CN217776104U - A circular welding adjustment device for round pipe butt welding - Google Patents

Abstract

The utility model relates to the technical field of steel structure supporting systems, in particular to a circumferential welding adjusting device for circular tube butt welding, which comprises a supporting base, wherein the supporting base is arranged along the axial extension of a circular tube to be welded in the length direction, two length direction side walls at the top of the supporting base vertically extend upwards and are provided with supporting plates at equal height, and two fixed pulleys for circumferential rotation of the circular tube to be welded are arranged on the supporting plates and corresponding positions; the support base is internally provided with a plurality of movable support mechanisms used for providing temporary vertical support for the round pipe to be welded, and the output end of each movable support mechanism passes through a through hole reserved in the top surface of the support base and then is exposed between the support plates. The utility model discloses simple structure can effectively treat the pipe in welding or the welding process and carry out position control, improves hoop welded work efficiency and quality.

Description

Circumferential welding adjustment device for round pipe butt welding

technical field

The utility model relates to the technical field of steel structure support systems, in particular to a ring-direction welding adjustment device for round pipe butt welding.

Background technique

Bridge reconstruction often uses a large number of steel structures to form the base support and upper support of the bridge. Round pipes are one of the important components of steel structures. Construction personnel often need to weld multiple round pipes on site to meet the length required by the design. This type of welding is basically performed by aligning the end faces of the round pipes and performing circumferential welding. For this type of circular weld operation, the welder needs to adjust his body posture and perform the welding operation according to the position change of the welding part, which is very inconvenient to operate. At the same time, when welding hidden positions such as the bottom of the round pipe, lifting equipment such as a truck crane is required to lift the two round pipes and expose the corresponding parts before welding. However, at this time, the overall circumferential weld is not completely welded. , the round tube may be bent at the weld during the turning process. At the same time, the welding seam at the bottom of the round pipe will have defects that cannot be judged by naked eyes due to the wrong welding angle, which will affect the overall rigidity.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a circular welding adjustment device for round pipe butt welding. The utility model has a simple structure and can effectively adjust the position of the round pipe to be welded or in the welding process, improving Productivity and quality of circumferential welding.

In order to achieve the above object, the utility model provides the following technical solutions:

A circumferential welding adjustment device for round pipe butt welding, comprising a support base extending along the axial direction of the round pipe to be welded in the length direction, the two length direction side walls of the top of the support base extend vertically upwards and are provided with support plates at the same height. The supporting plate and the corresponding position are provided with a fixed pulley for the circumferential rotation of the round pipe to be welded;

The inside of the support base is also provided with several mobile support mechanisms for providing temporary vertical support to the round pipe to be welded. between the support plates,

An operation hole is opened on the side wall of the support base corresponding to the mobile support mechanism, and the operation hole communicates with the outside world and the inner space of the support base.

Preferably, the output end of the moving support mechanism includes a moving clamping plate, and the top end of the moving clamping plate exposed to the outside world is fixedly connected with an idler bracket for rotatably supporting the idler roller set.

Preferably, the set of idler rollers includes two idler rollers whose bottoms are oppositely inclined and whose tops are facing away from each other, and the idler rollers are rotatably connected to the idler support through roller shafts.

Preferably, a vertically extending threaded hole is provided at the bottom end of the moving pallet, the threaded hole is screwed with the top of the threaded column, and the bottom of the threaded column is rotatably arranged on the bottom plate of the supporting base.

Preferably, the outer wall of the threaded column is also radially extended with several hand rods arranged at equal intervals in the circumferential direction.

Preferably, the device further includes a positioning mechanism arranged at both ends of the support base in the length direction, the positioning mechanism includes a sliding block horizontally slidably connected between the two supporting plates, and the sliding block is hinged with two parallel bars facing the side of the round pipe to be welded. The other end of the hinged rod is hinged with a connecting plate, and the bottom of the connecting plate is vertically provided with a fixed horizontal plate, and the threaded shaft arranged on the fixed horizontal plate at the bottom is screwed with the preset screw hole on the movable plate. The two hinged rods arranged in parallel can keep the connecting plate in a vertical state as much as possible, ensuring that the fixed horizontal plate cooperates with the connecting plate to effectively clamp the pipe wall of the round pipe to be welded.

Preferably, a dovetail chute is opened on the connecting plate, and the dovetail chute is slidingly matched with the dovetail slider provided at the end of the moving plate. The cooperation of the dovetail chute and the dovetail slider can ensure that the connecting plate moves vertically and smoothly relative to the fixed horizontal plate.

The utility model work process is as follows:

First, the threaded column 306 is rotated by the hand lever 307, so that the moving clamp 301 rises and the height of the idler bracket 302 is higher than the supporting plate 101. The idler group 304 on the idler bracket 302 supports the round pipe. Since the two idler rollers 303 of the idler group 304 have a V-shaped structure, the two round pipes on the idler group 304 can use gravity to achieve axis alignment. Then push the two round tubes in opposite directions, so that the two round tubes move in opposite directions on the idler roller set 304 to complete the port docking.

At this moment, the operator rotates the threaded column 306 reversely through the hand lever 307, so that the moving clamp 301 descends and makes the idler bracket 302 lower than the support plate 101, uses the upper fixed pulley 2 of the support plate 101 to support the round pipe, and then moves Slide the block 401, and turn the hinge rod 402 so that the pipe wall at the non-welded port of the round pipe is placed between the fixed horizontal plate 403 and the movable plate 407, then turn the threaded shaft 408 so that the movable plate 407 moves toward the fixed horizontal plate 403 and moves the pipe The wall is clamped, so that the cooperation with the sliding block 401 can effectively prevent the round pipe from turning around under the action of external force, and fully guarantee the personal safety of the welding personnel.

The welder can then weld the port gaps exposed in the weld space. After the current welding seam operation is completed, the staff will first remove the clamping of the circular pipe by the movable plate 407 and the fixed horizontal plate 403, and then make the two circular pipes rotate synchronously in the circumferential direction through the guidance of the fixed pulley 2 and expose the unwelded gap to the In the welding space, and then fix the round tube again, the remaining gap can be welded. After the round pipe after welding is removed from the clamping, it can be hoisted away from the support base 1 by a truck crane, and replaced with a new round pipe for welding.

Compared with the prior art, the utility model has the following advantages: the utility model has a simple structure, can effectively adjust the position of the round pipe to be welded or in the welding process, and improve the working efficiency and quality of the circumferential welding.

Description of drawings

Fig. 1 is the structural representation of circular pipe butt welding circular welding adjustment device in the specific embodiment;

Fig. 2 is a schematic diagram of the internal structure of the support base 1 in a specific embodiment;

Fig. 3 is a schematic structural view of a mobile support mechanism in a specific embodiment;

Fig. 4 is a schematic structural diagram of a positioning mechanism in a specific embodiment.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1-4, a circular pipe butt welding circular welding adjustment device includes a support base 1 extending along the axial direction of the round pipe to be welded in the length direction, and the two lengthwise side walls on the top of the support base 1 are vertically upward The support plates 101 are extended and at the same height, and the two support plates 101 and the corresponding positions are provided with fixed pulleys 2 for the circumferential rotation of the round pipe to be welded;

The inside of the support base 1 is also provided with several mobile support mechanisms 3 for providing temporary vertical support to the round pipe to be welded. The mobile support mechanism 3 includes a mobile pallet 301 whose top passes through the support base 1 The through hole reserved on the top surface is exposed to the external space between the two supporting plates 101, and the top of the movable clamping plate 301 is fixedly connected with an idler bracket 302 for rotating and supporting the idler roller group 304, and the idler roller group 304 It includes two idler rollers 303 whose bottoms are oppositely inclined and whose tops are facing away from each other. The idler rollers 303 are rotatably connected to the idler roller bracket 302 through roller shafts.

The bottom end of the moving pallet 301 is provided with a vertically extending threaded hole 305, the threaded hole 305 is screwed with the top of the threaded column 306, and the bottom of the threaded column 306 is rotatably arranged on the bottom plate of the support base 1, and the threaded hole 305 is screwed on the top of the threaded column 306. The outer wall of the column 306 is also radially extended with several handle rods 307 arranged at equal intervals in the circumferential direction.

An operation hole 102 is opened on the side wall of the support base 1 corresponding to the mobile support mechanism 3 , and the operation hole 102 communicates with the outside world and the inner space of the support base 1 .

The device also includes a positioning mechanism 4 arranged at both ends of the support base 1 in the lengthwise direction. The positioning mechanism 4 includes a sliding block 401 horizontally slidably connected between the two support plates 101, and the sliding block 401 is hinged towards the side of the round pipe to be welded. There are two hinged rods 402 arranged in parallel, and the other end of the hinged rods 402 is hinged with a connecting plate 403. The bottom of the connecting plate 403 is vertically provided with a fixed horizontal plate 404, and the bottom is rotatably arranged on the threaded shaft 408 and the moving plate 407 on the fixed horizontal plate 404. The preset screw holes are screwed together; the connecting plate 403 is provided with a dovetail chute 405 , and the dovetail chute 405 is slidingly matched with the dovetail slider 406 provided at the end of the moving plate 407 .

The utility model work process is as follows:

First, the threaded column 306 is rotated by the hand lever 307, so that the moving clamp 301 rises and the height of the idler bracket 302 is higher than the supporting plate 101. The idler group 304 on the idler bracket 302 supports the round pipe. Since the two idler rollers 303 of the idler group 304 have a V-shaped structure, the two round pipes on the idler group 304 can use gravity to achieve axis alignment. Then push the two round tubes in opposite directions, so that the two round tubes move in opposite directions on the idler roller set 304 to complete the port docking.

At this moment, the operator rotates the threaded column 306 reversely through the hand lever 307, so that the moving clamp 301 descends and makes the idler bracket 302 lower than the support plate 101, and uses the upper fixed pulley 2 of the support plate 101 to support the round pipe, and then moves Slide the block 401, and turn the hinge rod 402 so that the pipe wall at the non-welding port of the round pipe is placed between the fixed horizontal plate 403 and the movable plate 407, then turn the threaded shaft 408 so that the movable plate 407 moves toward the fixed horizontal plate 403 and moves the pipe The wall is clamped, so that the cooperation with the sliding block 401 can effectively prevent the round pipe from turning around under the action of external force, and fully guarantee the personal safety of the welding personnel.

The welder can then weld the port gaps exposed in the weld space. After the current welding seam operation is completed, the staff will first remove the clamping of the circular pipe by the movable plate 407 and the fixed horizontal plate 403, and then make the two circular pipes rotate synchronously in the circumferential direction through the guidance of the fixed pulley 2 and expose the unwelded gap to the In the welding space, and then fix the round tube again, the remaining gap can be welded. After the round pipe after welding is removed from the clamping, it can be hoisted away from the support base 1 by a truck crane, and replaced with a new round pipe for welding.

Claims (7)

1. A circumferential welding adjustment device for round pipe butt welding, characterized in that it includes a support base extending in the longitudinal direction along the axial direction of the round pipe to be welded, and the two length direction side walls at the top of the support base extend vertically upwards and are of equal height A support plate is provided, and fixed pulleys are provided at the corresponding positions on the two support plates for the circumferential rotation of the circular pipe to be welded; The inside of the support base is also provided with several mobile support mechanisms for providing temporary vertical support to the round pipe to be welded. between the support plates, An operation hole is opened on the side wall of the support base corresponding to the mobile support mechanism, and the operation hole communicates with the outside world and the inner space of the support base. 2. The circumferential welding adjustment device for round pipe butt welding according to claim 1, wherein the output end of the mobile support mechanism includes a movable pallet, and the top end of the movable pallet exposed to the outside world is useful for fixed connection. It is used to rotate the idler bracket that supports the idler set. 3. The circumferential welding adjustment device for round pipe butt welding according to claim 2, characterized in that, the set of supporting rollers includes two supporting rollers with the bottoms facing oppositely and the tops facing away from each other, and the supporting rollers pass through the rollers The shaft is rotatably connected with the supporting roller. 4. The circular pipe butt welding circular welding adjusting device as claimed in claim 2, wherein the bottom end of the moving pallet is provided with a vertically extending threaded hole, and the threaded hole is connected to the top of the threaded column. Screw matching, the bottom of the threaded column is rotatably set on the bottom plate of the supporting base. 5 . The circular pipe butt welding circular welding adjusting device according to claim 4 , characterized in that, the outer wall of the threaded column is further provided with a plurality of hand rods arranged at equal intervals in the circumferential direction extending radially. 5 . 6. The circumferential welding adjustment device for round pipe butt welding according to claim 1, characterized in that, the device also includes positioning mechanisms arranged at both ends of the support base in the length direction, and the positioning mechanism includes a horizontal sliding connection between two ends. The sliding block between the support plates is hinged with two parallel hinged rods facing the side of the round pipe to be welded. The other end of the hinged rod is hinged with a connecting plate. The bottom of the connecting plate is vertically provided with a fixed horizontal plate, and the bottom is rotated. The threaded shaft on the fixed horizontal plate is threadedly matched with the preset screw hole on the movable plate. 7. A circumferential welding adjustment device for round pipe butt welding according to claim 6, characterized in that: a dovetail chute is provided on the connecting plate, and the dovetail chute and the dovetail provided at the end of the moving plate Slider slide fit.

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