-axis slicing module, a Y-axis slicing module and a Z-axis slicing and rotating module. The Z-axis slicing and rotating module is installed on the X-axis slicing module, the X-axis slicing module is installed on the Y-axis slicing module, and the slicing mechanism is installed on the Z-axis slicing and rotating module.

2. The solar cell loading, slicing, splitting and transporting device according to claim 1, characterized in that: The rotary material picking and unloading mechanism includes a rotary drive motor, a hollow rotating platform and a suction cup assembly arranged below the hollow rotating platform. The suction cup assembly is used to pick up the battery cell and rotate it 180° before placing it on the front adsorption plate of the conveyor line. The air blowing and dropping mechanism includes a sticky cell detection sensor and a positive pressure blowing device. The blowing port in the positive pressure blowing device is aimed at the battery cell grabbed by the suction cup assembly to perform a blowing operation.

3. The solar cell loading, slicing, splitting and transporting device according to claim 1, characterized in that: The visual system includes an area array camera, a bar light source for the area array camera, a light source cover, a backlight source, a line scan camera, and a bar light source for the line scan camera. The line scan camera and the bar light source for the line scan camera are arranged between a front adsorption plate for a battery cell and a rear adsorption plate for a battery cell to detect defects on the back side of the battery cell. The light source cover is arranged above the rear adsorption plate for the battery cell. The area array camera and the bar light source for the area array camera are arranged in the light source cover. The backlight source is arranged on the bottom surface or below the rear adsorption plate for the battery cell to judge defects on the front side of the battery cell and determine the grid line coordinates of the battery cell.

4. The solar cell loading, slicing, splitting and transporting device according to claim 1, characterized in that: The battery cell transport module includes a screw module, a transport connection frame, and a Z-axis lifting mechanism. The screw module is connected to the transport connection frame and drives the transport connection frame to move back and forth. The Z-axis lifting mechanism is arranged on the transport connection frame and drives the battery cell correction mechanism to move up and down.

5. The solar cell loading, slicing, splitting and transporting device according to claim 1, characterized in that: The splitting mechanism includes an upper top plate, an I-shaped support plate, a first splitting plate, a second splitting plate, a battery plate suction cup, a splitting spacing drive mechanism and a splitting drive mechanism. The upper top plate is fixedly connected to the first splitting plate and locked on the Z-axis film taking and rotating module. The I-shaped support plate is slidably connected to the bottom of the upper top plate. The second splitting plate is slidably connected to the first splitting plate and is rotationally connected to the I-shaped support plate through a rotating shaft. The splitting drive mechanism drives the second splitting plate to move to break off the adsorbed battery cells. The splitting spacing drive mechanism is used to separate the small battery cells after splitting.

6. The solar cell loading, slicing, splitting and transporting device according to claim 5, characterized in that: The split drive mechanism includes a split cylinder connected to the I-shaped support plate, a split limit plate arranged above the second split plate and a split spring, one end of the split spring is fixedly connected to the second split plate, and the other end is fixedly connected to the upper top plate; the split spacing drive mechanism includes a spacing cylinder, a linear guide rail and a buffer arranged between the upper top plate and the I-shaped support plate, the spacing cylinder can push the I-shaped support plate to drive the second split plate to move horizontally along the linear guide rail, and the buffer is used to limit the horizontal movement of the I-shaped support plate.

7. The solar cell loading, slicing, splitting and transporting device according to claim 1, characterized in that: It also includes a half-cell rotating mechanism, which is used to rotate the battery cell after adsorption and splitting and adjust the chamfering direction according to the feeding counting signal of the splitting mechanism and the number of times the conveyor belt moves after A / B zone splitting.

8. The solar cell loading, slicing, splitting and transporting device according to claim 1, characterized in that: The robot arm grabbing sheet mechanism comprises a robot arm arranged on a supporting base and a grabbing sheet suction cup arranged on the robot arm for sucking the battery sheet.

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