Automatic feeding device for photovoltaic panel welding

Abstract

The present application relates to the technical fields of solar panel manufacturing, in particular to a photovoltaic panel welding automatic feeding equipment, comprising a rack, a flat steel plate feeding module and an angle steel feeding module are arranged on the rack, the flat steel plate feeding module comprises a stock bin one, a discharge device one is arranged at the lower end of the stock bin one, a positioning device one is arranged at the end of the discharge device one, flat steel plates are stacked in the stock bin one, and the lowermost flat steel plate is conveyed to the positioning device one through the discharge device one; the angle steel feeding module comprises a stock bin two, a discharge device two is arranged at the lower end of the stock bin two, a positioning device two is arranged at the end of the discharge device two, angle steels are stacked in the stock bin two, and the lowermost angle steel is conveyed to the positioning device two through the discharge device two, the stacked flat steel plates and angle steels can be separated and positioned to the target position, and the welding stability is ensured.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel manufacturing technology, and in particular to an automatic feeding device for photovoltaic panel welding. Background Technology

[0002] Photovoltaic panels are used in large quantities. To facilitate management during installation, they are manufactured into standard modules and then installed on-site. Photovoltaic panels of the same specifications are arranged in rows. When manufacturing standard modules, automatic welding robots are used to weld the brackets. This is then combined with automatic welding feeding equipment to transport angle steel to the predetermined position, where it is picked up by a robotic arm and transported to the welding station for welding. The robotic arm is usually a suction cup robotic arm. Angle steel is usually made through two steps: punching and bending, followed by grinding and finishing. The product consistency is high. After prefabrication, it is usually stored and transported in layers. During use, the robotic arm picks up each panel one by one and places them at the welding position, where the welding robot automatically welds them.

[0003] To ensure that the robotic arm can accurately grasp angle steel, technicians in this field have developed an automatic feeding device that divides the stacked welding materials and transports them to a predetermined position. This device can feed materials stably, but it occupies a large area. There are also devices that discharge from the top, pushing the stacked welding materials upward to a predetermined position, where they are then grasped by the robot. However, since the angle steel is obtained by bending, the consistency is poor. Due to the cumulative differences during stacking, the position of the angle steel on the upper side deviates significantly, resulting in poor grasping stability. Therefore, a modular feeding device is needed to meet the feeding requirements of photovoltaic panel welding. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic feeding device for photovoltaic panel welding.

[0005] This invention is achieved through the following technical solution: an automatic feeding device for photovoltaic panel welding, comprising a frame, a support platform mounted on the frame, and a straight steel plate feeding module and an angle steel feeding module mounted on the support platform.

[0006] The flat steel plate feeding module includes a hopper, a discharge device is provided at the lower end of the hopper, and a positioning device is provided at the end of the discharge device. Flat steel plates are stacked in the hopper, and the bottom flat steel plate is conveyed to the positioning device through the discharge device. The flat steel plate feeding module is set on the support platform through the base plate.

[0007] The angle steel feeding module includes a hopper 2, a discharge device 2 is provided at the lower end of the hopper 2, and a positioning device 2 is provided at the end of the discharge device 2. The angle steels are stacked in the hopper 2, and the bottommost angle steel is conveyed to the positioning device 2 through the discharge device 2. The angle steel feeding module is set on the support platform through the base plate 2.

[0008] Furthermore, the hopper includes two upward-facing side rails, forming a flat steel plate discharge channel between the two side rails. The discharge device is located at the lower end of the discharge channel. The discharge device includes a pressure-bearing slide rail, with the lowermost flat steel plate supported by the pressure-bearing slide rail. A movable push plate is slidably connected to the upper surface of the pressure-bearing slide rail. The movable push plate is connected to a movable drive assembly. The lower end of the side rail is provided with an insertion port that cooperates with the movable push plate. The lower end of the side rail is also provided with a discharge port opposite to the insertion port.

[0009] Furthermore, the positioning device includes a positioning groove located outside the discharge port, and a positioning block that cooperates with a flat steel plate is provided on the side wall of the positioning groove. The pressure-bearing slide rail extends into the positioning groove.

[0010] Furthermore, a through groove is provided in the middle of the movable push plate to reduce the contact area between the movable push plate and the flat steel plate, while also enabling airflow and reducing the resistance between the movable push plate and the flat steel plate.

[0011] Furthermore, the second hopper includes two upward-facing support frames, each of which is equipped with two adjustable positioning plates. The four adjustable positioning plates form a discharge channel two. The second discharge device is located at the lower end of the discharge channel two. The second discharge device includes an automatic positioning structure located at the lower end of the discharge channel two. The automatic positioning structure includes a horizontal positioning post one and a positioning post two, which are parallel to each other. Angle steels in the discharge channel two are stacked in an upward-facing shape. The bottommost angle steel is supported by the positioning post one and the positioning post two. A discharge port two is also provided on the support frame. A contour stop that cooperates with the angle steel is provided at the discharge port two. The bottommost angle steel can be discharged through the bottom of the contour stop.

[0012] Furthermore, the discharge device 2 also includes a movable push block disposed at the lower end of the discharge channel 2. The movable push block is connected to a movable drive assembly 2 and a guide structure. The guide structure includes a linear slider 1. The movable push block is connected to a linear slide rail 1 via the linear slider 1. The movable push block is also connected to a pressure plate. Linear slide rails 2 that cooperate with the ends of the pressure plate are installed on both sides of the cylinder 2. The ends of the pressure plate are connected to the linear slide rails 2 via the linear slider 2. The angle steel falls and is supported by the pressure plate. The support point forms a straight line, which is an unstable support. When the position of the angle steel deviates, it will automatically tilt.

[0013] Furthermore, the second positioning device includes a support seat disposed at the end of the guide structure, a positioning seat disposed on the support seat, and a second positioning groove disposed on the positioning seat to cooperate with the angle steel. The second positioning groove is a contour groove, and the angle steel entering the contour groove fits into the contour groove under its own weight.

[0014] Furthermore, the positioning seat has two extension arms integrally formed on the side facing the second hopper, and a buffer groove is formed between the two extension arms. The moving push block can move into the buffer groove and stop after moving into the buffer groove, pushing the angle steel into the predetermined position in the contour groove. The end of the angle steel extends into the buffer groove. By adjusting the stroke of the second cylinder, the moving push block stops at a position 3-5mm away from the target position. The angle steel continues to move forward under the action of inertia and is then stopped and positioned by the end plate.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. The flat steel plate feeding module is set on the support platform via base plate one, and the angle steel feeding module is set on the support platform via base plate two. This allows for easy adjustment of the position as needed and combination to obtain the feeding system required for photovoltaic panel welding. The flat steel plates are stored in silo one in a stacked manner, and the angle steel is stored in silo two in a stacked manner. This method has a small footprint and a large storage capacity. The flat steel plates are positioned by positioning device one, and the angle steel is positioned by positioning device two, providing a basis for robot grasping and thus ensuring welding quality.

[0017] 2. Within 1 second, the bottommost angle steel is pushed out, impacting it and ensuring its stable ejection. Simultaneously, the upper angle steel vibrates, causing it to fall and be supported by the pressure plate. The support points form a straight line, which is an unstable support. When the angle steel deviates from its position, it will automatically tilt. Due to the larger width and corresponding weight of the base plate, the base plate sinks, causing the angle steel to move towards the fixed positioning plate and fit against it. During the resetting process of the moving push block, the angle steel is disturbed, making the angle steel fit more tightly against the fixed positioning plate, performing secondary positioning, thereby meeting the positioning requirements of the angle steel and ensuring the stability of the robot's grasping.

[0018] 3. By adjusting the stroke of cylinder two, the moving push block stops 3-5mm away from the target position. The angle steel continues to move forward under the action of inertia and is then stopped and positioned by the end plate. The buffer groove provides space for adjusting the stroke of cylinder two. At the same time, the length of the angle steel can be selected as needed through the buffer groove. The angle steel only needs to be supported by the contour groove by more than 2 / 3. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Example 1;

[0020] Figure 2 A schematic diagram of the flat steel plate feeding module;

[0021] Figure 3 This is a schematic diagram of the movable push plate structure;

[0022] Figure 4 This is a schematic diagram of a flat steel plate structure;

[0023] Figure 5 This is a schematic diagram of the angle steel feeding module.

[0024] Figure 6 This is a schematic diagram of the movable pusher structure;

[0025] Figure 7 This is a schematic diagram of the second discharge port structure;

[0026] Figure 8 This is a schematic diagram of the contour-following stop structure;

[0027] Figure 9 This is a schematic diagram of the contour groove structure;

[0028] Figure 10 This is a schematic diagram of an angle steel structure;

[0029] Figure 11 This is a schematic diagram of the positioning plate structure in Example 2;

[0030] Figure 12 This is a schematic diagram of the contour groove structure in Example 3.

[0031] Including: 1. rack; 2. support platform;

[0032] 3. Flat steel plate feeding module; 301. Base plate 1; 302. Cylinder 1; 303. Moving push plate; 304. Heightening plate; 305. Side positioning block; 306. End positioning block; 307. Pressure-bearing slide rail; 308. Vertical plate 1; 309. Positioning plate 1; 310. Through groove; 311. Material distribution slope;

[0033] 4. Angle steel feeding module; 401. Base plate two; 402. Cylinder two; 403. Vertical plate two; 404. Fixed positioning plate; 405. Adjustable positioning plate; 406. Support seat; 407. Positioning seat; 408. Contouring groove; 409. Extension arm; 410. Moving push block; 411. Buffer groove; 412. Contouring stop; 413. Pressure plate; 414. Positioning column one; 415. Linear slide rail one; 416. Linear slide rail two; 417. Discharge port two; 418. Groove; 419. Magnet;

[0034] 5. Flat steel plate; 6. Angle steel; 601. Side plate; 602. Base plate. Detailed Implementation

[0035] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figure 1-10 As shown, an automatic feeding device for photovoltaic panel welding is used to weld the bracket of the photovoltaic panel. The bracket contains a large number of angle steels 6 and straight steel plates 5, which are then welded into a frame. The angle steels 6 are 300-400mm long and 3-4mm thick, and are obtained by cutting the plate and then bending and trimming. The straight steel plates 5 are 3-4mm thick.

[0039] The automatic welding feeding equipment includes a frame 1. The lower end of the frame 1 is equipped with height-adjustable support legs to adjust the overall angle. The upper end of the frame 1 has a support platform 2 made of steel plate. A straight steel plate feeding module 3 and an angle steel feeding module 4 are installed on the support platform 2. The straight steel plate 5 is positioned by the straight steel plate feeding module 3, and the angle steel 6 is positioned by the angle steel feeding module 4.

[0040] In this embodiment, the flat steel plate feeding module 3 includes a hopper 1, which includes two upward-facing side baffles. A dropping channel 1 for the flat steel plate 5 is formed between the two side baffles. The side baffles include upright plates 308, and positioning plates 309 are fixed on both sides of the upright plates 308. The four positioning plates 309 and the two upright plates 308 form the dropping channel 1. By adjusting the positions of the upright plates 308 and the positioning plates 309, the dropping channel 1 conforms to the shape of the flat steel plate 5. The dropping channel 1 and the flat steel plate 5 are fitted with a gap. The flat steel plates 5 are stacked in the hopper 1. Due to the stacking effect, the flat steel plates 5 can fall stably one by one, and the flat steel plates 5 can also be prevented from turning over in the hopper 1.

[0041] A discharge device is installed at the lower end of the hopper. The discharge device is located at the lower end of the material discharge channel. The discharge device includes a pressure-bearing slide rail 307. The lowermost flat steel plate 5 is supported by the pressure-bearing slide rail 307. A movable push plate 303 is slidably connected to the upper surface of the pressure-bearing slide rail 307. The width of the movable push plate 303 is greater than 60% of the length of the flat steel plate 5. The movable push plate 303 cooperates with the side of the flat steel plate 5, thereby ensuring that the flat steel plate 5 is evenly stressed on both sides and preventing the flat steel plate 5 from tilting during the pushing process. There are two pressure-bearing slide rails 307, which are parallel to each other, thus supporting both sides of the flat steel plate 5. The surface of the pressure-bearing slide rail 307 is subjected to high-frequency quenching and hardening treatment to improve wear resistance. The movable push plate 303 is connected to a movable drive assembly, which includes a cylinder 302. The lower end of the side bracket is reserved for cooperation with the movable push plate 303. The insertion port, and the lower end of the side baffle also has a discharge port one opposite to the insertion port. The cylinder one 302 drives the moving push plate 303 to insert into the hopper one from the insertion port, thereby pushing the bottom flat steel plate 5. The bottom flat steel plate 5 moves along the pressure-bearing slide rail 307 and is then pushed out from the discharge port one. When the flat steel plate 5 moves in the hopper one, its two sides are guided by the upright plate one 308. After the bottom flat steel plate 5 is pushed out, the upper side The flat steel plate 5 falls to the point where it is supported by the movable push plate 303. Due to the obstruction of the discharge port 1, only the bottom flat steel plate 5 is pushed out. The thickness of the movable push plate 303 is less than the thickness of the flat steel plate 5, so the pushing force is directly applied to the bottom flat steel plate 5. The movable push plate 303 is driven by the cylinder 302 to retract. The flat steel plate 5 supported by the movable push plate 303 is left in the hopper 1 due to the obstruction of the insertion port.

[0042] The flat steel plate 5 at the bottom is conveyed to the positioning device 1 through the discharge device 1. The positioning device 1 includes a positioning groove 1 installed on the outside of the discharge port 1. A positioning block that cooperates with the flat steel plate 5 is installed on the side wall of the positioning groove 1. The positioning block is integrally formed on the heightening plate 304. The heightening plate 304 surrounds the positioning groove 1. The positioning block includes an end positioning block 306 and a side positioning block 305, thereby accurately positioning the flat steel plate 5 and ensuring the gripping stability of the robot arm. The pressure-bearing slide rail 307 extends into the positioning groove 1.

[0043] During testing, it was found that because the flat steel plate 5 was punched from sheet metal, with ground edges and coated with anti-rust oil, the tight fit between the flat steel plates 5 resulted in significant resistance during separation when the bottom flat steel plate 5 was pushed out by the moving push plate 303. Furthermore, the thinness of the contact area between the moving push plate 303 and the flat steel plate 5 made it prone to wear, and vibration noise was generated when the flat steel plates 5 separated. To solve this technical problem, the following methods were attempted during testing.

[0044] Method 1: Increase the distance between the two positioning plates 309 to allow the flat steel plate 5 to move back and forth within a small range. During the back and forth movement of the moving push plate 303, the upper flat steel plate 5 is disturbed, causing the flat steel plates 5 to pre-separate. The test found that the flat steel plate 5 will collide with the positioning plate 309 as a whole. Although it can achieve the separation effect, the vibration has a significant impact on the service life of the equipment.

[0045] Method 2: Adjust the angle of positioning plate 309 so that the material drop channel 1 is tilted at a small angle of 8-10°, thereby causing the flat steel plate 5 to generate relative displacement during the falling process, so as to pre-separate the flat steel plates 5. The test found that when the flat steel plates 5 are tightly attached, a jamming phenomenon will occur. The flat steel plate 5 is stuck in the middle position and will not fall, and it is impossible to store the material in batches by the robot.

[0046] Method 3: Pre-separate the materials before storage. Store 1-3 flat steel plates 5 as a group. This can make the separation between the flat steel plates 5 stable. The disadvantage is that the feeding speed is relatively slow.

[0047] In this embodiment, a through groove 310 is machined in the middle of the movable push plate 303 to reduce the contact area between the movable push plate 303 and the flat steel plate 5, thereby reducing friction. At the same time, it can also form airflow to reduce the resistance between the movable push plate 303 and the flat steel plate 5. In some embodiments, downward support ribs are stamped in the through groove 310 to improve the deformation resistance of the movable push plate 303.

[0048] In this embodiment, the flat steel plate feeding module 3 is installed on the base plate 301 and then on the support platform 2, so as to facilitate the adjustment of its position as needed and the combination to obtain the feeding system required for welding the corresponding photovoltaic panel.

[0049] The angle steel feeding module 4 includes a hopper 2, which includes two upward-facing uprights. Each upright includes a vertical plate 403. Within the support frame, the width of the first wing of the angle steel is fixed and is a side plate 601. The width of the second wing of the angle steel can be selected as needed and is a bottom plate 602. Positioning plates 2 are installed on the vertical plate 403. Positioning plates 2 include a fixed positioning plate 404 that cooperates with the side plate 601 and an adjustable positioning plate 405 that cooperates with the bottom plate 602. The four positioning plates 2 and the vertical plate 403 together form a discharge channel 2. A discharge device 2 is installed at the lower end of the discharge channel 2. The discharge device 2 includes... The automatic positioning structure installed at the lower end of the material feeding channel 2 is designed to address the issue of inconsistent angle steel 6 due to its bending process. The angle steel 6 is stacked with its opening facing upwards within the material feeding channel 2, resulting in poor fit between them. After moving to the bottom, it needs to be positioned to ensure stable material discharge. The automatic positioning structure includes two horizontal positioning posts: a first positioning post 414 and a second positioning post 2. These posts are parallel to each other. The first positioning post 414 is supported under the side plate 601, and the second positioning post 2 is supported under the bottom plate 602, thus supporting the angle steel 6 from both sides. The positioning posts 414 and 602 are connected to the fixed... The positions of the positioning plates 404 are fixed, and correspondingly, the positions of the bent parts of the angle steel 6 are fixed, thus fixing the center of gravity. By reducing the friction between the positioning posts 414 and 414 and the angle steel 6, the angle steel 6 is automatically positioned under gravity. The positioning posts 414 and 414 are quenched and then ground to improve surface hardness and smoothness, thereby reducing the friction between them and the angle steel 6. Tests show that due to the friction between the bottom angle steel 6 and the top angle steel 6, the bottom angle steel 6 cannot automatically position itself under gravity. For positioning, a discharge port 417 is also machined on the upright plate 403. A contour stop 412 that matches the angle steel 6 is installed at the discharge port 417. The angle steel 6 moves along the length direction through the discharge port 417. The lowermost angle steel 6 can be discharged through the lower side of the contour stop 412. The contour stop 412 is connected to the upright plate 403 by bolts and can adjust the angle and height. The lower end of the contour stop 412 is triangular and corresponds to the upper side of the bend of the angle steel 6. When the lowermost angle steel 6 passes through the discharge port 417, the upper angle steel 6 is stopped by the contour stop 412.

[0050] The second discharge device also includes a movable push block 410 installed at the lower end of the second discharge channel. The movable push block 410 mates with the bent part of the lowest angle steel 6. The thickness of the angle steel 6 is 3-4mm, and correspondingly, the thickness of the bent part is also relatively thin. The movable push block 410 mates with the end face of the bent part, and the mating area is small. The movable push block 410 is connected to a guide structure. Specifically, the guide structure includes a linear slider 1. The movable push block 410 is connected to a linear slide rail 415 through the linear slider 1, thereby guiding the movable push block 410. 410 guides and prevents the moving push block 410 from deviating due to excessive force. The moving push block 410 is connected to a second moving drive assembly, which includes a second cylinder 402. The moving push block 410 is also connected to a pressure plate 413. Linear slide rails 416 that cooperate with the ends of the pressure plate 413 are installed on both sides of the second cylinder 402. The ends of the pressure plate 413 are connected to the second linear slide rails 416 through the second linear slider. The pressure plate 413 is stably supported by the first linear slider and the second linear slider.

[0051] The end of the discharge device 2 is connected to the positioning device 2. The positioning device 2 includes a support base 406 installed at the end of the guide structure. A positioning base 407 is installed on the support base 406. A positioning groove 2 that matches the angle steel 6 is machined on the positioning base 407. The positioning groove 2 is a contour groove 408. The angle steel 6 that enters the contour groove 408 fits into the contour groove 408 under its own weight, thereby achieving positioning.

[0052] After the angle steel 6 layers are stacked and placed in silo two, the uniformity of the bent angle steel 6 is poor, and the fit between them is also poor. The differences accumulate upwards during stacking, resulting in a larger positional deviation of the angle steel 6 near the top. During the design process, the following feeding method was attempted.

[0053] Method 1: Use a circulating conveyor to transport angle steel 6, which can avoid cumulative differences, but it occupies a large area;

[0054] Method 2: Stack the angle steel 6 layers in the hopper 2, and then grab the angle steel 6 from the top. Due to the cumulative difference, the position of the angle steel 6 on the top side is more deviated, which leads to poor grabbing stability.

[0055] Method 3: The material is discharged from the lower end of the hopper and then conveyed to the positioning device. The test found that because the angle steel 6 is long and thin, it cannot be stably clamped by the clamping structure, and thus it cannot be stably discharged one by one. Later, a bottom support structure was designed for support. The first attempt was to support the contour groove with higher stability. The angle steel was pushed out of the contour groove by the contour push block. The test found that the accumulated position deviation was not eliminated. The technical solution of this embodiment was obtained after improvement.

[0056] During use, adjust the position of the adjustable positioning plate 405 according to the width of the base plate 602, so that the bottommost angle steel 6 is supported by positioning post one 414 and positioning post two. At the same time, the side plate 601 is attached to the fixed positioning plate 404. After stacking the angle steel 6, place them into the hopper two. This can be done manually or by a robot. For angle steel 6 with high processing precision, manual placement in groups of 4-6 layers can avoid the large resistance caused by the tight fit between the angle steel 6. After placement, tap with a rubber hammer to reduce vibration. Due to differences in placement, a positioning process is performed. Cylinder 2 402 actuates, driving the moving push block 410 to move the lowest angle steel 6. Angle steel 6 moves along positioning post 1 414 and positioning post 2, blocking the upper angle steel 6 through the contour stop 412. The flow valve controls the cylinder to move rapidly, pushing out the lowest angle steel 6 within 1 second, creating an impact on angle steel 6. Angle steel 6 is pushed out stably, while simultaneously vibrating the upper angle steel 6. The upper angle steel 6 falls and is supported by the pressure plate 413. The support points form a straight line, which is an unstable support. When the angle... When the position of steel 6 deviates, it will automatically tilt. Because the base plate 602 is wider and therefore heavier, the base plate 602 sinks to the side, causing the angle steel 6 to move towards the fixed positioning plate 404 and fit against it. During the resetting process of the moving push block 410, the angle steel 6 is disturbed, making the angle steel 6 fit more tightly against the fixed positioning plate 404 for secondary positioning. During the resetting process of the moving push block 410 until it is detached from the underside of the angle steel 6, the angle steel 6 continues to fall and is supported by the first positioning post 414 and the second positioning post, and is pushed out by the next action of the moving push block 410. Guided by the contour groove 408, the angle steel 6 enters the contour groove 408. Because the angle steel 6 is pushed out of the material bin at a relatively high speed, the frictional resistance between it and the contour groove 408 is small when it enters the contour groove 408. After the first two positioning, the angle steel 6 is further guided and positioned by the contour groove 408 under its own weight. When the angle steel 6 is grabbed in the contour groove 408, the wider base plate 602 is grabbed by the suction cup. In the initial stage of the suction cup contacting the angle steel 6, the angle steel 6 is pushed downward to make the angle steel 6 further fit and position itself with the contour groove 408 before being grabbed.

[0057] In this embodiment, the positioning seat 407 has two integrally formed extension arms 409 on the side facing the hopper 2. The extension arms 409 cooperate with the side plate 601 and the bottom plate 602 respectively, and a buffer groove 411 is formed between the two extension arms 409. The moving push block 410 can move into the buffer groove 411. After the moving push block 410 moves into the buffer groove 411, it stops and pushes the angle steel 6 into the predetermined position in the contour groove 408. The end of the angle steel 6 extends into the buffer groove 411. During the test, it was found that the cylinder 2 402 needs 1 second to... The angle steel 6 is pushed out from the inside, so a higher air pressure is required. When the angle steel 6 is directly pushed to the point where it is stopped by the end plate, the impact on the end plate and the moving push block 410 is large, and it may even cause the angle steel 6 to be squeezed and displaced, resulting in a positional deviation. By adjusting the stroke of the second cylinder 402, the moving push block 410 is stopped 3-5mm away from the target position. The angle steel 6 continues to move forward under the action of inertia and is then stopped and positioned by the end plate. The buffer groove 411 can provide space for adjusting the stroke of the second cylinder 402. At the same time, the length of the angle steel 6 can be selected as needed through the buffer groove 411. More than 2 / 3 of the length of the angle steel 6 can be supported by the contour groove 408.

[0058] Angle steel feeding module 4 is installed on base plate 2 401 and then on support platform 2, so that the position can be adjusted as needed and combined to obtain the feeding system required for welding photovoltaic panels.

[0059] Example 2

[0060] like Figure 11 As shown, an automatic feeding device for photovoltaic panel welding differs from Embodiment 1 in that a pre-separation structure is installed at the lower end of the material feeding channel. The lower end of the positioning plate 309 corresponding to the discharge port is bent outward in an arc shape to obtain a material separating slope 311 with a height of 15-20mm. When the moving push plate 303 pushes the flat steel plate at the bottom, when multiple flat steel plates 5 located at the bottom are closely attached, they will move simultaneously and collide with the material separating slope 311, generating vibration, thereby reducing the tightness of the attachment and achieving the pre-separation effect.

[0061] Tests revealed that when the width of the flat steel plate 5 is less than 50mm, stable separation between the flat steel plates 5 can be achieved without pre-separation. When the width of the flat steel plate 5 is 50-80mm, a pre-separation structure is required. When the width of the flat steel plate 5 is greater than 80mm, method three is used.

[0062] Example 3

[0063] like Figure 12As shown, an automatic feeding device for photovoltaic panel welding differs from Embodiment 1 in that, during testing, it was found that when the angle steel 6 is bent and formed at a small angle, it will interfere with the bottom of the contour groove 408 when it moves to the contour groove 408. Therefore, a groove 418 is processed at the bottom of the contour groove 408, with a rounded transition on the side wall of the groove 418. During the test, an attempt was made to embed a magnet 419 at the bottom of the groove 418 to attract the angle steel 6 downwards, making the angle steel 6 fit more tightly with the contour groove 408. However, the introduction of the magnet 419 increased the friction between the angle steel 6 and the contour groove 408, and the guiding effect of the contour groove 408 on the angle steel 6 deteriorated. Later, a magnet 419 was embedded at the end of the groove 418, which can attract the angle steel 6 downwards and avoid large friction between the angle steel 6 and the contour groove 408 during movement. The upper end face of the magnet 419 does not exceed the bottom surface of the groove 418.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic feeding device for photovoltaic panel welding, characterized in that, The machine includes a frame, on which a support platform is mounted, and on which a straight steel plate feeding module and an angle steel feeding module are mounted. The flat steel plate feeding module includes a hopper, a discharge device is provided at the lower end of the hopper, and a positioning device is provided at the end of the discharge device. Flat steel plates are stacked in the hopper, and the bottom flat steel plate is conveyed to the positioning device through the discharge device. The flat steel plate feeding module is set on the support platform through the base plate. The angle steel feeding module includes a hopper two, a discharge device two at the lower end of the hopper two, and a positioning device two at the end of the discharge device two. Angle steels are stacked in the hopper two, and the bottommost angle steel is conveyed to the positioning device two through the discharge device two. The angle steel feeding module is mounted on a support platform via a base plate two. The second hopper includes two upward-facing support frames, each with two adjustable positioning plates. The four adjustable positioning plates form a discharge channel. The second discharge device is located at the lower end of the discharge channel. The second discharge device includes an automatic positioning structure located at the lower end of the discharge channel. The automatic positioning structure includes two horizontal positioning posts, Positioning Post 1 and Positioning Post 2, which are parallel to each other. Angle steels within the discharge channel are stacked with their openings facing upwards. The lowest angle steel is supported by Positioning Post 1 and Positioning Post 2. A discharge port 2 is also provided on the support frame. A contoured stop that cooperates with the angle steel is provided at the discharge port 2, allowing the lowest angle steel to discharge through the underside of the contoured stop. The second discharge device also includes a movable push block located at the lower end of the second discharge channel. The movable push block is connected to a second movable drive assembly and a guide structure. The guide structure includes a linear slider, and the movable push block is connected to a linear slide rail via the linear slider. The movable push block is also connected to a pressure plate. Linear slide rails are installed on both sides of the cylinder, engaging with the ends of the pressure plate. The ends of the pressure plate are connected to the linear slide rails via the linear slider. The angle steel falls and is supported by the pressure plate, forming a straight line. When the angle steel deviates from its position, it can automatically tilt. The second positioning device includes a support base disposed at the end of the guide structure. A positioning seat is disposed on the support base, and a second positioning groove is disposed on the positioning seat to cooperate with the angle steel. The second positioning groove is a contour groove. Angle steel entering the contour groove fits into the contour groove under its own weight. The positioning seat has two integrally formed extension arms on the side facing the second hopper, forming a buffer groove between them. The movable push block can move into the buffer groove and stop after moving into it, pushing the angle steel into a predetermined position in the contour groove. The end of the angle steel extends into the buffer groove. By adjusting the stroke of the second cylinder, the movable push block stops 3-5mm away from the target position. Under the action of inertia, the angle steel continues to move forward and is then stopped and positioned by the end plate. A groove is machined at the bottom of the contouring groove, and the side wall of the groove is rounded. A magnet is embedded at the bottom end of the groove to make the angle steel fit more tightly with the contouring groove, which can attract the angle steel downwards. At the same time, it can avoid the large friction between the angle steel and the contouring groove during the movement. The upper end of the magnet does not extend beyond the bottom surface of the groove.

2. The automatic feeding equipment for photovoltaic panel welding according to claim 1, characterized in that, The hopper includes two upward-facing side rails, forming a flat steel plate discharge channel between them. The discharge device is located at the lower end of the discharge channel and includes a pressure-bearing slide rail. The lowermost flat steel plate is supported by the pressure-bearing slide rail. A movable push plate is slidably connected to the upper surface of the pressure-bearing slide rail. The movable push plate is connected to a movable drive assembly. The lower end of the side rail is provided with an insertion port that cooperates with the movable push plate. The lower end of the side rail is also provided with a discharge port opposite to the insertion port.

3. The automatic feeding equipment for photovoltaic panel welding according to claim 2, characterized in that, The positioning device includes a positioning groove located outside the discharge port. A positioning block that mates with a flat steel plate is provided on the side wall of the positioning groove. The pressure-bearing slide rail extends into the positioning groove.

4. The automatic feeding equipment for photovoltaic panel welding according to claim 2, characterized in that, A through groove is provided in the middle of the movable push plate to reduce the contact area between the movable push plate and the flat steel plate, while also enabling airflow and reducing the resistance between the movable push plate and the flat steel plate.

Images