A large-tonnage spherical crown liner plate auxiliary turnover tooling

By combining trapezoidal slots with fastening bolts and top bolts, and using the principle of center of gravity offset, the safety risks and stability issues of overturning large-tonnage spherical crown liners are solved, achieving efficient and safe overturning operations.

CN224674728UActive Publication Date: 2026-08-25HENGSHUI JIJUN ENG RUBBER FOR GATE OR BRIDGE
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Patent Information

Application Number
CN202522159506.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2026-08-25
Estimated Expiration
2035-10-13

AI Technical Summary

Technical Problem

The existing technology for flipping large-tonnage spherical crown plates has problems such as high safety risks, poor stability and low operating efficiency. In particular, magnetic hoisting cannot support large tonnage, and rope binding and general clamps are prone to slippage and detachment, making it difficult to accurately control the posture.

Method used

A large-tonnage spherical crown liner auxiliary flipping fixture was designed. It uses a trapezoidal slot to fit into the spherical crown liner, combined with the double mechanical constraints of fastening bolts and top bolts. It uses the principle of center of gravity offset to achieve precise flipping, and is equipped with anti-slip pads and tilt sensors for safety warning.

Benefits of technology

It enables the smooth flipping of large-tonnage spherical crown liners, avoids surface damage, improves flipping efficiency and safety, and has wide adaptability, suitable for spherical crown liners of different specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a big tonnage spherical crown lining plate auxiliary turnover frock relates to big tonnage spherical crown lining plate processing, assembly and detection auxiliary equipment technical field. This big tonnage spherical crown lining plate auxiliary turnover frock, including frock body, the frock body is rectangle board shape structure, and the long side one side of frock body is provided with trapezoidal slot, and trapezoidal slot fixedly connected in the edge of spherical crown lining plate body, and the frock body is provided with fastening mechanism and taut mechanism, and the outside of frock body is provided with hoisting mechanism, and the edge between trapezoidal slot and lining plate 11 is provided with antiskid mechanism, this big tonnage spherical crown lining plate auxiliary turnover frock, and the edge of trapezoidal slot of frock body and spherical crown lining plate body inlay, and the accurate butt joint of borrowing trapezoidal direction limit is realized, and prevents the shift, and the subsequent mechanism installation is based on, and the fixed connection of both forms integral force structure, guarantees and turns over firm.
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Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for processing, assembling and testing large-tonnage spherical crown liners, and in particular to an auxiliary flipping fixture for large-tonnage spherical crown liners. Background Technology

[0002] In the processing, assembly, and inspection of large-tonnage spherical crown liners, the flipping operation is an indispensable and crucial step. During processing, processes such as welding stainless steel and chrome plating require different sides of the liner to face upwards, and flipping is a prerequisite for ensuring the smooth progress of these processes. During assembly, lifting operations require flipping to adjust the liner's posture to achieve precise alignment of various components. In the inspection stage, to comprehensively evaluate the liner's quality, it is necessary to flip the liner to expose different inspection surfaces, ensuring no blind spots in inspection. It is evident that the efficiency and stability of the flipping operation directly affect the production progress and quality control of large-tonnage spherical crown liners, and are of great significance to the entire production process.

[0003] Currently, the flipping of large-tonnage spherical crown liners mainly relies on two types of solutions, but both have significant shortcomings. One type is magnetic hoisting, which uses magnetic equipment to attract and flip the liner. However, the magnetic force has an upper limit, which cannot meet the requirements of large tonnage, and it requires lifting from the edge of the crown, which poses a very high safety risk. The other type is rope binding or universal clamping. Because the liner is spherical and has a smooth surface, the rope is prone to slipping and the universal clamp is prone to detachment, resulting in violent shaking and poor stability during the flipping process. At the same time, the existing solutions do not have a center of gravity adaptation structure designed for the structural characteristics of the liner, making it difficult to accurately control the posture, resulting in low operating efficiency, easy damage to the surface of the liner, and poor adaptability. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a large-tonnage spherical crown liner auxiliary flipping tool that can solve the above-mentioned problem.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large-tonnage spherical crown liner auxiliary flipping fixture, comprising a fixture body, wherein the fixture body is a rectangular plate structure, and a trapezoidal slot is provided on one long side of the fixture body;

[0006] The tooling body has a spherical crown liner body on the outer side corresponding to the trapezoidal slot;

[0007] The tooling body is equipped with a fastening mechanism and a clamping mechanism. A hoisting mechanism is provided on the outer side of the tooling body. An anti-slip mechanism is provided between the trapezoidal slot and the edge of the spherical crown liner body.

[0008] Preferably, the fastening mechanism includes a locking hole, which is opened on one side of the tooling body corresponding to the trapezoidal slot position, and the edge of the spherical crown liner body is provided with a plurality of liner lifting holes;

[0009] The edge of the spherical crown liner is spirally connected with fastening bolts, which are inserted into trapezoidal slots and spirally connected to the liner's lifting holes.

[0010] Preferably, the tightening mechanism includes a tightening bolt hole, which is located on the other side of the locking hole on the tooling body, and a tightening bolt is spirally connected to the tightening bolt hole;

[0011] The tightening bolt is inserted into the trapezoidal slot and abuts against the edge of the spherical crown liner body.

[0012] Preferably, the hoisting mechanism includes a hoisting hole mounting component, which is located on the outside of the tooling body, and the contact surface between the hoisting hole mounting component and the tooling body is provided with rounded corners;

[0013] Preferably, the lifting hole mounting component has two symmetrical lifting holes, one and two, which are located on both sides of the center of gravity of the spherical crown liner.

[0014] Preferably, the anti-slip mechanism includes an anti-slip pad, which is fixedly connected to the trapezoidal slot, and an anti-slip groove is provided on the other side of the anti-slip pad.

[0015] Preferably, the detection and safety warning mechanism includes a tilt sensor, which is embedded in the side of the hoisting hole mounting component away from the trapezoidal slot.

[0016] Preferably, a data processing box is fixedly connected to the side of the hoisting hole mounting component away from the trapezoidal slot, an audible and visual alarm is fixedly connected to the data processing box, and a threshold adjustment button is fixedly connected to the data processing box.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This large-tonnage spherical crown liner auxiliary flipping fixture features dual lifting holes located on either side of the liner's center of gravity. During operation, simply select the corresponding lifting hole for lifting, and the desired surface of the liner will be precisely facing upwards using the principle of center of gravity offset, eliminating the need for complex adjustment steps. Compared to the cumbersome operation of existing technologies that require repeated posture calibration, this design significantly improves the flipping efficiency in processing, assembly, and inspection, reducing labor time consumption.

[0019] 2. This auxiliary tilting fixture for the large-tonnage spherical crown liner uses fastening bolts connected to the bolt holes on the spherical crown liner itself, along with tightening bolts to reinforce the spherical surface, forming a double mechanical constraint. This completely overcomes the weight bottleneck of magnetic lifting and can stably support large-tonnage spherical crown liners. This rigid connection method fundamentally solves the problems of rope binding slippage and universal clamp detachment, ensuring a smooth and wobbly tilting process and significantly reducing safety hazards.

[0020] 3. This large-tonnage spherical crown liner auxiliary flipping fixture is shaped to match the spherical curvature of the liner and is connected by the liner's own lifting holes, avoiding additional clamping or adsorption on the liner surface and effectively preventing surface damage; the anti-slip pad on the trapezoidal groove further enhances the stability of the fit with the spherical surface, ensuring ease of operation and adaptability to spherical crown liners of different specifications, making it widely applicable. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of an auxiliary flipping fixture for a large-tonnage spherical crown liner according to the present invention;

[0023] Figure 2 This is a cross-sectional schematic diagram of an auxiliary flipping tool for a large-tonnage spherical crown liner according to the present invention;

[0024] Figure 3 This is a front view of the auxiliary flipping fixture for a large-tonnage spherical crown liner according to this utility model.

[0025] Figure 4 This is a schematic diagram of the back of the auxiliary flipping fixture for a large-tonnage spherical crown liner of this utility model.

[0026] Reference numerals: 1. Fixture body; 2. Trapezoidal slot; 3. Anti-slip pad; 4. Anti-slip indentation; 5. Locking hole; 6. Tightening bolt hole; 7. Lifting hole mounting component; 8. Rounded corner; 9. Lifting hole one; 10. Lifting hole two; 11. Spherical crown liner body; 13. Liner lifting hole; 14. Fastening bolt; 15. Tightening bolt; 16. Tilt sensor; 17. Data processing box; 18. Audible and visual warning device; 19. Threshold adjustment button. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a large-tonnage spherical crown liner auxiliary flipping tool, including tool body 1, tool body 1 is a rectangular plate structure, and a trapezoidal slot 2 is opened on one side of the long side of tool body 1.

[0031] The tooling body 1 has a spherical crown liner body 11 on the outer side corresponding to the trapezoidal slot 2.

[0032] The tooling body 1 is equipped with a fastening mechanism and a clamping mechanism. A hoisting mechanism is provided on the outside of the tooling body 1. An anti-slip mechanism is provided between the trapezoidal slot 2 and the edge of the spherical crown liner body.

[0033] The tooling body 1 is equipped with a detection and safety early warning mechanism;

[0034] The tooling body 1 is connected to the edge of the spherical crown liner body 11 by trapezoidal slot 2. The guiding and limiting properties of the trapezoidal structure are used to achieve the initial accurate docking of the tooling and the spherical crown liner, and to avoid lateral displacement during the connection.

[0035] This structure provides a stable foundation for the installation of subsequent fastening and clamping mechanisms, ensuring that each mechanism can act accurately on the spherical crown liner. At the same time, the trapezoidal slot 2 is fixedly connected to the edge of the spherical crown liner body 11, so that the tooling body 1 and the spherical crown liner body 11 form an integral load-bearing structure, providing a stable connection foundation for subsequent flipping operations and ensuring that no relative displacement occurs when bearing large tonnage loads.

[0036] Furthermore, the fastening mechanism includes a locking hole 5, which is opened on one side of the tooling body 1 corresponding to the trapezoidal slot 2 position, and a number of liner lifting holes 13 are opened on the edge of the spherical crown liner body 11.

[0037] A fastening bolt 14 is spirally connected to the edge of the spherical crown liner body 11. The fastening bolt 14 passes through the trapezoidal slot 2 and is spirally connected to the liner lifting hole 13.

[0038] The fastening mechanism provides a passage for the fastening bolt 14 through the locking hole 5. After the fastening bolt 14 passes through the locking hole 5 and the trapezoidal slot 2, it forms a threaded connection with the liner lifting hole 13 on the edge of the spherical crown liner body 11. The liner lifting hole 13 cooperates with the fastening bolt 14 to rigidly fix the edges of the tooling body 1 and the spherical crown liner body 11 from multiple points, tightly connecting the two into one. The self-locking property of the threaded connection ensures that there will be no loosening during the flipping process, distributes the weight load of the spherical crown liner body 11, avoids excessive force at a single point leading to connection failure, and provides reliable fastening force for the overall structure.

[0039] Furthermore, the tightening mechanism includes a tightening bolt hole 6, which is located on the other side of the tooling body 1 corresponding to the locking hole 5, and a tightening bolt 15 is spirally connected to the tightening bolt hole 6.

[0040] The tightening bolt 15 is inserted into the trapezoidal slot 2 and abuts against the edge of the spherical crown liner body 11;

[0041] The tightening bolt 15 is screwed into the trapezoidal slot 2 through the threaded engagement of the tightening bolt hole 6, and its end is in close contact with the edge of the spherical crown liner body 11 to generate a tightening force. Since the tightening bolt hole 6 and the locking hole 5 are located on both sides of the tooling body 1, the tightening force and the fastening force of the fastening bolt 14 form forces in opposite directions, forming a clamping constraint on the edge of the spherical crown liner body 11 from both sides. This bidirectional force structure eliminates the gap between the tooling and the spherical crown liner, preventing relative sliding and shaking caused by the gap during flipping.

[0042] Meanwhile, the tightening action of the top bolt 15 can be adjusted according to the actual situation, adapting to spherical crown liners of different sizes or surface conditions, thus enhancing the versatility and stability of the tooling.

[0043] Furthermore, the lifting mechanism includes a lifting hole mounting component 7, which is located on the outside of the tooling body 1. The thickness of the lifting hole mounting component 7 is slightly thinner than that of the tooling body 1, and the contact surface between the lifting hole mounting component 7 and the tooling body 1 is provided with a rounded corner 8.

[0044] The lifting hole mounting component 7 has symmetrical lifting holes 9 and 10, and the lifting holes 9 and 10 are located on both sides of the center of gravity of the spherical crown liner body 11.

[0045] The lifting hole mounting component 7 serves as the load-bearing structure for lifting force. Its slightly thinner design ensures strength while reducing overall weight. The rounded corner 8 disperses the stress at the connection between the lifting hole mounting component 7 and the tooling body 1, preventing structural breakage due to stress concentration during lifting. Since lifting hole 1 9 and lifting hole 2 10 are located on both sides of the center of gravity of the spherical crown liner body 11, when lifting lifting hole 1 9 is lifted, the spherical crown liner will rotate around the center of gravity to one side until the required surface faces upward.

[0046] Similarly, when lifting hoisting hole 210, it flips to the other side; this method of flipping by shifting the center of gravity does not require a complicated control mechanism. The flipping angle and final posture can be precisely controlled simply by selecting the lifting point, which greatly improves the efficiency of operation.

[0047] Furthermore, the anti-slip mechanism includes an anti-slip pad 3, which is fixedly connected to the trapezoidal slot 2, and an anti-slip groove 4 is provided on the other side of the anti-slip pad 3;

[0048] Furthermore, the detection and safety warning mechanism includes a tilt sensor 16, which is embedded in the hoisting hole mounting part 7 on the side away from the trapezoidal slot 2.

[0049] A data processing box 17 is fixedly connected to the side of the hoisting hole mounting component 7 away from the trapezoidal slot 2. An audible and visual alarm 18 is fixedly connected to the data processing box 17. A threshold adjustment button 19 is fixedly connected to the data processing box 17.

[0050] The tilt sensor 16 is a BWH527-30-485 Beiwei sensor, embedded on the side of the lifting hole mounting part 7 away from the trapezoidal slot 2. When the tooling drives the spherical crown liner body 11 to perform a flipping operation, the tilt sensor 16 continuously captures the angle change data during the flipping process of the liner and records the liner posture in real time. The angle data collected by the tilt sensor 16 is synchronously transmitted to the data processing box 17 fixedly connected on the side of the lifting hole mounting part 7 away from the trapezoidal slot 2. The data processing box 17 is an S7-200 SMART CPU SR20 model, which performs real-time analysis and judgment on the received angle values.

[0051] Workers can preset the safe upper limit threshold of the flipping angle according to the liner specifications and operational requirements using the threshold adjustment button 19 fixedly connected to the data processing box 17. If the tilt sensor 16 detects that the liner flipping angle exceeds the preset threshold, the data processing box 17 immediately triggers the audible and visual warning device 18 fixedly connected to it. The audible and visual warning device 18 adopts the YL03-24-DC24V-R model. Through the dual signals of flashing light and buzzer prompt, it quickly warns the operator to stop the flipping operation, so as to avoid the liner center of gravity imbalance or structural damage due to over-flipping and ensure the safety of the flipping process.

[0052] Working principle: The fastening mechanism provides a passage for the fastening bolt 14 through the locking hole 5. After the fastening bolt 14 passes through the locking hole 5 and the trapezoidal slot 2, it forms a threaded connection with the liner lifting hole 13 on the edge of the spherical crown liner body 11. The correspondingly distributed liner lifting holes 13 cooperate with the fastening bolt 14 to rigidly fix the tooling body 1 from multiple points, tightly connecting the two into one. The self-locking property of the threaded connection ensures that there will be no loosening during the flipping process, distributes the weight load of the spherical crown liner body 11, avoids excessive force at a single point leading to connection failure, and provides reliable fastening force for the overall structure.

[0053] The tightening bolt 15 is screwed into the trapezoidal slot 2 through the threaded engagement of the tightening bolt hole 6, and its end is in close contact with the edge of the spherical crown liner body 11 to generate a tightening force. Since the tightening bolt hole 6 and the locking hole 5 are located on both sides of the tooling body 1, the tightening force and the fastening force of the fastening bolt 14 form forces in opposite directions, forming a clamping constraint on the edge of the spherical crown liner body 11 from both sides. This bidirectional force structure eliminates the gap between the tooling and the spherical crown liner, preventing relative sliding and shaking caused by the gap during flipping.

[0054] Meanwhile, the tightening action of the top bolt 15 can be adjusted according to the actual situation, adapting to spherical crown liners of different sizes or surface conditions, thus enhancing the versatility and stability of the tooling.

[0055] The lifting hole mounting component 7 serves as the load-bearing structure for lifting force. Its slightly thinner design ensures strength while reducing overall weight. The rounded corner 8 disperses the stress at the connection between the lifting hole mounting component 7 and the tooling body 1, preventing structural breakage due to stress concentration during lifting. Since lifting hole 1 9 and lifting hole 2 10 are located on both sides of the center of gravity of the spherical crown liner body 11, when lifting lifting hole 1 9 is lifted, the spherical crown liner will rotate around the center of gravity to one side until the required surface faces upward.

[0056] Similarly, when lifting hoisting hole 210, it flips to the other side; this method of flipping by shifting the center of gravity does not require a complicated control mechanism. The flipping angle and final posture can be precisely controlled simply by selecting the lifting point, which greatly improves the efficiency of operation.

[0057] The anti-slip pad 3 is made of a material with a high coefficient of friction. After being fixed to the surface of the trapezoidal slot 2, it directly contacts the edge of the spherical crown liner body 11, increasing the basic friction between the two. The anti-slip grooves 4 on the anti-slip pad 3 form a concave-convex fit with the edge surface of the spherical crown liner body 11. When the tooling and the spherical crown liner are subjected to a flipping force, the concave-convex structure interlocks with each other, further preventing relative sliding. This combination of mechanical interlocking and material friction significantly improves the fit stability between the trapezoidal slot 2 and the edge of the spherical crown liner body 11 under the pressure provided by the fastening mechanism and the clamping mechanism. Even if there is an instantaneous impact force during the flipping process, it can effectively prevent slippage and ensure operational safety.

[0058] The tilt sensor 16 is a BWH527-30-485 Beiwei sensor, embedded on the side of the lifting hole mounting part 7 away from the trapezoidal slot 2. When the tooling drives the spherical crown liner body 11 to perform a flipping operation, the tilt sensor 16 continuously captures the angle change data during the flipping process of the liner and records the liner posture in real time. The angle data collected by the tilt sensor 16 is synchronously transmitted to the data processing box 17 fixedly connected on the side of the lifting hole mounting part 7 away from the trapezoidal slot 2. The data processing box 17 is an S7-200 SMART CPU SR20 model, which performs real-time analysis and judgment on the received angle values.

[0059] Workers can preset the safe upper limit threshold of the flipping angle according to the liner specifications and operational requirements using the threshold adjustment button 19 fixedly connected to the data processing box 17. If the tilt sensor 16 detects that the liner flipping angle exceeds the preset threshold, the data processing box 17 immediately triggers the audible and visual warning device 18 fixedly connected to it. The audible and visual warning device 18 adopts the YL03-24-DC24V-R model. Through the dual signals of flashing light and buzzer prompt, it quickly warns the operator to stop the flipping operation, so as to avoid the liner center of gravity imbalance or structural damage due to over-flipping and ensure the safety of the flipping process.

[0060] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A tooling for assisting in the flipping of a large-tonnage spherical crown liner, comprising a tooling body (1), characterized in that: The tooling body (1) is a rectangular plate structure, and a trapezoidal slot (2) is provided on one side of the long side of the tooling body (1). The tooling body (1) has a spherical crown liner body (11) on the outside of the trapezoidal slot (2). The tooling body (1) is fixedly connected to the edge of the spherical crown liner body (11) through the trapezoidal slot (2). The tool body (1) is equipped with a fastening mechanism and a clamping mechanism, and a hoisting mechanism is provided on the outside of the tool body (1).

2. The auxiliary flipping fixture for a large-tonnage spherical crown liner as described in claim 1, characterized in that: The fastening mechanism includes a locking hole (5), which is located on one side of the tooling body (1) corresponding to the trapezoidal slot (2). A liner hoisting hole (13) is provided on the edge of the spherical crown liner body (11). The edge of the spherical crown liner body (11) is threaded with fastening bolts (14), which are threaded into the trapezoidal slot (2) and spirally connected to the liner hoisting hole (13).

3. The auxiliary flipping fixture for a large-tonnage spherical crown liner according to claim 2, characterized in that: The tightening mechanism includes a tightening bolt hole (6), which is located on the other side of the locking hole (5) on the tool body (1), and a tightening bolt (15) is spirally connected to the tightening bolt hole (6). The tightening bolt (15) is inserted into the trapezoidal slot (2) and abuts against the edge of the spherical crown liner body (11).

4. The auxiliary flipping fixture for a large-tonnage spherical crown liner as described in claim 3, characterized in that: The hoisting mechanism includes a hoisting hole mounting component (7), which is located on the outside of the tooling body (1). The contact surfaces of the hoisting hole mounting component (7) and the tooling body (1) are provided with rounded corners (8).

5. The auxiliary flipping fixture for a large-tonnage spherical crown liner according to claim 4, characterized in that: The lifting hole mounting component (7) is provided with symmetrical lifting hole one (9) and lifting hole two (10), and the lifting hole one (9) and lifting hole two (10) are located on both sides of the center of gravity of the spherical crown liner body (11).

6. The auxiliary flipping fixture for a large-tonnage spherical crown liner as described in claim 1, characterized in that: An anti-slip mechanism is provided between the trapezoidal slot (2) and the edge of the spherical crown liner body (11). The anti-slip mechanism includes an anti-slip pad (3), which is fixedly connected to the trapezoidal slot (2). An anti-slip groove (4) is provided on the other side of the anti-slip pad (3).

7. The auxiliary flipping fixture for a large-tonnage spherical crown liner according to claim 1, characterized in that: The tooling body (1) is provided with a detection and safety warning mechanism, which includes an inclination sensor (16) embedded in the hoisting hole mounting part (7) on the side away from the trapezoidal slot (2).

8. The auxiliary flipping fixture for a large-tonnage spherical crown liner according to claim 7, characterized in that: A data processing box (17) is fixedly connected to the side of the hoisting hole mounting component (7) away from the trapezoidal slot (2), an audible and visual alarm (18) is fixedly connected to the data processing box (17), and a threshold adjustment button (19) is fixedly connected to the data processing box (17).