Pipe-to-pipe welding auxiliary device

Abstract

The utility model provides a pipe-to-pipe welding auxiliary device which structurally comprises a base, a plurality of pipe frames are arranged on the base, the pipe frames are connected with the base through sliding parts and rotating parts, the sliding parts can change the relative positions of the pipe frames, and the rotating parts can change the relative angles of the pipe frames. The pipe frame is used for clamping and supporting the to-be-welded pipeline, position adjustment and angle adjustment of the to-be-welded pipeline are achieved through the arrangement of the sliding part and the rotating part, the accuracy and efficiency of alignment work before welding are improved, and the working quality and working efficiency of pipeline welding are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a pipe-to-pipe welding auxiliary device. Background Art

[0002] Pipeline welding is the key to ensure the tightness and strength of pipelines, the key to ensure pipeline quality, and an important condition for ensuring pipeline safety production. Welding auxiliary devices are essential process equipment in large-scale welding production processes. They can ensure the relative position of welding, improve labor productivity, reduce labor production intensity, and improve quality accuracy.

[0003] In the daily welding construction process of ordinary metal pipes or seamless steel pipes, various welding methods such as butt welding and circumferential welding of seamless steel pipes require that the interface surfaces of the two seamless steel pipes to be welded are flush and the center lines of the steel pipes are aligned. The welding methods of seamless steel pipes include: pipe-to-pipe welding, pipe-to-flange welding, pipe end-to-pipe side angle welding and pipe end-to-pipe angle welding.

[0004] In general, there are many different welding methods for different application fields and specific requirements of seamless steel pipes. Choosing a suitable welding method can improve the welding quality and ensure the safety and use effect of seamless steel pipes. However, the existing metal pipe welding auxiliary devices cannot meet the requirements of diversified pipe angles in construction, cannot guarantee the docking accuracy of pipes, and cannot guarantee the welding quality and reliability. Utility Model Content

[0005] The utility model aims to provide a pipe-to-pipe welding auxiliary device to solve the above-mentioned problems.

[0006] The technical solution of the utility model includes: a pipe-to-pipe welding auxiliary device, which includes a base, on which a plurality of pipe racks are arranged, and the pipe racks are connected to the base through sliding members and rotating members, the sliding members can change the relative positions of the pipe racks, and the rotating members can change the relative angles of the pipe racks.

[0007] Preferably, a slide rail is provided on the base, a drive rod is provided in the slide rail, and the sliding member is located in the slide rail and is threadedly connected to the drive rod.

[0008] Preferably, the cross section of the slide rail is T-shaped, and the sliding member is adapted to the shape of the slide rail.

[0009] Preferably, the rotating member includes a fixed shaft and a rotating sleeve, one end of the fixed shaft is connected to the sliding member, and the other end extends into the rotating sleeve, the tube is mounted on the other end of the rotating sleeve, and the rotating sleeve can rotate around the fixed shaft or be fixed by a locking member.

[0010] Preferably, a horizontal screw hole one and a horizontal screw hole two are respectively provided on the fixed shaft and the rotating sleeve, the positions of the horizontal screw hole one and the horizontal screw hole two correspond to each other and are distributed along the circumference of the fixed shaft, and the locking piece is installed in the horizontal screw hole one and the horizontal screw hole two.

[0011] Preferably, there are 2, 4, 6 or 8 horizontal screw holes 2 evenly distributed along the circumference of the fixed axis.

[0012] Preferably, a stabilizing seat is provided between the fixed shaft and the sliding member, and the stabilizing seat is located above the base and abuts against it.

[0013] Preferably, the pipe rack includes a pipe sleeve, a base support and a locking hoop, the pipe sleeve is horizontally arranged, the base support is arranged at the inner bottom of the pipe sleeve, and the locking hoop is arranged on the side wall of the pipe sleeve and can move radially along the pipe sleeve.

[0014] Preferably, the locking clamp includes a screw and an arc plate, and the arc plate is located inside the pipe sleeve; one end of the screw is fixedly connected to the arc plate, and the other end passes through the pipe sleeve and is fixed by limit nuts located on both sides of the pipe sleeve.

[0015] The beneficial effects of the utility model are: the pipe rack is used to clamp and support the pipe to be welded, and the position and angle adjustment of the pipe to be welded are achieved through the configuration of sliding parts and rotating parts, thereby improving the accuracy and efficiency of the positioning work before welding, and significantly improving the work quality and work efficiency of pipe welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of an embodiment of the utility model;

[0017] Figure 2 These are two usage state diagrams of the embodiments of the utility model;

[0018] Figure 3 It is a top view of an embodiment of the utility model;

[0019] Figure 4 It is a structural diagram of a fixed shaft and a rotating sleeve in an embodiment of the utility model.

[0020] In the figure:

[0021] 100, base; 110, slide rail;

[0022] 200, pipe rack; 210, pipe sleeve; 220, bottom bracket; 230, locking clamp; 231, screw; 232, arc plate; 233, limit nut;

[0023] 300, sliding member;

[0024] 400, rotating part; 410, fixed shaft; 411, horizontal screw hole 1; 420, rotating sleeve; 421, horizontal screw hole 2; 430, locking part; 440, stabilizing seat;

[0025] 500, driving rod;

[0026] 600. Turntable. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] Reference Figure 1-3The present embodiment provides a pipe-to-pipe welding auxiliary device, which includes a base 100, a pipe rack 200, a sliding member 300 and a rotating member 400. At least two pipe racks 200 are arranged on the base 100, and each pipe rack 200 is connected to the base 100 through a sliding member 300 and a rotating member 400. The sliding member 300 can change the relative position of the pipe rack 200, so as to align the positions of the pipes to be welded that are inserted into different pipe racks 200 before the pipes are welded. The rotating member 400 can change the relative angles of the pipe racks 200, so as to accurately adjust the angles of the pipes to be welded that are inserted into different pipe racks 200 according to the welding requirements before the pipes are welded.

[0032] The base 100 has a flat surface to ensure that all components can be stably installed and operated thereon. The top surface of the base 100 is provided with two parallel slide rails 110 extending along its length direction. A driving rod 500 is provided in the slide rail 110. The sliding member 300 is located in the slide rail 110 and is threadedly connected to the driving rod 500. When the driving rod 500 rotates, the sliding member 300 is restricted by the side wall of the slide rail 110 and can only move along the length direction of the driving rod 500, but cannot rotate around the driving rod 500, so as to adjust the relative position of the pipe rack 200.

[0033] The driving rod 500 can be driven by a motor or a turntable 600 placed outside the base 100. The specific driving method is a prior art and can be configured according to actual usage requirements. No specific restrictions are made here.

[0034] In order to improve the smoothness and stability of the movement of the sliding member 300, in this embodiment, the sliding rail 110 is configured to have a T-shaped cross section, and the sliding member 300 is adapted to its shape.

[0035] Reference Figure 4 The rotating member 400 includes a fixed shaft 410 and a rotating sleeve 420. One end of the fixed shaft 410 is connected to the sliding member 300, and the other end extends into the rotating sleeve 420. The pipe rack 200 is arranged at the other end of the rotating sleeve 420. The rotating sleeve 420 can rotate around the fixed shaft 410 or be fixed by the locking member 430. The position and angle of the pipe rack 200 and the rotating sleeve 420 are fixed. When the locking member 430 is loosened and the rotating sleeve 420 is rotated, the pipe rack 200 also rotates accordingly, and the pipes passing through the pipe rack 200 also rotate accordingly, and the axial direction changes. After the angles of the adjacent pipe racks 200 are accurately adjusted, the locking member 430 can be locked.

[0036] In some feasible implementation schemes, a horizontal screw hole 1 411 and a horizontal screw hole 2 421 are respectively provided on the fixed shaft 410 and the rotating sleeve 420, and the positions of the horizontal screw hole 1 411 and the horizontal screw hole 2 421 correspond to each other and are distributed along the circumference of the fixed shaft 410, and the locking member 430 is installed in the horizontal screw hole 1 411 and the horizontal screw hole 2 421. The locking member 430 can be a high-strength bolt, and when it is separated from the horizontal screw hole 1 411 or completely separated from the rotating sleeve 420, the rotating sleeve 420 can rotate around the fixed shaft 410.

[0037] In practice, the axes of pipe-to-pipe welding are mostly parallel or perpendicular to each other, and occasionally at angles of 30°, 45°, 60°, etc. Therefore, evenly distributing 2, 4, 6 or 8 horizontal screw holes 421 along the circumference of the fixed shaft 410 can meet the needs of most working conditions.

[0038] In addition, in order to improve the supporting stability and sliding smoothness of the pipe rack 200, a stabilizing seat 440 is provided between the fixed shaft 410 and the sliding member 300. The stabilizing seat 440 is located above the base 100 and abuts against it, and the radial dimension of the stabilizing seat 440 is greater than the width of the slide rail 110 and the radial dimension of the fixed shaft 410.

[0039] Reference Figure 1 The pipe rack 200 includes a pipe sleeve 210, a base 220 and a locking clamp 230. The pipe sleeve 210 is horizontally arranged, the base 220 is arranged at the inner bottom of the pipe sleeve 210, and the locking clamp 230 is arranged on the side wall of the pipe sleeve 210 and can move along the radial direction of the pipe sleeve 210. By changing the position of the locking clamp 230, the clamping requirements for pipes of different diameters can be achieved.

[0040] The locking clamp 230 includes a screw rod 231 and an arc plate 232. The arc plate 232 is located inside the pipe sleeve 210. One end of the screw rod 231 is fixedly connected to the arc plate 232, and the other end passes through the pipe sleeve 210 and is fixed by limit nuts 233 located on both sides of the pipe sleeve 210. The advantage of using the limit nuts 233 to fix the screw rod 231 instead of directly threading the screw rod 231 to the pipe sleeve 210 is that the axis of the arc plate 232 can maintain a horizontal state to ensure a close fit with the outer wall of the pipe and a stable limit.

[0041] Compared with the prior art, the beneficial effects of the present invention are as follows: the pipe rack 200 is used to clamp and support the pipe to be welded, and the position and angle adjustment of the pipe to be welded are achieved through the configuration of the sliding member and the rotating member 400, thereby improving the accuracy and efficiency of the positioning work before welding, and significantly improving the work quality and work efficiency of the pipe welding.

[0042] The above are preferred implementations of the present utility model. 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 utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A pipe-to-pipe welding auxiliary device, characterized in that: It comprises a base, on which a plurality of pipe racks are arranged, and the pipe racks are connected to the base via sliding members and rotating members, wherein the sliding members can change the relative positions of the pipe racks, and the rotating members can change the relative angles of the pipe racks.

2. The tube-to-tube welding auxiliary device according to claim 1, characterized in that: A slide rail is arranged on the base, a driving rod is arranged in the slide rail, and the sliding member is located in the slide rail and is threadedly connected with the driving rod.

3. The tube-to-tube welding auxiliary device according to claim 2, characterized in that: The cross section of the slide rail is T-shaped, and the sliding member is adapted to the shape of the slide rail.

4. The tube-to-tube welding auxiliary device according to any one of claims 1 to 3, characterized in that: The rotating member includes a fixed shaft and a rotating sleeve, one end of the fixed shaft is connected to the sliding member, and the other end extends into the rotating sleeve. The tube is mounted on the other end of the rotating sleeve, and the rotating sleeve can rotate around the fixed shaft or be fixed by a locking member.

5. The tube-to-tube welding auxiliary device according to claim 4, characterized in that: The fixed shaft and the rotating sleeve are respectively provided with a horizontal screw hole one and a horizontal screw hole two, the positions of the horizontal screw hole one and the horizontal screw hole two correspond to each other and are distributed along the circumference of the fixed shaft, and the locking member is installed in the horizontal screw hole one and the horizontal screw hole two.

6. The tube-to-tube welding auxiliary device according to claim 5, characterized in that: The number of the second horizontal screw holes evenly distributed along the circumference of the fixed axis is 2, 4, 6 or 8.

7. The tube-to-tube welding auxiliary device according to claim 4, characterized in that: A stabilizing seat is provided between the fixed shaft and the sliding member, and the stabilizing seat is located above the base and abuts against the base.

8. The tube-to-tube welding auxiliary device according to any one of claims 1-3 and 5-7, characterized in that: The pipe rack includes a pipe sleeve, a bottom support and a locking clamp. The pipe sleeve is horizontally arranged, the bottom support is arranged at the inner bottom of the pipe sleeve, and the locking clamp is arranged on the side wall of the pipe sleeve and can move radially along the pipe sleeve.

9. The tube-to-tube welding auxiliary device according to claim 8, characterized in that: The locking clamp includes a screw and an arc plate, wherein the arc plate is located inside the pipe sleeve; one end of the screw is fixedly connected to the arc plate, and the other end passes through the pipe sleeve and is fixed by limit nuts located on both sides of the pipe sleeve.

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