A directional assembly device for butt flange

Abstract

The present invention discloses a directional assembly device for butt joint flanges, which specifically relates to the field of flange assembly, and includes: a support mechanism and a clamping mechanism 1, wherein the support mechanism is used to support the pipeline, the clamping mechanism 1 includes two clamping plates that can move synchronously in opposite directions, and the clamping mechanism 1 clamps the elbow of the pipeline through the two clamping plates; the directional assembly device also includes a linear drive component, the linear drive component is tilted, and the tilt angle of the linear drive component matches the tilt angle of the elbow at the end of the pipeline, and the output end of the linear drive component is equipped with a clamping mechanism 2, and the clamping mechanism 2 includes a plurality of clamping plates that can move synchronously radially. The present invention can realize the positioning of the pipeline with the elbow and the flange through the support mechanism, the clamping mechanism 1, the clamping mechanism 2 and the linear drive component, and can ensure the docking accuracy between the elbow part of the pipeline and the flange, thereby improving the welding quality.

Description

Technical Field

[0001] The present invention relates to the technical field of flange assembly, and more particularly to a directional assembly device for butt flanges. Background Art

[0002] The assembly welding of flanges and pipes is a common process in pipeline connection, which is usually used in pipeline systems in the oil and gas, chemical, electric power and other industries. At present, the assembly welding of flanges and pipes is usually done by placing the flange on a plane and placing the pipe end in the middle of the flange, and then welding them together with a welding gun.

[0003] However, since it is necessary to extend the end of the pipe to the middle of the flange, and because the production process of the pipe and the flange is affected by manufacturing tolerances, they cannot fit completely when connected, resulting in a gap between the pipe and the flange. Although the gap may be regarded as a defect to some extent, during the welding process, a proper gap can make it easier for the weld to form a good fusion, especially when welding thicker materials. The gap can help distribute the welding heat more evenly and avoid cracks caused by too rapid cooling. In order to ensure the quality of welding, it is usually necessary to use a clamp to keep the central axis of the pipe and the flange coincident, and to make the distance between each position of the inner wall of the flange and the pipe the same to ensure its welding quality.

[0004] However, when assembling and welding some larger-diameter pipes and flanges, it is not convenient to place them vertically for welding due to their large diameter. Therefore, it is usually necessary to place the pipe horizontally and put the flange on the end of the pipe. Then, a clamp is used to ensure that the central axis of the pipe and the flange remain aligned to ensure the welding quality.

[0005] However, when welding some pipes with larger diameters and short elbows at the ends to flanges, it is necessary to ensure the welding quality by making the distance between each position of the inner wall of the flange and the pipe the same, such as Fig.14 As shown, since the elbow is in an inclined state, errors and deviations are likely to occur during docking, making it difficult to ensure the docking accuracy between the elbow and the flange, which can easily cause the elbow and the flange centerline to deviate, affecting the welding quality. Summary of the invention

[0006] The present invention provides a directional assembly device for butt joint flanges, and aims to solve the following problem: when welding existing pipes with larger diameters and short elbows at the ends to flanges, it is necessary to ensure the welding quality by making the distances between the inner wall of the flange and the pipes the same at all positions. Since the elbows are in an inclined state, errors and deviations are likely to occur during butt joint, making it difficult to ensure the butt joint accuracy between the elbows and the flanges, thereby easily causing the elbows and the center axis of the flange to deviate, thus affecting the welding quality.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a directional assembly device for butt flanges, comprising: a support mechanism and a clamping mechanism 1, wherein the support mechanism is used to support the pipeline, the clamping mechanism 1 comprises two clamping plates that can move synchronously in opposite directions, and the clamping mechanism 1 clamps the elbow of the pipeline through the two clamping plates; The directional assembly device also includes a linear drive component, which is tilted, and the tilt angle of the linear drive component matches the tilt angle of the elbow at the end of the pipeline. A clamping mechanism 2 is installed at the output end of the linear drive component. The clamping mechanism 2 includes a plurality of clamping plates that can move radially synchronously. The clamping mechanism 2 clamps and fixes the flange through the plurality of clamping plates. The linear drive component is used to drive the flange to move and connect the flange with the elbow at the end of the pipeline. The second clamping mechanism is provided with a welding mechanism, and the welding mechanism is used to weld the pipeline and the flange.

[0008] In a preferred embodiment, the support mechanism includes a support seat, on which two support rollers are rotatably provided, and the pipeline is supported by placing the pipeline on the two support rollers.

[0009] In a preferred embodiment, the clamping mechanism 1 also includes a base, on which a power component 1 is installed, and a screw 1 is installed at the output end of the power component 1. The screw 1 is provided with two groups of external threads, and the two groups of external threads have the same pitch and opposite rotation directions. Two slides are slidably arranged on the base, and the two groups of external thread slides are threadedly connected to the corresponding slides, and two clamps are installed on the corresponding slides.

[0010] In a preferred embodiment, the clamping mechanism 2 also includes a disc, a ring and a driving gear are rotatably arranged inside the disc, a driven gear is installed on the ring, the driving gear and the driven gear are meshed, a number of arc-shaped openings are opened on the ring, a number of moving bars are slidably arranged inside the disc, and a number of moving bars are each provided with a circular shaft, a number of circular shafts are movably connected in the corresponding arc-shaped openings, and a number of clamping plates are respectively installed at the ends of the corresponding circular shafts.

[0011] In a preferred embodiment, the directional assembly device further comprises an angle adjustment mechanism, and the angle adjustment mechanism is used to adjust the inclination angle of the linear drive assembly to maintain the same inclination angle as the end elbow of the pipeline.

[0012] In a preferred embodiment, the angle adjustment mechanism includes a fixed plate, an adjustment plate is rotatably arranged on the fixed plate, a power component 2 is installed on the fixed plate, a fixed disk is installed on the output end of the power component 2, a shift shaft is installed on the fixed disk, a rectangular opening is opened on the adjustment plate, the shift shaft is movably arranged in the rectangular opening, and the linear drive assembly is installed on the adjustment plate.

[0013] In a preferred embodiment, the directional assembly device further comprises an adjustment component, which is used to adjust the central axis of the elbows at the ends of pipes of different diameters to coincide with the central axis of the flange.

[0014] In a preferred embodiment, the adjustment component is an adjustment component one, and the adjustment component one includes a power component three, which is installed on a support seat, and a screw rod two is installed on the output end of the screw rod two of the power component three, and two movable seats are slidably arranged on the support seat, and two support rollers are respectively rotatably arranged on the corresponding movable seats, and the two movable seats are both threadedly connected to the screw rod two.

[0015] In a preferred embodiment, the adjustment component is adjustment component 2, which includes power component 4. The output end of power component 4 is equipped with screw rod 3, a threaded sleeve on screw rod 3 is provided with a sliding seat, and the support mechanism and clamping mechanism 1 are both installed on the sliding seat.

[0016] In a preferred embodiment, the welding mechanism also includes a rotary drive assembly, which is mounted on a disc, and a connecting plate is mounted on the output end of the rotary drive assembly, a welding gun is slidably mounted on the connecting plate, and a linear drive component is also mounted on the connecting plate, and the output end of the linear drive component is fixedly connected to the welding gun.

[0017] The beneficial effects of the present invention are: The present invention can realize the positioning of the pipe with elbow and flange through the support mechanism, the first clamping mechanism, the second clamping mechanism and the linear drive assembly, and can ensure the docking accuracy of the elbow part of the pipe and the flange, thereby improving the welding quality.

[0018] The present invention adjusts the angle of the linear drive assembly by providing an angle adjustment mechanism, so that the inclination angle of the linear drive assembly can maintain the same inclination angle as the end elbow of the pipeline, and ensure that the elbow part of the pipeline and the center axis of the flange can remain in a coincident state during docking.

[0019] The present invention adjusts the central axis of the elbows at the ends of pipelines with different diameters to a state where the central axis is in a coincident state with the central axis of the flange by arranging an adjustment component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping mechanism 1 of the present invention.

[0023] Figure 4 The cross-sectional structure of the disc of the present invention is shown in FIG. Figure 1 .

[0024] Figure 5 The cross-sectional structure of the disc of the present invention is shown in FIG. Figure 2 .

[0025] Figure 6 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the angle adjustment mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the adjusting component 1 of the present invention.

[0028] Fig. 9 The three-dimensional structure of the present invention is shown in FIG. Figure 3 .

[0029] Fig.10 It is a structural schematic diagram of the welding mechanism of the present invention.

[0030] Fig.11 It is a schematic diagram of the central axis structure of the pipeline a and the flange b of the present invention.

[0031] Fig.12 It is a structural schematic diagram of the angle adjustment mechanism in the present invention adjusting the center axis of flange b to a state where the center axis of the elbow part is in a coincident state.

[0032] Fig.13 It is a structural schematic diagram of adjusting the central axis of the elbow of the pipe a to coincide with the flange b through the adjusting component for the pipes a of different diameters in the present invention.

[0033] Fig.14 It is a schematic diagram of the three-dimensional structure of the pipeline a and the flange b of the present invention.

[0034] The accompanying drawings are marked as follows: 1. Support mechanism; 11. Support seat; 12. Support roller; 2. Clamping mechanism 1; 21. Base; 22. Power component 1; 23. Screw rod 1; 24. Sliding seat; 25. Clamping plate; 3. Linear drive assembly; 4. Clamping mechanism 2; 41. Disc; 42. Ring; 43. Driving gear; 44. Driven gear; 45. Arc mouth; 46. Moving bar; 47. Round shaft; 48. Clamping plate; 5. Welding mechanism; 51. Rotating Rotating drive assembly; 52, connecting plate; 53, welding gun; 54, linear drive component; 6, angle adjustment mechanism; 61, fixed plate; 62, adjustment plate; 63, power component 2; 64, fixed plate; 65, dial shaft; 66, rectangular opening; 7, adjustment component 1; 71, power component 3; 72, screw rod 2; 73, moving seat; 8, adjustment component 2; 81, power component 4; 82, screw rod 3; 83, sliding seat; a, pipeline; b, flange. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0036] Refer to the instruction manual Figures 1 to 14 A directional assembly device for butt flanges, comprising: a support mechanism 1 and a clamping mechanism 2, wherein the support mechanism 1 is used to support a pipe a, the clamping mechanism 2 comprises two clamping plates 25 which can move synchronously in opposite directions, and the clamping mechanism 2 clamps the elbow of the pipe a through the two clamping plates 25; The directional assembly device also includes a linear drive component 3, which is tilted, and the tilt angle of the linear drive component 3 matches the tilt angle of the elbow at the end of the pipeline a. The output end of the linear drive component 3 is equipped with a clamping mechanism 2 4, which includes a plurality of clamping plates 48 that can move synchronously radially. The clamping mechanism 2 4 clamps and fixes the flange b through the plurality of clamping plates 48. The linear drive component 3 is used to drive the flange b to move and connect the flange b with the elbow at the end of the pipeline a. The clamping mechanism 2 4 is provided with a welding mechanism 5, and the welding mechanism 5 is used to weld the pipe a and the flange b.

[0037] It should be noted that the linear drive component 3 is a hydraulic cylinder, which drives the clamping mechanism 24 to move linearly through the hydraulic cylinder to connect the flange b with the end of the pipe a. A fixed baffle can be set at the end of the pipe a. When placing the pipe a, the end of the pipe a is made to contact and fit with the baffle to facilitate the positioning and placement of the pipe a. The number of clamping plates 48 is three, and the clamping plates 48 are V-shaped. The flange b is clamped and fixed by the synchronous radial movement of the three V-shaped clamping plates 48. The welding mechanism 5 can be a welding gun that can revolve. The pipe a and the flange b are welded by driving the welding gun to revolve.

[0038] The specific implementation scenario is as follows: first, pipe a is placed on the supporting mechanism 1, and pipe a is supported by the supporting mechanism 1, and the end of pipe a is made to contact the baffle to achieve the positioning and placement of pipe a, and then the two clamping plates 25 are driven to move synchronously in opposite directions by the clamping mechanism 1 2 to clamp the end of pipe a to achieve the fixation of pipe a, and then the three clamping plates 48 are driven to move synchronously radially by the clamping mechanism 2 4 to clamp and fix flange b, and then the flange b is driven to move by the hydraulic cylinder to connect flange b with the elbow at the end of pipe a, and finally the pipe a and flange b are welded by the welding mechanism 5 to drive the welding gun to revolve and weld the pipe a and flange b to achieve the precise positioning, assembly and welding of pipe a and flange b.

[0039] For further information, please refer to the attached manual. Figure 2 The supporting mechanism 1 includes a supporting seat 11 on which two supporting rollers 12 are rotatably provided. The pipe a is supported by placing the pipe a on the two supporting rollers 12 .

[0040] It should be noted that, by means of two support rollers 12, pipe a is placed on the two support rollers 12 to facilitate the support of pipe a, and by means of the rotatable setting of the two support rollers 12, when the ends of pipe a are clamped by a pair of clamping mechanisms 12, pipe a can be conveniently rotated on the two support rollers 12.

[0041] For further information, please refer to the attached manual. Figure 3 The clamping mechanism 2 also includes a base 21, on which a power component 22 is installed, and a screw rod 23 is installed at the output end of the power component 22. The screw rod 23 is provided with two groups of external threads, and the two groups of external threads have the same pitch and opposite rotation directions. Two slide seats 24 are slidably arranged on the base 21, and the two groups of external thread slide seats 24 are threadedly connected with the corresponding slide seats 24, and two clamping plates 25 are installed on the corresponding slide seats 24.

[0042] It should be noted that the power component 22 is a motor, which drives the screw rod 23 to rotate. Since two groups of external threads with the same pitch and opposite rotation directions are arranged on the outside of the screw rod 23, and the two groups of external threads are threadedly connected with the corresponding slide seat 24, the two clamping plates 25 can be driven to move synchronously in opposite directions to achieve the clamping and fixation of the elbow at the end of the pipe a. In addition, due to the elbow setting at the end of the pipe a, the elbow at the end of the pipe a can be ensured to remain in an upward state during clamping and fixation, so as to facilitate the docking of the flange b and the pipe a in the later stage.

[0043] For further information, please refer to the attached manual. Figure 4 and Figure 5 The clamping mechanism 2 also includes a disc 41, a ring 42 and a driving gear 43 are rotatably arranged in the disc 41, a driven gear 44 is installed on the ring 42, the driving gear 43 is meshed with the driven gear 44, a plurality of arc-shaped openings 45 are opened on the ring 42, a plurality of moving bars 46 are slidably arranged in the disc 41, and a plurality of moving bars 46 are all provided with round shafts 47, a plurality of round shafts 47 are movably connected in the corresponding arc-shaped openings 45, and a plurality of clamping plates 48 are respectively installed at the ends of the corresponding round shafts 47.

[0044] It should be noted that the driving gear 43 can be driven by a motor, and the motor can be installed on the disc 41. The motor drives the driving gear 43 to rotate, and drives the ring 42 under the action of the driven gear 44, so that the arc-shaped mouth 45 and the circular shaft 47 can cooperate with each other, and the three moving bars 46 can be driven by the moving bar 46 to move radially synchronously, so that the three moving bars 46 can drive the three clamping plates 48 to clamp and center the flange b.

[0045] In the above technical scheme, the flange b after centering and clamping is driven to move by setting an inclined linear drive component 3, and the flange b is connected to the pipe a. However, when assembling and welding the pipe a with different inclination angles of the end elbows, due to their different inclination angles, when the flange b after centering and clamping is driven to move for docking by the linear drive component 3, the flange b and the pipe a cannot be accurately docked. For this reason, the present invention also proposes an angle adjustment mechanism 6, which is used to adjust the inclination angle of the linear drive component 3 to maintain the same inclination angle as the end elbow of the pipe a when assembling and welding the flange b and the pipe a with different inclination angles of the end elbows.

[0046] For details, please refer to the attached manual. Figure 6 and Figure 7The angle adjustment mechanism 6 includes a fixed plate 61, an adjustment plate 62 is rotatably arranged on the fixed plate 61, a power component 2 63 is installed on the fixed plate 61, a fixed disk 64 is installed on the output end of the power component 2 63, a shift shaft 65 is installed on the fixed disk 64, a rectangular opening 66 is opened on the adjustment plate 62, the shift shaft 65 is movably arranged in the rectangular opening 66, and the linear drive assembly 3 is installed on the adjustment plate 62.

[0047] It should be noted that the power component 2 63 is a motor, which drives the fixed plate 64 to rotate, so that the fixed plate 64 drives the dial shaft 65 to perform orbital motion, and the dial shaft 65 moves in the rectangular opening 66. Since the adjustment plate 62 is rotatably arranged, when the dial shaft 65 moves in the rectangular opening 66, the adjustment plate 62 can be adjusted by the dial shaft 65, and the linear drive component 3 is installed on the adjustment plate 62 to achieve the angle adjustment of the linear drive component 3, so that the inclination angle of the linear drive component 3 maintains the same inclination angle as the end elbow of the pipe a.

[0048] It should also be noted that a1 and a2 are the center axes of the two ends of pipe a respectively, and b1 is the center axis of flange b. When welding pipe a and flange b with different inclination angles of the end elbows, the curvature of the end elbows is different. When positioning pipe a, the intersection positions of a1 and b1 will be different. Therefore, in order to ensure that a2 and b1 are in a coincident state after the linear drive component 3 is adjusted in angle, a linear drive mechanism needs to be set. The linear drive mechanism can be a cylinder. The cylinder drives the angle adjustment mechanism 6 to move horizontally, so that the intersection position of a1 and b1 can be aligned with the rotation point of the adjustment plate 62 in the front-to-back direction, so that the elbow part of pipe a and the center axis of flange b can remain in a coincident state.

[0049] In the above technical solution, by setting the angle adjustment mechanism 6, when assembling and welding the pipes a with different end elbow inclination angles, the inclination angle of the linear drive assembly 3 is adjusted to ensure the docking accuracy between the pipe a and the flange b. However, when docking the flange b with the pipes a of different calibers, it is necessary to first place the pipe a on the support mechanism 1, and then fix the pipe a through the clamping mechanism 2. If the two support seats 11 are fixed, then when placing and fixing the pipes a of different calibers, the height of a1 is different for the pipes a of different calibers. If it is positioned by the baffle, since the position of the pipe a is fixed, such as Fig. 9 As shown, a2 and b1 of the elbow at the end of pipe a cannot remain in a coincident state, which will affect the docking accuracy during docking or even cause the docking to fail. Therefore, the present invention also proposes an adjustment component for adjusting the central axis of the elbow at the end of pipes of different diameters a to coincide with the central axis of flange b.

[0050] For details, please refer to the attached manual. Figure 8 The adjusting component is an adjusting component 1 7, and the adjusting component 1 7 includes a power component 3 71. The power component 3 71 is installed on the support seat 11, and a screw rod 2 72 is installed on the output end of the power component 3 71. Two movable seats 73 are slidably arranged on the support seat 11. The two support rollers 12 are respectively rotatably arranged on the corresponding movable seats 73, and the two movable seats 73 are both threadedly connected with the screw rod 2 72.

[0051] It should be noted that the power component three 71 is a motor, and two groups of external threads are provided on the outer side of the screw rod 2 72. The two groups of external threads have the same pitch and opposite rotation directions. The two movable seats 73 are respectively engaged with the corresponding external threads. By driving the motor to drive the screw rod 2 72 to rotate, the two supporting rollers 12 can be driven to move synchronously in opposite directions through the two movable seats 73 to adjust the distance between the two supporting rollers 12. Therefore, when placing the pipe a, by adjusting the distance between the two supporting rollers 12, it can be ensured that a1 of pipes a with different diameters is maintained at the same height, thereby ensuring that a2 and b1 of the elbow at the end of the pipe a remain in an overlapping state.

[0052] For details, please refer to the attached manual. Fig. 9 The adjusting component is an adjusting component 2 8, and the adjusting component 2 8 includes a power component 4 81. A screw rod 3 82 is installed at the output end of the power component 4 81. A sliding seat 83 is threadedly sleeved on the screw rod 3 82, and the supporting mechanism 1 and the clamping mechanism 1 2 are both installed on the sliding seat 83.

[0053] It should be noted that the power component four 81 is a motor, which drives the screw rod three 82 to rotate, so that the screw rod three 82 can drive the sliding seat 83 to move, so that the pipe a can be driven to move horizontally to adjust the position through the support mechanism 1 and the clamping mechanism 2 set on the sliding seat 83. By driving the pipe a to adjust the position, the pipe a is moved to keep a2 and b1 of the elbow at the end of the pipe a in an overlapping state.

[0054] It should also be noted that by setting the adjusting component 8, not only can the central axis of the elbow at the end of the pipe a of different calibers be adjusted to coincide with the central axis of the flange b in the pipe a of different calibers, but the baffle can also replace the function of the baffle. Since the baffle is used to make the end of the pipe a contact with the baffle to achieve the positioning of the pipe a, the mobile positioning of the pipe a can be achieved by driving the pipe a to move laterally to adjust the position.

[0055] It should also be noted that, by setting the adjustment component 28, not only can the central axis of the end elbow of the pipe a of different calibers be adjusted to coincide with the central axis of the flange b, but the function of the linear drive mechanism can also be replaced. When the pipe a and flange b with different inclination angles of the end elbows are welded, the curvature of the end elbows is different. When the pipe a is positioned, the intersection positions of a1 and b1 will be different. Therefore, in order to ensure that a2 and b1 are in a coincidence state after the linear drive component 3 is adjusted in angle, a linear drive mechanism is required to be set so that the intersection position of a1 and b1 can be aligned with the rotation point of the adjustment plate 62 in the front-to-back direction. However, by setting the adjustment component 28 to drive the pipe a to move the adjustment position laterally, the effect of keeping the intersection position of a1 and b1 aligned with the rotation point of the adjustment plate 62 in the front-to-back direction can also be achieved.

[0056] For further information, please refer to the attached manual. Fig.10 The welding mechanism 5 also includes a rotating drive component 51, which is mounted on the disc 41. A connecting plate 52 is mounted on the output end of the rotating drive component 51, and a welding gun 53 is slidably mounted on the connecting plate 52. A linear driving component 54 is also mounted on the connecting plate 52, and the output end of the linear driving component 54 is fixedly connected to the welding gun 53.

[0057] It should be noted that the rotary drive component 51 is a motor, and the linear drive component 54 is a cylinder. The motor drives the connecting plate 52 to revolve, thereby driving the welding gun 53 to revolve for welding operations. The cylinder can drive the welding gun 53 to move and adjust the position, so that the distance between the weld and the welding gun 53 can be easily adjusted, which is convenient for welding.

[0058] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A directional assembly device for butt flanges, characterized in that: include: A support mechanism (1) and a clamping mechanism (2), wherein the support mechanism (1) is used to support a pipe (a), and the clamping mechanism (2) comprises two clamping plates (25) that can move synchronously in opposite directions, and the clamping mechanism (2) clamps the elbow of the pipe (a) through the two clamping plates (25); The directional assembly device further comprises a linear drive component (3), the linear drive component (3) being arranged in an inclined manner, and the inclination angle of the linear drive component (3) matches the inclination angle of the elbow at the end of the pipeline (a), a clamping mechanism 2 (4) is installed at the output end of the linear drive component (3), the clamping mechanism 2 (4) comprises a plurality of clamping plates (48) capable of synchronous radial movement, the clamping mechanism 2 (4) clamps and fixes the flange (b) via the plurality of clamping plates (48), and the linear drive component (3) is used to drive the flange (b) to move and connect the flange (b) with the elbow at the end of the pipeline (a); The second clamping mechanism (4) is provided with a welding mechanism (5), and the welding mechanism (5) is used to weld the pipeline (a) and the flange (b).

2. A directional assembly device for butt flanges according to claim 1, characterized in that: The support mechanism (1) comprises a support seat (11), on which two support rollers (12) are rotatably arranged, and the pipeline (a) is supported by placing the pipeline (a) on the two support rollers (12).

3. A directional assembly device for butt flanges according to claim 2, characterized in that: The clamping mechanism (2) further comprises a base (21), a power component (22) being mounted on the base (21), a screw (23) being mounted on the output end of the power component (22), two sets of external threads being arranged on the screw (23), the two sets of external threads having the same pitch and opposite rotation directions, two slide seats (24) being slidably arranged on the base (21), the two sets of external thread slide seats (24) being threadedly connected to corresponding slide seats (24), and two clamping plates (25) being mounted on corresponding slide seats (24).

4. A directional assembly device for butt flanges according to claim 3, characterized in that: The second clamping mechanism (4) further comprises a disk (41), a ring (42) and a driving gear (43) being rotatably arranged inside the disk (41), a driven gear (44) being mounted on the ring (42), the driving gear (43) being meshed with the driven gear (44), a plurality of arc-shaped openings (45) being opened on the ring (42), a plurality of moving bars (46) being slidably arranged inside the disk (41), and a plurality of moving bars (46) being respectively provided with circular shafts (47), a plurality of circular shafts (47) being movably connected in corresponding arc-shaped openings (45), and a plurality of clamping plates (48) being respectively mounted on the ends of corresponding circular shafts (47).

5. A directional assembly device for butt flanges according to claim 4, characterized in that: The directional assembly device further comprises an angle adjustment mechanism (6), wherein the angle adjustment mechanism (6) is used to adjust the inclination angle of the linear drive assembly (3) to maintain the same inclination angle as the end elbow of the pipeline (a).

6. A directional assembly device for butt flanges according to claim 5, characterized in that: The angle adjustment mechanism (6) comprises a fixed plate (61), an adjustment plate (62) is rotatably arranged on the fixed plate (61), a second power component (63) is mounted on the fixed plate (61), a fixed disk (64) is mounted on the output end of the second power component (63), a shifting shaft (65) is mounted on the fixed disk (64), a rectangular opening (66) is opened on the adjustment plate (62), the shifting shaft (65) is movably arranged in the rectangular opening (66), and the linear drive assembly (3) is mounted on the adjustment plate (62).

7. A directional assembly device for butt flanges according to claim 6, characterized in that: The directional assembly device also includes an adjustment component, which is used to adjust the central axis of the elbow at the end of the pipeline (a) with different diameters to coincide with the central axis of the flange (b).

8. A directional assembly device for butt flanges according to claim 7, characterized in that: The adjustment assembly is an adjustment component one (7), and the adjustment component one (7) includes a power component three (71). The power component three (71) is mounted on a support seat (11), and a screw rod two (72) is mounted on the output end of the screw rod two (71) of the power component three. Two movable seats (73) are slidably arranged on the support seat (11), and two support rollers (12) are respectively rotatably arranged on corresponding movable seats (73), and the two movable seats (73) are both threadedly connected to the screw rod two (72).

9. The directional assembly device for butt flange according to claim 7, characterized in that: The adjustment assembly is an adjustment component 2 (8), and the adjustment component 2 (8) comprises a power component 4 (81). A screw rod 3 (82) is installed at the output end of the power component 4 (81). A sliding seat (83) is provided on a threaded sleeve of the screw rod 3 (82). The support mechanism (1) and the clamping mechanism 1 (2) are both installed on the sliding seat (83).

10. A directional assembly device for butt flanges according to claim 8 or 9, characterized in that: The welding mechanism (5) further comprises a rotary drive assembly (51), the rotary drive assembly (51) being mounted on the disc (41), a connecting plate (52) being mounted on the output end of the rotary drive assembly (51), a welding gun (53) being slidably mounted on the connecting plate (52), a linear drive component (54) being mounted on the connecting plate (52), and an output end of the linear drive component (54) being fixedly connected to the welding gun (53).

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