A butt welding flange, feeding, drilling and turning integrated equipment and processing method

Abstract

The application discloses a butt welding flange, belongs to the technical field of flanges, and relates to a butt welding flange which comprises a mounting disc, a connecting pipe and a welded pipe, a plurality of mounting holes are formed in the mounting disc, a first sealing groove located outside the mounting holes and a second sealing groove located inside the mounting holes are formed on the side of the mounting disc away from the connecting pipe, a first sealing element is arranged in the first sealing groove, and a second sealing element is arranged in the second sealing groove; when two butt welding flanges are butted, the abutting surfaces between the two first sealing elements form a sealing surface, the abutting surfaces between the two butt welding flanges form a bearing surface, the sealing surface and the bearing surface are at least partially non-parallel, the two edges of the sealing surface are arranged in a staggered mode with the bearing surface, and the two edges of the sealing surface are located on the upper and lower sides of the bearing surface, so that the difficulty of fluid passing is increased. The application further discloses a feeding, drilling and turning integrated equipment for machining the butt welding flange. The application further discloses a machining method for machining the butt welding flange.

Description

Technical Field

[0001] This invention relates to the field of flange technology, and in particular to an integrated equipment and method for feeding, drilling and turning of butt-welding flanges. Background Technology

[0002] Welding flanges are pipe fittings used for connecting pipes. They are usually made of materials such as stainless steel, carbon steel, and alloy steel. They have a round or square shape with a hole in the middle to install bolts and gaskets, connecting two pipes or valves to achieve sealing and fixing of the pipeline system. They are widely used in industries such as chemical, petroleum, natural gas, construction, and pharmaceutical.

[0003] In existing technology, a sealing groove is provided between two weld neck flanges, and a sealing element is installed in the sealing groove. However, the two sealing elements are positioned opposite each other, which can achieve a sealing effect between the two weld neck flanges. However, because the two sealing elements are positioned opposite each other, the contact area between the two sealing elements is small, resulting in poor sealing effect. Summary of the Invention

[0004] Therefore, it is necessary to provide a welding flange with good sealing performance;

[0005] It is also necessary to provide an integrated feeding, drilling, and turning equipment for processing the aforementioned butt-welding flanges;

[0006] It is even more necessary to provide a processing method for the above-mentioned welding flange.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: a welding flange, comprising a mounting plate, a connecting pipe, and a welding pipe. The mounting plate has multiple mounting holes. On the side of the mounting plate away from the connecting pipe, a first sealing groove is located outside the mounting holes, and a second sealing groove is located inside the mounting holes. A first sealing element is installed in the first sealing groove, and a second sealing element is installed in the second sealing groove. When two welding flanges are joined, the contact surfaces between the two first sealing elements form a sealing surface, and the contact surfaces between the two welding flanges form a supporting surface. The sealing surface and the supporting surface are at least partially non-parallel. The two edges of the sealing surface are offset from the supporting surface, and the two edges of the sealing surface are located on the upper and lower sides of the supporting surface. The welding pipe has two opposing positioning holes.

[0008] Furthermore, the sealing surface includes a first protruding surface, a stepped surface, and a second protruding surface. The first protruding surface and the second protruding surface are offset from each other by the stepped surface. The first protruding surface is offset from the second sealing surface, and the second protruding surface is offset from the second sealing surface.

[0009] Furthermore, when the two welding flanges are joined together, the first protruding surface is located below the abutting surface, and the distance between the first protruding surface and the abutting surface is L1; the second protruding surface is located above the abutting surface, and the distance between the second protruding surface and the abutting surface is L2, where L1=L2.

[0010] Furthermore, the center surface of the step surface is coplanar with the abutting surface.

[0011] Furthermore, the first seal has the same structure as the second seal.

[0012] Furthermore, when the two weld neck flanges are joined together, the first protruding surfaces and the second protruding surfaces on the two first seals are arranged in a centrally symmetrical manner about the stepped surface.

[0013] An integrated feeding, drilling, and turning equipment is disclosed. This equipment is used to process the aforementioned weld neck flange. The equipment includes a machine base and a feeding assembly, a fixing mechanism, a drilling mechanism, and a turning assembly mounted on the machine base. The feeding assembly is used to feed the weld neck flange and includes a base mounted on the machine base, a feeding component inclined on the base, a conveyor rotatably mounted at one end of the feeding component, a fixing frame mounted on the machine base, and a feeding component mounted on the fixing frame. The fixing mechanism is used to fix and rotate the weld neck flange. The drilling mechanism is used to drill holes in the weld neck flange. The turning assembly is used to turn the weld neck flange.

[0014] Furthermore, the feeding component is provided with an inlet end and an outlet end, the inlet end being higher than the outlet end. The conveying component is provided with a conveying groove, the feeding component being positioned opposite to the conveying groove and the fixing mechanism. A support block that cooperates with the welded pipe is provided in the conveying groove. The upper surface of the support block has an arc-shaped groove structure, and the upper surface of the support block is in contact with the welded pipe.

[0015] Furthermore, the upper surface of the support block is recessed downward to form a receiving groove, and a magnet is installed in the receiving groove.

[0016] Furthermore, the fixing mechanism includes a rotating seat disposed on the machine base, a pusher disposed on the rotating seat, a connecting block connected to the protruding end of the pusher, a rotating shaft rotatably connected to the connecting block, a fixing member disposed at the end of the rotating shaft, and a rotating assembly for driving the rotating shaft to rotate. The fixing member is positioned opposite to the conveying groove and is used to fix the butt-welding flange.

[0017] A method for processing a welding flange, the method being used for the aforementioned welding flange, the method comprising the following steps:

[0018] Step S1: Unload the material and place the forged welding flange in the appropriate position;

[0019] Step S2: Feeding and fixing: The forged butt-welding flange is automatically fed and fixed.

[0020] Step S3: Rotate for alignment. Rotate the fixed welding flange 180° so that the welding flange is aligned with the drilling machine.

[0021] Step S4: Drilling. Use a drilling machine to drill the mounting holes and positioning holes of the welding flange.

[0022] Step S5: Rotate for alignment, continue to rotate the welding flange by 90° so that the welding flange is aligned with the turning device;

[0023] Step S6: Turning, the turning device is used to turn the weld flange.

[0024] The beneficial effects of the present invention are as follows: The welding flange provided by the present invention, by installing a first sealing element in a first sealing groove and a second sealing element in a second sealing groove, forms a sealing surface between the two first sealing elements when the two welding flanges are joined, and forms a supporting surface between the two welding flanges. The sealing surface and the supporting surface are at least partially non-parallel, and the two edges of the sealing surface are offset from the supporting surface, and the two edges of the sealing surface are located on the upper and lower sides of the supporting surface. This increases the contact area between the two welding flanges, making it more difficult for fluid to pass through, thereby improving the sealing effect between the two welding flanges. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a schematic diagram of the welding flange of the present invention;

[0027] Figure 2 yes Figure 1 The diagram shows a structural schematic of the welding flange from another angle.

[0028] Figure 3 yes Figure 1 A schematic diagram of the structure of the welding flange at another angle is shown;

[0029] Figure 4 yes Figure 1 The diagram shows the installation of the welding flange.

[0030] Figure 5 yes Figure 4 The cross-sectional view along AA in the weld neck flange shown.

[0031] Figure 6 yes Figure 5 A magnified view of a portion of point B in the weld neck flange shown.

[0032] Figure 7 This is a schematic diagram of the integrated feeding, drilling, and turning equipment of the present invention;

[0033] Figure 8 yes Figure 7 A magnified view of point C in the integrated feeding, drilling and turning equipment shown;

[0034] Figure 9 yes Figure 7 A schematic diagram of the integrated feeding, drilling, and turning equipment from another angle;

[0035] Figure 10 yes Figure 7 The cross-sectional view of the welding flange and the feeding component in the integrated feeding, drilling and turning equipment shown.

[0036] Figure 11 yes Figure 7 The cross-sectional view of the welding flange and the transfer component in the integrated feeding, drilling and turning equipment shown.

[0037] Figure 12 This is a flowchart of the processing method for the welding flange of the present invention.

[0038] The component names and their numbers in the figure are as follows: 1. Mounting plate; 10. Connecting cavity; 11. Mounting hole; 12. First sealing groove; 120. First seal; 13. Second sealing groove; 130. Second seal; 14. Sealing surface; 141. First protruding surface; 142. Stepped surface; 143. Second protruding surface; 15. Supporting surface; 2. Connecting pipe; 3. Welded pipe; 31. Positioning hole; 4. Machine base; 5. Feeding assembly; 51. Base; 52. Feeding component; 520. Guide groove; 521. Feeding end; 522. Discharge end; 523. Upper baffle; 524. Lower baffle; 525. Support rod; 53. Conveying component; 531. Conveying groove; 530. Support block; 54. Feeding motor; 55. Fixing frame; 56. Feeding component 6. Fixing mechanism; 61. Rotary motor; 62. Rotary seat; 63. Pushing component; 64. Connecting block; 641. Bearing; 642. Limiting rod; 65. Rotating shaft; 650. Groove; 651. Slide groove; 66. Fixing component; 67. Rotating assembly; 671. Limiting seat; 670. Limiting groove; 672. Motor; 673. Driving gear; 674. Driven gear; 7. Drilling mechanism; 71. Support frame; 710. Guide rail; 72. Moving assembly; 720. Guide block; 721. Rotary motor; 722. Drive gear; 723. First rack; 724. Second rack; 725. First slide plate; 726. Second slide plate; 73. Electric drill head; 8. Turning assembly; 81. Connecting frame; 82. Electric turning head. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0040] Please see Figures 1 to 6 This invention provides a welding flange, which includes a mounting plate 1, a connecting pipe 2, and a welding pipe 3. The connecting pipe 2 is disposed on the mounting plate 1, and the welding pipe 3 is fixedly connected to the side of the connecting pipe 2 away from the mounting plate 1. In this embodiment, the mounting plate 1, the connecting pipe 2, and the welding pipe 3 are integrally formed.

[0041] Furthermore, a connecting cavity 10 is provided at the center of the mounting plate 1, the connecting pipe 2, and the welding pipe 3. The connecting cavity 10 is a cylindrical cavity and extends through the ends of the mounting plate 1 and the welding pipe 3.

[0042] Mounting plate 1 is a disc-shaped structure with multiple mounting holes 11. These mounting holes 11 are evenly spaced along the circumference of the mounting plate 1. During installation, bolts are passed through the mounting holes 11 and then through another mounting hole 11 on the weld flange, and finally secured with nuts.

[0043] A first sealing groove 12 and a second sealing groove 13 are provided on the side of the mounting plate 1 away from the connecting pipe 2. The first sealing groove 12 is located outside the mounting hole 11, and the second sealing groove 13 is located inside the mounting hole 11. Further, a first sealing element 120 is installed in the first sealing groove 12, and a second sealing element 130 is installed in the second sealing groove 13. The first sealing element 120 and the second sealing element 130 have the same structure. Please refer again. Figure 4 When the two weld neck flanges are joined, the mating surfaces between the two first sealing elements 120 form a sealing surface 14, and the mating surfaces between the two weld neck flanges form a supporting surface 15. The sealing surface 14 and the supporting surface 15 are at least partially non-parallel, and both edges of the sealing surface 14 are offset from the supporting surface 15, with the two edges of the sealing surface 14 located on the upper and lower sides of the supporting surface 15. Specifically, one edge of the sealing surface 14 (i.e., Figure 6 The middle D point is located below the abutment surface 15, and the other edge of the sealing surface 14 (i.e., Figure 6 The sealing surface 14 (located at point E) is above the bearing surface 15. During use, the fluid first passes through the bearing surface 15 and then enters the sealing surface 14 from the edge E, thereby reducing the risk of fluid leakage.

[0044] The sealing surface 14 includes a first protruding surface 141, a stepped surface 142, and a second protruding surface 143. The first protruding surface 141 is perpendicular to the stepped surface 142, and the first protruding surface 141 and the second protruding surface 143 are parallel. The first protruding surface 141 and the second protruding surface 143 are offset from each other by the stepped surface 142. The center plane of the stepped surface 142 is coplanar with the abutment surface 15. The offset of the first protruding surface 141 from the abutment surface 15 and the offset of the second protruding surface 143 from the abutment surface 15 increases the contact area between the two weld neck flanges, thereby increasing the difficulty of fluid passage and resulting in a better sealing effect between the two weld neck flanges. In this embodiment, both the first sealing element 120 and the second sealing element 130 are rubber strips.

[0045] Furthermore, the first protruding surface 141 is located below the abutting surface 15, and the distance between the first protruding surface 141 and the abutting surface 15 is L1. The second protruding surface 143 is located above the abutting surface 15, and the distance between the second protruding surface 143 and the abutting surface 15 is L2, where L1=L2.

[0046] Furthermore, when the two welding flanges are joined together, the first protruding surface 141 and the second protruding surface 143 on the two first sealing elements 120 are centrally symmetrical about the step surface 142. Therefore, only one mold is needed to manufacture the first sealing elements 120 and the second sealing elements 130 on the two welding flanges, thereby saving production costs.

[0047] In this embodiment, the sealing surface 14 on the first seal 120 and the second seal 130 is configured as a step. In other embodiments not shown, the sealing surface 14 on the first seal 120 and the second seal 130 may also be configured as multiple steps, thereby increasing the contact area between the two weld neck flanges, making it more difficult for fluid to pass through, and thus improving the sealing effect between the two weld neck flanges.

[0048] The connecting pipe 2 has a frustum-shaped structure, and the contact area between the bottom end of the connecting pipe 2 and the mounting plate 1 is relatively large, which makes the connection between the connecting pipe 2 and the mounting plate 1 more stable.

[0049] The end of the welded pipe 3 away from the connecting pipe 2 is chamfered. A positioning hole 31 is provided on the welded pipe 3, which mates with a positioning post on the pipe. Further, there are two positioning holes 31, arranged opposite to each other. In other embodiments not shown, there may be four or six positioning holes 31.

[0050] Please see Figures 7 to 11 The present invention also provides an integrated feeding, drilling, and turning equipment for processing the above-mentioned weld neck flange. The integrated feeding, drilling, and turning equipment includes a machine base 4, a feeding assembly 5, a fixing mechanism 6, a drilling mechanism 7, and a turning assembly 8. The feeding assembly 5, the fixing mechanism 6, the drilling mechanism 7, and the turning assembly 8 are all mounted on the machine base 4. The fixing mechanism 6 is located in the middle of the feeding assembly 5, the drilling mechanism 7, and the turning assembly 8. The fixing mechanism 6 is used to fix the weld neck flange, the drilling mechanism 7 is used to drill holes in the weld neck flange, and the turning assembly 8 is used to turn the weld neck flange.

[0051] The feeding assembly 5 includes a base 51, a feeding component 52, a conveyor 53, a feeding motor 54, a fixed frame 55, and a feeding component 56. The base 51 is fixedly mounted on the machine base 4. The feeding component 52 is inclinedly mounted on the base 51. Multiple forged butt-welded flanges are mounted on the feeding component 52. The conveyor 53 is rotatably mounted on one end of the feeding component 52. The feeding motor 54 is fixedly mounted on the machine base 4. The output shaft of the feeding motor 54 is fixedly connected to the conveyor 53. The feeding motor 54 is used to drive the conveyor 53 to rotate. The fixed frame 55 is fixedly mounted on the machine base 4. The feeding component 56 is fixedly mounted on the fixed frame 55. The feeding component 56 is positioned opposite to the conveyor 53.

[0052] The feeding component 52 is provided with a feeding end 521 and a discharging end 522. The feeding end 521 is set higher than the discharging end 522. In use, the forged butt-welding flange enters the feeding component 52 from the feeding end 521 and then comes out from the discharging end 522.

[0053] The feeding component 52 includes an upper baffle 523, a lower baffle 524, and a support rod 525. The upper baffle 523 and the lower baffle 524 are arranged opposite to each other. There are multiple support rods 525, which are arranged between the upper baffle 523 and the lower baffle 524.

[0054] Furthermore, in order to better enable the welding flange to slide between the upper baffle 523 and the lower baffle 524, guide grooves 520 are provided on the lower end face of the upper baffle 523 and the upper end face of the lower baffle 524. The guide grooves 520 cooperate with the mounting plate 1, thereby enabling the welding flange to have a guiding function when sliding between the upper baffle 523 and the lower baffle 524.

[0055] The conveying component 53 is provided with a conveying groove 531. The feeding component 56 is positioned opposite to the conveying groove 531. A support block 530 that cooperates with the welding pipe 3 is provided in the conveying groove 531. The upper surface of the support block 530 has an arc-shaped groove structure and the upper surface of the support block 530 is in contact with the welding pipe 3, thereby supporting the welding pipe 3 of the butt-welding flange in the conveying groove 531.

[0056] Furthermore, in order to prevent the welding flange in the conveying groove 531 from detaching from the conveying groove 531, the upper surface of the support block 530 is recessed downward to form a receiving groove (not shown in the figure). A magnet is installed in the receiving groove. Since the welding flange has a certain magnetism, the welding flange can be attracted by the magnet.

[0057] In this embodiment, the feeding component 56 is a cylinder, the cylinder body of which is fixedly connected to the fixing frame 55, and the piston rod of the cylinder is used to feed the weld neck flange. In use, the feeding component 56 is activated, thereby enabling it to push the weld neck flange in the conveying groove 531 onto the fixing mechanism 6 and fix the weld neck flange in place. In other embodiments not shown, the feeding component 56 may also be an electric push rod.

[0058] In use, the welding flange is placed into the loading component 52, and the feeding motor 54 is started, so that the conveying groove 531 on the conveying component 53 rotates to the discharge end 522 of the loading component 52, so that the welding flange at the bottom of the loading component 52 falls into the conveying groove 531. Then, the conveying component 53 is rotated counterclockwise so that the conveying groove 531 is aligned with the feeding component 56 and the fixing mechanism 6.

[0059] The fixing mechanism 6 includes a rotary motor 61, a rotating base 62, a pusher 63, a connecting block 64, a rotating shaft 65, a fixing member 66, and a rotating assembly 67. The rotary motor 61 is fixedly mounted on the machine base 4, and the output shaft of the rotary motor 61 is fixedly connected to the rotating base 62. The pusher 63 is fixedly mounted on the rotating base 62, and the connecting block 64 is fixedly connected to the protruding end of the pusher 63. The rotating shaft 65 is rotatably connected to the connecting block 64, and the fixing member 66 is fixedly mounted on the end of the rotating shaft 65. The rotating assembly 67 is mounted on the rotating base 62 and is used to drive the rotating shaft 65 to rotate.

[0060] To enable a rotatable connection between the rotating shaft 65 and the connecting block 64, a bearing 641 is provided between the end of the connecting block 64 and the rotating shaft 65. The bearing 641 ensures that the rotating shaft 65 does not cause the connecting block 64 to rotate when it rotates.

[0061] Furthermore, in order to prevent the connecting block 64 from separating from the rotating shaft 65 when the pusher 63 pushes the connecting block 64 and the rotating shaft 65, a limit rod 642 is fixedly connected to the connecting block 64, and a groove 650 that cooperates with the limit rod 642 is provided on the rotating shaft 65.

[0062] In this embodiment, the fixing member 66 is a three-jaw chuck, and the jaws on the three-jaw chuck are in contact with the inner wall of the mounting plate 1 of the welding flange.

[0063] The rotating assembly 67 includes a limiting seat 671, a motor 672, a driving gear 673, and a driven gear 674. The limiting seat 671 is fixedly mounted on the rotating seat 62, and the motor 672 is fixedly mounted on the rotating seat 62, with the motor 672 located on one side of the limiting seat 671. The driving gear 673 is fixedly connected to the output shaft of the motor 672. The driven gear 674 is slidably sleeved on the outside of the rotating shaft 65, and meshes with the driving gear 673. In use, starting the motor 672 causes the driving gear 673 to rotate, which in turn drives the driven gear 674 and the rotating shaft 65 to rotate, thereby causing the weld flange on the fixing member 66 to rotate.

[0064] Furthermore, the upper end of the limiting seat 671 is recessed downward to form a limiting groove 670. One end of the rotating shaft 65 passes through the limiting seat 671 and the limiting groove 670 and is fixedly connected to the fixing member 66. The driven gear 674 is rotatably disposed in the limiting groove 670. The limiting groove 670 can restrict the sliding of the driven gear 674 to prevent the driven gear 674 from disengaging from the driving gear 673.

[0065] To enable a slidable connection between the driven gear 674 and the rotating shaft 65, a protrusion (not shown) is provided on the driven gear 674, and a groove 651 that mates with the protrusion is provided on the rotating shaft 65. In use, the protrusion can slide along the extending direction of the groove 651.

[0066] In use, the pusher 63 is activated, causing the fixing member 66 to approach and fit against the conveying groove 531. At this time, the protrusion can slide along the extension direction of the slide groove 651. The feeder 56 is activated, which pushes the welding flange in the conveying groove 531 onto the fixing mechanism 6. The fixing member 66 fixes the welding flange. Then, the pusher 63 is activated to retract the fixing member 66. Then, the rotary motor 61 is activated, which drives the rotating seat 62 to rotate 180°, so that the welding flange on the fixing member 66 is aligned with the drilling mechanism 7.

[0067] The drilling mechanism 7 includes a support frame 71, a moving component 72, and an electric drill head 73. The support frame 71 is fixedly mounted on the machine base 4, the moving component 72 is mounted on the support frame 71, and the electric drill head 73 is mounted on the moving component 72.

[0068] The moving component 72 includes a rotary motor 721, a drive gear 722, a first rack 723, a second rack 724, a first slide plate 725, and a second slide plate 726. The rotary motor 721 is fixedly mounted on the support frame 71. The output shaft of the rotary motor 721 passes through the support frame 71 and is fixedly connected to the drive gear 722. Both the first rack 723 and the second rack 724 mesh with the drive gear 722. The first slide plate 725 is fixedly connected to the first rack 723 and is slidably connected to the support frame 71. The second slide plate 726 is fixedly connected to the second rack 724 and is slidably connected to the support frame 71. There are two electric drill heads 73, which are respectively mounted on the first slide plate 725 and the second slide plate 726.

[0069] In order to enable the first slide plate 725 to slide with the support frame 71 and the second slide plate 726 to slide with the support frame 71, a guide rail 710 is provided on the support frame 71, and guide blocks 720 are provided on both the first slide plate 725 and the second slide plate 726, with the guide blocks 720 cooperating with the guide rail 710.

[0070] When in use, the rotating motor 721 is started, which drives the drive gear 722 to rotate, thereby causing the first rack 723 and the second rack 724 to slide. This causes the first slide plate 725 and the second slide plate 726 to move closer to or further away from each other, which in turn causes the two electric drill heads 73 to move closer to or further away from each other.

[0071] The turning assembly 8 includes a connecting frame 81 and an electric turning head 82 disposed on the connecting frame 81. The electric turning head 82 is used to turn the weld flange.

[0072] In use, first place the weld neck flange into the loading component 52, start the feeding motor 54, causing the conveying groove 531 on the conveying component 53 to rotate to the discharge end 522 of the loading component 52, so that the weld neck flange at the bottom of the loading component 52 falls into the conveying groove 531. Then, rotate the conveying component 53 counterclockwise so that the conveying groove 531 is aligned with the feeding component 56 and the fixing mechanism 6. Start the pushing component 63 so that the fixing component 66 approaches and adheres to the conveying groove 531. At this point, the protrusion can slide along the extension direction of the slide groove 651, activating the feeding component 56, which pushes the welding flange in the conveying groove 531 onto the fixing mechanism 6. The fixing component 66 fixes the welding flange, and then the pushing component 63 retracts the fixing component 66. The rotary motor 61 is activated, driving the rotating seat 62 to rotate 180°, so that the welding flange on the fixing component 66 is aligned with the drilling mechanism 7. The pushing component is then activated again. Extend the fixing member 66 and bring the electric drill head 73 close to the mounting plate 1. Start the rotating motor 721. The rotating motor 721 drives the drive gear 722 to rotate, thereby driving the first rack 723 and the second rack 724 to slide. Then, the first slide plate 725 and the second slide plate 726 slide to the appropriate position. After the electric drill head 73 drills the mounting plate 1, start the motor 672, so that the drive gear 673 can rotate, thereby driving the driven gear 674 and the rotating shaft 65 to rotate, thereby causing the weld flange on the fixing member 66 to rotate. Start the electric drill head 73 again to drill the mounting plate 1. Repeat this process until all the mounting holes 11 on the mounting plate 1 are drilled. Then drill the positioning hole 31 on the welded pipe 3. Finally, start the rotating motor 61. The rotating motor 61 drives the rotating seat 62 to rotate 90° and align it with the turning assembly 8. The electric turning head 82 is used to turn the weld flange.

[0073] Based on this, please refer to Figure 12 The present invention further provides a processing method for processing the above-described weld neck flange, the processing method comprising the following steps:

[0074] Step S1: Unload the material and place the forged welding flange in the appropriate position;

[0075] Step S2: Feeding and fixing: The forged butt-welding flange is automatically fed and fixed.

[0076] Step S3: Rotate for alignment. Rotate the fixed welding flange 180° so that the welding flange is aligned with the drilling machine.

[0077] Step S4: Drilling. Use a drilling machine to drill the mounting holes and positioning holes of the welding flange.

[0078] Step S5: Rotate for alignment, continue to rotate the welding flange by 90° so that the welding flange is aligned with the turning device;

[0079] Step S6: Turning, the turning device is used to turn the weld flange.

[0080] The welding flange provided by the present invention, by installing a first sealing element 120 in a first sealing groove 12 and a second sealing element 130 in a second sealing groove 13, when the two welding flanges are joined, the contact surfaces between the two first sealing elements 120 form a sealing surface 14, and the contact surfaces between the two welding flanges form a supporting surface 15. The sealing surface 14 and the supporting surface 15 are at least partially non-parallel, and one side of the sealing surface 14 is located below the supporting surface 15, and the other side of the sealing surface 14 is located above the supporting surface 15. This increases the contact area between the two welding flanges, making it more difficult for fluid to pass through, thereby improving the sealing effect between the two welding flanges.

[0081] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of the present invention. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A welding flange, characterized in that: The welding flange includes a mounting plate, a connecting pipe, and a welding pipe. The mounting plate has multiple mounting holes. On the side of the mounting plate away from the connecting pipe, there is a first sealing groove located outside the mounting holes and a second sealing groove located inside the mounting holes. A first sealing element is installed in the first sealing groove, and a second sealing element is installed in the second sealing groove. When two welding flanges are joined, the contact surfaces between the two first sealing elements form a sealing surface, and the contact surfaces between the two welding flanges form a supporting surface. The sealing surface and the supporting surface are at least partially non-parallel. The two edges of the sealing surface are offset from the supporting surface, and the two edges of the sealing surface are located on the upper and lower sides of the supporting surface. The welding pipe has two opposing positioning holes. The sealing surface includes a first protruding surface, a stepped surface, and a second protruding surface. The first protruding surface and the second protruding surface are offset by the stepped surface. The first protruding surface is offset from the second sealing surface, and the second protruding surface is offset from the second sealing surface. The welding flange is processed using an integrated loading, drilling, and turning machine. The integrated feeding, drilling, and turning equipment includes a machine base and a feeding assembly, a fixing mechanism, a drilling mechanism, and a turning assembly mounted on the machine base. The feeding assembly is used to feed the weld neck flange. The feeding assembly includes a base mounted on the machine base, a feeding component inclined on the base, a conveyor rotatably mounted at one end of the feeding component, a fixing frame mounted on the machine base, and a feeding component mounted on the fixing frame. The fixing mechanism is used to fix and rotate the weld neck flange. The drilling mechanism is used to drill the weld neck flange... The machining assembly is used to machine the weld flange. The feeding component has an inlet and an outlet, with the inlet being higher than the outlet. The conveying component has a conveying groove, and the feeding component is positioned opposite to the conveying groove and the fixing mechanism. A support block that cooperates with the welded pipe is provided in the conveying groove. The upper surface of the support block has an arc-shaped groove structure, and the upper surface of the support block is in contact with the welded pipe. The upper surface of the support block is recessed downward to form a receiving groove, and a magnet is installed in the receiving groove.

2. The welding flange as described in claim 1, characterized in that: When the two weld neck flanges are joined together, the first protruding surface is located below the abutting surface, and the distance between the first protruding surface and the abutting surface is L1. The second protruding surface is located above the abutting surface, and the distance between the second protruding surface and the abutting surface is L2, where L1=L2.

3. The welding flange as described in claim 1, characterized in that: The center plane of the step surface is coplanar with the bearing surface.

4. The welding flange as described in claim 1, characterized in that: The first seal has the same structure as the second seal.

5. The welding flange as described in claim 1, characterized in that: When the two weld neck flanges are joined together, the first protruding surfaces and the second protruding surfaces on the two first seals are arranged in a centrally symmetrical manner about the stepped surface.

6. A method for processing a butt-welding flange, characterized in that: The method for processing the welding flange is used to process the welding flange according to any one of claims 1-5, and the method includes the following steps: Step S1: Unload the material and place the forged welding flange in the appropriate position; Step S2: Feeding and fixing: The forged butt-welding flange is automatically fed and fixed. Step S3: Rotate for alignment. Rotate the fixed welding flange 180° so that the welding flange is aligned with the drilling machine. Step S4: Drilling. Use a drilling machine to drill the mounting holes and positioning holes of the welding flange. Step S5: Rotate for alignment, continue to rotate the welding flange by 90° so that the welding flange is aligned with the turning device; Step S6: Turning, the turning device is used to turn the weld flange.

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