A flange sealing line processing device and method

Abstract

This invention proposes a flange sealing line processing device and method. It includes a positioning assembly, a rotating assembly, and a cutting tool fixture. The positioning assembly includes a flange and a vertical shaft. Bolt holes are provided on the flange for positioning and connecting flanges of different diameters. The vertical shaft is mounted at the center of the flange. The rotating assembly includes a rotating shaft and a radius support plate. The rotating shaft is fitted onto the vertical shaft. The radius support plate is connected to the side of the rotating shaft and has an arc-shaped groove, allowing it to rotate around the vertical shaft along with the rotating shaft. The cutting tool fixture includes a cutting tool holder and a cutting tool. The cutting tool is mounted on the cutting tool holder via a locking screw. The cutting tool holder is screwed to the center of the radius support plate's diameter via a fastening bolt assembly. The screwed position between the cutting tool holder and the radius support plate is adjusted by sliding the adjusting bolt assembly along the arc-shaped groove. This invention uses a flange with bolt holes for positioning, and the adjustable cutting tool fixture is connected to the radius support plate. It is suitable for use as a flange sealing line processing device and method.

Description

Technical Field

[0001] This invention provides a device for reprocessing corroded large-diameter flange sealing lines, mainly used in the pipeline field, where large-diameter flange sealing lines suffer severe corrosion and require reprocessing. Specifically, it is a flange sealing line processing device and method. Background Technology

[0002] When machining the sealing line of a large-diameter steel flange with a diameter of DN100mm or more on a lathe, the machining process is not complicated and the cutting is easy. However, if the machined large-diameter steel flange is used for a long time in a humid environment or with seawater or other corrosive fluids, the sealing line of the flange will suffer severe corrosion, resulting in defects in the sealing line and making it impossible to seal the internal fluid. Therefore, the sealing line needs to be re-machined.

[0003] If a large-diameter steel flange is welded to the hull, system, or equipment surface and cannot be removed for machining the sealing line, the sealing line can only be machined on-site. Since there are no suitable mechanical tools for machining the watermark line of large flanges, the construction process involves first marking the line and then using a smaller cutting disc to cut the sealing line. If the flange is in a confined space, the operation is even more difficult. This method of operation takes a long time and the sealing line width is inconsistent, which can easily cause defects, increase labor intensity, and reduce work efficiency.

[0004] Therefore, there is an urgent need for a processing device for large-diameter flange sealing lines that are corroded. Summary of the Invention

[0005] To address the shortcomings of existing technologies and the problem of reprocessing severely corroded large-diameter flange sealing lines, this invention provides a flange sealing line processing device and method. The device is mounted on the corroded flange to be processed via a flange plate. The position of the cutting tool holder on the radius support plate is adjusted to coincide with the corroded flange sealing line, and then locked in place for cutting the flange sealing line, thus solving the technical problem of reprocessing corroded flange sealing lines.

[0006] The solution adopted by this invention to solve the technical problem is:

[0007] A flange sealing line processing device includes a positioning assembly, a rotating assembly, and a cutting tool clamp;

[0008] The positioning assembly includes a flange and a vertical shaft; bolt holes are provided on the flange for positioning and connection on flanges of different diameters, and a vertical shaft is assembled at the center of the flange;

[0009] The rotating assembly includes a rotating shaft and a radius support plate; the rotating shaft is mounted on a vertical shaft; a radius support plate is connected to the side of the rotating shaft, and an arc groove is provided on the radius support plate, which can rotate around the vertical shaft along with the rotating shaft;

[0010] The engraving tool fixture includes an engraving tool holder and an engraving tool; the engraving tool is assembled on the engraving tool holder by a locking set screw, and the engraving tool holder is screwed to the center of the radius support plate diameter by a fastening bolt assembly; the screwed position between the engraving tool holder and the radius support plate is adjusted by sliding the adjusting bolt assembly along the arc groove.

[0011] To further address the technical problem this invention aims to solve, the present invention provides a flange sealing line processing method comprising the following steps:

[0012] Step 1. Process a conical wooden wedge, insert its conical end into the flange, find the center point of the flange through the flange diameter, and draw two circular water ripple sealing lines with the center point as the center.

[0013] Step 2. Install the flange of the positioning component onto the corrosion flange to be scribed. Loosen the fastening bolt assembly and adjusting bolt assembly on the scribing tool holder. Adjust the vertical point of the scribing tool tip to coincide with the sealing line of the flange to be processed. Adjust the scribing tool tip to be the same as the travel trajectory of the scribing tool holder. At the same time, tighten the locking screw.

[0014] Step 3. Hold the shaft with one hand and rotate the engraving tool holder with the other hand to engrave 2 / 3 of the sealing line on the drawn flange sealing line. When processing the remaining 1 / 3 of the sealing line, the sealing line processing device needs to be removed and installed at the position of the flange sealing line to be processed and corroded, and the construction work is carried out according to the previous procedures.

[0015] The invention offers positive results in addressing the technical challenge of re-processing the sealing lines of large-diameter corroded flanges. It employs a flange with bolt holes for positioning, facilitating installation on various large-diameter flange models. An adjustable scribing tool fixture connects to a radius support plate, overcoming the difficulty of re-processing corroded sealing lines on large-diameter flanges. This processing device is not limited by confined spaces, the adjustment process is simple, the scribing accuracy is controllable, and the operation is quick, reducing labor intensity during processing. It is suitable for re-processing sealing lines on flanges with various types of corrosion. It features wide applicability and ease of operation, making it suitable as a flange sealing line processing device and method. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the technical solutions in 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The description of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0017] Figure 1 This is the southwest isometric view of this embodiment;

[0018] Figure 2 This is the northwest isometric view of this embodiment;

[0019] Figure 3 This is the front view of this embodiment;

[0020] Figure 4 This is a side view of this embodiment;

[0021] Figure 5 This is a top view of this embodiment;

[0022] Figure 6 This is a bottom view of this embodiment;

[0023] Figure 7 This is a cross-sectional view AA of this embodiment;

[0024] Figure 8 This is a sectional perspective view (AA) of this embodiment;

[0025] Figure 9 This is a sectional perspective view of BB in this embodiment.

[0026] In the picture:

[0027] 100. Positioning component,

[0028] 110. Flange, 111. Bolt holes,

[0029] 120. Vertical axis;

[0030] 200. Rotating assembly,

[0031] 210. Shaft,

[0032] 220. Radius support plate; 221. Circular arc groove;

[0033] 300. Engraving tool clamp,

[0034] 310. Carving knife holder,

[0035] 320. Carving knife,

[0036] 330. Tighten the set screw.

[0037] 340. Fastening bolt assembly,

[0038] 350. Adjusting bolt assembly. Implementation

[0039] 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 some embodiments of the present invention, and not all embodiments. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0041] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0042] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0043] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0044] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0045] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to 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 the embodiments of this application.

[0046] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0047] As shown in the figure, a flange sealing line processing device includes a positioning assembly 100, a rotating assembly 200, and a cutting tool clamp 300.

[0048] The positioning assembly 100 includes a flange 110 and a vertical shaft 120; bolt holes 111 are provided on the flange 110 for positioning and connecting flanges of different diameters, and the vertical shaft 120 is assembled at the center of the flange 110.

[0049] The rotating assembly 200 includes a rotating shaft 210 and a radius support plate 220; the rotating shaft 210 is a bushing structure and is fitted onto the vertical shaft 120; the radius support plate 220 is connected to the side of the rotating shaft 210, and the radius support plate 220 is provided with an arc groove 221, so that the radius support plate 220 can rotate around the vertical shaft 120 along with the rotating shaft 210.

[0050] The engraving tool fixture 300 includes an engraving tool holder 310 and an engraving tool 320. The engraving tool 320 is mounted on the engraving tool holder 310 via a locking set screw 330. The engraving tool holder 310 is screwed to the center of the radius support plate 220 via a fastening bolt assembly 340, thereby locking and fixing the engraving tool holder 310 and the radius support plate 220. By adjusting the bolt assembly 350 sliding along the arc groove 221, the screwed position of the engraving tool holder 310 and the radius support plate 220 is adjusted so that when the engraving tool 320 rotates around the vertical shaft 120, the distance between the engraving tool 320 and the vertical shaft 120 is equal to the radius of the flange, thereby enabling the processing of the sealing line.

[0051] To ensure the stability of the structure of the present invention, the flange 110 is fan-shaped, and the bolt holes 111 on it are elliptical through holes for bolting with flanges of different diameters, and have an adjustable angle. An inner hole is provided at the center of the fan-shaped circle of the flange 110 for assembling the vertical shaft 120, which is perpendicular to the center of the flange on the surface of the flange 110.

[0052] To further ensure the stability of the structure of the present invention, the radius support plate 220 is a semi-circular structure with a through hole at the center of its diameter for mounting the fastening bolt assembly 340. An arc-shaped groove 221 is provided on the radius support plate 220 for mounting the adjusting bolt assembly 350, facilitating tightening and loosening. In this embodiment, the radius support plate 220 is welded to the rotating shaft 210 and fixed in a cantilever manner, and they are perpendicular to each other.

[0053] To optimize the structure of the present invention, the engraving tool holder 310 is L-shaped, with bolt holes arranged near the end of the radius support plate 220 for mounting the fastening bolt assembly 340 and the adjusting bolt assembly 350, so that the engraving tool holder 310 is connected to the radius support plate 220; the end of the engraving tool holder 310 away from the radius support plate 220 has a through groove for mounting the engraving tool 320, and a locking screw 330 is provided on its side to facilitate the disassembly and fixing of the engraving tool 320.

[0054] As a conventional technical choice, in this embodiment, the locking set screws 330 are arranged in an upper and lower array to lock the engraving knife 320 and prevent vibration during the processing of the sealing line.

[0055] Preferably, the vertical shaft 120 is a stepped shaft, with its lower part connected and fixed to the flange 110 and its upper part embedded in the rotating shaft 210. The stepped shaft structure reduces the contact area between the vertical shaft 120 and the rotating shaft 210, allowing the rotating shaft 210 to rotate freely.

[0056] Among them, the rotating shaft 210 is a hollow bushing, and the vertical shaft 120 is housed inside the rotating shaft 210 to form a stable rotation center.

[0057] The working process of this embodiment:

[0058] 1) Grind the corroded large-diameter flange surface smooth.

[0059] 2) Process conical wooden wedges, inserting the conical end into the flange, with the outer plane flush with the flange surface.

[0060] 3) Use the scribing method to find the center point of the conical wooden wedge, and use a compass to draw two circular sealing lines on the flange.

[0061] 4) The flange 110 of the positioning assembly 100 is installed on the flange to be processed and corroded, and the vertical shaft 120 is located at the center of the corroded flange.

[0062] 5) Loosen the fastening bolt assembly 340 and adjusting bolt assembly 350 on the engraving tool holder 310, adjust the tip of the engraving tool 320 to coincide with the flange sealing line to be processed and corroded, and then tighten the fastening bolt assembly 340 and adjusting bolt assembly 350.

[0063] 6) Loosen the locking screw 330 of the engraving knife 320, adjust the tip of the engraving knife 320 so that its travel path is the same as the flange sealing line to be processed and corroded, and then tighten the locking screw 330.

[0064] 7) The operator holds the shaft 210 with one hand and rotates the engraving tool holder 310 with the other hand to carry out the work on the flange sealing line to be processed and corroded, drawing 2 / 3 of the sealing line.

[0065] 8) Remove the sealing line processing device and install it on the position where the flange sealing line to be processed and corroded has been drawn, and process the remaining 1 / 3 of the sealing line.

[0066] 9) The second circular flange sealing line shall be constructed in accordance with the previous procedures.

[0067] The working principle of this embodiment:

[0068] 1. Process a conical wooden wedge, insert its conical end into the flange, find the center point of the flange through the flange diameter, and draw two circular water ripple sealing lines with the center point as the center.

[0069] 2. Install the flange 110 of the positioning assembly 100 on the corrosion flange to be scribed. Loosen the fastening bolt assembly 340 and adjusting bolt assembly 350 on the scribing tool holder 310. Adjust the tip of the scribing tool 320 to coincide with the sealing line of the flange to be processed. Adjust the tip of the scribing tool 320 to be the same as the travel trajectory of the scribing tool holder 310. At the same time, tighten the locking screw 330.

[0070] 3. Hold the shaft 210 with one hand and rotate the engraving tool holder 310 with the other hand to perform the work on the drawn flange sealing line, engraving 2 / 3 of the sealing line; when processing the remaining 1 / 3 of the sealing line, the sealing line processing device needs to be removed and installed at the position of the flange sealing line to be processed and corroded, and the work should be carried out according to the previous procedure.

[0071] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for processing a flange sealing line, characterized in that: application A flange sealing line processing device, comprising a positioning assembly (100), a rotating assembly (200), and a cutting tool clamp (300). The positioning assembly (100) includes a flange (110) and a vertical shaft (120); bolt holes (111) are provided on the flange (110) for positioning and connecting flanges of different diameters, and the vertical shaft (120) is assembled at the center of the flange (110). The rotating assembly (200) includes a rotating shaft (210) and a radius support plate (220); the rotating shaft (210) is mounted on the vertical shaft (120); the radius support plate (220) is connected to the side of the rotating shaft (210), and the radius support plate (220) is provided with an arc groove (221), and the radius support plate (220) can rotate around the vertical shaft (120) along with the rotating shaft (210); The engraving tool holder (300) includes an engraving tool holder (310) and an engraving tool (320); the engraving tool (320) is mounted on the engraving tool holder (310) by a locking set screw (330), and the engraving tool holder (310) is screwed to the center of the diameter of the radius support plate (220) by a fastening bolt assembly (340); and the screwed position of the engraving tool holder (310) and the radius support plate (220) is adjusted by sliding the adjusting bolt assembly (350) along the arc groove (221); Includes the following steps: Step 1. Process a conical wooden wedge. Insert the conical end of the wooden wedge into the flange. Find the center point of the flange by using the flange diameter. Draw two circular water ripple sealing lines with the center point as the center. Step 2. Install the flange (110) of the positioning assembly (100) on the corrosion flange to be scribed. Loosen the fastening bolt assembly (340) and the adjusting bolt assembly (350) on the scribing holder (310). Adjust the tip of the scribing knife (320) to coincide with the sealing line of the flange to be processed. Adjust the tip of the scribing knife (320) to be the same as the travel trajectory of the scribing holder (310). At the same time, tighten the locking screw (330). Step 3. Hold the rotating shaft (210) with one hand and rotate the engraving tool holder (310) with the other hand to carry out the work on the drawn flange sealing line, and engrave 2 / 3 of the sealing line; when processing the remaining 1 / 3 of the sealing line, a flange sealing line processing device needs to be removed and installed at the position of the flange sealing line to be processed and corroded, and the work is carried out according to the previous procedure. The second circular flange sealing line was also constructed according to the previous procedures.

2. The flange sealing line processing method according to claim 1, characterized in that: The flange (110) is fan-shaped, and the bolt hole (111) is an elliptical through hole for bolting to flanges of different diameters; an inner hole is provided on the center of the fan-shaped circle of the flange (110) for assembling the vertical shaft (120), and the vertical shaft (120) is perpendicular to the center of the flange on the surface of the flange (110).

3. The flange sealing line processing method according to claim 1, characterized in that: The radius support plate (220) has a semi-circular structure. The center of the diameter of the radius support plate (220) is provided with a through hole for mounting the fastening bolt assembly (340). The radius support plate (220) is provided with an arc groove (221) for mounting the adjusting bolt assembly (350) to facilitate locking and loosening. The radius support plate (220) is welded to the rotating shaft (210) and fixed in a cantilever manner, and is perpendicular to each other.

4. The flange sealing line processing method according to claim 1, characterized in that: The engraving tool holder (310) is L-shaped, with bolt holes arranged near the end of the radius support plate (220) for assembling the fastening bolt assembly (340) and the adjusting bolt assembly (350), so that the engraving tool holder (310) is connected to the radius support plate (220); the end of the engraving tool holder (310) away from the radius support plate (220) has a through groove for assembling the engraving tool (320), and the locking set screw (330) is provided on the side of the engraving tool holder (310).

5. A method for processing a flange sealing line according to claim 1, characterized in that: The locking set screws (330) are arranged in an upper and lower array.

6. A method for processing a flange sealing line according to claim 1, characterized in that: The vertical shaft (120) is a stepped shaft, with its lower part connected and fixed to the flange (110), and its upper part embedded in the rotating shaft (210).

7. A method for processing a flange sealing line according to claim 1, characterized in that: The rotating shaft (210) is a hollow bushing, and the vertical shaft (120) is housed inside the rotating shaft (210) to form a stable rotating center.

8. A method for processing a flange sealing line according to claim 1, characterized in that: Step 1 includes: 1) Grind the corroded surface of the large-diameter flange smooth; 2) Process conical wooden wedges, the conical end of which is inserted into the flange, with its outer plane flush with the flange surface; 3) Use the scribing method to find the center point of the conical wooden wedge, and use a compass to draw two circular sealing lines on the flange.

9. A method for processing a flange sealing line according to claim 1, characterized in that: Step 2 includes: 1) The flange (110) of the positioning assembly (100) is mounted on the flange to be corroded, and the vertical shaft (120) is located at the center of the corroded flange; 2) Loosen the fastening bolt assembly (340) and the adjusting bolt assembly (350) on the engraving tool holder (310), adjust the tip of the engraving tool (320) to coincide with the flange sealing line to be processed and corroded, and then tighten the fastening bolt assembly (340) and the adjusting bolt assembly (350). 3) Loosen the locking screw (330) of the engraving knife (320), adjust the tip of the engraving knife (320) so that the trajectory of the engraving knife (320) is the same as the flange sealing line to be processed and corroded, and then tighten the locking screw (330).

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