A super-large-diameter sheet hoisting tool and processing equipment

Abstract

This invention relates to the field of lifting tool technology and provides a lifting tool and processing equipment for ultra-large diameter thin plates. The lifting tool includes a lifting fixture, a pressure plate, lifting claws, a centering mechanism, and a suction cup mechanism. The upper end of the lifting claw is rotatably connected to the middle of the lifting fixture, and the lower end of the lifting claw is provided with at least three jaws. A positioning shaft protrudes from the middle of the pressure plate, and a chuck extends radially from the positioning shaft. The chuck has grooves for the jaws to pass through. The lifting claws are used to lift the pressure plate by engaging with the chuck. At least three centering mechanisms are spaced apart and connected to the circumferential edge of the lifting fixture, and are used to coaxially center the workpiece with the lifting fixture. At least three suction cup mechanisms are spaced apart and connected to the lower end of the lifting fixture along the circumferential direction, and are used to connect the workpiece. This improves the processing efficiency and quality of ultra-large diameter thin plates.

Description

Technical Field

[0001] This invention relates to the field of lifting equipment technology, and more specifically, to a lifting tool and processing equipment for ultra-large diameter thin plates. Background Technology

[0002] With the continuous development of new energy sources, water electrolysis for hydrogen production has become a highly sought-after production method for green hydrogen preparation, enjoying great market popularity. Among these technologies, alkaline water hydrogen production technology is one of the most mature mainstream technologies for water electrolysis hydrogen production, and the manufacturing of electrode plates in the electrolyzer, a key piece of equipment, has become one of the core processes in the entire equipment manufacturing process. With the continuous upgrading of large-capacity electrolyzers, thin electrode plates are also trending towards ultra-large diameters. The electrode plates require hoisting operations throughout the manufacturing process, must be placed on a welding turntable during welding and pressed with pressure tools, and must be stacked layer by layer during assembly to achieve axial centering.

[0003] In the existing technology, during the processing of ultra-large diameter thin plates, such as electrolytic cell plates, lifting tools and pressing tools are generally used to lift and press the plates separately. This requires lifting equipment to lift the lifting tools and pressing tools twice, which is cumbersome. In addition, additional tooling is required to center the pressing tools and plates, and to ensure that the plates are coaxial. The plates are prone to being bumped during the adjustment process. The adjustment is inconvenient and requires multiple adjustments, which cannot meet the requirements of high-quality manufacturing. Summary of the Invention

[0004] The technical problem to be solved by this invention is: how to improve the processing efficiency and quality of ultra-large diameter thin plates.

[0005] This invention provides a lifting tool for ultra-large diameter thin plates, including a lifting device, a pressure plate, lifting claws, a centering mechanism, and a suction cup mechanism. The upper end of the lifting claw is rotatably connected to the middle of the lifting device, and the lower end of the lifting claw is provided with at least three jaws. A positioning shaft protrudes from the middle of the pressure plate, and a chuck extends radially from the positioning shaft. The chuck has grooves for the jaws to pass through. The lifting claws are used to lift the pressure plate by engaging with the chuck through the jaws. At least three centering mechanisms are spaced apart and connected to the circumferential edge of the lifting device. The at least three centering mechanisms are used to coaxially center the workpiece with the lifting device. At least three suction cup mechanisms are spaced apart and connected to the lower end of the lifting device along the circumferential direction. The suction cup mechanisms are used to connect the workpiece.

[0006] Optionally, the lifting device includes lifting beams and a circular plate and a circular ring arranged coaxially, with multiple lifting beams connected between the circular plate and the circular ring, the lifting claws rotatably connected to the middle of the circular plate, the suction cup mechanism connected to the lower end of the circular ring, and the centering mechanism connected to the edge of the circular ring.

[0007] Optionally, the centering mechanism includes a centering plate, a rotating shaft, and a centering rod. The rotating shaft and the centering rod are respectively connected to both ends of the centering plate and are staggered. A positioning plate extends radially outward from the edge of the ring. The rotating shaft is rotatably connected to the positioning plate. The centering rod is used to abut against the edge of the workpiece.

[0008] Optionally, the centering mechanism further includes a rotary plunger, and the positioning plate has a plurality of indexing holes around the rotating shaft. The rotary plunger passes through the centering plate and is used to connect with the indexing holes.

[0009] Optionally, the lifting claw includes a connecting shaft, at least three of the claws are connected to the lower periphery of the connecting shaft, the connecting shaft is rotatably connected to the middle of the circular plate, and the lower end of the connecting shaft is provided with a circular groove that matches the upper end of the positioning shaft.

[0010] Optionally, the ultra-large diameter thin plate hoisting tool further includes a turntable, which is coaxially connected to the connecting shaft and located at the upper end of the circular plate. A lever is provided on the turntable extending radially therefrom, and a connecting seat is provided on the ring. The end of the lever away from the turntable is used to connect with the connecting seat.

[0011] Optionally, the ultra-large diameter thin plate hoisting tool further includes a positioning nut, which is threaded to the upper end of the connecting shaft, and the turntable is located between the positioning nut and the circular plate.

[0012] Optionally, the suction cup mechanism includes an electro-permanent magnet suction cup, a connecting rod, a spring, and a limiting nut. The electro-permanent magnet suction cup is used to connect the workpiece. The connecting rod passes through the ring, with its lower end connected to the electro-permanent magnet suction cup and its upper end threadedly connected to the limiting nut. The spring is sleeved on the connecting rod, and both ends of the spring abut against the limiting nut and the ring, respectively.

[0013] Optionally, the pressure plate has a fan-shaped hollow structure.

[0014] Compared with the prior art, the ultra-large diameter thin plate hoisting tool provided by the present invention has the following technical effects:

[0015] The ultra-large diameter thin plate lifting tool provided by this invention can be applied to lifting operations during workpiece processing. The workpiece refers to, for example, an ultra-large diameter thin plate such as an electrolytic cell electrode plate. The tool features a pressure plate with a centrally protruding positioning shaft, and a chuck extending radially along the positioning shaft. A groove in the chuck allows the lifting claws to pass through. In use, the positioning shaft on the pressure plate is aligned with the lifting claws, and the lifting device is lowered so that the claws pass through the groove and are positioned at the lower end of the chuck. The upper end of the lifting claws is rotatably connected to the middle of the lifting device. Rotating the lifting claws causes them to misalign with the groove in the chuck. Thus, when the lifting device is raised, the lifting claws abut against the lower end of the chuck, lifting the pressure plate. Simultaneously, by providing at least three centering mechanisms along the circumference of the lifting device, the diameter of the workpiece to be lifted can be adapted by adjusting the positions of these three centering mechanisms using the principle of three-point centering. A centering mechanism abuts against the edge of the workpiece, coaxially centering the workpiece and the lifting device. This also ensures coaxial centering of the workpiece and the pressure plate. Furthermore, by arranging at least three suction cups at intervals along the circumference of the lifting device, the workpiece can be attracted, connected, and lifted. When transporting the workpiece to a processing position such as a turntable, the connection between the suction cups and the workpiece can be released, allowing the workpiece to be lowered. Then, by rotating the lifting jaws, the jaws align with the grooves in the chuck, allowing the jaws to pass through the grooves from the bottom of the chuck and lift the workpiece. This releases the connection between the lifting device and the pressure plate, ensuring the pressure plate is coaxially pressed onto the workpiece. This structural design allows for simultaneous and coaxial lifting of both the workpiece and the pressure plate using a single lifting device, saving time and reducing operational difficulty. It is convenient and quick to use, and the coaxial centering mechanism prevents damage to the workpiece, thereby improving the processing efficiency and quality of workpieces such as ultra-large diameter thin plates.

[0016] In addition, the present invention also provides a processing device, including the above-mentioned ultra-large diameter thin plate hoisting tool.

[0017] Compared with the prior art, the processing equipment provided by the present invention, by setting the above-mentioned ultra-large diameter thin plate hoisting tool, has roughly the same technical effect as the above-mentioned ultra-large diameter thin plate hoisting tool, and will not be described in detail here. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the lifting tool for ultra-large diameter thin plates according to an embodiment of the present invention. Figure 1 ;

[0019] Figure 2 This is a cross-sectional view of the lifting tool for ultra-large diameter thin plates according to an embodiment of the present invention;

[0020] Figure 3 This is a top view schematic diagram of the lifting tool for ultra-large diameter thin plates according to an embodiment of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the pressure plate according to an embodiment of the present invention;

[0022] Figure 5 This is a top view of the pressure plate in an embodiment of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the lifting claw according to an embodiment of the present invention;

[0024] Figure 7 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 8 for Figure 7 A cross-sectional structural diagram.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10-Lifting device, 11-Lifting beam, 111-Lifting lug, 12-Circular plate, 13-Circular ring, 131-Positioning plate, 132-Indexing hole, 20-Pressure plate, 21-Positioning shaft, 22-Chuck, 221-Groove, 23-Fan-shaped hollow structure, 30-Lifting claw, 31-Claw, 32-Connecting shaft, 321-Circular groove, 40-Centering mechanism, 41-Centering plate, 42-Rotating shaft, 43-Centering rod, 44-Rotating plunger, 50-Suction cup mechanism, 51-Electro-permanent magnet suction cup, 52-Connecting rod, 53-Spring, 54-Limit nut, 60-Turntable, 61-Pulley, 62-Connecting seat, 63-Insertion rod, 70-Positioning nut. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0030] In the description of this invention, the orientations or positional relationships indicated by terms such as "up," "down," "left," "right," "top," "bottom," "front," "back," "inner," and "outer" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this invention. They are not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention.

[0031] In the description of this invention, it should 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0033] To solve the above technical problems, such as Figures 1 to 6 As shown, this embodiment of the invention provides a lifting tool for ultra-large diameter thin plates, including a lifting device 10, a pressure plate 20, lifting claws 30, a centering mechanism 40, and a suction cup mechanism 50. The upper end of the lifting claw 30 is rotatably connected to the middle of the lifting device 10, and the lower end of the lifting claw 30 is provided with at least three chucks 31. The middle of the pressure plate 20 is provided with a positioning shaft 21, and a chuck 22 is provided along the radial direction of the positioning shaft 21. The chuck 22 has a groove 221 for the chucks 31 to pass through. The lifting claws 30 are used to lift the pressure plate 20 by cooperating with the chuck 22 through the chucks 31. At least three centering mechanisms 40 are spaced apart and connected to the circumferential edge of the lifting device 10. At least three centering mechanisms 40 are used to center the workpiece coaxially with the lifting device 10. At least three suction cup mechanisms 50 are spaced apart and connected to the lower end of the lifting device 10 along the circumferential direction of the lifting device 10. The suction cup mechanisms 50 are used to connect the workpiece.

[0034] It should be noted that the "ultra-large diameter thin plate" in machining generally refers to a circular plate with a diameter greater than or equal to 1900 mm and a thickness less than or equal to 10 mm, i.e., a thin plate that is relatively difficult to lift, clamp, or process. The "workpiece" refers to an ultra-large diameter thin plate, such as the electrode plate of the electrolytic cell in an alkaline water hydrogen production equipment, i.e., a thin circular plate with a large diameter. The lifting device 10, the pressure plate 20, and the workpiece are all circular structures. Furthermore, the lifting device 10, the pressure plate 20, the chuck 22 on the pressure plate 20, the lifting claw 30, and the workpiece are all rotating structures, i.e., coaxially connected or configured. The lifting device 10 is equipped with lifting lugs 111 for connecting to lifting equipment. Furthermore, the diameter of the pressure plate 20 is smaller than the diameter of the workpiece. After the lifting device 10 lifts the pressure plate 20, at least three suction cup mechanisms 50 are located on the outside of the pressure plate 20. At the same time, the lower end face of the suction cup mechanism 50 protrudes from the lower end face of the pressure plate 20, that is, the pressure plate 20 will not hinder the connection between the suction cup mechanism 50 and the workpiece. The suction cup mechanism 50 can be an electromagnetic adsorption connection mechanism, a pneumatic suction cup connection mechanism, etc., as long as the connection mechanism will not cause damage to the workpiece. No specific limitation is made here. Preferably, this ultra-large diameter thin plate lifting tool includes six suction cup mechanisms 50, which are evenly distributed and spaced at the lower end of the lifting device 10 along the circumference of the lifting device 10, making the connection more stable. In addition, the centering mechanism 40 can be an adjustable limiting member. The limiting member abuts against the edge of the workpiece. Based on the principle of three points determining the center of a circle, at least three centering mechanisms 40 are set to coaxially center with the workpiece. During operation, two centering mechanisms 40 can be pre-positioned. After the two centering mechanisms 40 abut against the edge of the workpiece, the third centering mechanism 40 can be adjusted to the pre-set position, which makes the centering operation more convenient.

[0035] Specifically, the lifting claw 30 is provided with three jaws 31. The lower end of the jaw 31 has an inwardly bent portion. The bent portion can pass through the groove 221 of the chuck 22 of the pressure plate 20. At the same time, after the bent portion passes through the groove 221, it rotates the entire lifting claw 30. After the bent portion is misaligned with the groove 221, it abuts against the lower end face of the chuck 22. When the lifting device 10 is lifted, the pressure plate 20 is lifted. When lifting the pressure plate 20, the positioning shaft 21 of the pressure plate 20 can be aligned with the middle of the three jaws 31. The groove 221 of the chuck 22 is then aligned with the jaws 31, which makes it easier to achieve coaxial centering and alignment of the whole.

[0036] In this embodiment, the ultra-large diameter thin plate lifting tool provided can be applied to lifting operations during workpiece processing. The workpiece refers to, for example, an ultra-large diameter thin plate of an electrolytic cell electrode plate. A pressure plate 20 with a centrally protruding positioning shaft 21 is provided, and a chuck 22 extends radially along the positioning shaft 21. A groove 221 on the chuck 22 allows the jaws 31 of the lifting claw 30 to pass through. In use, the positioning shaft 21 on the pressure plate 20 can be aligned with the lifting claw 30, and the lowering lifting device 10 allows the jaws 31 to pass through the groove. 221 is located at the lower end of the chuck 22, and the upper end of the lifting claw 30 is rotatably connected to the middle of the lifting device 10. At this time, by rotating the lifting claw 30, the pawl 31 of the lifting claw 30 will be misaligned with the groove 221 of the chuck 22. Thus, when the lifting device 10 is raised, the lifting claw 30 will abut against the lower end of the chuck 22 through the pawl 31, lifting the pressure plate 20. At the same time, by setting at least three centering mechanisms 40 on the circumferential edge of the lifting device 10, the pressure plate 20 can be adapted by adjusting the position of at least three centering mechanisms 40 according to the principle of three-point centering. The diameter of the workpiece to be lifted is determined, and the workpiece is coaxially centered with the lifting device 10 by at least three centering mechanisms 40 abutting against the edge of the workpiece. This also ensures coaxial centering of the workpiece with the pressure plate 20. Furthermore, by arranging at least three suction cup mechanisms 50 at intervals along the circumference of the lifting device 10, the workpiece can be attracted, connected, and lifted. When transporting the workpiece to a processing position such as a turntable, the connection between the suction cup mechanisms 50 and the workpiece can be released to lower the workpiece. Then, the lifting claw 30 can be rotated to engage the grooves of the chuck 22 with the jaw 31. After alignment at 221, the jaw 31 can pass through the groove 221 from the lower end of the chuck 22 and lift it up, thus releasing the connection between the lifting device 10 and the pressure plate 20, so that the pressure plate 20 is coaxially pressed onto the workpiece. With the above structural arrangement, the workpiece and the pressure plate 20 can be lifted simultaneously and coaxially by one lifting device 10, saving operation time and reducing operation difficulty. It is convenient and quick to use. Moreover, the centering mechanism 40 coaxially centers the workpiece without damaging it, thereby improving the processing efficiency and quality of workpieces such as ultra-large diameter thin plates.

[0037] Optionally, such as Figures 1 to 3 As shown, the lifting device 10 includes a lifting beam 11 and a circular plate 12 and a circular ring 13 arranged coaxially. A plurality of lifting beams 11 are connected between the circular plate 12 and the circular ring 13. The lifting claw 30 is rotatably connected to the middle part of the circular plate 12. The suction cup mechanism 50 is connected to the lower end of the circular ring 13. The centering mechanism 40 is connected to the edge of the circular ring 13.

[0038] Specifically, multiple lifting beams 11 are evenly spaced and connected between the circular plate 12 and the circular ring 13. The center of the circular plate 12 has a through hole that is rotatably connected to the lifting claw 30. Rotational connection can be achieved through bearings, etc. Lifting lugs 111 are set on the lifting beams 11, and lifting lugs 111 can be set on three evenly spaced lifting beams 11 respectively, making the lifting more stable.

[0039] In this embodiment, by setting the lifting device 10 as a structure in which multiple lifting beams 11 are connected between a coaxially arranged circular plate 12 and a circular ring 13, the overall structural strength of the lifting device 10 is ensured while the overall weight of the lifting device 10 is reduced. The circular plate 12 provides an installation base for the lifting claw 30, and the circular ring 13 provides a stable and reliable installation base for the suction cup mechanism 50 and the centering mechanism 40. The structure is reasonable, stable and firm.

[0040] Optionally, such as Figure 1 , Figure 7 and Figure 8 As shown, the centering mechanism 40 includes a centering plate 41, a rotating shaft 42, and a centering rod 43. The rotating shaft 42 and the centering rod 43 are respectively connected to the two ends of the centering plate 41 and are staggered. The edge of the ring 13 extends radially outward with a positioning plate 131. The rotating shaft 42 is rotatably connected to the positioning plate 131. The centering rod 43 is used to abut against the edge of the workpiece.

[0041] Specifically, the positioning plate 131 has a through hole that matches the rotating shaft 42. The upper end of the rotating shaft 42 is axially limited by a nut connection. At the same time, the centering plate 41 abuts against the lower end face of the positioning plate 131. The rotational friction between the centering plate 41 and the positioning plate 131, i.e. the ease of rotation, can be adjusted by adjusting the tightness of the nut connection. The centering rod 43 can be positioned by the friction between the two to perform coaxial centering operation of the workpiece.

[0042] In this embodiment, the centering mechanism 40 is configured such that the two ends of the centering plate 41 are respectively connected to the rotating shaft 42 and the centering rod 43. The rotating shaft 42 and the centering rod 43 are staggered, and a positioning plate 131 is provided along the radial extension of the edge of the ring 13. The rotating shaft 42 is rotatably connected to the positioning plate 131. When the centering mechanism 40 is pre-set to a position to perform coaxial centering operation on the workpiece, the centering plate 41 can be rotated around the rotating shaft 42. In this way, the distance between the centering rod 43 and the axis of the lifting device 10 changes, that is, the diameter of the positioning workpiece is adjusted. After being adjusted to the set position, when lifting the workpiece, the centering rod 43 can be abutted against the edge of the workpiece. When all three centering rods 43 abut against the edge of the workpiece at the same time, coaxial centering is completed. Then the suction cup mechanism 50 is connected to the workpiece. It is convenient, quick and easy to operate.

[0043] Optionally, such as Figure 1 , Figure 3 , Figure 7 and Figure 8 As shown, the centering mechanism 40 also includes a rotating plunger 44. The positioning plate 131 has a plurality of indexing holes 132 around the rotating shaft 42. The rotating plunger 44 passes through the centering plate 41 and is used to connect with the indexing holes 132.

[0044] Specifically, a compression spring is fitted onto the rotating plunger 44, so that after rotating the rotating plunger 44 or pulling its lower end, it can be reset by the compression spring, making it easier to operate. In addition, multiple indexing holes 132 are evenly distributed and spaced along the circumference of the rotating shaft 42 on the positioning plate 131, making the adjustment more precise and reliable.

[0045] In this embodiment, by setting a rotating plunger 44 and opening multiple indexing holes 132 around the rotating shaft 42 on the positioning plate 131, when performing coaxial centering operations on workpieces of different diameters, the rotating plunger 44 can be connected to the indexing holes 132 at different positions after passing through the centering plate 41. In other words, the centering rod 43 can be positioned at different positions to adapt to workpieces of different diameters. The operation is convenient and the positioning is accurate and reliable.

[0046] Optionally, such as Figures 1 to 6 As shown, the lifting claw 30 includes a connecting shaft 32, and at least three claws 31 are connected to the lower periphery of the connecting shaft 32. The connecting shaft 32 is rotatably connected to the middle of the circular plate 12, and the lower end of the connecting shaft 32 is provided with a circular groove 321 that matches the upper end of the positioning shaft 21.

[0047] Specifically, the connecting shaft 32 can be rotatably connected to the circular plate 12 via a thrust roller bearing, which can withstand axial force without hindering its rotation.

[0048] In this embodiment, by setting the lifting claw 30 to a structure in which the lower end of the connecting shaft 32 is connected to the chuck 31, it is convenient to rotate the lifting claw 30 and the circular plate 12. Furthermore, by opening a circular groove 321 at the lower end of the connecting shaft 32 that matches the upper end of the positioning shaft 21, it is more convenient to coaxially center and align the pressure plate 20 and the lifting claw 30, which means it is convenient to accurately align the pressure plate 20 with the lifting device 10 and the workpiece.

[0049] Optionally, such as Figures 1 to 3 As shown, the ultra-large diameter thin plate hoisting tool also includes a turntable 60, which is coaxially connected to the connecting shaft 32 and is located at the upper end of the circular plate 12. A lever 61 is provided on the turntable 60 extending radially therefrom, and a connecting seat 62 is provided on the ring 13. The end of the lever 61 away from the turntable 60 is used to connect with the connecting seat 62.

[0050] Specifically, the ultra-large diameter thin plate lifting tool also includes a plug rod 63. One end of the lever 61 is connected to the circumferential edge of the turntable 60, and the other end is provided with a through hole or collar structure. The plug rod 63 can pass through the through hole or collar and connect to the connecting seat 62, thereby fixing the position of the lever 61. More specifically, the plug rod 63 can be threadedly connected to the connecting seat 62. In addition, two connecting seats 62 are provided on the ring 13. The interval between the two connecting seats 62, that is, the angle formed by the line connecting the two connecting seats 62 and the axis of the ring 13, is adapted to the rotation angle of the lifting claw 30. That is to say, after rotating the turntable 60 by a certain angle through the lever 61, the claw 31 abuts against the lower end face of the chuck 22 to form a lifting structure. At the same time, the end of the lever 61 can be connected to another connecting seat 62 through the plug rod 63, so that the lever 61 can be stably connected and fixed whether it is lifting the pressure plate 20 or not, making the structure more stable and reasonable.

[0051] In this embodiment, by setting a turntable 60 and connecting it to the connecting shaft 32, the lifting claw 30 can be rotated by rotating the turntable 60. By setting a lever 61 extending radially along the turntable 60, the turntable 60 can be rotated by moving the lever 61, which is more convenient to operate. At the same time, by setting a connecting seat 62 on the ring 13 to connect and fix the lever 61, the overall structure is more stable and reliable.

[0052] Optionally, such as Figure 1 and Figure 2 As shown, the ultra-large diameter thin plate hoisting tool also includes a positioning nut 70, which is threaded to the upper end of the connecting shaft 32, and the turntable 60 is located between the positioning nut 70 and the circular plate 12.

[0053] Specifically, the ultra-large diameter thin plate hoisting tool also includes a bushing, which is interference-fitted with the connecting shaft 32. The turntable 60 is connected to the bushing by an internal hexagon screw, thereby forming a stable connection between the turntable 60 and the connecting shaft 32. Meanwhile, the upper end of the connecting shaft 32 is provided with an external thread, which is adapted to the positioning nut 70 and threadedly connected.

[0054] In this embodiment, by setting a positioning nut 70 and threading it to the upper end of the connecting shaft 32, and setting the turntable 60 between the positioning nut 70 and the circular plate 12, the overall structure is more stable and reliable, the lifting claw 30 can withstand greater axial force, the structure is more robust, and the axial direction of the turntable 60 is limited, making the whole structure more stable and reliable.

[0055] Optionally, such as Figures 1 to 3As shown, the suction cup mechanism 50 includes an electro-permanent magnet suction cup 51, a connecting rod 52, a spring 53, and a limiting nut 54. The electro-permanent magnet suction cup 51 is used to connect the workpiece. The connecting rod 52 passes through the ring 13. The lower end of the connecting rod 52 is connected to the electro-permanent magnet suction cup 51, and the upper end of the connecting rod 52 is threadedly connected to the limiting nut 54. The spring 53 is sleeved on the connecting rod 52, and the two ends of the spring 53 abut against the limiting nut 54 and the ring 13, respectively.

[0056] Specifically, the electro-permanent magnet chuck 51 has magnetic force after being energized, and can magnetically connect to the workpiece. In addition, each chuck mechanism 50 includes two connecting rods 52, making the connection of the electro-permanent magnet chuck 51 more stable and reliable.

[0057] In this embodiment, by setting the suction cup structure 50 to connect the electro-permanent magnet suction cup 51 to the ring 13 via the connecting rod 52 and the limiting nut 54, on the one hand, the electro-permanent magnet suction cup 51 can magnetically connect to the workpiece after being energized, which is convenient for operation. On the other hand, by attaching a spring 53 to the connecting rod 52, and having its two ends abut against the limiting nut 54 and the ring 13 respectively, the electro-permanent magnet suction cup 51 can provide a certain buffer after contacting the workpiece surface during the process of the lifting device 10 falling as a whole and connecting with the workpiece, preventing damage such as bumps and knocks on the workpiece surface, and further improving the quality of operation.

[0058] Optionally, such as Figures 1 to 5 As shown, the pressure plate 20 has a fan-shaped hollow structure 23.

[0059] Specifically, the fan-shaped hollow structure 23 has fan-shaped holes, and four holes are symmetrically arranged in pairs, which makes the structure stable and reduces the weight.

[0060] In this embodiment, by providing a fan-shaped hollow structure 23 on the pressure plate 20, the weight of the pressure plate 20 and the overall lifting device 10 is reduced. At the same time, the plate structure at the edge of the pressure plate 20 and the middle position of the pressure plate 20, as well as the plate structure between the fan-shaped hollow structure 23, can stably and reliably press and position the workpiece. The overall structure is stable and reliable, and the weight is reduced, making it easy to lift.

[0061] In addition, another embodiment of the present invention provides a processing device, including the above-mentioned ultra-large diameter thin plate hoisting tool.

[0062] In this embodiment, the processing equipment provided in this embodiment, by setting the above-mentioned ultra-large diameter thin plate hoisting tool, has roughly the same technical effect as the above-mentioned ultra-large diameter thin plate hoisting tool, and will not be described again here.

[0063] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. An ultra-large-diameter sheet hoisting tool characterized by comprising: The device includes a lifting device (10), a pressure plate (20), a lifting claw (30), a centering mechanism (40), and a suction cup mechanism (50). The upper end of the lifting claw (30) is rotatably connected to the middle part of the lifting device (10). The lower end of the lifting claw (30) is provided with at least three jaws (31). A positioning shaft (21) protrudes from the middle part of the pressure plate (20). A chuck (22) extends radially from the positioning shaft (21). The chuck (22) has a groove (221) for the jaws (31) to pass through. The lifting claw (30) is used to lift the pressure plate (20) by cooperating with the chuck (22) through the jaw (31). At least three centering mechanisms (40) are connected at intervals to the circumferential edge of the lifting device (10). At least three centering mechanisms (40) are used to center the workpiece coaxially with the lifting device (10). At least three suction cup mechanisms (50) are connected at intervals along the circumferential direction of the lifting device (10) to the lower end of the lifting device (10). The suction cup mechanisms (50) are used to connect the workpiece.

2. The ultra-large diameter sheet handling tool of claim 1, wherein, The lifting device (10) includes a lifting beam (11) and a circular plate (12) and a circular ring (13) arranged coaxially. Multiple lifting beams (11) are connected between the circular plate (12) and the circular ring (13). The lifting claw (30) is rotatably connected to the middle part of the circular plate (12). The suction cup mechanism (50) is connected to the lower end of the circular ring (13). The centering mechanism (40) is connected to the edge of the circular ring (13).

3. The ultra-large diameter sheet handling tool of claim 2, wherein, The centering mechanism (40) includes a centering plate (41), a rotating shaft (42), and a centering rod (43). The rotating shaft (42) and the centering rod (43) are respectively connected to the two ends of the centering plate (41) and are staggered. The edge of the ring (13) extends radially outward with a positioning plate (131). The rotating shaft (42) is rotatably connected to the positioning plate (131). The centering rod (43) is used to abut against the edge of the workpiece.

4. The ultra-large-diameter sheet handling tool of claim 3, wherein, The centering mechanism (40) further includes a rotating plunger (44). The positioning plate (131) has a plurality of indexing holes (132) around the rotating shaft (42). The rotating plunger (44) passes through the centering plate (41) and is used to connect with the indexing holes (132).

5. The lifting tool for ultra-large diameter thin plates according to claim 2, characterized in that, The lifting claw (30) includes a connecting shaft (32), and at least three claws (31) are connected to the lower periphery of the connecting shaft (32). The connecting shaft (32) is rotatably connected to the middle of the circular plate (12), and the lower end of the connecting shaft (32) is provided with a circular groove (321) that is adapted to the upper end of the positioning shaft (21).

6. The ultra-large-diameter sheet handling tool of claim 5, wherein, The ultra-large diameter thin plate hoisting tool also includes a turntable (60), which is coaxially connected to the connecting shaft (32) and is located at the upper end of the circular plate (12). A lever (61) is provided on the turntable (60) extending radially therefrom, and a connecting seat (62) is provided on the ring (13). The end of the lever (61) away from the turntable (60) is used to connect with the connecting seat (62).

7. The ultra-large-diameter sheet handling tool of claim 6, wherein, The ultra-large diameter thin plate hoisting tool also includes a positioning nut (70), which is threaded to the upper end of the connecting shaft (32), and the turntable (60) is located between the positioning nut (70) and the circular plate (12).

8. The ultra-large-diameter sheet handling tool of claim 2, wherein, The suction cup mechanism (50) includes an electro-permanent magnet suction cup (51), a connecting rod (52), a spring (53), and a limiting nut (54). The electro-permanent magnet suction cup (51) is used to connect the workpiece. The connecting rod (52) passes through the ring (13). The lower end of the connecting rod (52) is connected to the electro-permanent magnet suction cup (51), and the upper end of the connecting rod (52) is threadedly connected to the limiting nut (54). The spring (53) is sleeved on the connecting rod (52), and the two ends of the spring (53) abut against the limiting nut (54) and the ring (13) respectively.

9. The ultra-large-diameter sheet handling tool of claim 1, wherein, The pressure plate (20) has a fan-shaped hollow structure (23).

10. A processing apparatus characterized by comprising: Includes the lifting tool for ultra-large diameter thin plates as described in any one of claims 1 to 9.

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