Elliptical steel pipe column manufacturing auxiliary device and manufacturing process thereof

Abstract

The invention relates to the technical field of oval steel pipe column manufacturing, and discloses an oval steel pipe column manufacturing auxiliary device and a manufacturing process thereof.The oval steel pipe column manufacturing auxiliary device comprises a plurality of supporting frames and positioning rods, the supporting frames are provided with horizontally-arranged guide rods, and the supporting columns are installed on the guide rods in an up-down sliding mode and distributed along the guide rods at intervals; the positioning rod and the supporting column are vertically and fixedly installed in the middle of the guide rod, the positioning rod and the supporting column are arranged in parallel, the two shaping blocks are symmetrically distributed on the two sides of the positioning rod, the upper surfaces of the shaping blocks are provided with cambered surfaces or stepped surfaces, and the radius size of the cambered surfaces is the same as the outer diameter of the semicircular pipe; the upper ends of the multiple supports are distributed from low to high with the positioning rod as the reference, the upper ends of the multiple supporting columns are used for supporting and positioning the semicircular pipe, and the fixing mechanism is used for fixing the supporting columns. The device can adapt to semicircular pipes with different outer diameters, can also be used for supporting an H-shaped beam, and is convenient for welding the H-shaped beam.

Description

Technical Field

[0001] The present application relates to the technical field of elliptical steel pipe column manufacturing, and in particular to an elliptical steel pipe column manufacturing auxiliary device and a manufacturing process thereof. Background Art

[0002] As large-scale infrastructure projects continue to increase, elliptical steel tube columns are widely used in bridges. Researching the manufacturing process of elliptical columns, compiling and promoting the manufacturing method of elliptical steel tube columns has high social value and can significantly improve on-site construction efficiency, energy and material conservation, and significantly improve green environmental protection.

[0003] Reference Figure 1 In view of the structural characteristics of the elliptical column with thick wall and small diameter, a complete set of manufacturing process is formulated and adopted from steel plate cutting, H-beam 200 assembly, semi-circular tube 100 rolling and forming, installation of inner ring plate 110 in semi-circular tube 100, column assembly, accessory installation, column completion inspection and anti-corrosion coating. The semi-circular tube 100 rolling and docking require the use of a tooling frame, which includes multiple arc plates 300. A fixing seat is installed at the lower end of the arc plate 300, and two adjacent arc plates 300 are connected by a steel plate 310. When the specifications of the elliptical steel tube column are different, tooling frames of various sizes must be made.

[0004] With respect to the above-mentioned related technologies, it is found that the overall tooling tire frame occupies a relatively large area and cannot adapt to semicircular tubes with different outer diameters. Summary of the invention

[0005] In order to improve the above technical problems, the present application provides an elliptical steel pipe column manufacturing auxiliary device and a manufacturing process thereof.

[0006] In the first aspect, the present application provides an auxiliary device for manufacturing an elliptical steel pipe column, which adopts the following technical solution: The auxiliary device for manufacturing an elliptical steel pipe column comprises: a plurality of support frames arranged at intervals, wherein the support frames are provided with horizontally arranged guide rods, The support columns are slidably mounted on the guide rod and are spaced apart along the length of the guide rod. The positioning rod is vertically fixedly installed at the middle position of the guide rod, and the positioning rod and the support column are arranged in parallel. Two shaping blocks are symmetrically distributed on both sides of the positioning rod and are located below the guide rod. The upper surface of the shaping block is provided with an arc surface or a stepped surface, and the radius of the arc surface is the same as the outer diameter of the semicircular tube. The lower end of the support column abuts against the arc surface, so that the upper ends of the multiple supports are distributed from low to high based on the positioning rod. The upper ends of the multiple support columns are used to support the semicircular tube. A fixing mechanism is installed on the support frame and is used to fix the support column.

[0007] By adopting the above technical solution, the horizontally arranged guide rod provides a linear sliding track for the support column, ensuring the consistency and horizontality of the moving trajectory of each support column, avoiding the forming error of the elliptical steel pipe column caused by the deviation of the support column, the positioning rod is vertically fixed to the middle of the guide rod, and the shaping blocks are symmetrically distributed on both sides of the positioning rod. The positioning rod serves as the reference axis for adjusting the height of the support column, ensuring that all support columns extend to both sides in a symmetrical distribution. The arc radius of the shaping block is consistent with the outer diameter of the semicircular tube. When the lower end of the support column abuts the arc surface, the upper end forms a continuous arc The supporting surface directly fits the outer wall of the semicircular tube to realize the multi-point positioning function and prevent the steel plate from being deformed during welding. The arc radius of the forming block can be pre-determined according to the outer diameter of the semicircular tube, so that when the lower end of the support column abuts against the arc surface, the upper end also adaptively forms a corresponding continuous arc-shaped supporting surface. When the support column and the forming block are in contact, the support column is locked by a fixing mechanism to keep the support column stably installed, thereby ensuring the stability of the support column during welding. If the upper surface of the forming block is a stepped surface, the auxiliary device can also be used to support the H-beam, which is convenient for welding the H-beam.

[0008] Optionally, the fixing components include: A fixing rod, the fixing rod extending along the length direction of the guide rod, the fixing rod being slidably mounted on the guide rod, A fixed block is fixedly mounted on the fixed rod, and the fixed block corresponds to the support column one by one. A fixing member is used to fix the fixing rod.

[0009] By adopting the above technical solution, each fixing block is matched one by one with the support column to ensure that the applied fixing force is evenly distributed, avoiding deformation or displacement of the support column caused by local stress concentration. The fixing rod slides along the length direction of the guide rod to cover all the support columns at one time. By moving a single component, multiple support columns can be fixed synchronously, which significantly improves operational efficiency, and the fixing rod is then fixed and positioned with a fixing piece.

[0010] Optionally, a clamping mechanism is installed on the outer wall of the support column, and the clamping mechanism includes: The first clamping plate is rotatably mounted on a side wall of the support column, The second clamping plate is rotatably mounted on the other side wall of the support column, and the first clamping plate and the second clamping plate are used to clamp the steel plate after being rotated upward. Two reinforcement rods are provided, which are respectively passed through the first clamping plate and the second clamping plate, and the reinforcement rods are also passed through the support column. Nuts are threadedly mounted on both ends of the reinforcing rod and are used to fix the first clamping plate and the second clamping plate.

[0011] By adopting the above technical scheme, some support columns in the auxiliary device can support the web of the H-beam, and the first clamping plate and the second clamping plate on some support columns can be rotated upward to form a clamping space to clamp the two wing plates of the H-beam to meet the clamping requirements of steel plates of different thicknesses. Rapid clamping and release can be achieved through rotation. The reinforcement rod runs through the clamping plate and the support column, and the nuts at both ends are tightened to generate axial pressure, so that the clamping plate and the steel plate fit tightly. The steel plate serving as the wing plate can remain vertical to the web, and it can also prevent the steel plate from slipping or warping during welding.

[0012] Optionally, a connecting rod is connected between the first clamping plate and the supporting column, the connecting rod is fixedly mounted on the supporting column, the first clamping plate is slidably mounted on the connecting rod via a slider, and the first clamping plate and the slider are rotationally connected.

[0013] By adopting the above technical solution, the connecting rod is fixed on the support column, providing a sliding track for the slider, so that the first clamping plate can move along the axial direction of the connecting rod to expand the clamping range. The slider is rotatably connected to the first clamping plate to realize the first clamping plate angle fine-tuning function, further improving the adaptability to irregular steel plates.

[0014] Optionally, the first clamping plate and the second clamping plate of two adjacent support columns are detachably connected.

[0015] By adopting the above technical solution, if the first clamping plate and the second clamping plate are idle, the clamping plates of adjacent support columns are connected by pins or bolts, and multiple support columns form a connection relationship, thereby enhancing the stability of the support columns when supporting the steel structure.

[0016] Optionally, the auxiliary device further comprises a driving member for driving the shaping block to approach or move away from the positioning rod.

[0017] By adopting the above technical solution, the shaping block is driven by the driving member to move closer to or away from the positioning rod, which is more labor-saving and can quickly slide different shaping blocks, thereby changing the inclination angle of the arc surface abutted by the lower end of the support column, thereby adjusting the distribution curvature of the upper end of the support column to adapt to the manufacturing needs of elliptical steel pipe columns with different major axis / minor axis ratios.

[0018] Optionally, the auxiliary device further includes a support member, wherein the support member corresponds to the support column one-to-one, and when the lower end of the support column abuts against the arc surface, the support member is used to support the support column.

[0019] By adopting the above technical solution, when the lower end of the support column abuts against the arc surface of the forming block, the support member (such as a jack or a pad) presses the support column from the bottom to share the welding load and prevent the support column from bending and deforming due to excessive force. It is especially suitable for high-strength processing scenarios of large-size steel pipe columns.

[0020] In the second aspect, the present application provides a manufacturing process for an elliptical steel pipe column, which adopts the following technical solution: The elliptical steel pipe column manufacturing process is manufactured using the above-mentioned elliptical steel pipe column manufacturing auxiliary device, and includes the following steps: S1. Steel plate cutting and blanking. All steel plates are purchased in fixed lengths. The required steel plate size is simulated by computer software to determine the size of the purchased steel plate, which reduces material loss and improves the utilization rate of the steel plate. S2, H-beam assembly, locate the web position on the two wing plates, assemble the wing plates and the web after the wing plates are marked, install two shaping blocks based on the positioning rod, the upper surface of the shaping block is a stepped surface, the lower ends of the support columns are in contact with the upper surface of the shaping block, the upper ends of two support columns are lower than the other support columns, the web is placed on a plurality of support columns with higher upper ends, the two wing plates are respectively installed on the two support columns, the parallelism of the two wing plates and the verticality of the wing plates and the web are controlled by the clamping mechanism, the wing plates and the web are vertically spliced, and the wing plates and the web are fixed by welding; S3, semi-circular tube rolling, two shaping blocks are installed with the positioning rod as the reference, the upper surface of the shaping block is an arc surface, after the support column slides to the target position along the guide rod, the lower end abuts the arc surface of the shaping block, guided by the curvature of the arc surface, the upper end of the support column automatically forms a continuous elliptical support surface, and then the support column is fixed by a fixing mechanism. After the semi-circular tube is rolled and formed according to the support column, the inner wall of the semi-circular tube is fixed by welding of a steel pipe to keep the semi-circular tube in a formed state. S4, repeat step S3 to roll two semicircular tubes. S5. Place a semicircular tube on multiple supporting columns, place the sample inner ring plate into the semicircular tube by crane, and adjust the placement position of the inner ring plate so that the inner ring plate is perpendicular to the inner wall of the semicircular tube; S6, semi-circular tube and H-beam are assembled, the flange of semi-circular tube and H-beam are butted, the inner ring plate and web of H-beam are butted, S7. Install another semicircular tube on the H-beam. S8, the semicircular tube, inner ring plate and H-beam are welded and fixed, and the elliptical steel tube column is assembled; S8. Hoist the elliptical steel pipe column and weld the outer bracket to the outer wall of the elliptical steel pipe column; S9, installation and welding of other accessories; S10. Anti-corrosion treatment.

[0021] In summary, the present application includes at least one of the following beneficial effects: 1. Through the linkage design of the shaped block arc surface / step surface and the supporting column sliding structure, one machine can be used for multiple purposes. When the shaped block adopts an arc surface, the lower end of the supporting column automatically forms a continuous elliptical surface after abutting the arc surface, accurately matching the outer diameter of the semicircular tube; when the shaped block is switched to a step surface, the supporting column can be adjusted to a step height distribution to adapt to the positioning requirements of non-curved components such as H-beams; by replacing shaped blocks with different arc surface radii, it can adapt to semicircular tubes with different outer diameters, and can quickly adapt to the manufacture of elliptical steel pipe columns with different major axis / minor axis ratios, reducing the overall replacement frequency of traditional tooling frames; 2. The clamping mechanism in the auxiliary device allows the first clamping plate and the second clamping plate to rotate upward to form a clamping space, clamping the two wing plates of the H-beam to meet the clamping requirements of steel plates of different thicknesses. At the same time, the design of the connecting rod and slider on the support column allows the first clamping plate to move along the axial direction of the connecting rod and fine-tune the angle, further improving the adaptability to irregular steel plates. In addition, the clamping plates of adjacent support columns are detachably connected, which enhances the stability of the support column when supporting the steel structure. The addition of the support member tightens the support column from the bottom, shares the welding load, and avoids bending and deformation of the support column due to excessive force. These designs together improve the stability and flexibility of the steel structure support. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an exploded schematic diagram of the overall structure of the related technology; Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 3 is a front view of a supporting semicircular tube according to an embodiment of the present application; Figure 4 is a cross-sectional view of an embodiment of the present application showing that a fixed rod is slidably connected via a slider and a guide rod; Figure 5 is a front view of a supporting H-beam according to an embodiment of the present application; Figure 6 yes Figure 5 An enlarged schematic diagram of point B; Figure 7 yes Figure 2 A magnified schematic diagram of point A; Figure 8 It is a schematic diagram of the structure of an embodiment of the present application in which the lower end of the support frame is lower than the workshop floor.

[0023] Explanation of the reference numerals: 10, support frame; 20, guide rod; 21, guide groove; 30, support column; 31, connecting rod; 32, slider; 40, positioning rod; 50, shaping block; 51, driving member; 60, fixing mechanism; 61, fixing rod; 62, fixing block; 63, fixing member; 64, sliding block; 70, clamping mechanism; 71, first clamping plate; 72, second clamping plate; 73, reinforcing rod; 74, nut; 75, through groove; 76, screw; 80, support member; 100, semicircular tube; 110, inner ring plate; 200, H-beam; 210, web plate; 220, wing plate; 300, arc plate; 310, steel plate. DETAILED DESCRIPTION

[0024] The following is combined with Figure 2-8 This application is described in further detail.

[0025] In a first aspect, an embodiment of the present application discloses an auxiliary device for manufacturing an elliptical steel pipe column.

[0026] Reference Figure 2 The elliptical steel pipe column manufacturing auxiliary device of this embodiment includes a support frame 10, a guide rod 20, a support column 30, a positioning rod 40, a shaping block 50, a fixing mechanism 60 and a clamping mechanism 70.

[0027] Reference Figure 2 The support frame 10 adopts a rectangular frame structure. A parallel guide rod 20 is welded on the top of the support frame 10, and the cross section of the guide rod 20 is a rectangular structure. Multiple support frames 10 are arranged at intervals to support the same elliptical steel pipe column. The support column 30 is a rectangular steel pipe. There are multiple support columns 30 spaced apart along the length direction of the guide rod 20. The support columns 30 have equal heights. The guide rod 20 is provided with a guide groove 21 for the support column 30 to be inserted and slide up and down. The support column 30 and the guide rod 20 have a certain friction and need external force to push.

[0028] Reference Figure 2 and Figure 3 The positioning rod 40 is vertically welded and fixed to the middle of the guide rod 20, and is arranged parallel to the support column 30. The two shaping blocks 50 are symmetrically arranged below the guide rod 20 on both sides of the positioning rod 40. The shaping blocks 50 are made of cast iron, and the upper surface is processed with an arc surface or a stepped surface. The radius of the arc surface is consistent with the outer diameter of the target semicircular tube 100 (for example, R=800mm). The side wall of the shaping block 50 is detachably connected with a driving member 51 (such as an electric push rod). The driving member 51 is fixed on the crossbeam of the support frame 10, and can drive the shaping block 50 to move horizontally along the guide rail to achieve position adjustment of the two shaping blocks 50. The end of the electric push rod is connected to a connecting plate, and the connecting plate and the shaping block 50 are screwed.

[0029] Reference Figure 2 and Figure 4The fixing mechanism 60 includes a fixing rod 61, a fixing block 62 and a fixing member 63. The fixing rod 61 is arranged parallel to the guide rod 20 and is slidably installed on the side of the guide rod 20 through a sliding block 64. The fixing block 62 is an L-shaped steel plate 310, which is welded on the fixing rod 61 and corresponds to each support column 30 one by one. The fixing block 62 slides on the upper surface of the guide rod 20. The fixing member 63 is a hand-tightened bolt, which passes through the fixing rod 61 and is threadedly connected to the side of the support column 30. When the fixing block 62 abuts against the side wall of the support column 30, the fixing rod 61 is fixed, thereby realizing the synchronous locking of multiple support columns 30. Before determining the position of the shaping block 50, all the support columns 30 can be fixed first, so that the lower end of the support column 30 is kept away from the ground, which is convenient for the installation and positioning of the shaping block 50.

[0030] Reference Figure 5 When the upper surface of the shaping block 50 is a stepped surface, the support column 30 is used to support and fix the H-beam 200. The clamping mechanism 70 is installed on the side wall of the support column 30, and the clamping mechanism 70 is close to the upper end of the support column 30, and is used to clamp the wing plate 220 of the H-beam 200.

[0031] Reference Figure 6 The clamping mechanism 70 includes a first clamping plate 71, a second clamping plate 72, a reinforcing rod 73 and a nut 74. The first clamping plate 71 and the second clamping plate 72 are respectively rotatably mounted on the two side walls of the support column 30. The first clamping plate 71 and the second clamping plate 72 of the support column 30 are mutually displaced, so that the first clamping plate 71 and the second clamping plate 72 of the two adjacent support columns 30 do not interfere with each other when they rotate simultaneously. When it is necessary to clamp the wing plate 220, the first clamping plate 71 and the second clamping plate 72 are rotated upward to a suitable position to form a clamping space. The reinforcing rod 73 is a double-headed screw 76. Since the first clamping plate 71 and the second clamping plate 72 are mutually displaced, two reinforcing rods 73 are correspondingly provided. The reinforcing rod 73 horizontally penetrates the first clamping plate 71 and the reserved hole of the support column 30. The two ends of the reinforcing rod 73 are tightened by nuts 74 to fix the first clamping plate 71. The fixing method of the second clamping plate 72 is the same, so that the first clamping plate 71 and the second clamping plate 72 tightly clamp the steel plate 310.

[0032] In order to further improve the flexibility of the clamping mechanism 70, a connecting rod 31 is further provided between the first clamping plate 71 and one side of the support column 30. The connecting rod 31 is hinged to the first clamping plate 71 through a slider 32. The slider 32 slides on the connecting rod 31, so that the first clamping plate 71 can slide and rotate along the connecting rod 31. The second clamping plate 72 is rotatably connected to the other side of the support column 30 through a hinge. The cooperation between the first clamping plate 71 and the second clamping plate 72 can adapt to different thicknesses of the wing plates 220.

[0033] Reference Figure 7The side walls of the first clamping plate 71 and the second clamping plate 72 are both provided with through grooves 75. When the first clamping plate 71 and the second clamping plate 72 are idle, the clamping plates of adjacent support columns 30 can be detachably connected by a connecting piece. The connecting piece is specifically a screw 76. The screw 76 passes through the through grooves 75 of the first clamping plate 71 and the second clamping plate 72, and is threadedly connected with a nut 74, so that the first clamping plate 71 and the second clamping plate 72 are connected together, thereby enhancing the connection relationship between the support columns 30 and the stability of the support columns 30 when supporting.

[0034] In addition, refer to Figure 2 , a support member 80 (such as a jack or a pad) is provided which corresponds to the support column 30. The embodiment of the present application preferably adopts a jack to adapt to support columns 30 of different heights. When the lower end of the support column 30 abuts against the arc surface of the shaping block 50, the support member 80 presses the support column 30 from the bottom to share the load of the entire steel structure and prevent the support column 30 from bending and deforming.

[0035] Reference Figure 8 Since the support column 30 has a certain height, in order to facilitate the placement of the semicircular tube 100 or the H-beam 200, a groove is opened on the workshop floor, and the lower end of the support frame 10 and the shaping block 50 are installed on the bottom of the groove. The lower end of the support frame 10 and the lower end of the support column 30 are lower than the workshop floor, and the upper end of the support column 30 extends out of the groove. The groove is large in size, which is convenient for people to enter and exit.

[0036] The implementation principle of the auxiliary device for manufacturing elliptical steel pipe columns in the embodiment of the present application is: The semicircular tube 100 and the H-beam 200 are precisely positioned and quickly adapted through a modular adjustable structure. The positioning rod 40 is vertically fixed to the middle of the guide rod 20 as a reference for the symmetry axis. Two shaping blocks 50 are symmetrically distributed on both sides of the positioning rod 40, and the radius of their arc surfaces is strictly matched with the outer diameter of the semicircular tube 100. After the support column 30 slides to the target position along the guide rod 20, its lower end abuts against the arc surface of the shaping block 50. Guided by the curvature of the arc surface, the upper end of the support column 30 automatically forms a continuous elliptical support surface. When the shaping block 50 is switched to a stepped surface, the support column 30 can be adjusted to a stepped height distribution. , adapted to the welding positioning requirements of the wing plate 220 of the H-beam 200, and in conjunction with the clamping mechanism 70, the wing plate 220 can be clamped to keep the wing plate 220 and the web 210 in a vertical relationship; the lower end of the support column 30 abuts against the arc surface of the shaping block 50, directly transferring 60%-80% of the vertical load to the shaping block 50, and the support member 80 (such as a hydraulic jack) lifts the support column 30 from the bottom to prevent the support column 30 from bending and deformation. The clamping plates of adjacent support columns 30 are connected and fixed by screws 76 and nuts 74 to form a grid structure, so that the local stiffness of multiple support columns 30 is improved.

[0037] In a second aspect, the embodiments of the present application disclose a manufacturing process for an elliptical steel pipe column.

[0038] The elliptical steel pipe column manufacturing process is manufactured using the above-mentioned elliptical steel pipe column manufacturing auxiliary device, and includes the following steps: S1, cutting and blanking of the steel plates 310. All the steel plates 310 are purchased as fixed-length steel plates 310. The required size of the steel plates 310 is simulated by computer software to determine the size of the purchased steel plates 310, thereby reducing material loss and improving the utilization rate of the steel plates 310. S2, assembling the H-beam 200, locating the position of the web 210 on the two wing plates 220, assembling the wing plates 220 and the web 210 after marking the wing plates 220, installing two shaping blocks 50 based on the positioning rod 40, the upper surface of the shaping block 50 is a stepped surface, the lower ends of the support columns 30 abut against the upper surface of the shaping block 50, wherein the upper ends of two support columns 30 are lower than the other support columns 30, placing the web 210 on a plurality of support columns 30 with higher upper ends, and installing the two wing plates 220 on the two support columns 30 respectively, controlling the parallelism of the two wing plates 220 and the verticality of the wing plates 220 and the web 210 by the clamping mechanism 70, the wing plates 220 and the web 210 are vertically spliced, and the wing plates 220 and the web 210 are fixed by welding; S3, the semicircular tube 100 is rolled, and two shaping blocks 50 are installed with the positioning rod 40 as the reference. The upper surface of the shaping block 50 is an arc surface. After the support column 30 slides to the target position along the guide rod 20, the lower end abuts against the arc surface of the shaping block 50. Guided by the curvature of the arc surface, the upper end of the support column 30 automatically forms a continuous elliptical support surface, and then the support column 30 is fixed by the fixing mechanism 60. After the semicircular tube 100 is rolled and formed according to the support column 30, the inner wall of the semicircular tube 100 is fixed by welding of the steel pipe to keep the semicircular tube 100 in the formed state. S4, repeat step S3 to roll a plurality of semicircular tubes 100, S5, placing the semicircular tube 100 on a plurality of support columns 30, placing the sample inner ring plate 110 into the semicircular tube 100 by crane, and adjusting the placement position of the inner ring plate 110 so that the inner ring plate 110 is kept perpendicular to the inner wall of the semicircular tube 100; S6, the semicircular tube 100 and the H-beam 200 are assembled, the semicircular tube 100 and the flange 220 of the H-beam 200 are abutted, and the inner ring plate 110 and the web 210 of the H-beam 200 are abutted, S7, install another semicircular tube 100 on the H-beam 200, S8, the semicircular tube 100, the inner ring plate 110 and the H-beam 200 are welded and fixed, and the assembly of the elliptical steel tube column is completed; S8. Hoist the elliptical steel pipe column and weld the outer bracket to the outer wall of the elliptical steel pipe column; S9, installation and welding of other accessories; S10. Anti-corrosion treatment.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An auxiliary device for manufacturing an elliptical steel pipe column, characterized in that: include: A plurality of support frames (10) are arranged at intervals, and the support frames (10) are provided with horizontally arranged guide rods (20). The support columns (30) are slidably mounted on the guide rod (20) up and down and are spaced apart along the length direction of the guide rod (20). A positioning rod (40) is vertically fixedly mounted at the middle of the guide rod (20), and the positioning rod (40) and the support column (30) are arranged in parallel. Two shaping blocks (50) are symmetrically distributed on both sides of the positioning rod (40) and are located below the guide rod (20). The upper surface of the shaping block (50) is provided with an arc surface or a stepped surface. The radius of the arc surface is the same as the outer diameter of the semicircular tube (100). The lower end of the support column (30) abuts against the arc surface, so that the upper ends of the plurality of support columns (30) are distributed from low to high with the positioning rod (40) as a reference. The upper ends of the plurality of support columns (30) are used to support the semicircular tube (100). A fixing mechanism (60) is mounted on the support frame (10) and is used to fix the support column (30).

2. The elliptical steel pipe column manufacturing auxiliary device according to claim 1 is characterized in that: The fixed components include: a fixing rod (61), the fixing rod (61) extending along the length direction of the guide rod (20), the fixing rod (61) being slidably mounted on the guide rod (20), A fixing block (62) is fixedly mounted on the fixing rod (61), and the fixing block (62) corresponds to the supporting column (30) in a one-to-one manner. A fixing member (63) is used to fix the fixing rod (61).

3. The elliptical steel pipe column manufacturing auxiliary device according to claim 1 is characterized in that: A clamping mechanism (70) is installed on the outer wall of the support column (30), and the clamping mechanism (70) comprises: The first clamping plate (71) is rotatably mounted on a side wall of the support column (30). The second clamping plate (72) is rotatably mounted on the other side wall of the support column (30), and the first clamping plate (71) and the second clamping plate (72) are used to clamp the steel plate (310) after being rotated upward. Two reinforcement rods (73) are provided, and are respectively passed through the first clamping plate (71) and the second clamping plate (72). The reinforcement rods (73) are also passed through the support column (30). Nuts (74) are threadedly mounted on both ends of the reinforcing rod (73) and are used to fix the first clamping plate (71) and the second clamping plate (72).

4. The elliptical steel pipe column manufacturing auxiliary device according to claim 3 is characterized in that: A connecting rod (31) is connected between the first clamping plate (71) and the support column (30); the connecting rod (31) is fixedly mounted on the support column (30); the first clamping plate (71) is slidably mounted on the connecting rod (31) via a slider (32); and the first clamping plate (71) and the slider (32) are rotatably connected.

5. The elliptical steel pipe column manufacturing auxiliary device according to claim 4 is characterized in that: The first clamping plate (71) and the second clamping plate (72) of two adjacent support columns (30) are detachably connected.

6. The elliptical steel pipe column manufacturing auxiliary device according to claim 1, characterized in that: The auxiliary device also includes a driving member (51) for driving the shaping block (50) to move closer to or farther from the positioning rod (40).

7. The elliptical steel pipe column manufacturing auxiliary device according to claim 1 is characterized in that: The auxiliary device further comprises a support member (80), the support member (80) corresponding to the support column (30) on a one-to-one basis, and when the lower end of the support column (30) abuts against the arc surface, the support member (80) is used to support the support column (30).

8. The manufacturing process of the elliptical steel pipe column is characterized in that: The auxiliary device for manufacturing an elliptical steel pipe column according to any one of claim 5 comprises the following steps: S1. Cutting and blanking of the steel plates (310). All the steel plates (310) are purchased as fixed-length steel plates (310). The required size of the steel plates (310) is simulated by computer software to determine the size of the purchased steel plates (310), thereby reducing material loss and improving the utilization rate of the steel plates (310); S2, assembling the H-shaped beam (200), locating the position of the web (210) on the two wing plates (220), assembling the wing plates (220) and the web (210) after marking the wing plates (220), installing two shaping blocks (50) based on the positioning rod (40), the upper surface of the shaping block (50) is a stepped surface, the lower end of the support column (30) is in contact with the upper surface of the shaping block (50), and the upper ends of the two support columns (30) are lower. On other support columns (30), the web plate (210) is placed on the support columns (30) with the highest upper ends, the two wing plates (220) are respectively mounted on the two support columns (30), the parallelism of the two wing plates (220) and the verticality of the wing plates (220) and the web plate (210) are controlled by a clamping mechanism (70), the wing plates (220) and the web plate (210) are vertically spliced, and the wing plates (220) and the web plate (210) are fixed by welding; S3, the semicircular tube (100) is rolled, and two shaping blocks (50) are installed with the positioning rod (40) as a reference. The upper surface of the shaping block (50) is an arc surface. After the support column (30) slides along the guide rod (20) to the target position, the lower end abuts against the arc surface of the shaping block (50). Guided by the curvature of the arc surface, the upper end of the support column (30) automatically forms a continuous elliptical support surface. The support column (30) is then fixed by a fixing mechanism (60). After the semicircular tube (100) is rolled and formed according to the support column (30), the inner wall of the semicircular tube (100) is fixed by welding a steel pipe so that the semicircular tube (100) remains in a formed state. S4, repeat step S3 to roll two semicircular tubes (100), S5, placing a semicircular tube (100) on a plurality of support columns (30), placing a sample inner ring plate (110) into the semicircular tube (100) by crane, and adjusting the placement position of the inner ring plate (110) so that the inner ring plate (110) and the inner wall of the semicircular tube (100) remain vertical; S6, the semicircular tube (100) and the H-shaped beam (200) are assembled, the flanges (220) of the semicircular tube (100) and the H-shaped beam (200) are abutted, and the inner ring plate (110) and the web plate (210) of the H-shaped beam (200) are abutted, S7. Install another semicircular tube (100) on the H-beam (200). S8, the semicircular tube (100), the inner ring plate (110), and the H-beam (200) are welded and fixed, and the assembly of the elliptical steel tube column is completed; S8. Hoist the elliptical steel pipe column and weld the outer bracket to the outer wall of the elliptical steel pipe column; S9, installation and welding of other accessories; S10. Anti-corrosion treatment.

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