A large tonnage component overturning and righting device

Abstract

This invention discloses a tilting and straightening device for large-tonnage components, relating to the field of component tilting technology. The device includes a frame, a first L-shaped hinged frame, a second L-shaped hinged frame, and a hydraulic cylinder. The short arms of the two hinged frames are nested and interlocked on the same horizontal plane. The device has a gravity-pneumatic linkage support system on the inner surfaces of the second short arm and the second long arm, and a mechanical locking mechanism between the two arms. The gravity-pneumatic linkage support system includes at least one first elastic pad, at least one second elastic pad, and a pneumatic circuit assembly connecting the two. The first elastic pad is vertically movable and protrudes from the surface of the second short arm, while the second elastic pad is vertically movable and flush with the surface of the second long arm in its natural state. When the component is pressed against the second short arm, the first elastic pad retracts, and gas pushes the second elastic pad to protrude and fill the gap between the side of the component and the long arm, preventing the component from sliding and colliding during tilting.

Description

Technical Field

[0001] This invention relates to the field of component flipping technology, specifically to a flipping and righting device for large-tonnage components. Background Technology

[0002] Existing large-tonnage component tilting and straightening devices often employ double L-shaped hinged frames working together to achieve a 180° tilt. The component is first placed on the long arm of one hinged frame, and then tilted 90° by hydraulic drive. It is then supported by the short arm of the other hinged frame and tilted another 90° to complete the overall tilt.

[0003] Because the short arms of the two hinged frames are designed with an interlocking nested structure, a gap inevitably exists between the side of the component and the inner surface of the long arm during the transfer of the component from the short arm to the long arm. As the hinged frames continue to rotate, the component, under the influence of gravity, will suddenly slide towards the long arm and collide with it, generating significant impact and noise. This can easily lead to surface damage or positional displacement of the component, affecting the positioning accuracy of subsequent processes. Therefore, this invention proposes a rotating and straightening device for large-tonnage components. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a tilting and straightening device for large-tonnage components, which prevents the components from suddenly slipping and colliding with the long arm due to gravity during subsequent tilting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A tilting and straightening device for a large-tonnage component includes a frame, a first L-shaped hinge frame, a second L-shaped hinge frame, a first hydraulic cylinder, and a second hydraulic cylinder. The first and second L-shaped hinge frames are respectively hinged to the frame, with the hinge point being the intersection of the long and short L-shaped arms. The first L-shaped hinge frame is integrally formed from the first long arm and the first short arm at the intersection, and the second L-shaped hinge frame is integrally formed from the second long arm and the second short arm at the intersection. The first and second short arms are interlocked and nested, and are on the same horizontal plane in the working position. The device also includes a gravity-pneumatic linkage support system disposed on the inner surface of the second short arm and the inner surface of the second long arm, and a mechanism located between the second short arm and the second long arm. The mechanical locking mechanism and gravity-pneumatic linkage support system include: at least one first elastic pad, which is vertically movably mounted on the inner surface of the second short arm, with a first telescopic cylinder connected below the first elastic pad, the first telescopic cylinder being fixed to the second short arm, and a first spring provided inside the first telescopic cylinder, the first elastic pad protruding from the surface of the second short arm in its natural state; at least one second elastic pad, which is vertically movably mounted on the inner surface of the second long arm, with a second telescopic cylinder connected below the second elastic pad, and a second spring provided inside the second telescopic cylinder, the second elastic pad being flush with the surface of the second long arm in its natural state; and an air passage assembly connecting the first telescopic cylinder and the second telescopic cylinder.

[0006] Preferably, the first long arm is used for initial placement of the component; the second long arm is initially vertical, and the second short arm is initially horizontal; the first hydraulic cylinder is used to drive the first L-shaped articulated frame to rotate 90 degrees to make the first short arm horizontal, and the second hydraulic cylinder is used to drive the second L-shaped articulated frame to rotate 90 degrees to make the second long arm horizontal.

[0007] Preferably, when the component is placed on the second short arm, the component squeezes the first elastic pad to retract, and the gas in the first telescopic cylinder enters the second telescopic cylinder through the air passage assembly, pushing the second elastic pad to protrude from the surface of the second long arm, thereby forming elastic support for the side of the component.

[0008] Preferably, the mechanical locking mechanism includes a connecting plate, a support rod, a fixed rod, at least one limiting rod, a torsion spring, and an unlocking assembly; the connecting plate is fixedly connected to the outside of the first elastic pad; the upper end of the support rod is fixed to the connecting plate, and the lower end of the support rod is provided with a wedge-shaped boss; the fixed rod is fixedly installed on the second L-shaped hinge frame and parallel to the second short arm; one end of the limiting rod is sleeved on the fixed rod and rotatably engaged with the fixed rod, and the other end of the limiting rod is provided with a wedge-shaped opening that engages with the wedge-shaped boss; the torsion spring is sleeved on the fixed rod, and its two ends are respectively fixed to the limiting rod and the fixed plate fixed on the fixed rod, for providing a torsional restoring force to reset the limiting rod; the unlocking assembly includes a straight rod arranged parallel to the outside of the fixed rod, and the straight rod is fixedly connected to the bottom end of each limiting rod through a connecting block.

[0009] Preferably, the inclined surface of the wedge-shaped boss faces downward, forming a hook-like structure between the support rod and the wedge-shaped boss; the inclined surface angle of the wedge-shaped block matches the inclined surface angle of the wedge-shaped boss, and the bottom of the wedge-shaped boss has a rounded transition; when the first elastic pad is pushed downward by the gravity of the component, the connecting plate drives the support rod to move downward, and the wedge-shaped boss squeezes the wedge-shaped block of the limiting rod, causing the limiting rod to swing until the wedge-shaped boss passes over the wedge-shaped block and is embedded in it. Under the action of the torsion spring, the limiting rod swings back to its original position, locking the wedge-shaped boss; when unlocking is required, the swing rod drives all the limiting rods to swing, causing the wedge-shaped boss to disengage from the wedge-shaped block.

[0010] Preferably, the second spring is a reset spring, whose elastic force is less than the force of the gas pushing the second elastic pad to protrude, and is used to assist the second elastic pad in resetting after unlocking.

[0011] Preferably, the working surfaces of the first elastic pad and the second elastic pad are provided with a soft wear-resistant material layer, which is a polyurethane layer.

[0012] Preferably, the cross-sectional area of ​​all first telescopic cylinders is larger than the cross-sectional area of ​​all second telescopic cylinders, so as to realize stroke amplification by utilizing the principle of volume transfer.

[0013] Preferably, in the mechanical locking mechanism, the fixed rod is provided with multiple limit rods at intervals, each limit rod corresponds to a support rod, and the straight rod is fixedly connected to the bottom end of each limit rod through multiple connecting blocks to achieve synchronous unlocking.

[0014] Preferably, the air path assembly includes an air path pipe and a loop pipe. The loop pipe is fixedly installed inside the second long arm. The air path pipe connects the first telescopic cylinder and the loop pipe. Multiple second telescopic cylinders are provided on the side of the loop pipe facing the surface of the second long arm. The bottom of the second telescopic cylinder is connected to the inside of the loop pipe. The end of the second elastic pad away from the second telescopic cylinder is hemispherical.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention employs a gravity-pneumatic linkage support system. When a heavy component is placed on the second short arm, its own weight compresses the first elastic pad, causing it to retract downwards. Gas from the first telescopic cylinder is then pushed into the second telescopic cylinder via a pneumatic assembly, further propelling the second elastic pad from the inner surface of the second long arm. This process automatically fills the gap between the component's side and the inner surface of the second long arm, providing lateral elastic support to the component before it is tilted. As the articulated frame continues to tilt, the component will not suddenly slip due to gravity and violently collide with the long arm, effectively preventing surface damage and positional displacement, and significantly improving the safety of the tilting process. This invention utilizes the component's own weight as the triggering force, achieving the coordinated extension and retraction of the elastic pad without the need for additional sensors or electrical control. During the component's transfer from the second short arm to the second long arm, the protruding second elastic pad consistently applies a flexible elastic constraint to the component's sides, eliminating the severe impacts and sharp noises caused by gaps in traditional devices. This not only improves the operating environment and reduces auditory discomfort for operators, but also significantly reduces component scratches and deformation caused by collisions, making the overturning and righting of heavy-tonnage components more stable and reliable. This invention also incorporates a mechanical locking mechanism. While the component presses against the first elastic pad, causing it to retract, the connecting plate moves the support rod downwards. The wedge-shaped boss automatically engages with the wedge-shaped opening of the limiting rod and locks under the action of a torsion spring. This prevents the second elastic pad from unexpectedly retracting due to air pressure fluctuations or vibrations during the flipping process, ensuring continuous and stable support for the component. After flipping to the correct position, the locking of all limiting rods can be simultaneously released by swinging the straight rod of the unlocking component, allowing the second elastic pad to retract smoothly under the action of the return spring, facilitating the next operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. 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 effort.

[0017] Figure 1 This is a schematic diagram of the overall structure and operating state of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention in an unloaded state; Figure 3 This is a schematic diagram of the second L-shaped hinge frame structure of the present invention; Figure 4 This is a schematic diagram of another state of the second L-shaped hinge frame of the present invention; Figure 5 This is a cross-sectional view of the gas pipeline connection state structure of the present invention; Figure 6 This is a cross-sectional view of the second telescopic cylinder section of the present invention; Figure 7 This is a schematic diagram of the fixing rod part of the present invention; Figure 8 This is a schematic diagram of the support rod and limiting rod structure of the present invention.

[0018] Drawing number descriptions: 1. Frame; 2. First L-shaped articulated frame; 3. Second L-shaped articulated frame; 4. First hydraulic cylinder; 5. Second hydraulic cylinder; 6. First long arm; 7. First short arm; 8. Second long arm; 9. Second short arm; 10. Gravity-pneumatic linkage support system; 11. Mechanical locking mechanism; 12. First elastic pad; 13. First telescopic cylinder; 14. First spring; 15. Second elastic pad; 16. Second telescopic cylinder; 17. Second spring; 18. Air circuit assembly; 19. Connecting plate; 20. Support rod; 21. Fixing rod; 22. Limiting rod; 23. Torsion spring; 24. Unlocking assembly; 25. Wedge-shaped boss; 26. Wedge-shaped port; 27. Fixing plate; 28. Straight rod; 29. ​​Connecting block; 30. Soft wear-resistant material layer; 31. Air circuit pipe; 32. U-shaped pipe. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0021] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplifications for the convenience of describing this invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0022] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0023] Example 1:

[0024] Please see Figure 1-8 In this solution, a tilting and straightening device for large-tonnage components includes a frame 1, a first L-shaped hinge frame 2, a second L-shaped hinge frame 3, a first hydraulic cylinder 4, and a second hydraulic cylinder 5. The first L-shaped hinge frame 2 and the second L-shaped hinge frame 3 are respectively hinged to the frame 1, with the hinge point being the intersection of the long and short arms of the L-shape. The first L-shaped hinge frame 2 is integrally formed by the first long arm 6 and the first short arm 7 at their intersection, and the second L-shaped hinge frame 3 is integrally formed by the second long arm 8 and the second short arm 9 at their intersection. The first short arm 7 and the second short arm 9 are interlocked and nested, and are on the same horizontal plane in the working position. To eliminate slippage and collision caused by gaps during component tilting, the device is also equipped with a gravity pneumatic linkage support system 10 and a mechanical locking mechanism 11, wherein the gravity pneumatic linkage support system 10 is installed on the inner surface of the second short arm 9 and the inner surface of the second long arm 8.

[0025] It should be noted that the first long arm 6 is used for initial placement of the component, the second long arm 8 is initially vertical, and the second short arm 9 is initially horizontal. The first hydraulic cylinder 4 is used to drive the first L-shaped articulated frame 2 to rotate 90 degrees to make the first short arm 7 horizontal, and the second hydraulic cylinder 5 is used to drive the second L-shaped articulated frame 3 to rotate 90 degrees to make the second long arm 8 horizontal. In actual operation, the heavy-tonnage component is first placed on the first long arm 6, the first hydraulic cylinder 4 pushes the first L-shaped articulated frame 2 to rotate 90 degrees, and the component is transferred to the second short arm 9; then the second hydraulic cylinder 5 pushes the second L-shaped articulated frame 3 to rotate 90 degrees, and the component finally falls onto the second long arm 8 to complete a 180° rotation and straighten.

[0026] In this design, the gravity-pneumatic linkage support system 10 includes at least one first elastic pad 12, at least one second elastic pad 15, and an air passage assembly 18 connecting the two. The first elastic pad 12 is vertically and movably mounted on the inner surface of the second short arm 9, with a first telescopic cylinder 13 connected below it. The first telescopic cylinder 13 is fixed to the second short arm 9 and contains a first spring 14. In its natural state, the first elastic pad 12 protrudes from the surface of the second short arm 9. The second elastic pad 15 is vertically and movably mounted on the inner surface of the second long arm 8, with a second telescopic cylinder 16 connected below it. The second telescopic cylinder 16 contains a second spring 17. In its natural state, the second elastic pad 15 is flush with the surface of the second long arm 8. The air passage assembly 18 connects the first telescopic cylinder 13 and the second telescopic cylinder 16.

[0027] It should be noted that when a heavy component is placed on the second short arm 9, the component's own weight will compress the first elastic pad 12, causing it to retract downwards against the elastic force of the first spring 14. The gas in the first telescopic cylinder 13 enters the second telescopic cylinder 16 through the air passage assembly 18, pushing the second elastic pad 15 to protrude from the surface of the second long arm 8 against the elastic force of the second spring 17. At this time, the protruding second elastic pad 15 precisely fills the gap between the side of the component and the inner surface of the second long arm 8, providing elastic support to the side of the component. When the second L-shaped hinge frame 3 continues to rotate, the component will not suddenly slip due to gravity and violently collide with the long arm, thus effectively protecting the surface of the component.

[0028] In this design, the mechanical locking mechanism 11 includes a connecting plate 19, a support rod 20, a fixing rod 21, at least one limiting rod 22, a torsion spring 23, and an unlocking assembly 24. The connecting plate 19 is fixedly connected to the outside of the first elastic pad 12. The upper end of the support rod 20 is fixed to the connecting plate 19, and the lower end of the support rod 20 is provided with a wedge-shaped boss 25. The fixing rod 21 is fixedly installed on the second L-shaped hinge frame 3 and parallel to the second short arm 9. One end of the limiting rod 22 is sleeved on the fixing rod 21 and rotates with the fixing rod 21, and the other end of the limiting rod 22 is provided with a wedge-shaped block 26 that cooperates with the wedge-shaped boss 25. The torsion spring 23 is sleeved on the fixing rod 21, and its two ends are fixed to the limiting rod 22 and the fixing plate 27 fixed on the fixing rod 21, respectively, to provide a torsional restoring force to reset the limiting rod 22. The unlocking component 24 includes a straight rod 28 arranged parallel to the outside of the fixed rod 21. The straight rod 28 is fixedly connected to the bottom end of each limiting rod 22 via a connecting block 29.

[0029] It should be noted that the inclined surface of the wedge-shaped boss 25 faces downward, forming a hook-like structure between the support rod 20 and the wedge-shaped boss 25. The inclined surface angle of the wedge-shaped block 26 matches the inclined surface angle of the wedge-shaped boss 25, and the bottom of the wedge-shaped boss 25 has a rounded transition. When the first elastic pad 12 is pushed downward by the gravity of the component, the connecting plate 19 drives the support rod 20 to move downward. The wedge-shaped boss 25 presses against the wedge-shaped block 26 of the limiting rod 22, causing the limiting rod 22 to swing until the wedge-shaped boss 25 passes over the wedge-shaped block 26 and embeds into it. Under the action of the torsion spring 23, the limiting rod 22 swings back to its original position, locking the wedge-shaped boss 25. At this time, the first elastic pad 12 is held in the pressed state, and the second elastic pad 15 continues to protrude from the supporting component. When unlocking is required, the swing rod 28 drives all the limit rods 22 to swing, causing the wedge-shaped boss 25 to disengage from the wedge-shaped block 26, and the first spring 14 and the second spring 17 can reset each elastic pad.

[0030] As a first specific embodiment, the above structure can already achieve basic flipping and righting functions and anti-collision functions. Based on this, the second spring 17 is preferably a return spring, whose elastic force is less than the force of the gas pushing the second elastic pad 15 outwards, used to assist the second elastic pad 15 in smoothly retracting after unlocking. The working surfaces of the first elastic pad 12 and the second elastic pad 15 are provided with a soft wear-resistant material layer 30, which is a polyurethane layer, to reduce frictional damage to the component surface. The air circuit assembly 18 includes an air circuit pipe 31 and a loop pipe 32. The loop pipe 32 is fixedly installed inside the second long arm 8. The air circuit pipe 31 connects the first telescopic cylinder 13 and the loop pipe 32. Multiple second telescopic cylinders 16 are provided on the side of the loop pipe 32 facing the surface of the second long arm 8, and the bottom of the second telescopic cylinder 16 communicates with the interior of the loop pipe 32. The end of the second elastic pad 15 away from the second telescopic cylinder 16 is hemispherical, which ensures point contact elastic support with the side of the component and facilitates adaptation to slight tilting of the component surface during flipping.

[0031] It should be noted that in the first embodiment, the cross-sectional area of ​​all the first telescopic cylinders 13 is larger than the cross-sectional area of ​​all the second telescopic cylinders 16. According to the principle of volume transfer, when the first elastic pad 12 is pressed down by a small stroke, the gas volume change in the second telescopic cylinder 16 is the same. However, since the cross-sectional area of ​​the second telescopic cylinder 16 is smaller, the extension stroke of its piston rod (i.e., the second elastic pad 15) is amplified, thereby obtaining a larger protrusion of the second elastic pad 15 with a smaller retraction of the first elastic pad 12, making the support more reliable.

[0032] refer to Figure 7As a second specific implementation, this implementation further optimizes the multi-point synchronous unlocking capability of the mechanical locking mechanism 11 based on the first implementation. Specifically, multiple limiting rods 22 are spaced apart on the fixed rod 21, each limiting rod 22 corresponding to a support rod 20, and the straight rod 28 is fixedly connected to the bottom end of each limiting rod 22 through multiple connecting blocks 29. When unlocking is required, simply move the straight rod 28 to drive all the limiting rods 22 to swing synchronously, causing all the wedge-shaped protrusions 25 to disengage from the wedge-shaped blocks 26 at the same time, thus achieving multi-point synchronous unlocking. This structure is particularly suitable for situations where large-tonnage components are wide and multiple first elastic pads 12 need to be arranged on the second short arm 9 to distribute pressure, ensuring that the actions of each locking point are consistent and avoiding some elastic pads from getting stuck due to asynchronous unlocking.

[0033] It should be noted that the stiffness of the first spring 14 should be designed to match the weight of the component to ensure that when the component presses down on the second short arm 9, the compression of the first elastic pad 12 can trigger sufficient gas pressure without damaging the surface of the component due to excessive stiffness. The thickness of the polyurethane layer is preferably 3 to 5 mm, and its Shore hardness is controlled within the range of 70 to 85A to achieve good cushioning and wear resistance.

[0034] In this solution, both implementation methods effectively eliminate the slippage and collision problems caused by gaps during the flipping of large-tonnage components. The component's own gravity triggers a pneumatic linkage support, which, combined with the self-locking mechanism 11, ensures stable component posture and no impact noise throughout the flipping process, while maintaining high positioning accuracy after flipping. The device has a compact structure, requires no additional electrical control, and is particularly suitable for 180° flipping and righting operations of large components.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the implementation of the present invention may be made without departing from the principles.

Claims

1. A tilting and straightening device for a large-tonnage component, comprising a frame (1), a first L-shaped hinge frame (2), a second L-shaped hinge frame (3), a first hydraulic cylinder (4), and a second hydraulic cylinder (5); the first L-shaped hinge frame (2) and the second L-shaped hinge frame (3) are respectively hinged to the frame (1), and the hinge point is the intersection of the long and short arms of the L-shape; the first L-shaped hinge frame (2) is integrally formed by the first long arm (6) and the first short arm (7) through the intersection, and the second L-shaped hinge frame (3) is integrally formed by the second long arm (8) and the second short arm (9) through the intersection; the first short arm (7) and the second short arm (9) are interlocked and nested and are on the same horizontal plane in the working position; Its features are, Also includes: A gravity pneumatic linkage support system (10) is provided on the inner surface of the second short arm (9) and the inner surface of the second long arm (8), and a mechanical locking mechanism (11) is provided between the second short arm (9) and the second long arm (8). The gravity-pneumatic linkage support system (10) includes: At least one first elastic pad (12) is vertically movable and installed on the inner surface of the second short arm (9). A first telescopic cylinder (13) is connected below the first elastic pad (12). The first telescopic cylinder (13) is fixed to the second short arm (9). A first spring (14) is provided inside the first telescopic cylinder (13). The first elastic pad (12) protrudes from the surface of the second short arm (9) in its natural state. At least one second elastic pad (15) is vertically movable and installed on the inner surface of the second long arm (8). A second telescopic cylinder (16) is connected below the second elastic pad (15). A second spring (17) is provided inside the second telescopic cylinder (16). The second elastic pad (15) is flush with the surface of the second long arm (8) in its natural state. And the air passage assembly (18) connecting the first telescopic cylinder (13) and the second telescopic cylinder (16).

2. The overturning and righting device for a large-tonnage component according to claim 1, characterized in that: The first long arm (6) is used for initial placement of components; the second long arm (8) is initially vertical, and the second short arm (9) is initially horizontal; the first hydraulic cylinder (4) is used to drive the first L-shaped articulated frame (2) to rotate 90 degrees to make the first short arm (7) horizontal, and the second hydraulic cylinder (5) is used to drive the second L-shaped articulated frame (3) to rotate 90 degrees to make the second long arm (8) horizontal.

3. The overturning and righting device for a large-tonnage component according to claim 1, characterized in that: When the component is placed on the second short arm (9), the component squeezes the first elastic pad (12) to retract it, and the gas in the first telescopic cylinder (13) enters the second telescopic cylinder (16) through the air passage assembly (18), pushing the second elastic pad (15) to protrude from the surface of the second long arm (8), thereby forming elastic support for the side of the component.

4. The overturning and righting device for a large-tonnage component according to claim 1, characterized in that: The mechanical locking mechanism (11) includes a connecting plate (19), a support rod (20), a fixing rod (21), at least one limiting rod (22), a torsion spring (23), and an unlocking assembly (24); the connecting plate (19) is fixedly connected to the outside of the first elastic pad (12); the upper end of the support rod (20) is fixed to the connecting plate (19), and the lower end of the support rod (20) is provided with a wedge-shaped boss (25); the fixing rod (21) is fixedly installed on the second L-shaped hinge frame (3) and parallel to the second short arm (9); one end of the limiting rod (22) is sleeved on the fixing rod (21) and is fixed to the fixing rod (22). The rod (21) is rotated and engaged, and the other end of the limiting rod (22) is provided with a wedge-shaped block (26) that engages with the wedge-shaped boss (25); the torsion spring (23) is sleeved on the fixed rod (21), and its two ends are respectively fixed to the limiting rod (22) and the fixed plate (27) fixed on the fixed rod (21), and is used to provide a torsional restoring force to reset the limiting rod (22); the unlocking assembly (24) includes a straight rod (28) arranged parallel to the outside of the fixed rod (21), and the straight rod (28) is fixedly connected to the bottom end of each limiting rod (22) through a connecting block (29).

5. The overturning and righting device for a large-tonnage component according to claim 4, characterized in that: The inclined surface of the wedge-shaped boss (25) faces downward, so that the support rod (20) and the wedge-shaped boss (25) form a hook-like structure; the inclined surface angle of the wedge-shaped block (26) matches the inclined surface angle of the wedge-shaped boss (25), and the bottom of the wedge-shaped boss (25) is provided with an arc transition; when the first elastic pad (12) is pushed downward by the gravity of the component, the connecting plate (19) drives the support rod (20) to move downward, the wedge-shaped boss (25) squeezes the wedge-shaped block (26) of the limiting rod (22) to make the limiting rod (22) swing until the wedge-shaped boss (25) passes over the wedge-shaped block (26) and is embedded in it. Under the action of the torsion spring (23), the limiting rod (22) swings back to reset and locks the wedge-shaped boss (25); when it is necessary to unlock, the swing rod (28) drives all the limiting rods (22) to swing, so that the wedge-shaped boss (25) disengages from the wedge-shaped block (26).

6. The overturning and righting device for a large-tonnage component according to claim 1, characterized in that: The second spring (17) is a reset spring, and its elastic force is less than the force of the gas pushing the second elastic pad (15) to protrude. It is used to assist the second elastic pad (15) in resetting after unlocking.

7. The overturning and righting device for a large-tonnage component according to claim 1, characterized in that: The working surfaces of the first elastic pad (12) and the second elastic pad (15) are provided with a soft wear-resistant material layer (30), which is a polyurethane layer.

8. The overturning and righting device for a large-tonnage component according to claim 1, characterized in that: The cross-sectional area of ​​all the first telescopic cylinders (13) is greater than the cross-sectional area of ​​all the second telescopic cylinders (16) to achieve stroke amplification by utilizing the principle of volume transfer.

9. A tilting and righting device for a large-tonnage component according to claim 4, characterized in that: In the mechanical locking mechanism (11), a plurality of limit rods (22) are provided at intervals on the fixed rod (21), each limit rod (22) corresponds to a support rod (20), and the straight rod (28) is fixedly connected to the bottom end of each limit rod (22) through a plurality of connecting blocks (29) to achieve synchronous unlocking.

10. A tilting and righting device for a large-tonnage component according to claim 1, characterized in that: The air passage assembly (18) includes an air passage pipe (31) and a loop pipe (32). The loop pipe (32) is fixedly installed inside the second long arm (8). The air passage pipe (31) connects the first telescopic cylinder (13) and the loop pipe (32). A plurality of second telescopic cylinders (16) are provided on one side of the loop pipe (32) facing the surface of the second long arm (8). The bottom of the second telescopic cylinder (16) is connected to the inside of the loop pipe (32). The end of the second elastic pad (15) away from the second telescopic cylinder (16) is hemispherical.

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