Cylinder correction device and method

Abstract

The application belongs to the technical field of shaping processing, and particularly relates to a cylindrical part correcting device and method. The cylindrical part correcting device comprises a rack, a first driver arranged on the rack, a rigid reference support roller connected with the first driver and rotatably arranged on the rack, a first lifter arranged on the rack, a second lifter arranged on the rack, a second driver arranged on the first lifter, a semi-flexible pressing roller with one end connected with the second driver and the other end connected with the second lifter, and the semi-flexible pressing roller being rotatably arranged on the rack. The rotating direction of the rigid reference support roller is opposite to that of the semi-flexible pressing roller, and the semi-flexible pressing roller is arranged on the rack in a lifting manner and below the rigid reference support roller. The cylindrical part correcting device and method can reduce labor intensity, improve efficiency and precision.

Description

Technical Field

[0001] This application belongs to the field of shaping and processing technology, specifically relating to a cylindrical part correction device and method. Background Technology

[0002] Cylindrical parts are commonly used forming components in fields such as machinery manufacturing, aerospace, and hardware processing. After preliminary forming processes such as stretching, rolling, and welding, cylindrical parts generally have problems with contour deformation, roundness deviation, surface unevenness, and dimensional and positional errors, which cannot meet the precision requirements for product assembly and use. Therefore, it is necessary to correct the shape of the cylindrical parts through a straightening process to ensure the dimensional accuracy and shape consistency of the product.

[0003] Currently, the industry standard method for correcting cylindrical parts is the mold-based conformal correction process. The specific procedure involves: pre-fabricating a conformal mold that matches the standard shape of the target cylindrical part; placing the cylindrical part to be corrected onto the outside of the mold; and then manually striking or patting the outer wall of the cylindrical part using handheld tools, such as hammers and rubber patters. Through continuous external force, the cylindrical part undergoes slight plastic deformation, gradually conforming to the standard outline of the mold. The mold's shaping and positioning function corrects deformation defects, ultimately ensuring the overall shape and dimensions of the cylindrical part meet production standards.

[0004] However, the aforementioned traditional cylindrical component straightening process has significant technical defects in actual production applications: Firstly, the alignment process relies entirely on manual operation, requiring operators to continuously exert force to knock and pat throughout the process. The degree of human intervention is high, the labor intensity of the operators is extremely high, and fatigue is likely to occur during long-term operation, which further affects the stability of the alignment operation.

[0005] Secondly, the force, frequency, and uniformity of manual hammering and patting operations rely entirely on the operator's experience, resulting in poor consistency and a tendency for local over-correction or under-correction. Consequently, the product correction accuracy is difficult to standardize, leading to an unstable yield rate.

[0006] Third, the manual single-piece alignment process is cumbersome and slow, making it impossible to achieve batch and efficient production. The overall production efficiency is extremely low, which is difficult to adapt to the needs of modern mass production and high-precision cylindrical parts processing, and seriously restricts the overall capacity and production efficiency of cylindrical parts processing. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a cylindrical component correction device and method, which aims to at least partially solve the technical problems of high labor intensity, low precision, and low efficiency in the cylindrical component correction process.

[0008] The technical solution of this invention is as follows: A cylindrical component straightening device and method includes: a frame; a first driver disposed on the frame; a rigid reference support roller connected to the first driver and rotatably disposed on the frame; a first lifter disposed on the frame; a second lifter disposed on the frame; a second driver disposed on the first lifter; and a semi-flexible pressure roller, one end of which is connected to the second driver and the other end of which is connected to the second lifter, the semi-flexible pressure roller being rotatably disposed on the frame; wherein the rigid reference support roller rotates in the opposite direction to the semi-flexible pressure roller, the semi-flexible pressure roller being liftably disposed on the frame and located below the rigid reference support roller.

[0009] In some embodiments, the semi-flexible pressure roller includes: a rigid mandrel; a composite flexible covering layer covering the circumferential surface of the rigid mandrel; and a multilayer warp and weft yarn fiber mesh reinforcement layer uniformly spaced within the composite flexible covering layer.

[0010] In some implementations, the warp and weft yarn fiber mesh reinforcement layer is a single-layer yarn mesh with multiple layers of warp and weft yarns arranged without gaps.

[0011] In some implementations, the reference radius of the semi-flexible pressure roller is equal to the radius of the rigid reference support roller plus the rated ultimate compression thickness of the composite flexible coating layer.

[0012] In some implementations, the difference between the linear velocity of the rigid reference support roller and the linear velocity of the semi-flexible pressure roller is ≤0.3%.

[0013] In some embodiments, the rigid reference support roller includes: a roller body for carrying the cylindrical member; two connectors respectively connected to both ends of the roller body, the connectors being rotatably mounted on the frame, and one of the two connectors being connected to the first driver.

[0014] In some implementations, the outer diameter of the roller is 1 mm to 2 mm smaller than the inner diameter of the cylindrical member.

[0015] In some embodiments, the cylindrical component correction device further includes: two limiting members detachably disposed on the frame; wherein the roller body is located between the two limiting members, and the distance between the two limiting members matches the length of the roller body, and along the axial direction of the roller body, the projection of the limiting member on the frame at least partially overlaps with the projection of the edge of the roller body on the frame.

[0016] Based on the same inventive concept, this application also provides a method for correcting a cylindrical component. Based on the aforementioned cylindrical component correction device, the method includes the following steps: fitting the cylindrical component onto a rigid reference support roller; activating a first lifting device and a second lifting device, causing a semi-flexible pressure roller to abut against the outer wall of the cylindrical component, applying a pre-tightening pressure to the cylindrical component so that the inner wall of the cylindrical component completely conforms to the circumferential surface of the rigid reference support roller; activating a first driver and a second driver, causing the rigid reference support roller and the semi-flexible pressure roller to rotate synchronously and actively in opposite directions to correct the cylindrical component.

[0017] In some implementations, during the correction of the cylindrical component, the first and second lifters are activated for each complete rotation of the cylindrical component to increase the rolling pressure applied to the cylindrical component by 5% to 10%.

[0018] The beneficial effects of the present invention include at least the following: Since the first driver is mounted on the frame, the rigid reference support roller is connected to the first driver and rotatably mounted on the frame. The first lifter is mounted on the frame, the second lifter is mounted on the frame, and the second driver is mounted on the first lifter. One end of the semi-flexible pressure roller is connected to the second driver, and the other end is connected to the second lifter. The semi-flexible pressure roller is rotatably mounted on the frame. The rigid reference support roller and the semi-flexible pressure roller rotate in opposite directions. The semi-flexible pressure roller is jacked up and down on the frame and located below the rigid reference support roller. Therefore, when the cylindrical part needs to be corrected, the cylindrical part is fitted onto the rigid reference support roller. The first and second lifters are activated, and the semi-flexible pressure roller abuts against the outer wall of the cylindrical part, applying a base pre-tightening pressure to the cylindrical part. This ensures that the inner wall of the cylindrical part completely conforms to the circumference of the rigid reference support roller, eliminating assembly gaps and initial deformation deviations, and constraining the elliptical deformation of the cylindrical part from the root. The first and second drivers are then activated, and the rigid reference support roller and the semi-flexible pressure roller move synchronously towards each other. The rotating mechanism relies on the frictional force of the rigid reference support roller and the semi-flexible pressure roller to drive the cylindrical part to continuously feed circumferentially, thereby completing the full-area rolling and shaping. This achieves the correction of the cylindrical part, ensuring a stable correction reference and good shaping uniformity. It can correct the cylindricity error of the cylindrical part's cross-section and the straightness of the generatrix along the entire length of the cylinder in one operation. The entire shaping process does not require continuous manual force application, significantly reducing the labor intensity of operators and avoiding the instability caused by fatigue from prolonged manual work. This effectively improves production operating conditions. Moreover, compared to the traditional manual localized tapping and uneven force application shaping method, the continuous circumferential feeding of the cylindrical part driven by the frictional force of the rigid reference support roller and the semi-flexible pressure roller can achieve uniform and continuous plastic shaping in the circumferential and full-length directions of the cylinder. It can accurately correct the cylindricity error of the cylindrical part's cross-section and the straightness of the generatrix along the entire length of the cylinder, ensuring the correction accuracy. At the same time, the full-area overall correction of the cylindrical part can be completed in a single clamping, resulting in a simple operation process, high degree of automation, and improved efficiency.

[0019] This application uses a first lifter and a second lifter to adjust the rolling pressure applied to the cylindrical part by the semi-flexible pressure roller, which realizes precise quantitative control of the feeding process, eliminates reliance on manual operation experience, improves the consistency of the calibration accuracy, significantly improves the product yield, effectively ensures the dimensional accuracy and shape uniformity of the cylindrical part, and meets the requirements of high-precision assembly and use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1These are schematic diagrams of the cylindrical component correction device according to some embodiments; Figure 2 for Figure 1 A schematic diagram of the cooperation between the rigid reference support roller and the semi-flexible pressure roller in the middle cylindrical component correction device; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 1 A schematic diagram of the semi-flexible pressure roller in the cylindrical component correction device; Figure 5 for Figure 4 Enlarged diagram of point B in the middle.

[0022] In the attached image: Frame 10; First driver 20; Rigid reference support roller 30, roller body 31, connector 32; First lifter 40; Second driver 50; Semi-flexible pressure roller 60, rigid mandrel 61, composite flexible covering layer 62, warp and weft fiber mesh reinforcing layer 63; Cylindrical component 70; Limiting component 80. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0027] Specific technical solutions will now be described in detail with reference to the accompanying drawings, which are not necessarily drawn to scale. Similar or identical reference numerals may be used to designate the same or similar parts in different figures. The use of similar or identical reference numerals in different figures does not mean that all figures including similar or identical reference numerals constitute a single or the same embodiment. The accompanying drawings illustrate the various embodiments discussed in this application in a generalized, illustrative, and not restrictive manner.

[0028] Combination Figure 1 , Figure 2 and Figure 3 The cylindrical component correction device according to this application embodiment includes: a frame 10, a first driver 20, a rigid reference support roller 30, a first lifter 40, a second lifter (not shown in the figure), a second driver 50, and a semi-flexible pressure roller 60. The first driver 20 is mounted on the frame 10. The rigid reference support roller 30 is connected to the first driver 20 and rotatably mounted on the frame 10. The first lifter 40 is mounted on the frame 10. The second lifter is mounted on the frame 10. The second driver 50 is mounted on the first lifter 40. One end of the semi-flexible pressure roller 60 is connected to the second driver 50, and the other end is connected to the second lifter. The semi-flexible pressure roller 60 is rotatably mounted on the frame 10. The rigid reference support roller 30 and the semi-flexible pressure roller 60 rotate in opposite directions. The semi-flexible pressure roller 60 is rotatably mounted on the frame 10 and located below the rigid reference support roller 30.

[0029] Since the first driver 20 is located on the frame 10, the rigid reference support roller 30 is connected to the first driver 20 and rotatably mounted on the frame 10. The first lifter 40 is located on the frame 10, the second lifter is located on the frame 10, the second driver 50 is located on the first lifter 40, one end of the semi-flexible pressure roller 60 is connected to the second driver 50, and the other end is connected to the second lifter. The semi-flexible pressure roller 60 is rotatably mounted on the frame 10. The rigid reference support roller 30 rotates in the opposite direction to the semi-flexible pressure roller 60. The semi-flexible pressure roller 60 is liftably mounted on the frame 10. The frame 10 is located below the rigid reference support roller 30. Therefore, when the cylindrical component 70 needs to be corrected, the cylindrical component 70 is fitted onto the rigid reference support roller 30, the first lifter 40 and the second lifter are activated, and the semi-flexible pressure roller 60 abuts against the outer wall of the cylindrical component 70, applying a base pre-tightening pressure to the cylindrical component 70 so that the inner wall of the cylindrical component 70 completely conforms to the circumferential surface of the rigid reference support roller 30, eliminating the assembly gap and initial deformation deviation of the cylindrical component 70, and constraining the elliptical deformation of the cylindrical component 70 from the root. The first driver 20 and the second driver 50 are then activated. The rigid reference support roller 30 and the semi-flexible pressure roller 60 rotate synchronously and actively towards each other. Relying on the frictional force of the roller surfaces of the rigid reference support roller 30 and the semi-flexible pressure roller 60, the cylindrical part 70 is continuously fed circumferentially to complete the full-area rolling and shaping, thereby correcting the cylindrical part 70. The correction reference is stable, and the shaping uniformity is good. It can correct the cylindricity error of the cross-section of the cylindrical part 70 and the straightness of the generatrix along the entire length of the cylinder in one go. The entire shaping process does not require continuous manual force application, which greatly reduces the labor intensity of operators and avoids the instability of operation caused by fatigue from long-term manual operation. This method effectively improves production conditions. Moreover, compared to the traditional manual localized tapping and uneven force application correction method, the continuous circumferential feeding of the cylindrical part 70 by the friction of the rigid reference support roller 30 and the semi-flexible pressure roller 60 can achieve uniform and continuous plastic shaping of the cylindrical part in the circumferential and entire length directions. It can accurately correct the cylindricity error of the cross-section of the cylindrical part 70 and the straightness of the generatrix of the entire length of the cylindrical part, ensuring the correction accuracy. At the same time, the entire correction of the cylindrical part 70 can be completed in a single clamping, with a simple operation process, high degree of automation, and improved efficiency.

[0030] This application uses the first lifter 40 and the second lifter to adjust the rolling pressure applied by the semi-flexible pressure roller 60 to the cylindrical part 70, thereby achieving precise quantitative control of the feeding process, eliminating reliance on manual operation experience, improving the consistency of the calibration accuracy, significantly improving the product yield, effectively ensuring the dimensional accuracy and shape uniformity of the cylindrical part 70, and meeting the requirements of high-precision assembly and use.

[0031] Combination Figure 4 and Figure 5In some embodiments, to apply rolling pressure to the cylindrical component 70, the semi-flexible pressure roller 60 includes: a rigid mandrel 61, a composite flexible covering layer 62, and a warp and weft fiber mesh reinforcement layer 63. The composite flexible covering layer 62 covers the circumferential surface of the rigid mandrel 61. The multiple warp and weft fiber mesh reinforcement layers 63 are evenly spaced within the composite flexible covering layer 62. The multiple warp and weft fiber mesh reinforcement layers 63 can serve as a pressure-bearing skeleton. Along the radial direction of the rigid mandrel, the multiple warp and weft fiber mesh reinforcement layers 63 can share the high-pressure load, ensuring that the composite flexible covering layer 62 remains undelaminated, bulged, or permanently compressed after more than 400,000 cycles of rolling by the semi-flexible pressure roller 60, thus guaranteeing the service life of the semi-flexible pressure roller 60.

[0032] In some embodiments, the composite flexible coating layer 62 adapts to slight elastic compression as the weld seam and uneven deformation of the outer surface of the cylindrical component 70 undergoes deformation. It relies on the internal multi-layer warp and weft fiber mesh reinforcement layer 63 to bear high pressure, continuously and uniformly applying pressure to the entire circumference and length of the cylindrical component 70. This avoids high-pressure delamination and permanent deformation of the composite flexible coating layer 62, thus ensuring the service life of the composite flexible coating layer 62.

[0033] In some embodiments, the thickness of the composite flexible overlay layer 62 is 10mm to 20mm, and the material can be oil-resistant and wear-resistant castable polyurethane, with a Shore A hardness value of 78 to 92. The warp and weft fiber mesh reinforcing layer 63 and the composite flexible overlay layer 62 can be integrally vulcanized, so that the structure of the semi-flexible pressure roller 60 can be a multi-layer load-bearing structure similar to that of a radial automotive tire.

[0034] In some embodiments, during the synchronous active rotation of the rigid reference support roller 30 and the semi-flexible pressure roller 60 towards each other, the composite flexible covering layer 62 generates elastic compression deformation within the rated range. The deformation of the locally protruding deformation area of ​​the cylindrical part 70 is greater than that of the concave area. The excessive local compression of the composite flexible covering layer 62 is suppressed by the warp and weft fiber mesh reinforcement layer 63, thus avoiding plastic collapse of the thin-walled area of ​​the cylindrical part 70.

[0035] In some embodiments, the warp and weft fiber mesh reinforcement layer 63 is a single layer of fiber mesh with multiple layers of interlaced warp and weft fibers to ensure compressive strength and improve the service life of the semi-flexible pressure roller 60. The thickness of the single layer of fiber mesh can be 0.4 mm to 0.9 mm.

[0036] In some embodiments, the reference radius of the semi-flexible pressure roller 60 is equal to the radius of the rigid reference support roller 30 plus the rated ultimate compression thickness of the composite flexible coating layer 62. This ensures that the reference radius of the semi-flexible pressure roller 60 meets the quantitative constraint relationship, precisely controls the compression allowance of the semi-flexible pressure roller 60, and guarantees that the cylindrical component 70 fully and completely fits the semi-flexible pressure roller 60 and the rigid reference support roller 30 without any local correction blind spots, thus ensuring correction accuracy.

[0037] In some embodiments, the difference between the linear velocity of the rigid reference support roller 30 and the linear velocity of the semi-flexible pressure roller 60 is ≤0.3%, so that there is no relative sliding friction between the cylindrical part 70 and the rigid reference support roller 30 and the semi-flexible pressure roller 60, thereby eliminating scratches on the outer wall of the cylindrical part 70 and ensuring the safety of the cylindrical part 70.

[0038] In some configurations, for supporting the cylindrical component 70, the rigid reference support roller 30 includes a roller body 31 and connecting members 32. The roller body 31 supports the cylindrical component 70. Two connecting members 32 are respectively connected to both ends of the roller body 31, and the connecting members 32 are rotatably mounted on the frame 10. One of the two connecting members 32 is connected to a first driver 20. Exemplarily, the length of the roller body 31 is greater than or equal to the length of the cylindrical component 70.

[0039] In some embodiments, the roller body 31 is horizontally rotatably mounted in the middle of the frame 10. The roller body 31 is integrally formed from tempered and quenched alloy steel. The outer circle of the roller body 31 is ultra-precision ground, and the cylindricity tolerance of the outer circle of the roller body 31 is ≤0.01mm. The roller surface is quenched, and the surface roughness Ra is ≤0.8μm, so that the roller body 31 forms a rigid and high-precision outer circle. After pre-pressing, the cylindrical part 70 can completely fit the rigid and high-precision outer circle, thereby constraining the elliptical deformation of the cylindrical part 70 from the source and ensuring the correction accuracy.

[0040] In some embodiments, the length of the composite flexible covering layer 62 is matched with the length of the roller 31. Along the height direction of the frame 10, the projection of the composite flexible covering layer 62 on the frame 10 overlaps with the projection of the roller 31 on the frame 10, so as to achieve full-area rolling and shaping of the cylindrical part 70 and to correct the cylindrical part 70.

[0041] In some embodiments, the outer diameter of the roller body 31 is 1mm to 2mm smaller than the inner diameter of the cylindrical part 70, which facilitates the assembly of the cylindrical part 70.

[0042] During the compression process of the cylindrical part 70, the cylindrical part 70 will undergo elastic deformation and plastic deformation. After the compression of the cylindrical part 70 is stopped, the cylindrical part 70 will rebound. The outer diameter of the roller body 31 is 1mm to 2mm smaller than the inner diameter of the cylindrical part 70, so that there is a certain interference between the roller body 31 and the cylindrical part 70, ensuring that the accuracy of the cylindrical part 70 after rebound is within the tolerance range.

[0043] In some embodiments, the cylindrical component correction device further includes: limiting members 80. Two limiting members 80 are detachably mounted on the frame 10. The roller body 31 is located between the two limiting members 80, and the distance between the two limiting members 80 matches the length of the roller body 31. Along the axial direction of the roller body 31, the projection of the limiting member 80 on the frame 10 at least partially overlaps with the projection of the edge of the roller body 31 on the frame 10. Along the circumferential direction of the roller body 31, the limiting member 70 can be offset during the rolling process, so that the cylindrical component 70 is always on the roller body 31, ensuring that the entire length of the cylindrical component 70 is synchronously compressed and corrected, and preventing the cylindrical component 70 from impacting the frame 10, thus ensuring the safety of the cylindrical component 70 and the frame 10.

[0044] Based on the same inventive concept, this application also provides a method for correcting a cylindrical component 70. Based on the aforementioned method for correcting a cylindrical component 70, the method includes the following steps: Step S1: Fit the cylindrical part 70 onto the rigid reference support roller 30.

[0045] Step S2: Activate the first lifter 40 and the second lifter. The semi-flexible pressure roller 60 abuts against the outer wall of the cylindrical part 70, applying a base pre-tightening pressure to the cylindrical part 70 so that the inner wall of the cylindrical part 70 completely fits the circumference of the rigid reference support roller 30.

[0046] After the semi-flexible pressure roller 60 applies base pre-tightening pressure to the cylindrical part 70, the cylindrical part 70 undergoes slight deformation under pressure along the radial direction of the semi-flexible pressure roller 60. The inner wall of the cylindrical part 70 completely fits the high-precision outer circle of the sleeve-type rigid reference support roller 30, eliminating the initial annular gap between the cylindrical part 70 and the rigid roller, and establishing a unified circular shaping reference.

[0047] Step S3: Start the first driver 20 and the second driver 50. The rigid reference support roller 30 and the semi-flexible pressure roller 60 rotate synchronously and actively in opposite directions to correct the cylindrical part 70.

[0048] In some embodiments, after the cylindrical component 70 has been corrected, the limiting component 80 is removed, and the cylindrical component 70 is taken off the rigid reference support roller 30. A high-precision cylindricity tester and a generatrix straightness tester are used to check the form and position tolerances of the cylindrical component 70. If the cylindricity or generatrix straightness exceeds the tolerance, the cylindrical component 70 is remounted onto the rigid reference support roller 30, the base preload pressure is increased, and the number of reciprocating rolling passes is increased to complete the secondary correction.

[0049] In some embodiments, during the correction of the cylindrical component 70, the first lifter 40 and the second lifter operate for each complete rotation of the cylindrical component 70 to raise the flexible pressure roller 60 to apply a rolling pressure of 5% to 10% to the cylindrical component 70, gradually releasing the residual stress from welding heat, and significantly reducing the springback of the cylindrical component 70 after correction, so as to ensure the correction accuracy of the cylindrical component 70.

[0050] In some embodiments, in order to achieve the correction of the cylindrical component 70, each cylindrical component 70 needs to be rolled back and forth 4 to 9 times, that is, the cylindrical component 70 needs to be rotated 4 to 9 times.

[0051] In some embodiments, the initial thickness of the composite flexible coating layer 62 of the flexible pressure roller 60 is T, and the thickness of the composite flexible coating layer 62 is 0.2T~0.5T when the cylindrical part 70 is rolled for the last time.

[0052] In some embodiments, aluminum alloy sheet or stainless steel sheet is selected and rolled into a cylindrical blank by a three-roll plate rolling machine. The cylindrical body is then sealed and formed using a longitudinal seam roll welding process. Weld beads and burrs are removed by grinding, and oxide scale and local protruding burrs on the inner and outer walls of the cylinder are removed by sandpaper polishing to obtain a completely sealed cylindrical part 70.

[0053] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0054] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0056] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0057] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A cylindrical component correction device, characterized in that, include: frame; A first driver is located on the rack; A rigid reference support roller is connected to the first driver and is rotatably mounted on the frame; A first lifting device is provided on the frame; The second lifting device is installed on the frame; A second drive is located at the first lifter; A semi-flexible pressure roller, one end of which is connected to the second driver and the other end of which is connected to the second lifter, is rotatably mounted on the frame; The rigid reference support roller rotates in the opposite direction to the semi-flexible pressure roller. The semi-flexible pressure roller is vertically mounted on the frame and located below the rigid reference support roller.

2. The cylindrical component correction device according to claim 1, characterized in that, The semi-flexible pressure roller includes: Rigid mandrel; A composite flexible coating layer is applied to the circumferential surface of the rigid mandrel; A multi-layered warp and weft fiber mesh reinforcement layer is evenly spaced within the composite flexible covering layer.

3. The cylindrical component correction device according to claim 2, characterized in that, The reinforcing layer of the warp and weft yarn fiber mesh is a single-layer yarn mesh with multiple layers of warp and weft yarns arranged without gaps.

4. The cylindrical component correction device according to any one of claims 1-3, characterized in that, The reference radius of the semi-flexible pressure roller is equal to the radius of the rigid reference support roller plus the rated ultimate compression thickness of the composite flexible coating layer.

5. The cylindrical component correction device according to any one of claims 1-3, characterized in that, The difference between the linear velocity of the rigid reference support roller and the linear velocity of the semi-flexible pressure roller is ≤0.3%.

6. The cylindrical component correction device according to any one of claims 1-3, characterized in that, The rigid reference support roller includes: The roller body is used to support the cylindrical component; Two connectors are respectively connected to both ends of the roller body. The connectors are rotatably mounted on the frame. One of the two connectors is connected to the first driver.

7. The cylindrical component correction device according to claim 6, characterized in that, The outer diameter of the roller is 1mm to 2mm smaller than the inner diameter of the cylindrical part.

8. The cylindrical component correction device according to claim 6, characterized in that, The cylindrical component straightening device further includes: Two limiting components are detachably mounted on the frame; The roller is located between the two limiting members, and the distance between the two limiting members matches the length of the roller. Along the axial direction of the roller, the projection of the limiting member on the frame at least partially overlaps with the projection of the edge of the roller on the frame.

9. A method for correcting cylindrical components, characterized in that, Based on the cylindrical component correction device according to any one of claims 1-8, the cylindrical component correction method includes the following steps: The cylindrical component is fitted onto the rigid reference support roller; Activate the first and second lifting devices, and the semi-flexible pressure roller abuts against the outer wall of the cylindrical component, applying a base pre-tightening pressure to the cylindrical component so that the inner wall of the cylindrical component completely conforms to the circumferential surface of the rigid reference support roller. The first and second drives are activated, and the rigid reference support roller and the semi-flexible pressure roller rotate synchronously and actively in opposite directions to correct the cylindrical component.

10. The method for correcting cylindrical parts according to claim 9, characterized in that, During the process of correcting the cylindrical component, the first and second lifting devices are activated for each complete rotation of the cylindrical component to increase the rolling pressure applied to the cylindrical component by 5% to 10%.

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