Positioning clamp for steel pipe welding

Abstract

The utility model relates to the technical field of positioning clamps, in particular to a positioning clamp for steel pipe welding, which comprises a positioning plate, and positioning grooves are arranged at two ends of the positioning plate. Each adjusting assembly comprises an adjusting plate, one end of each adjusting plate is fixedly connected with a limiting pin shaft, each limiting pin shaft is movably inserted into the corresponding positioning groove, the two adjusting assemblies are symmetrically arranged, and the adjusting assemblies are used for adjusting the steel pipe clamping angle of the clamping assemblies; and the number of the clamping assemblies is two, each clamping assembly is connected with the end, away from the limiting pin shaft, of the adjusting plate, and the clamping assemblies are used for clamping and fixing the steel pipe. Through the arrangement of the positioning plate and the adjusting assembly, the two clamping assemblies can be vertically distributed and horizontally distributed in a collinear mode, so that collinear butt welding is achieved while steel pipes are vertically positioned and welded, one machine has multiple purposes, and the using flexibility and adaptability of the device are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning jigs, in particular to a positioning jig for steel pipe welding. Background Technique

[0002] Steel pipes are steel materials with a hollow cross-section, and their length is much greater than the diameter or circumference. They are mainly divided into square pipes and round pipes according to the cross-section. A right-angle clamp is a tool for fixing and connecting square pipes, with a 90-degree right-angle design, and is usually used in work such as welding to assist in the positioning and fixing of square pipes.

[0003] When the existing right-angle clamp is used for positioning square pipes, it can only achieve 90-degree vertical welding positioning and cannot achieve the horizontal butt joint positioning of two steel pipes, so its use has limitations, and its operators need to be equipped with two different jigs to achieve right-angle and horizontal welding processing. Content of the Utility Model

[0004] The purpose of the utility model is to provide a positioning jig for steel pipe welding to solve the problem that only 90-degree vertical welding positioning can be achieved and the horizontal butt joint positioning of two steel pipes cannot be achieved in the above background technique, resulting in limitations in its use.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A positioning jig for steel pipe welding, including:

[0006] A positioning plate, with positioning grooves opened at both ends of the positioning plate;

[0007] An adjusting component, the adjusting component includes an adjusting plate, one end of the adjusting plate is fixedly connected with a limiting pin shaft, and the limiting pin shaft is movably inserted into the positioning groove. There are two groups of adjusting components symmetrically arranged, and the adjusting component is used for adjusting the clamping angle of the component steel pipe;

[0008] A clamping component, there are also two groups of clamping components, and each group of clamping components is respectively connected to the end of the adjusting plate away from the limiting pin shaft, and the clamping component is used for clamping and fixing the steel pipe.

[0009] Preferably, the positioning groove is of an elliptical structure, and a limiting groove is opened inside the positioning groove. A limiting ring is arranged on the outer wall of the limiting pin shaft, and the limiting ring abuts inside the limiting groove.

[0010] Preferably, a first threaded hole is opened on the adjusting plate, and a first threaded rod is threadedly connected inside the first threaded hole, and the first threaded rod abuts on the upper surface of the positioning plate.

[0011] Preferably, a rotating groove is opened on the lower surface of the adjusting plate, and a 90-degree vertical surface and a 45-degree inclined surface are arranged on the surface of the rotating groove.

[0012] Preferably, the clamping assembly includes a clamping seat fixedly connected to the outer wall of the adjusting plate. A sliding rod is slidably inserted into one end of the clamping seat, and a clamping plate is connected to the other end of the sliding rod.

[0013] Preferably, the clamping seat is in a U-shaped structure, and anti-slip rubber pads are provided on the sides of the clamping seat and the clamping plate close to each other. The upper surface of the concave part of the clamping seat is at the same horizontal plane as the upper surface of the positioning plate.

[0014] Preferably, a second threaded hole is provided above the end of the clamping seat away from the adjusting plate, and a second threaded rod is threadedly connected to the inside of the second threaded hole. The second threaded rod abuts against the upper surface of the sliding rod.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the setting of the positioning plate and the adjusting assembly, the two clamping assemblies can be respectively vertically distributed and horizontally collinear distributed, so that the steel pipe can meet the vertical positioning welding and realize the collinear butt welding at the same time. The device has multiple functions, greatly improving the flexibility and adaptability of the device. At the same time, the sliding limit rotational connection between the adjusting assembly and the positioning plate makes the suspended length of the welding end lower when in collinear distribution, further improving the stability of its welding support, thus greatly improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the first state of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the second state of the present utility model;

[0018] Figure 3 is an exploded structural diagram of the clamping assembly of the present utility model;

[0019] Figure 4 is a partial sectional structural diagram of the present utility model;

[0020] Figure 5 is a schematic structural diagram of the distribution of the limit pins of the present utility model.

[0021] In the figure: 1, positioning plate; 11, positioning groove; 2, adjusting assembly; 21, adjusting plate; 22, limit pin; 23, first threaded rod; 3, clamping assembly; 31, clamping seat; 32, sliding rod; 33, second threaded rod; 34, clamping plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5 , an embodiment provided by the present utility model: a positioning fixture for steel pipe welding, comprising:

[0024] A positioning plate 1, and positioning grooves 11 are provided at both ends of the positioning plate 1;

[0025] An adjusting assembly 2, the adjusting assembly 2 includes an adjusting plate 21, one end of the adjusting plate 21 is fixedly connected with a limiting pin shaft 22, and the limiting pin shaft 22 is movably inserted into the positioning groove 11. Two groups of adjusting assemblies 2 are symmetrically arranged, and the adjusting assembly 2 is used for adjusting the clamping angle of the steel pipe of the clamping assembly 3. Through the angle adjustment of different positions of the two groups of adjusting assemblies 2, the device realizes the dual adaptability adjustment of collinear butt welding positioning and vertical welding positioning respectively, greatly improving the adaptability and flexibility of its use;

[0026] The clamping assembly 3 is also provided with two groups, and each group of clamping assemblies 3 is respectively connected to the end of the adjusting plate 21 far from the limiting pin shaft 22, and the clamping assembly 3 is used for clamping and fixing the steel pipe. By clamping and positioning a steel pipe by the two-side clamping assemblies 3 respectively, the ends thereof are butted and positioned, facilitating the welding operation of the operator.

[0027] Further, the positioning groove 11 is of an elliptical structure, and a limiting groove is provided inside the positioning groove 11. A limiting ring is provided on the outer wall of the limiting pin shaft 22, and the limiting ring abuts inside the limiting groove. Through the limiting sliding of the limiting ring, while realizing the position movement, it can also realize the rotational support, and at the same time play a good limiting role.

[0028] Further, a first threaded hole is provided on the adjusting plate 21, and a first threaded rod 23 is threadedly connected inside the first threaded hole. The first threaded rod 23 abuts on the upper surface of the positioning plate 1. Through the setting of the first threaded rod 23, after the angle of the adjusting plate 21 is adjusted, the stability of the angle adjustment of the adjusting plate 21 is ensured by the abutment of the first threaded rod 23.

[0029] Further, a rotating groove is provided on the lower surface of the adjusting plate 21, and a ninety-degree vertical surface and a forty-five-degree inclined surface are provided on the surface of the rotating groove. Through the contact limiting of different surfaces, the adjustment processing of the collinear positioning and vertical positioning of the clamping assembly 3 is realized, playing a good limiting role.

[0030] Furthermore, the clamping assembly 3 includes a clamping seat 31 which is fixedly connected to the outer wall of the adjusting plate 21. One end of the clamping seat 31 is slidably inserted with a sliding rod 32, and the other end of the sliding rod 32 is connected to a clamping plate 34. By sliding the sliding rod 32, the clamping plate 34 is driven to displace, so as to cooperate with the clamping seat 31 to complete the clamping and positioning of the steel pipe.

[0031] Furthermore, the clamping seat 31 is of a U-shaped structure, and anti-slip rubber pads are provided on the sides of the clamping seat 31 and the clamping plate 34 close to each other. While improving the clamping stability, it avoids the sliding of the clamped object. The upper surface of the concave part of the clamping seat 31 is on the same horizontal plane as the upper surface of the positioning plate 1, and the vertical angle of the vertical butt joint is assisted and supported through the upper surface of the positioning plate 1, further ensuring the stability of the steel pipe. And the sliding rod 32 is adjusted in a pull-out manner, and the position adjustment is more convenient, making the positioning of the steel pipe faster and more convenient.

[0032] Furthermore, a second threaded hole is opened above the end of the clamping seat 31 away from the adjusting plate 21, and a second threaded rod 33 is threadedly connected inside the second threaded hole. The second threaded rod 33 abuts against the upper surface of the sliding rod 32. Through the threaded adjustment of the second threaded rod 33, the second threaded rod 33 completes the abutting and limiting of the sliding rod 32, thereby ensuring the stability of the sliding rod 32 after being pulled out. And the adjustment distance of the second threaded rod 33 is small, making the operation more convenient and labor-saving when the clamping assembly 3 clamps steel pipes with different diameters.

[0033] Working principle: The first threaded rod 23 and the clamping plate 34 used in this application are both products that can be directly purchased on the market, and their principles and connection methods are all prior arts well-known to those skilled in the art, so they will not be elaborated here. When this utility model is in use, first, according to different welding methods, the distribution positions of the clamping assembly 3 are adjusted. When vertical welding is performed, the adjusting plate 21 is in contact with the 45-degree inclined surface, and vice versa with the 90-degree vertical surface, so as to respectively realize the adjustment of vertical welding positioning and collinear welding positioning. Then, through the clamping assembly 3, the clamping and positioning of the steel pipe are completed. After the ends of the steel pipes are butt-jointed and positioned, the welding treatment of the steel pipes can be completed.

[0034] For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of this utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in this utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A positioning fixture for steel pipe welding, characterized in that, Including: A positioning plate (1), with positioning grooves (11) opened at both ends of the positioning plate (1); An adjusting assembly (2), the adjusting assembly (2) includes an adjusting plate (21), one end of the adjusting plate (21) is fixedly connected with a limit pin shaft (22), and the limit pin shaft (22) is movably inserted into the positioning groove (11). Two groups of the adjusting assemblies (2) are symmetrically arranged, and the adjusting assembly (2) is used for adjusting the clamping angle of the steel pipe of the clamping assembly (3); A clamping assembly (3), two groups of the clamping assemblies (3) are also provided, and each group of the clamping assemblies (3) is respectively connected to the end of the adjusting plate (21) far from the limit pin shaft (22), and the clamping assembly (3) is used for clamping and fixing the steel pipe.

2. The positioning fixture for steel pipe welding according to claim 1, characterized in that: The positioning groove (11) is of an elliptical structure, and a limit groove is opened inside the positioning groove (11). A limit ring is arranged on the outer wall of the limit pin shaft (22), and the limit ring abuts inside the limit groove.

3. A positioning fixture for steel pipe welding according to claim 1, characterized in that: A first threaded hole is opened on the adjusting plate (21), and a first threaded rod (23) is threadedly connected inside the first threaded hole. The first threaded rod (23) abuts against the upper surface of the positioning plate (1).

4. A positioning fixture for steel pipe welding according to claim 1, characterized in that: A rotating groove is opened on the lower surface of the adjusting plate (21), and a ninety-degree vertical plane and a forty-five-degree inclined plane are arranged on the surface of the rotating groove.

5. A positioning fixture for steel pipe welding according to claim 1, characterized in that: The clamping assembly (3) includes a clamping seat (31), the clamping seat (31) is fixedly connected to the outer wall of the adjusting plate (21), a sliding rod (32) is slidably inserted into one end of the clamping seat (31), and the other end of the sliding rod (32) is connected to a clamping plate (34).

6. The positioning fixture for steel pipe welding according to claim 5, characterized in that: The clamping seat (31) is of a U-shaped structure, and anti-slip rubber pads are arranged on the sides of the clamping seat (31) and the clamping plate (34) close to each other. The upper surface of the concave part of the clamping seat (31) is on the same horizontal plane as the upper surface of the positioning plate (1).

7. A positioning fixture for steel pipe welding according to claim 5, characterized in that: A second threaded hole is opened above the end of the clamping seat (31) far from the adjusting plate (21), and a second threaded rod (33) is threadedly connected inside the second threaded hole. The second threaded rod (33) abuts against the upper surface of the sliding rod (32).

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