Hubbed welding neck flange assembling device

Abstract

The utility model discloses a hubbed welding neck flange assembling device which comprises a puller bolt, a clamping device and a clamping device. The lead screw comprises an upper lead screw body and a lower lead screw body, the lower end of the upper lead screw body is in threaded connection with an inner cavity in the top end of the puller bolt, and the upper end of the lower lead screw body is in threaded connection with an inner cavity in the bottom end of the puller bolt; the jacking channel steel comprises upper jacking channel steel and lower jacking channel steel, the upper jacking channel steel and the lower jacking channel steel are oppositely arranged and are parallel to each other, the upper jacking channel steel is arranged at the top end of the upper lead screw, and the lower jacking channel steel is arranged at the bottom end of the lower lead screw. On one hand, the number of weldment assembly constructors can be reduced, the labor intensity of the constructors is reduced, and weldment assembly is more accurate; on the other hand, a good welding environment is provided for welding personnel, and quality forming of welding seams is guaranteed.

Description

Technical Field

[0001] The utility model relates to a butt welding flange assembly device with a neck, belonging to the technical field of welding tooling. Background Technique

[0002] With the influence brought by market demands and social progress, butt welding flanges with necks are widely used in the flexible transformation of thermal power units, energy storage new energy, and equipment pipelines in the chemical industry because they are suitable for occasions with high pressure and high temperature. However, due to the unique type of butt welding flanges with necks, there are certain difficulties in the process of assembling with the nozzle. It is necessary to ensure that the inner walls of the butt welding flange with a neck and the nozzle are flush, and at the same time, it is required to ensure the perpendicularity of the nozzle center line and the end face of the butt welding flange with a neck.

[0003] In the prior art, the widely used assembly method is to set up a complex assembly platform or manual assembly, neither of which can meet the requirements of being quick and convenient and improving the pipeline assembly efficiency and accuracy. To a great extent, it increases the labor intensity of workers and reduces the construction efficiency. Therefore, we propose a butt welding flange assembly device with a neck. Content of the Utility Model

[0004] The purpose of the utility model is to provide a butt welding flange assembly device with a neck, to solve the applicability and effectiveness problems of the existing butt welding flange with a neck and nozzle assembly method, and to improve the assembly efficiency and accuracy.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A butt welding flange assembly device with a neck, including: a top bolt, the inside of the top bolt is hollow, and the inner cavity is provided with threads; a lead screw, the lead screw includes an upper lead screw and a lower lead screw, the lower end of the upper lead screw is threadedly connected to the inner cavity of the top of the top bolt, the upper end of the lower lead screw is threadedly connected to the inner cavity of the bottom of the top bolt, and the threads on the surfaces of the upper lead screw and the lower lead screw are reverse threads to each other; a top channel steel, the top channel steel includes an upper top channel steel and a lower top channel steel, the upper top channel steel and the lower top channel steel are arranged opposite to each other and parallel to each other, the upper top channel steel is arranged at the top of the upper lead screw, and the lower top channel steel is arranged at the bottom of the lower lead screw.

[0006] For the aforementioned butt welding flange assembly device with a neck, an upper fastening nut is welded on the upper surface of the upper top channel steel, the top of the upper lead screw passes through the upper top channel steel and is threadedly connected to the upper fastening nut, a lower fastening nut is welded on the upper surface of the lower top channel steel, and the top of the lower lead screw passes through the lower top channel steel and is threadedly connected to the lower fastening nut.

[0007] The aforementioned butt-welding flange alignment device with a neck. The upper lead screw is threadedly sleeved with an upper adjusting nut, and the upper adjusting nut is placed between the tightening bolt and the upper tightening channel steel. The lower lead screw is threadedly sleeved with a lower adjusting nut, and the lower adjusting nut is placed between the tightening bolt and the lower tightening channel steel. The upper adjusting nut and the lower adjusting nut are used to fix the upper tightening channel steel and the lower tightening channel steel.

[0008] The aforementioned butt-welding flange alignment device with a neck is characterized in that on both the left and right side walls of the upper tightening channel steel, there are provided pair-up clearance adjustment components. The pair-up clearance adjustment components are provided with vertically penetrating chutes along the length direction of the upper tightening channel steel, and a clearance control component is inserted vertically in the chutes.

[0009] The aforementioned butt-welding flange alignment device with a neck. The clearance control component has a U-shaped structure. The two ends of the clearance control component respectively pass downward through the chutes on both sides of the upper tightening channel steel, and the two ends of the clearance control component extend downward to below the lower tightening channel steel.

[0010] The aforementioned butt-welding flange alignment device with a neck. The groove surfaces of the upper tightening channel steel and the lower tightening channel steel are on the side away from the tightening bolt.

[0011] Compared with the prior art, the utility model can fix and calibrate the positions of the nozzle and the flange, can smoothly carry out pair-up, and through the pair-up clearance adjustment component, ensure the required clearance for the pair-up of the welded parts. On the one hand, the utility model can reduce the construction personnel for the pair-up of the welded parts, reduce the labor intensity of the construction personnel, and make the pair-up of the welded parts more accurate; on the other hand, it provides a good welding environment for the welding personnel, ensures the quality formation of the weld seam, lays a good foundation for the subsequent stable operation of the equipment, and its operation is simple, time-saving and labor-saving. Brief Description of the Drawings

[0012] Figure 1 is the front view of the installation structure of the utility model;

[0013] Figure 2 is the schematic side view of the installation structure of the utility model;

[0014] Figure 3 is the schematic top view of the installation structure of the utility model.

[0015] Reference Signs: 1 - tightening bolt, 2 - upper lead screw, 3 - lower lead screw, 4 - upper tightening channel steel, 5 - lower tightening channel steel, 6 - upper fastening nut, 7 - lower fastening nut, 8 - upper adjusting nut, 9 - lower adjusting nut, 10 - pair-up clearance adjustment component, 11 - chute, 12 - clearance control component, 13 - nozzle, 14 - flange.

[0016] The following further describes the utility model in conjunction with the drawings and specific embodiments. Specific embodiments

[0017] Embodiment 1 of the present utility model: A necked butt welding flange alignment device, comprising: a tightening bolt 1, the interior of the tightening bolt 1 is hollow, and the inner cavity is provided with threads; a lead screw, the lead screw includes an upper lead screw 2 and a lower lead screw 3, the lower end of the upper lead screw 2 is threadedly connected to the inner cavity of the top end of the tightening bolt 1, the upper end of the lower lead screw 3 is threadedly connected to the inner cavity of the bottom end of the tightening bolt 1, the surface threads of the upper lead screw 2 and the lower lead screw 3 are reverse threads to each other. When the tightening bolt 1 is rotated clockwise, the upper lead screw 2 can move upward, and the lower lead screw 3 can move downward. When the tightening bolt 1 is rotated counterclockwise, the upper lead screw 2 can move downward, and the lower lead screw 3 can move upward; a tightening channel steel, the tightening channel steel includes an upper tightening channel steel 4 and a lower tightening channel steel 5, the upper tightening channel steel 4 and the lower tightening channel steel 5 are arranged oppositely and parallel to each other, the upper tightening channel steel 4 is arranged at the top end of the upper lead screw 2, the lower tightening channel steel 5 is arranged at the bottom end of the lower lead screw 3, one end of the upper tightening channel steel 4 and the lower tightening channel steel 5 is inserted into the nozzle 13, the distance between the upper tightening channel steel 4 and the lower tightening channel steel 5 can be adjusted by rotating the tightening bolt 1 to fixedly tighten it in the inner cavity of the nozzle 13, the other end of the upper tightening channel steel 4 and the lower tightening channel steel 5 is inserted into the flange 14, and the gap between the nozzle 13 and the flange 14 can be adjusted during welding.

[0018] Embodiment 2 of the present utility model: A necked butt welding flange alignment device, comprising: a tightening bolt 1, the interior of the tightening bolt 1 is hollow, and the inner cavity is provided with threads; a lead screw, the lead screw includes an upper lead screw 2 and a lower lead screw 3, the lower end of the upper lead screw 2 is threadedly connected to the inner cavity of the top end of the tightening bolt 1, the upper end of the lower lead screw 3 is threadedly connected to the inner cavity of the bottom end of the tightening bolt 1, the surface threads of the upper lead screw 2 and the lower lead screw 3 are reverse threads to each other. When the tightening bolt 1 is rotated clockwise, the upper lead screw 2 can move upward, and the lower lead screw 3 can move downward. When the tightening bolt 1 is rotated counterclockwise, the upper lead screw 2 can move downward, and the lower lead screw 3 can move upward; a tightening channel steel, the tightening channel steel includes an upper tightening channel steel 4 and a lower tightening channel steel 5, the upper tightening channel steel 4 and the lower tightening channel steel 5 are arranged oppositely and parallel to each other, the upper tightening channel steel 4 is arranged at the top end of the upper lead screw 2, the lower tightening channel steel 5 is arranged at the bottom end of the lower lead screw 3, one end of the upper tightening channel steel 4 and the lower tightening channel steel 5 is inserted into the nozzle 13, the distance between the upper tightening channel steel 4 and the lower tightening channel steel 5 can be adjusted by rotating the tightening bolt 1 to fixedly tighten it in the inner cavity of the nozzle 13, the other end of the upper tightening channel steel 4 and the lower tightening channel steel 5 is inserted into the flange 14, and the gap between the nozzle 13 and the flange 14 can be adjusted during welding.

[0019] The upper surface of the upper tightening channel steel 4 is welded with an upper fastening nut 6. The top end of the upper lead screw 2 passes through the upper tightening channel steel 4 and is threadedly connected to the upper fastening nut 6. The upper surface of the lower tightening channel steel 5 is welded with a lower fastening nut 7. The top end of the lower lead screw 3 passes through the lower tightening channel steel 5 and is threadedly connected to the lower fastening nut 7. The upper lead screw 2 is threadedly sleeved with an upper adjusting nut 8, and the upper adjusting nut 8 is placed between the tightening bolt 1 and the upper tightening channel steel 4. The lower lead screw 3 is threadedly sleeved with a lower adjusting nut 9, and the lower adjusting nut 9 is placed between the tightening bolt 1 and the lower tightening channel steel 5. The upper adjusting nut 8 and the lower adjusting nut 9 are respectively used to fix the upper tightening channel steel 4 and the lower tightening channel steel 5. The upper tightening channel steel 4 is fixedly connected to the upper lead screw 2 through the upper fastening nut 6 and is further fixed through the upper adjusting nut 8. The lower tightening channel steel 5 is fixedly connected to the lower lead screw 3 through the lower fastening nut 7 and is further fixed through the lower adjusting nut 9.

[0020] Embodiment 3 of the present utility model: A neck - butt welding flange alignment device, comprising: a tightening bolt 1, the tightening bolt 1 is hollow inside, and its inner cavity is provided with threads; a lead screw, the lead screw includes an upper lead screw 2 and a lower lead screw 3. The lower end of the upper lead screw 2 is threadedly connected to the inner cavity of the top end of the tightening bolt 1, and the upper end of the lower lead screw 3 is threadedly connected to the inner cavity of the bottom end of the tightening bolt 1. The surface threads of the upper lead screw 2 and the lower lead screw 3 are reverse threads of each other. When the tightening bolt 1 is rotated clockwise, the upper lead screw 2 can move upward and the lower lead screw 3 can move downward. When the tightening bolt 1 is rotated counterclockwise, the upper lead screw 2 can move downward and the lower lead screw 3 can move upward; tightening channel steels, the tightening channel steels include an upper tightening channel steel 4 and a lower tightening channel steel 5. The upper tightening channel steel 4 and the lower tightening channel steel 5 are arranged opposite to each other and are parallel to each other. The groove surfaces of the upper tightening channel steel 4 and the lower tightening channel steel 5 are on the side away from the tightening bolt 1, so that the feet of the upper tightening channel steel 4 and the lower tightening channel steel 5 are in contact with the inner wall of the nozzle 13. The upper tightening channel steel 4 is arranged at the top end of the upper lead screw 2, and the lower tightening channel steel 5 is arranged at the bottom end of the lower lead screw 3. One end of the upper tightening channel steel 4 and the lower tightening channel steel 5 is inserted into the nozzle 13. The distance between the upper tightening channel steel 4 and the lower tightening channel steel 5 can be adjusted by rotating the tightening bolt 1 so as to fixedly tighten it in the inner cavity of the nozzle 13. The other end of the upper tightening channel steel 4 and the lower tightening channel steel 5 is inserted into the flange 14. During welding, the gap between the nozzle 13 and the flange 14 can be adjusted.

[0021] The upper surface of the upper tightening channel steel 4 is welded with an upper fastening nut 6. The top end of the upper lead screw 2 passes through the upper tightening channel steel 4 and is threadedly connected with the upper fastening nut 6. The upper surface of the lower tightening channel steel 5 is welded with a lower fastening nut 7. The top end of the lower lead screw 3 passes through the lower tightening channel steel 5 and is threadedly connected with the lower fastening nut 7. The upper lead screw 2 is threadedly sleeved with an upper adjusting nut 8. The upper adjusting nut 8 is placed between the tightening bolt 1 and the upper tightening channel steel 4. The lower lead screw 3 is threadedly sleeved with a lower adjusting nut 9. The lower adjusting nut 9 is placed between the tightening bolt 1 and the lower tightening channel steel 5. The upper adjusting nut 8 and the lower adjusting nut 9 are respectively used to fix the upper tightening channel steel 4 and the lower tightening channel steel 5. The upper tightening channel steel 4 is fixedly connected with the upper lead screw 2 through the upper fastening nut 6 and is further fixed through the upper adjusting nut 8. The lower tightening channel steel 5 is fixedly connected with the lower lead screw 3 through the lower fastening nut 7 and is further fixed through the lower adjusting nut 9.

[0022] Grouping gap adjustment components 10 are arranged on the left and right side walls of the upper tightening channel steel 4. The grouping gap adjustment components 10 are provided with vertically penetrating chutes 11 along the length direction of the upper tightening channel steel 4. A gap control component 12 is inserted vertically into the chute 11. The gap control component 12 is of a U-shaped structure. The two ends of the gap control component 12 respectively pass downward through the chutes 11 on both sides of the upper tightening channel steel 4, and the two ends of the gap control component 12 extend downward to the lower part of the lower tightening channel steel 5. By adjusting the position of the gap control component 12 on the grouping gap adjustment component 10, after the nozzle 13 and the flange 14 are butted, the weld spacing is adjusted through the gap control component 12, and then spot welding is carried out for fixation; after the nozzle 13 and the flange 14 are circumferentially tack-welded or reach a certain welding strength, the gap control component 12 is withdrawn.

[0023] The working principle of an embodiment of the present utility model: During use, adjust the upper lead screw 2 and the upper fastening nut 6, and the lower lead screw 3 and the lower fastening nut 7, and respectively fix them with the upper adjusting nut 8 and the lower adjusting nut 9. According to the size of the pipe diameter to be grouped, rotate the tightening bolt 1 to adjust the distance between the upper tightening channel steel 4 and the lower tightening channel steel 5, and determine the pipe diameters of the welding neck butt flange 14 and the nozzle 13 to be assembled, so that the grouping device can smoothly penetrate into the nozzle 13. After the upper tightening channel steel 4 and the lower tightening channel steel 5 are inserted into the inner cavity of the nozzle 13, rotate the tightening bolt 1 clockwise to make the upper tightening channel steel 4 and the lower tightening channel steel 5 tightly press against the inner wall of the nozzle 13 to achieve the purpose of fastening, so that the grouping device is firmly fixed in the nozzle 13. Then place the flange 14 on the upper tightening channel steel 4 and the lower tightening channel steel 5, and insert the gap control component 12 into the grouping gap adjustment component 10, and grouping can be smoothly carried out. After inspection, spot welding is carried out for fixation. After the nozzle 13 and the flange 14 are circumferentially tack-welded or reach a certain welding strength, the gap control component 12 of the weld is withdrawn, and then rotate the tightening bolt 1 counterclockwise, and the distance between the upper tightening channel steel 4 and the lower tightening channel steel 5 becomes shorter, so that the grouping device can be smoothly taken out, taken back for standby or continue to group the next workpiece.

Claims

1. A neck butt welding flange assembly device, characterized in that: include: Tightening bolt (1); A lead screw, the lead screw comprising an upper lead screw (2) and a lower lead screw (3), the lower end of the upper lead screw (2) being threadedly connected to the inner cavity at the top end of the tightening bolt (1), and the upper end of the lower lead screw (3) being threadedly connected to the inner cavity at the bottom end of the tightening bolt (1); The tightening channel steel comprises an upper tightening channel steel (4) and a lower tightening channel steel (5), the upper tightening channel steel (4) and the lower tightening channel steel (5) are arranged relative to each other and parallel to each other, the upper tightening channel steel (4) is arranged at the top end of the upper screw (2), and the lower tightening channel steel (5) is arranged at the bottom end of the lower screw (3).

2. The neck-welded flange assembly device according to claim 1 is characterized in that: An upper fastening nut (6) is welded to the upper surface of the upper tightening channel steel (4), the top end of the upper lead screw (2) passes through the upper tightening channel steel (4) and is threadedly connected to the upper fastening nut (6), and a lower fastening nut (7) is welded to the upper surface of the lower tightening channel steel (5), and the top end of the lower lead screw (3) passes through the lower tightening channel steel (5) and is threadedly connected to the lower fastening nut (7).

3. The neck-welded flange assembly device according to claim 2 is characterized in that: The upper lead screw (2) is threadedly sleeved with an upper adjusting nut (8), and the upper adjusting nut (8) is placed between the tightening bolt (1) and the upper tightening channel steel (4); the lower lead screw (3) is threadedly sleeved with a lower adjusting nut (9), and the lower adjusting nut (9) is placed between the tightening bolt (1) and the lower tightening channel steel (5).

4. A necked butt welding flange assembly device according to claim 1, 2 or 3, characterized in that: The left and right side walls of the upper tightening channel steel (4) are both provided with a pair of gap adjustment components (10), and the pair of gap adjustment components (10) are provided with a sliding groove (11) penetrating vertically along the length direction of the upper tightening channel steel (4), and a gap control component (12) is inserted into the sliding groove (11) along the vertical direction.

5. The neck-welded flange assembly device according to claim 4 is characterized in that: The gap control component (12) is in a U-shaped structure, and the two ends of the gap control component (12) respectively pass downward through the slide grooves (11) on both sides of the upper tightening channel steel (4), and the two ends of the gap control component (12) extend downward to below the lower tightening channel steel (5).

6. A necked butt welding flange assembly device according to claim 1 or 5, characterized in that: The groove surfaces of the upper tightening channel steel (4) and the lower tightening channel steel (5) are arranged on a side away from the tightening bolt (1).

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