Shape correcting tool for industrial cylindrical part

Abstract

The utility model relates to the technical field of industrial sizing, in particular to a sizing tool for an industrial cylindrical part, which comprises a plurality of sizing block parts arranged on the circumference of the bottom of the cylindrical part and used for bearing the cylindrical part. The first ejector rod and the second ejector rod are arranged in the cylindrical part, the first ejector rod is located at the position close to the bottom of the cylindrical part, and the second ejector rod is located at the position close to the top of the cylindrical part. The cylindrical part sizing tool can achieve the purpose of sizing a cylindrical part, is simple in structure and easy to install, facilitates effective sizing within a short time, reduces requirements for operators, is particularly suitable for the situation of sizing a large cylindrical part within a short time, and reduces sizing cost.

Description

Technical Field

[0001] This utility model relates to the field of industrial alignment technology, and in particular to an alignment fixture for industrial cylindrical parts. Background Technology

[0002] In industrial applications, large cylindrical components need to be precisely assembled with other parts. Only by correcting the shape of large cylindrical components and ensuring their dimensional accuracy can the external force be distributed as evenly as possible across the entire surface of the cylindrical component when it is subjected to external forces in actual use.

[0003] Existing calibration methods include thermal calibration, heat treatment, creep correction, and numerical simulation and pre-calibration. However, when dealing with ultra-large titanium products, these methods cannot effectively achieve the calibration goal in a short time as they can with steel products due to the material properties of titanium products (such as thermophysical properties, mechanical properties, phase structure changes, etc.) and their huge size.

[0004] Therefore, existing technologies still need improvement. Utility Model Content

[0005] One of the technical problems that this utility model aims to solve is how to effectively calibrate large cylindrical parts in a short time, minimize the requirements for operators during the calibration process, and reduce calibration costs.

[0006] To address the aforementioned technical problems, some embodiments of this utility model disclose a straightening fixture for industrial cylindrical parts, comprising:

[0007] Multiple shim components are disposed on the bottom circumference of the cylindrical component and are used to support the cylindrical component;

[0008] A first push rod and a second push rod are disposed inside the cylindrical component, wherein the first push rod is located near the bottom of the cylindrical component and the second push rod is located near the top of the cylindrical component.

[0009] In some embodiments, the straightening fixture for the industrial cylindrical component further includes a set of support rods distributed around the first push rod and the second push rod, the set of support rods respectively contacting the inner wall of the cylindrical component.

[0010] In some embodiments, the first top rod and a group of supporting rods around it are geometrically distributed in a star shape, and the second top rod and a group of supporting rods around it are geometrically distributed in a star shape.

[0011] In some embodiments, the first push rod and the second push rod respectively contact the inner wall of the cylindrical member through a pad.

[0012] In some embodiments, the first and second jacks are closely attached to the base plate by hydraulic jacks.

[0013] In some embodiments, the first and second jacks have a length matching the inner diameter of the cylindrical member, an outer diameter of 299mm and a wall thickness of 30mm.

[0014] In some embodiments, the first and second jacks are integrally connected by a steel plate, and the second jack is hung on the top circumference of the cylindrical member by a plurality of hanging plates.

[0015] In some embodiments, the number of the base iron components is at least 3, and the base iron components are evenly arranged on the bottom circumference of the cylindrical member.

[0016] In some embodiments, the height of the gap between adjacent base iron components is at least 2m.

[0017] In some embodiments, the cylindrical member is a titanium alloy cylindrical member having an outer diameter of at least 3000mm, a wall thickness of at least 200mm, and a roundness deviation in the circumferential direction of up to 113mm.

[0018] By adopting the technical scheme, the utility model has at least the following beneficial effects:

[0019] The utility model provides a kind of shape correction tool of industrial cylindrical member, including a plurality of base iron components for being arranged on the bottom circumference of cylindrical member and being used to carry cylindrical member, and first jack and second jack being arranged in the inside of cylindrical member, wherein, first jack is located at the position close to the bottom of cylindrical member, and second jack is located at the position close to the top of cylindrical member, by the cooperation of a plurality of base iron components and first jack and second jack, the shape correction purpose to cylindrical member is realized, the shape correction tool simple structure, and it is easy to install, it is favorable to realize effective shape correction in short time, reduce the requirement to operator, especially suitable for the situation of large cylindrical member shape correction in short time, reduce shape correction cost. ACCURACY

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1The utility model discloses some embodiments of a kind of industrial cylindrical part's main view of shape correcting tool disclosed in the utility model;

[0022] Figure 2 The utility model discloses some embodiments of a kind of industrial cylindrical part's plan view of shape correcting tool disclosed in the utility model;

[0023] Figure 3 The schematic view between the first ejector rod and the second ejector rod and the backing plate is disclosed in some embodiments of the utility model;

[0024] Figure 4 The temperature diagram in each section during stress relief annealing of large titanium alloy cylindrical part is disclosed in some embodiments of the utility model.

[0025] Mark explanation:

[0026] 1, pad iron component;2, first ejector rod;3, second ejector rod;4, steel plate;5, hanging plate;6, backing plate;7, cylindrical part;8, a group of support rods;9, hydraulic jack;100, the shape correcting tool of industrial cylindrical part. Specific implementation

[0027] The embodiments of the present disclosure are further described in detail below in conjunction with the drawings and examples. The detailed description of the following examples and drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, not limited to the specific examples disclosed in the text, but includes all technical solutions falling within the scope of claims.

[0028] The present disclosure provides these embodiments is to make the present disclosure thorough and complete, and fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the component of material, numerical expression and numerical value set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0029] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] In addition, "first", "second", and similar words used in the disclosure do not mean any order, number or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0031] It should also be noted that in the description of the present disclosure, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0032] All terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise explicitly defined here.

[0033] Techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the specification.

[0034] As Figure 1 shown, Figure 1This is a front view of an industrial cylindrical component alignment fixture 100 disclosed in some embodiments of the present invention. The industrial cylindrical component alignment fixture 100 includes multiple shim components 1 and a first push rod 2 and a second push rod 3 disposed inside the cylindrical component 7. The shim components 1 are disposed on the bottom circumference of the cylindrical component 7 and are used to support the cylindrical component 7. Since the multiple shim components are of the same specification, they help to keep the cylindrical component 7 in a horizontal state, thereby enhancing the stability of the cylindrical component 7. The first push rod 2 is located inside the cylindrical component 7 near the bottom, and the first push rod 3 is located inside the cylindrical component 7 near the top. This arrangement of the first push rod 2 and the second push rod 3 ensures that when the cylindrical component 7 is subjected to axial external force, the external force is evenly distributed within the axial length range of the cylindrical component 7. The cylindrical part 7 is effectively shaped by the cooperation of multiple shim parts 1, the first push rod 2, and the second push rod 3. The shaped tooling 100 has a simple structure and is easy to install, which is conducive to achieving effective shaping in a short time, reducing the requirements for operators, and is especially suitable for the short-term shaping of large cylindrical parts 7, thus reducing shaping costs.

[0035] According to several embodiments of the present invention, Figure 2 For a top view of the industrial cylindrical component straightening fixture disclosed in some embodiments of this utility model, please refer to... Figure 1 Further reference Figure 2 The industrial cylindrical component straightening fixture 100 also includes a set of support rods 8 distributed around the first push rod 2 and the second push rod 3, respectively. These support rods 8 contact the inner wall of the cylindrical component 7. It can be understood that there is a set of support rods 8 around each of the first push rod 2 and the second push rod 3, and these two sets of support rods 8 can be in the same orientation, such as... Figure 2 As shown, from the bottom view, the sets of support rods 8 distributed around the first top rod 2 and the second top rod 3 are overlapping. These two sets of support rods 8 may also have different orientations; in this case, from the bottom view, the sets of support rods 8 distributed around the first top rod 2 and the second top rod 3 are not overlapping, and are not shown in this embodiment. The sets of support rods 8 distributed around the first top rod 2 and the second top rod 3 respectively provide support for the first top rod 2 and the second top rod 3, so that the first top rod 2 and the second top rod 3 can be stably installed inside the cylindrical component 7.

[0036] Please refer to several embodiments of this utility model. Figures 1-2 The first push rod 2 and its surrounding set of support rods 8 are geometrically distributed in a star shape, as are the second push rod 2 and its surrounding set of support rods 8. This star-shaped distribution allows the set of support rods 8 to apply support forces to the first push rod 2 and the second push rod 3 from multiple different directions, further ensuring the stability of the first push rod 2 and the second push rod 3 themselves. This ensures that when the cylindrical component 7 is subjected to axial external forces, the external forces are evenly distributed within the axial length of the cylindrical component 7.

[0037] According to some embodiments of the utility model, the first top rod 2 and the second top rod 3 are in contact with the inner wall of the cylindrical member 7 through the gasket plate 6. It can be understood that a group of support rods 8 distributed around the first top rod 2 and the second top rod 3 are detachably connected in contact with the inner wall of the cylindrical member 7, and the group of support rods 8 can also be in contact with the inner wall of the cylindrical member 7 through the gasket plate 6. By setting the gasket plate 6, the concentrated force transmitted by the first top rod 2 and the second top rod 3 can be dispersed to a larger contact area between the gasket plate 6 and the inner wall of the cylindrical member 7, thereby reducing the problem of local deformation of the cylindrical member 7.

[0038] According to some embodiments of the utility model, Figure 3 For the schematic diagram between the first top rod and the second top rod and the gasket plate disclosed in some embodiments of the utility model, please refer to Figures 1-2 , further refer to Figure 3 , the first top rod 2 and the second top rod 3 are closely attached to the gasket plate 6 through the hydraulic jack 9. For example, in one specific embodiment, the first top rod 2 and the second top rod 3 are closely attached to the gasket plate 6 through a 500-ton hydraulic jack 9, so that the first top rod 2 and the second top rod 3 accurately support the cylindrical member 7 and support the cylindrical member 7 to be round.

[0039] According to some embodiments of the utility model, please continue to refer to Figures 1-3 , the length of the first top rod 2 and the second top rod 3 matches the inner diameter of the cylindrical member 7, the outer diameter of the first top rod 2 and the second top rod 3 is 299mm, and the wall thickness of the first top rod and the second top rod is 30mm.

[0040] According to some embodiments of the utility model, please continue to refer to Figures 1-3 , the first top rod 2 and the second top rod 3 are connected into a whole through the steel plate 4, so that the first top rod 2 and the second top rod 3 can move integrally inside the cylindrical member 7, such as moving up or down, and the second top rod 3 is hung on the top circumference of the cylindrical member 7 through multiple hanging plates 5. The mounting mode using multiple hanging plates 5 makes the first top rod 2 and the second top rod 3 have detachability, and can make the first top rod 2 and the second top rod 3 have high flexibility during installation.

[0041] According to some embodiments of the utility model, please continue to refer to Figures 1-3 , the number of gasket components 1 is at least 3, and the gasket components 1 are evenly arranged on the bottom circumference of the cylindrical member 7. In actual application, generally three gasket components 1 can be evenly distributed on the bottom circumference of the cylindrical member 7, which can provide stable support for the cylindrical member 7, and at the same time reduce the cost. According to actual needs, multiple gasket components 1 can be added in the gap between adjacent gasket components 1 to provide more stable support for the cylindrical member 7.

[0042] According to the several embodiments of the utility model, please continue to refer to Figures 1-3 The height of the gap between the adjacent pad iron parts 1 is at least 2m. It is beneficial to ensure that the gap between the adjacent pad iron parts 1 can pass through the operator, and it is convenient for the operator to work.

[0043] According to the several embodiments of the utility model, please continue to refer to Figures 1-3 The cylindrical part 7 is a titanium alloy cylindrical part 7, the outer diameter size of the titanium alloy cylindrical part 7 is at least 3000mm, the wall thickness is at least 200mm, and the roundness deviation of the titanium alloy cylindrical part 7 in the circumferential direction is up to 113mm. For large titanium alloy cylindrical parts 7, due to the influence of their own material properties (such as thermal physical properties, mechanical properties, phase structure changes, etc.) and factors such as large size, the existing shape correction scheme cannot effectively correct in a short time, and the shape correction tool 100 of the industrial cylindrical part of the present application is used in cooperation with the stress relief annealing process of the large titanium alloy cylindrical part 7, through the cooperation of the plurality of pad iron parts 1 and the first and second top rods 2 and 3, the purpose of effectively correcting the large titanium alloy cylindrical part 7 is realized. Since the large titanium alloy will produce a large amount of residual stress after forging, machining and other manufacturing processes. These residual stresses will make the titanium alloy parts in an unstable stress state. The stress relief annealing process can effectively eliminate or greatly reduce these residual stresses by heating the titanium alloy to an appropriate temperature and maintaining it for a certain period of time, and then treating it in a suitable cooling manner, so that the large titanium alloy cylindrical part 7 will not deform uncontrollably due to the sudden release of internal stress, thereby ensuring that the shape correction process can be carried out in the expected manner, improving the accuracy and predictability of the shape correction. As shown in Figure 4 , Figure 4 The temperature diagram of each section in the stress relief annealing process of the large titanium alloy cylindrical part 7 is given, the furnace is entered when the temperature is less than or equal to 200℃, the heating rate in the furnace is less than or equal to 50℃ / h, it is kept for 6h after being raised to 590℃~610℃, then slow cooling is started, the cooling rate in the furnace is less than or equal to 60℃ / h, and the furnace is discharged after being cooled to less than or equal to 250℃. In practical application, the shape correction accuracy error is reduced to below 15mm, which meets the requirement of cutting allowance, at the same time, the shape correction time is shortened to below 5 days, and the shape correction cost is greatly reduced.

[0044] The above embodiments have described the shape correction tool 100 of the industrial cylindrical part of the utility model in detail, and the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0045] Although some specific embodiments of the present disclosure have been described in detail by way of examples, one skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the present disclosure. One skilled in the art should understand that the above embodiments can be modified or equivalent replacements can be made to some technical features without departing from the scope and spirit of the present disclosure. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict.

Claims

1. A straightening tool for an industrial cylindrical part, characterized by, include: Multiple shim components are disposed on the bottom circumference of the cylindrical component and are used to support the cylindrical component; A first push rod and a second push rod are disposed inside the cylindrical component, wherein the first push rod is located near the bottom of the cylindrical component and the second push rod is located near the top of the cylindrical component.

2. The sizing tool for industrial cylindrical articles according to claim 1, characterized in that, The straightening fixture for the industrial cylindrical component also includes a set of support rods distributed around the first push rod and the second push rod, and the set of support rods respectively contact the inner wall of the cylindrical component.

3. The sizing tool for industrial cylindrical articles according to claim 2, characterized in that, The first top rod and a group of supporting rods around it are geometrically distributed in a star shape, and the second top rod and a group of supporting rods around it are geometrically distributed in a star shape.

4. The sizing tool for industrial cylindrical articles of claim 1, wherein, The first push rod and the second push rod respectively contact the inner wall of the cylindrical component through a pad.

5. The sizing tool for industrial cylindrical articles according to claim 4, characterized in that, The first and second push rods are respectively tightly attached to the pad plate by hydraulic jacks.

6. The sizing tool for industrial cylindrical articles of claim 1 wherein, The lengths of the first and second push rods match the inner diameter of the cylindrical component. The outer diameter of both the first and second push rods is 299 mm, and the wall thickness of both the first and second push rods is 30 mm.

7. The sizing tool for industrial cylindrical articles of claim 1 wherein, The first and second top rods are connected as one piece by a steel plate, and the second top rod is suspended on the top circumference of the cylindrical component by multiple hanging plates.

8. The sizing tool for industrial cylindrical articles of claim 1 wherein, The number of the shim components is at least three, and the shim components are evenly arranged on the bottom circumference of the cylindrical component.

9. The sizing tool for industrial cylindrical articles of claim 1 wherein, The height of the gap between adjacent pad components is at least 2m.

10. The sizing tool for industrial cylindrical articles of claim 1 wherein, The cylindrical component is a titanium alloy cylindrical component, with an outer diameter of at least 3000 mm, a wall thickness of at least 200 mm, and a circumferential deviation of up to 113 mm.

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