Steel pipe tubular joint welding device

Abstract

The utility model discloses a steel pipe tubular joint welding device which comprises annular supports, connecting rods, hydraulic supporting columns and a track, the two annular supports are connected through the connecting rods with the adjustable length, each annular support is arranged on the track through the hydraulic supporting columns, the hydraulic supporting columns horizontally move along the track, and the positions of the two annular supports are adjusted. The hydraulic supporting columns drive the annular supports to move up and down so as to adjust the height of the two annular supports. According to the utility model, the to-be-welded component is stably clamped, the rotation angle is accurately controlled, and the welding precision is high; the structure is simple, all parts are easy to mount and dismount, and transportation and maintenance are convenient; when the number of components to be welded at the same node is large, the components do not need to be hoisted repeatedly, welding work can be completed continuously, and machining time is saved; when components with different sizes, section shapes or certain curvatures are clamped, the whole welding device does not need to be replaced, and the requirements for clamping different components can be met by adjusting or replacing the sizes of the connecting rod and the telescopic supporting rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding auxiliary tools, and in particular relates to a steel pipe intersecting node welding device. Background Art

[0002] An intersecting node refers to a node in which two or more components are connected together by passing through or crossing each other in structural design and construction. In practical applications, intersecting nodes are widely used because they can enhance the stability and bearing capacity of the connection, and are very common in steel structure design and construction. The existing welding process for intersecting nodes in steel structures usually involves manually docking the two components to be welded, and then welding them with a welding gun. In addition, the angle and rotation angle of the two components need to be manually adjusted. Therefore, when welding intersecting nodes in steel structures, the labor intensity of construction workers is high, and manual adjustments and docking before welding will inevitably lead to deviations. At the same time, there are hidden dangers to construction safety during the welding process. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a steel pipe intersecting node welding device which solves the problems of difficult clamping, low welding precision, complicated operation and small application range in the existing welding devices.

[0004] Technical solution: In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0005] A steel pipe intersecting node welding device includes an annular bracket, a connecting rod, a hydraulic support column and a track. Two annular brackets are connected by a connecting rod with adjustable length. Each annular bracket is set on the track through a hydraulic support column. The hydraulic support column moves horizontally along the track to adjust the position of the two annular brackets. The extension and retraction of the hydraulic support column drives the annular brackets to move up and down to adjust the height of the two annular brackets and the horizontal inclination angle of their axes.

[0006] Furthermore, the annular support comprises an upper ring frame and a lower ring frame which are movably connected and can be opened and closed.

[0007] Furthermore, a plurality of telescopic support rods are provided in the inner ring of the annular support and are slidable and fixed along the annular support. The telescopic support rods are used to support and fix the parts to be welded which are inserted into the annular support.

[0008] Furthermore, the telescopic support rod includes a supporting end, an end hydraulic telescopic rod, a support rod body, and a support rod fixing shell; the telescopic support rod as a whole is sleeved on the annular bracket through the support rod body and the support rod fixing shell, and the supporting end is arranged at the front end of the end hydraulic telescopic rod.

[0009] Furthermore, the telescopic support rod is moved on the annular support by a support roller driven by a motor, and is fixed on the annular support by a friction fixing foot controlled by a hydraulic rod.

[0010] Furthermore, the connecting rod comprises two groups of symmetrically arranged connecting rod assemblies and fixing bolts and nuts. One end of the connecting rod assembly is evenly provided with a plurality of through holes, and the other end is provided with a circular hole.

[0011] Furthermore, the upper end of the hydraulic support column is connected to the annular bracket, and the lower end is movably arranged on the track through the hydraulic column foot 33.

[0012] Furthermore, the hydraulic column foot includes a circular buckle, a column foot shell, a column foot rolling ball and a column foot roller. The circular buckle is fixed on the column foot shell, and the column foot rolling ball is connected to the column foot shell through the column foot roller, and is driven to roll and be fixed by a motor.

[0013] Furthermore, 360° scale lines are arranged on the inner side surfaces of the upper ring frame and the lower ring frame along the circumferential direction, and scale lines are also arranged on the piston rod of the hydraulic support column.

[0014] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0015] (1) The components to be welded are stably clamped, the rotation angle is accurately controlled, and the welding accuracy is high;

[0016] (2) The device has a simple structure, and each component is easy to install and disassemble, convenient for transportation and maintenance, and saves storage space;

[0017] (3) The working process is simple and easy to operate. When there are many components to be welded at the same node, there is no need to repeatedly hoist the components. The welding work can be completed continuously, saving processing time and reducing the labor intensity of construction workers.

[0018] (4) The device has a wide range of applications. When clamping components of different sizes, cross-sectional shapes or with a certain curvature, there is no need to replace the entire welding device. The requirements for clamping different components can be met by adjusting or replacing the size of the connecting rod and the telescopic support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 is a schematic diagram of the ring bracket structure;

[0021] Figure 3 1. is a schematic diagram of the support shaft structure;

[0022] Figure 4 is a schematic diagram of the telescopic support rod structure;

[0023] Figure 5 It is a schematic diagram of the connecting rod structure;

[0024] Figure 6 It is a schematic diagram of the structure of the hydraulic support column;

[0025] Figure 7 1. It is a schematic diagram of the structure of the inner rail bracket connector;

[0026] Figure 8 1. It is a schematic diagram of the structure of the outer rail bracket connector;

[0027] Fig. 9 It is a schematic diagram of the track structure;

[0028] Fig.10 This is a schematic diagram of the working process of the utility model Figure 1 ;

[0029] Fig.11 This is a schematic diagram of the working process of the utility model Figure 2 .

[0030] Figure numerals: 1-annular bracket, 11-upper ring bracket, 12-lower ring bracket, 13-bracket shaft, 131-upper ring bracket sleeve, 132-lower ring bracket ear, 133-shaft latch and nut, 14-bracket locking bolt and nut, 15-telescopic support rod, 151-support end, 152-end hydraulic telescopic rod, 153-support rod body, 154-support rod fixing shell, 155-support roller, 156-friction fixing foot, 157-hydraulic rod, 2-connecting rod, 21-connecting rod assembly, 22-connecting rod fixing bolt and nut, 3-hydraulic support column, 31-piston rod, 32-hydraulic cylinder, 33-hydraulic column foot, 331-circular buckle, 332-column foot shell, 333-column foot rolling ball, 334-column foot roller, 4-inner rail bracket connector, 41-inner rail connecting shaft, 42-inner rail shaft gasket, 43-inner rail connecting nut, 5-outer rail bracket connector, 51-outer rail connecting shaft, 52-outer rail shaft gasket, 53-outer rail connecting nut, 6-track, 61-column foot buckle slide rail, 62-rolling ball track, 63-track fixing foot and hole position. DETAILED DESCRIPTION

[0031] The present invention will be further explained below in conjunction with specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0032] like Figure 1-9As shown, the steel pipe intersecting node welding device of the utility model comprises an annular bracket 1, a connecting rod 2, a hydraulic support column 3, an inner rail bracket connector 4, an outer rail bracket connector 5 and a track 6. Preferably, two annular brackets 1 are provided in a single set of devices, and the two annular brackets 1 are connected by two connecting rods 2 with adjustable lengths. Each annular bracket 1 is provided on the track 6 through two hydraulic support columns 3, and the hydraulic support columns 3 move horizontally along the track 6 to adjust the positions of the two annular brackets 1. The extension and retraction of the hydraulic support columns 3 drives the annular brackets 1 to move up and down, so as to adjust the height of the two annular brackets 1 and the horizontal inclination angle of their axes, so that the two annular brackets 1 are located at the same horizontal height (the axes are horizontal), or at different heights (the axes are at a certain inclination angle with the horizontal line).

[0033] like Figure 1-4 As shown, the annular bracket 1 comprises an upper annular bracket 11, a lower annular bracket 12, a bracket rotating shaft 13, a bracket locking bolt and nut 14, and a telescopic support rod 15. The upper annular bracket 11 and the lower annular bracket 12 are two annular brackets hingedly connected up and down, and are movably connected through the bracket rotating shaft 13 and the locking bolt and nut 14. The bracket rotating shaft 13 and the locking bolt and nut 14 are arranged on opposite sides of the annular bracket 1. A plurality of telescopic support rods 15 that can slide along the annular bracket 1 are arranged in the inner circle of the annular bracket 1. The telescopic support rods 15 are used to support and fix the welded parts that are inserted into the annular bracket 1.

[0034] The support shaft 13 includes an upper ring frame sleeve 131, a lower ring frame ear 132, a shaft latch and a nut 133. The upper ring frame sleeve 131 and the lower ring frame ear 132 are welded to the upper ring frame 11 and the lower ring frame 12 respectively. The upper ring frame 11 can rotate around the shaft latch and the nut 133 to complete the opening and closing of the annular support 1. When the annular support 1 is closed, the entire support is locked by the support locking bolt and the nut 14; when the upper ring frame 11 rotates around the axis to 120°, the limit plate on the upper ring frame sleeve 131 can resist the lower ring frame 12 to achieve the fixation of the device.

[0035] The telescopic support rod 15 includes a support end 151, an end hydraulic telescopic rod 152, a support rod body 153, a support rod fixing shell 154, a support roller 155, a friction fixing foot 156 and a hydraulic rod 157. In the present utility model, the outer side of the support rod body 153 is defined as the side facing the inner wall of the annular bracket 1, and the inner side of the support rod body 153 is defined as the side facing the axis of the annular bracket 1. The end hydraulic telescopic rod 152 is fixed to the inner side of the support rod body 153, and the support end 151 is set at the front end of the piston rod of the end hydraulic telescopic rod 152 through a threaded connection, and the end hydraulic telescopic rod 152 and the support rod body 153 are fixed by welding. The support end 151 is provided with an arc or conical opening for fixing the parts to be welded.

[0036] The support rod body 153 is provided with a hole whose shape and size match the cross section of the annular bracket 1 , and is also provided with a support rod fixing shell 154 , which is fixed to the support rod body 153 by bolts, so as to facilitate the installation and removal of the entire telescopic support rod 15 .

[0037] The telescopic support rod 15 is moved on the annular support 1 by a support roller 155 driven by a motor, and is fixed on the annular support 1 by a friction fixing foot 156 controlled by a hydraulic rod 157. A support roller 155 and a driving motor (not shown in the figure) are arranged in the support rod body 153. The output shaft of the driving motor is connected to the support roller 155 to drive the support roller 155 to rotate. The support roller 155 contacts the inner wall of the annular support 1. When it is necessary to move, the driving motor is started to drive the support roller 155 to roll along the inner wall of the annular support 1. A hydraulic rod 157 and a friction fixing foot 156 are also arranged in the support rod body 153. The hydraulic cylinder of the hydraulic rod 157 is fixed in the support rod body 153. The front end of the piston rod of the hydraulic rod 157 is connected to the friction fixing foot 156. The end of the friction fixing foot 156 is a rubber gasket or other material with a large friction coefficient. The friction fixing foot 156 can be telescoped along its axial direction, that is, the radial direction of the annular support, and can provide tangential static friction when it contacts the inner wall. When the telescopic support rod 15 needs to slide along the inner wall of the annular bracket 1, the hydraulic rod 157 retracts, the friction fixing foot 156 does not contact the inner wall of the annular bracket 1, and the driving machine drives the supporting roller 155 to rotate, thereby driving the telescopic support rod 15 to slide as a whole; when the telescopic support rod 15 needs to be fixed, the driving motor stops, and the hydraulic rod 157 extends to make the friction fixing foot 156 closely contact with the inner wall of the annular bracket 1, and the friction force between the telescopic support rod 15 is increased by the friction fixing foot 156, thereby achieving the fixation of the telescopic support rod 15.

[0038] As shown in the figure, angle scale lines are provided on the inner side surfaces of the upper ring frame 11 and the lower ring frame 12 to facilitate observation of the circumferential rotation angle of the telescopic support rod 15 during operation.

[0039] A plurality of telescopic support rods 15 are fixed on the annular bracket 1 through a support rod body 153 and a support rod fixing shell 154 whose shape matches the cross section of the annular bracket 1. During installation, the support rod body 153 is first pushed in from one side, and then the support rod fixing shell 154 is fixed to the support rod body 153 by bolts from the other side.

[0040] like Figure 5As shown, at least two connecting rods 2 are provided, or a plurality of connecting rods 2 are evenly spaced on the circumference of the annular bracket 1. In this embodiment, two symmetrical groups of connecting rods 2 are provided. The connecting rod 2 includes a connecting rod fixing bolt and a nut 22 and two oppositely arranged connecting rod assemblies 21. A plurality of through holes are provided at one end of the connecting rod assembly 21, and the two connecting rod assemblies 21 are fixed together by the connecting rod fixing bolt and the nut 22. The overall length of the connecting rod 2 can be changed according to the relative movement of the connecting rod assembly 21 and the movement of the connecting rod fixing bolt and the nut 22.

[0041] like Figure 6 As shown, the hydraulic support column 3 includes a piston rod 31, a hydraulic cylinder 32 and a hydraulic column foot 33. The hydraulic cylinder 32 is fixed on the hydraulic column foot 33. The hydraulic column foot 33 is arranged on the track 6 and can slide along the track 6. The piston rod 31 and the hydraulic cylinder 32 are two parts of the same hydraulic rod. A scale line is provided on the piston rod 31, and the unit is centimeter, so that the extension and contraction length of the piston rod 31 can be observed.

[0042] The hydraulic column foot 33 includes a circular buckle 331, a column foot housing 332, a column foot rolling ball 333 and a column foot roller 334. The hydraulic cylinder 32 is rotatably connected to the hydraulic column foot 33 through an internal thread. The circular buckle 331 is welded to the column foot housing 332 to prevent the device from tipping over laterally; the column foot rolling ball 333 is connected to the column foot housing 332 through the column foot roller 334, and the column foot roller 334 is controlled by a built-in motor (not shown in the figure) to roll and lock, thereby realizing the movement and stop of the hydraulic support column 3 on the track 6.

[0043] like Figure 7 As shown, the inner rail support connector 4 includes an inner rail connecting shaft 41, an inner rail connecting shaft gasket 42, and an inner rail connecting nut 43. The inner rail connecting shaft 41 is welded to the lower ring frame 12, and the inner rail connecting shaft gasket 42, the hydraulic support column 3, the connecting rod 2, and the inner rail connecting nut 43 are sequentially sleeved on the inner rail connecting shaft 41 in the order shown. Except for the inner rail connecting nut 43, all components sleeved on the inner rail connecting shaft 41 can rotate freely around the axial direction.

[0044] like Figure 8As shown, the outer rail support connector 5 is similar to the inner rail support connector 4, and the outer rail support connector 5 includes an outer rail connection shaft 51, an outer rail shaft gasket 52 and an outer rail connection nut 53. The outer rail connection shaft 51 is welded to the lower ring frame 12, and the outer rail shaft gasket 52, the connecting rod 2, the hydraulic support column 3, and the outer rail connection nut 53 are sequentially sleeved on the outer rail connection shaft 51 in the order shown. The difference between the inner rail support connector 4 and the outer rail support connector 5 is that the hydraulic support 3 in the inner rail support connector 4 is on the inner side of the connecting rod 2, while the hydraulic support 3 in the outer rail support connector 5 is on the outer side of the connecting rod 2. By reasonably setting the length of the shaft gaskets at various locations, the installation position of the connecting rod 2 is on the same axis, and at the same time, the connecting rod 2 is prevented from colliding with the hydraulic support columns 3 on both sides during operation.

[0045] like Fig. 9 As shown, the track 6 is assembled from a number of identical single track components. The single track component includes a column foot buckle slide rail 61 welded on its upper surface and having a shape matching the column foot 33 of the hydraulic column, a rolling ball track 62 having a shape matching the column foot rolling ball 333, and corresponding track fixing feet and holes 63 arranged on the three sides of the track 6 as shown in the figure. During installation, only a part of the track component needs to be spliced ​​along the length direction, and the other part needs to be rotated 180° in the plane and then spliced ​​on the aforementioned track.

[0046] Working process as Fig.10 As shown in the figure: ① adjust the hydraulic support columns of the single-group device to the initial state of the same height, open the annular bracket 1, and place the component to be welded on the annular bracket 1 by means of a crane or other equipment; ② close the annular bracket 1 and lock it with bolts and nuts, extend each telescopic support rod 15, and clamp the component; ③ drive the support roller 155 on the telescopic support rod 15 by a motor to rotate the component along the axis of the annular bracket 1 to the welding angle (the angle between the axes of each component in the intersecting node and the angle of the component around its own axis are uniquely determined, and the angle of the component around its own axis is referred to as the welding angle, and the angle between the axes of each component is referred to as the welding angle), and then put down the friction fixing foot 156, so that The telescopic support rod 15 is fixed on the annular bracket, and the component no longer rotates. The angle of rotation of the component along the axis can be determined by the scale line on the annular bracket 1; ④ Adjust the length of each hydraulic support column 3, rotate the component in the vertical plane, so that the angle between the axes of the two components to be welded is the welding angle, wherein the angle between the component and the horizontal plane is calculated according to the ratio of the height difference between the two hydraulic support columns 3 (which can be obtained by the scale on the piston rod) and the length of the connecting rod connecting the two hydraulic support columns 3 (that is, the distance between the centers of the two end rings). For example, when the scales of the two hydraulic columns are 10cm and 240cm respectively, and the length of the connecting rod is 460cm, the angle between the component and the horizontal plane is ⑤ The motor drives the column foot rolling ball 333, and after the component moves to the welding position, it stops on the track 6. If there is a height difference between the welding positions of the components, the length of the hydraulic support column 3 of one side device is adjusted as a whole to make the welding positions of the components flush and perform welding; ⑥ After welding, open the annular bracket 1 of one side device, retract the telescopic support rod 15, and release the clamping of the component by the device on this side; ⑦ Adjust the hydraulic support columns 3 of the devices on both sides to restore the devices to their initial state.

[0047] If there are three or more components in the node to be welded, repeat the above operation to complete the welding process of all components of the node continuously. shown.

[0048] If node welding is required on both sides of the same component, it can be done after the node welding on one side is completed (such as ), adjust the length of the hydraulic support column 3 and the position of the column foot rolling ball 333 (such as ) to rotate the component 180° in the vertical plane (in the specific operation, raise the outer rail hydraulic support column and lower the inner rail hydraulic support column 3 to achieve flipping), so that the node position to be welded on the other side is located in the middle of the two support devices, and then complete the welding with reference to the above operation. The center right support device along with the track was removed and reinstalled on the left side.

[0049] like Fig.11 As shown, ①~③ show the working condition of the component rotating upward, ④~⑦ show the working condition of clamping components with different cross-sectional sizes or shapes, and ⑧~⑨ show the working condition of clamping components with a certain curvature.

[0050] The utility model realizes the purpose of stable support during the support process of the component to be welded, maintaining the balance of the component, and accurately adjusting the angle according to the welding requirements. At the same time, the device has a wide range of uses, a simple structure, is easy to install and maintain, and the operation process is simple and safe, which greatly improves the construction efficiency, construction quality and construction safety.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steel pipe intersecting node welding device, characterized in that: The invention comprises an annular support (1), a connecting rod (2), a hydraulic support column (3) and a track (6); the two annular supports (1) are connected via a connecting rod (2) of adjustable length; each annular support (1) is arranged on the track (6) via a hydraulic support column (3); the hydraulic support column (3) moves horizontally along the track (6) to adjust the positions of the two annular supports (1); the extension and retraction of the hydraulic support column (3) drives the annular supports (1) to move up and down, so as to adjust the height of the two annular supports (1) and the horizontal inclination angle of their axes.

2. The steel pipe intersecting node welding device according to claim 1 is characterized in that: The annular support (1) comprises an upper ring frame (11) and a lower ring frame (12) which are movably connected and can be opened and closed.

3. The steel pipe intersecting node welding device according to claim 2 is characterized in that: A plurality of telescopic support rods (15) are provided on the inner ring of the annular support (1) and are slidable and fixed along the annular support (1). The telescopic support rods (15) are used to support and fix the parts to be welded that are inserted into the annular support (1).

4. The steel pipe intersecting node welding device according to claim 3 is characterized in that: The telescopic support rod (15) comprises a support end (151), an end hydraulic telescopic rod (152), a support rod body (153), and a support rod fixing shell (154); the telescopic support rod (15) is sleeved on the annular bracket (1) as a whole through the support rod body (153) and the support rod fixing shell (154), and the support end (151) is arranged at the front end of the end hydraulic telescopic rod (152).

5. The steel pipe intersecting node welding device according to claim 4 is characterized in that: The telescopic support rod (15) is moved on the annular support (1) by means of a support roller (155) driven by a motor, and is fixed on the annular support (1) by means of a friction fixing foot (156) controlled by a hydraulic rod (157).

6. The steel pipe intersecting node welding device according to claim 1, characterized in that: The connecting rod (2) comprises two groups of symmetrically arranged connecting rod assemblies (21) and fixing bolts and nuts (22); one end of the connecting rod assembly (21) is evenly provided with a plurality of through holes, and the other end is provided with a circular hole.

7. The steel pipe intersecting node welding device according to claim 1, characterized in that: The upper end of the hydraulic support column (3) is connected to the annular support (1), and the lower end is movably arranged on the track (6) via a hydraulic column foot (33).

8. The steel pipe intersecting node welding device according to claim 7, characterized in that: The hydraulic column foot (33) comprises a circular buckle (331), a column foot shell (332), a column foot rolling ball (333) and a column foot roller (334); the circular buckle (331) is fixed on the column foot shell (332); the column foot rolling ball (333) is connected to the column foot shell (332) via the column foot roller (334) and is driven to roll and be fixed by a motor.

9. The steel pipe intersecting node welding device according to claim 2, characterized in that: The inner side surfaces of the upper ring frame (11) and the lower ring frame (12) are provided with 360° scale lines along the circumferential direction, and the piston rod of the hydraulic support column (3) is also provided with scale lines.

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