Steel pipe and flange welding positioning structure

Abstract

The utility model provides a steel pipe and flange welding positioning structure, which relates to the technical field of welding processing, and comprises an adjusting screw rod, two ends of the adjusting screw rod are provided with a right-hand thread bushing and a left-hand thread bushing in a sliding manner, the right-hand thread bushing and the left-hand thread bushing are respectively provided with a pair of movable connecting rods in a hinged manner, and the tail ends of the movable connecting rods extend to two sides of the adjusting screw rod. The two movable connecting rods located on the same side of the adjusting lead screw are hinged to the V-shaped base at the same time, the V-shaped base is used for bearing the steel pipe and the inner wall of the welding neck flange with the diameter, the V-shaped base 1 is subjected to horizontal and radian treatment, and therefore the pipe and the welding neck flange with the diameter can be located at the same horizontal position, and the misalignment phenomenon is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding processing technical field, concretely relates to a kind of steel pipe and flange welding positioning structure. BACKGROUND

[0002] In the current with diameter flange welding, most of them are welded by artificial, artificial holds flange to align steel pipe port, after alignment, one hand holds flange, and the other hand spot-welds fixed, artificial alignment is prone to misalignment, and after misalignment, it needs to be hammered again and aligned and spot-welded again, which is harmful to pipe and with diameter flange during the process, and prone to waste product, and re-welding needs a lot of time again. Traditional artificial welding with diameter flange is prone to misalignment between pipe and with diameter flange due to the weight of with diameter flange and human factors, which reduces the efficiency of pipe welding. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a high-pressure large-diameter with diameter flange alignment welding support device, which greatly reduces the misalignment between with diameter alignment welding flange and steel pipe during the process and reduces the artificial holding of flange for fixation, reduces the difficulty of manual operation and improves work efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a steel pipe and flange welding positioning structure is provided, which comprises an adjusting screw rod, a right-handed thread sleeve and a left-handed thread sleeve are slidably arranged at both ends of the adjusting screw rod, a pair of movable connecting rods are hingedly arranged at the right-handed thread sleeve and the left-handed thread sleeve respectively, the movable connecting rods extend to both sides of the adjusting screw rod at the end, and a V-shaped base is hingedly arranged at the two movable connecting rods on the same side of the adjusting screw rod, and the V-shaped base supports the inner wall of the steel pipe and the with diameter alignment welding flange.

[0005] Further, the inner wall of the steel pipe is flush with the inner wall of the with diameter alignment welding flange.

[0006] Further, the V-shaped base is arranged inside the steel pipe and the alignment welding flange.

[0007] Further, the right-handed thread sleeve is hingedly connected with the movable connecting rod through a thread sleeve fixing bolt.

[0008] Further, the left-handed thread sleeve is hingedly connected with the movable connecting rod through a thread sleeve fixing bolt.

[0009] Further, the movable connecting rod is hingedly connected with the fixed plate through a fixing pin.

[0010] Further, the fixed plate is fixedly installed with the V-shaped base at the end.

[0011] Further, the adjusting screw rod is fixedly installed with an adjusting ring at the end.

[0012] Further arrangement, the adjusting ring is provided with an adjusting hook penetrating through the adjusting ring, and a rocker is arranged at the end of the adjusting hook.

[0013] Further arrangement, the V-shaped base is symmetrically arranged on both sides of the adjusting screw along the central axis of the adjusting screw.

[0014] The beneficial effects of the present application are as follows:

[0015] The steel pipe and flange welding positioning structure of the present application can guarantee the concentricity of the steel pipe and the diameter butt welding flange, avoid the misalignment during manual assembly and spot welding, and meet the welding requirements. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application, and the schematic embodiments of the present application and the explanations thereof are used to explain the present application.

[0017] Figure 1 is a front view of the installation of the steel pipe and flange welding positioning structure of the present application.

[0018] Figure 2 is a side view of the V-shaped base of the present application.

[0019] In the figure: 1, V-shaped base; 2, fixed plate; 3, movable connecting rod; 3.1, fixed pin; 4, adjusting screw; 5, right-handed threaded sleeve; 5.1, threaded sleeve fixing bolt; 6, left-handed threaded sleeve; 7, steel pipe; 8, diameter butt welding flange; 9, rocker; 10, adjusting ring.

[0020] The mutual distance or size is exaggerated for showing the positions of various parts, and the schematic diagram is only used for illustration. DETAILED DESCRIPTION

[0021] The present application will be described in detail below in combination with specific embodiments.

[0022] In a typical embodiment of the present application, as shown in Figure 1As shown, a steel pipe and flange welding positioning structure is provided, which comprises an adjusting screw rod 4, a right threaded sleeve 5 and a reverse threaded sleeve 6 slidingly arranged at both ends of the adjusting screw rod 4, a pair of movable connecting rods 3 hingedly arranged at the right threaded sleeve 5 and the reverse threaded sleeve 6 respectively, the movable connecting rods 3 extending to both sides of the adjusting screw rod 4, a V-shaped base 1 hingedly arranged at the two movable connecting rods 3 on the same side of the adjusting screw rod 4, and the V-shaped base 1 bearing the inner wall of a steel pipe 7 and a diameter butt welding flange 8. The steel pipe and flange welding positioning structure is used to support the steel pipe 7 and the diameter butt welding flange 8.

[0023] The inner wall of the steel pipe 7 is flush with the inner wall of the diameter butt welding flange 8, and the V-shaped base 1 is arranged inside the steel pipe 7 and the diameter butt welding flange. The V-shaped base 1 is designed in a V-shaped structure, and a fixed plate 2 is arranged on the V-shaped base 1. The fixed plate 2 is connected with the movable connecting rods 3 through fixing pins 3.1. Due to the V-shaped base 1, the welding bead is staggered during spot welding, thereby avoiding welding adhesion.

[0024] The right threaded sleeve 5 is hingedly connected with the movable connecting rods 3 through threaded sleeve fixing bolts 5.1, the reverse threaded sleeve 6 is hingedly connected with the movable connecting rods 3 through threaded sleeve fixing bolts 5.1, the movable connecting rods 3 are fixed on the right threaded sleeve 5 and the reverse threaded sleeve 6 through threaded sleeve fixing bolts 5.1, and threaded sleeve fixing bolts 5.1 are arranged at both ends of the right threaded sleeve 5 and the reverse threaded sleeve 6.

[0025] The movable connecting rods 3 are hingedly connected with the fixed plate 2 through the fixing pins 3.1. The number of the movable connecting rods 3 is six, which are arranged on both sides of the fixed plate 2 and fixed through the fixing pins 3.1. Meanwhile, the movable connecting rods 3 are symmetrically designed based on the adjusting screw rod 4.

[0026] The V-shaped base 1 is fixedly installed at the end of the fixed plate 2, the adjusting ring 1 is fixedly installed at the end of the adjusting screw rod 4, the adjusting hook can be penetrated and arranged in the adjusting ring 10, and the rocker 9 is arranged at the end of the adjusting hook. Specifically, the rocker 9 penetrates through the adjusting ring 10, the adjusting screw rod 4 is overall rocked, the right threaded sleeve 5 and the reverse threaded sleeve 6 are adjusted through screw opening and closing, the movable connecting rods 3 are driven to be overall supported, and the V-shaped base 1 is supported on the inner wall of the steel pipe.

[0027] The V-shaped base 1 is symmetrically arranged on both sides of the adjusting screw rod 4 along the central axis of the adjusting screw rod 4, so as to ensure that the central axis of the adjusting screw rod 4 is coaxial with the coaxial line of the steel pipe and the diameter butt welding flange after the V-shaped base 1 is supported by the movable connecting rods 3.

[0028] The use process of the hoisting structure is as follows:

[0029] A, the rocker 9 is penetrated into the inside of the adjusting ring 10, and the rocker drives the adjusting screw rod 4 to rock;

[0030] B, the adjusting screw rod 4 adjusts the right threaded sleeve 5 and the reverse threaded sleeve 6 through screwing to open and close, so that the overall positioning mechanism height is lowered;

[0031] C. Install the positioning mechanism inside the steel pipe 7, repeat the steps of A, B, and raise the height of the positioning structure;

[0032] D. Raise the height of the positioning structure until the V-shaped base 1 slightly contacts the inner wall of the steel pipe 7;

[0033] E. Place the inner diameter of the diameter butt flange 8 on the positioning structure V-shaped base 1, and adjust the gap between the steel pipe 7 and the diameter butt flange 8;

[0034] F. Enter the adjusting ring 10 through the rocker 9, and rotate the adjusting screw 4 until the V-shaped base 1 is completely in close contact with the inner diameter of the steel pipe 7 and the diameter butt flange 8;

[0035] G. Artificial spot welding is fixed at the V-shaped opening position of the V-shaped base 1 to complete the overall spot welding action.

[0036] Due to the V-shaped base 1, the welding bead is offset during the spot welding process, thus avoiding welding adhesion. Since the V-shaped base 1 has been treated horizontally and with an arc, the pipe and the diameter flange are at the same horizontal position, thus reducing the misalignment phenomenon. The positioning structure provides support, reducing the need for workers to lift the flange, thus reducing the need for manpower, making the steel pipe welding more convenient and improving efficiency.

Claims

1. A welding positioning structure for steel pipes and flanges, characterized in that, Including adjusting screw rod, adjusting screw rod both ends slide setting positive screw sleeve and reverse screw sleeve, positive screw sleeve and reverse screw sleeve respectively hinged setting a pair of movable connecting rod, movable connecting rod end extends to adjusting screw rod both sides, located adjusting screw rod same side two movable connecting rod simultaneously hinged a V-shaped base, V-shaped base receives steel pipe and with diameter butt flange inner wall; The V-shaped base is processed horizontally and radially, and the central axis of the adjusting screw rod is coaxial with the coaxial lines of the steel pipe and the diameter butt flange, wherein the V-shaped base is designed as a V-shaped structure, and a welding position is reserved, and the welding position is staggered with the welding position during spot welding to avoid welding adhesion; The adjusting ring is fixedly installed at the end of the adjusting screw rod. The adjusting hook can be penetrated and arranged in the adjusting ring, and the rocker is arranged at the end of the adjusting hook.

2. The steel pipe and flange welding positioning structure according to claim 1, characterized by, The inner wall of the steel pipe is flush with the inner wall of the diameter butt flange.

3. The steel pipe and flange welding positioning structure according to claim 1, characterized by, The V-shaped base is arranged inside the steel pipe and the butt flange.

4. The steel pipe and flange welding positioning structure according to claim 1, characterized by The positive screw sleeve is hinged with the movable connecting rod through the screw sleeve fixing bolt.

5. The steel pipe and flange welding positioning structure according to claim 1, characterized by The reverse screw sleeve is hinged with the movable connecting rod through the screw sleeve fixing bolt.

6. The steel pipe and flange welding positioning structure according to claim 1, characterized by The movable connecting rod is hinged with the fixed plate through the fixing pin.

7. The steel pipe and flange welding positioning structure according to claim 1, characterized by The V-shaped base is fixedly installed at the end of the fixed plate.

8. The steel pipe and flange welding positioning structure according to claim 1, characterized by The V-shaped base is symmetrically arranged on both sides of the adjusting screw rod along the central axis of the adjusting screw rod.

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