Metal pipe welding butt joint device

Abstract

The utility model discloses a metal pipe welding butt joint device, and relates to the technical field of welding tools. Comprising a fixed base; the middle support is arranged on the fixed base; the number of the sliding base assemblies is two, and the two sliding base assemblies are symmetrically arranged on the two sides of the middle support correspondingly. The middle support comprises a jacking air cylinder arranged on the fixed base, and a semicircular pipe is horizontally arranged on a piston rod of the jacking air cylinder; the sliding base assembly comprises a sliding base arranged on the fixed base in a sliding mode, a rotating motor is arranged on the sliding base, a supporting shaft is coaxially arranged on an output shaft of the rotating motor, the end, away from the rotating motor, of the supporting shaft is movably arranged in the arc-shaped opening of the semicircular pipe, and an inserting disc is coaxially arranged on the supporting shaft. And a plurality of insertion pipe through holes are formed in the insertion disc in the circumferential direction. The butt joint device has the advantages that the butt joint convenience and precision of the metal pipes before welding are improved, and the like.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically to a metal pipe welding and butt welding device. Background Technology

[0002] When welding metal pipes, in order to ensure that the weld joints are flush, it is usually necessary to align the weld joints of two metal pipes first before welding. Currently, workers typically place the two metal pipes on a welding table before welding. However, when the metal pipes are long, it is inconvenient to adjust their position during the joining process after manual handling, which is time-consuming and labor-intensive, reducing work efficiency and potentially leading to low welding precision. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a metal pipe welding and butt welding device, which has advantages such as improving the convenience and accuracy of butt welding of metal pipes before welding.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a metal pipe welding and butt welding device, comprising:

[0005] Fixed base;

[0006] The intermediate support is mounted on the fixed base.

[0007] The sliding base assembly has two components, which are symmetrically arranged on both sides of the central support.

[0008] The intermediate support includes a lifting cylinder mounted on a fixed base, and a semi-circular tube is horizontally mounted on the piston rod of the lifting cylinder.

[0009] The sliding base assembly includes a sliding base slidably mounted on a fixed base. A rotating motor is mounted on the sliding base. A support shaft is coaxially mounted on the output shaft of the rotating motor. The end of the support shaft away from the rotating motor is movably mounted in the arc-shaped opening of a semi-circular tube. An insertion plate is coaxially mounted on the support shaft. Multiple insertion tube through holes are arranged circumferentially on the insertion plate. The center line of the insertion tube through holes is parallel to the center line of the insertion plate, and the distance from the center line of the insertion tube through holes to the center line of the insertion plate is the same.

[0010] Preferably, each of the two opposing side walls of the intermediate support is provided with a push cylinder corresponding to the sliding base. The piston rod of the push cylinder is connected to the sliding base, which facilitates the position adjustment of the sliding base by pushing the cylinder. This allows it to be used for inserting metal tubes of different lengths into the insertion holes on the insertion plate before welding.

[0011] Preferably, the sliding base is provided with a plate support, and the top of the plate support is provided with an arc-shaped groove that matches the curvature of the plate. The outer peripheral wall of the plate is rotatably disposed in the arc-shaped groove. The piston rod of the pushing cylinder passes through the plate support and connects with the sliding base, which facilitates the support of the plate and helps to keep the position of the metal tube inserted in the tube through hole stable.

[0012] Preferably, the length of the semicircular tube is greater than the sum of the lengths of the two support shafts, so that when the two insert plates are close to each other, the two support shafts will not interfere with each other inside the semicircular tube.

[0013] Preferably, at least two insertion holes are provided, and the diameter of the two insertion holes increases sequentially along the circumference of the insertion plate, so as to facilitate the installation and fixation of metal tubes of different diameters in the corresponding insertion holes before welding, according to welding requirements.

[0014] Preferably, a positioning disc is coaxially fixed on the output shaft of the rotating motor. The diameter of the positioning disc is equal to or greater than the diameter of the insertion disc. When the metal tube is installed in the insertion through hole, the two ends of the two metal tubes in the length direction can respectively abut against the two positioning discs, thereby preventing the metal tubes from moving during welding.

[0015] The beneficial effects of this utility model are as follows: 1. By inserting the metal tube into the insertion plate before welding, it is beneficial to improve the accuracy and precision of the welding position and avoid the disadvantages of manual hand operation which is time-consuming and laborious; at the same time, the position can be adjusted by pushing the cylinder to drive the sliding base assembly, which can be applied to welding metal tubes of various lengths, thus improving applicability.

[0016] 2. The insertion plate has multiple through holes of different diameters along its circumference, making it suitable for welding metal tubes of various diameters. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a metal pipe welding and butt welding device provided in an embodiment of the present utility model.

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0020] Figure 3A schematic diagram of the intermediate support structure of a metal pipe welding and butt joint device provided in an embodiment of this utility model.

[0021] Figure 4 This is a schematic diagram showing the position of the insertion through hole in a metal pipe welding and butt welding device provided in this embodiment of the present invention.

[0022] Figure 5 A schematic diagram of the arc-shaped groove position of a metal pipe welding and butt welding device provided for an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Fixed base; 2. Intermediate support; 21. Lifting cylinder; 22. Semicircular tube; 23. Pushing cylinder; 3. Sliding base assembly; 31. Sliding base; 32. Rotating motor; 321. Support shaft; 33. Insertion plate; 34. Insertion tube through hole; 35. Insertion plate support; 351. Arc groove; 4. Positioning plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] like Figures 1 to 5 As shown, this utility model provides a metal pipe welding and butt welding device, including a fixed base 1; an intermediate support 2 is disposed on the fixed base 1; two sliding base assemblies 3 are provided, and the two sliding base assemblies 3 are symmetrically disposed on both sides of the intermediate support 2; the intermediate support 2 includes a lifting cylinder 21 disposed on the fixed base 1, and a semi-circular tube 22 is horizontally disposed on the piston rod of the lifting cylinder 21; the sliding base assembly 3 includes a sliding base 31 slidably disposed on the fixed base 1, and a rotary motor 32 is disposed on the sliding base 31, with the output shaft of the rotary motor 32 connected to the fixed base 1. The shaft is provided with a support shaft 321. The end of the support shaft 321 away from the rotating motor 32 is movably disposed in the arc-shaped opening of the semi-circular tube 22. A insertion plate 33 is coaxially disposed on the support shaft 321. Multiple insertion tube through holes 34 are disposed on the insertion plate 33 along the circumference. The center line of the insertion tube through holes 34 is parallel to the center line of the insertion plate 33, and the distance between the center line of the insertion tube through holes 34 and the center line of the insertion plate 33 is the same. On the two opposing side walls of the intermediate support 2, there is a push cylinder 23 corresponding to the sliding base 31. The piston rod of the push cylinder 23 is connected to the sliding base 31.

[0027] When welding of metal tubes is required, first activate the push cylinder 23 to move the sliding base assembly 3 away from the semi-circular tube 22; then insert one metal tube into each of the two insertion plates 33 (that is, insert the metal tube horizontally into the insertion through hole 34 on the insertion plate 33), at which point the center lines of the two metal tubes are on the same straight line; then activate the push cylinder 23 to move the sliding base assembly 3 closer to the semi-circular tube 22 until the ends of the two metal tubes near the semi-circular tube 22 come into contact; then activate the lifting cylinder 21. The semicircular tube 22 is raised, so that the ends of the two metal tubes near the semicircular tube 22 are both located within the arc-shaped opening of the semicircular tube 22 (thus improving the positional stability of the metal tubes before welding). Welding can then be performed at the contact point of the two metal tubes (multi-point spot welding can be performed first. After the spot welding is completed, the lifting cylinder 21 is started to lower the semicircular tube 22, and then the contact point of the two metal tubes is fully welded. During the full welding process, the rotating motor 32 can be started at the same time to drive the insertion plate 33 to rotate, thus facilitating the welding operation).

[0028] The position can also be adjusted by pushing the cylinder 23 to drive the sliding base 31 (that is, adjusting the distance between the two sliding bases 31 according to the length of the metal tube), so that it can be used to insert metal tubes of different lengths into the insertion through hole 34 on the insertion plate 33 before welding.

[0029] The sliding base 31 is provided with a plate support 35. The top of the plate support 35 is provided with an arc groove 351 that matches the curvature of the plate 33. The outer peripheral wall of the plate 33 is rotatably disposed in the arc groove 351. The piston rod of the cylinder 23 passes through the plate support 35 and connects with the sliding base 31. This facilitates the support of the plate 33, thereby helping to maintain the stability of the metal tube inserted in the tube through hole 34.

[0030] Example 2

[0031] Based on Example 1, such as Figures 1 to 3 As shown, the length of the semicircular tube 22 is greater than the sum of the lengths of the two support shafts 321; this facilitates the movement of the two sliding bases 31 towards the semicircular tube 22 when the starting cylinder 23 drives the two support shafts 321 to slide at both ends of the semicircular tube 22. As the two support shafts 321 approach each other, they do not interfere with each other within the semicircular tube 22, thus facilitating the sliding adjustment of the position of the two sliding bases 31.

[0032] Example 3

[0033] Based on Example 1, such as Figure 1 and Figure 4As shown, there are at least two insertion tube through holes 34, and the diameters of the two insertion tube through holes 34 increase sequentially along the circumferential direction of the insertion plate 33; a positioning plate 4 is also coaxially fixedly sleeved on the output shaft of the rotating motor 32, and the diameter of the positioning plate 4 is equal to or greater than the diameter of the insertion plate 33.

[0034] Depending on the welding requirements, when welding metal tubes of different diameters, the rotating motor 32 can be started before welding to drive the insertion plate 33 to rotate, thereby rotating the insertion tube through holes 34 of different diameters to the appropriate positions, facilitating the insertion of metal tubes of different diameters. At the same time, the positions of the insertion tube through holes 34 of the same diameter required on the two insertion plates 33 are aligned, and the centers of the insertion tube through holes 34 on the two insertion plates 33 are on the same straight line, making it easy to install the two metal tubes into the insertion tube through holes 34 on the two insertion plates 33 respectively. After the metal tubes are installed into the insertion tube through holes 34 on the insertion plates 33, one end of the metal tube can be made to abut against the positioning plate 4, thereby preventing the metal tubes from moving during welding. Then, the pushing cylinder 23 is started to drive the two sliding bases 31 to move towards the semi-circular tube 22, so that the ends of the two metal tubes away from the insertion plate 33 come closer to each other, thereby completing the welding operation of the metal tubes.

[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A metal pipe welding and butt welding device, characterized in that, include: Fixed base (1); Intermediate support (2) is provided on the fixed base (1); There are two sliding base assemblies (3), and the two sliding base assemblies (3) are symmetrically arranged on both sides of the middle support (2); Among them, the intermediate support (2) includes a lifting cylinder (21) set on the fixed base (1), and a semi-circular tube (22) is horizontally set on the piston rod of the lifting cylinder (21); The sliding base assembly (3) includes a sliding base (31) slidably disposed on a fixed base (1). A rotating motor (32) is disposed on the sliding base (31). A support shaft (321) is coaxially disposed on the output shaft of the rotating motor (32). One end of the support shaft (321) away from the rotating motor (32) is movably disposed in the arc-shaped opening of the semi-circular tube (22). A insertion plate (33) is coaxially disposed on the support shaft (321). Multiple insertion tube through holes (34) are disposed on the insertion plate (33) along the circumferential direction. The center line of the insertion tube through hole (34) is parallel to the center line of the insertion plate (33), and the distance from the center line of the insertion tube through hole (34) to the center line of the insertion plate (33) is the same.

2. The metal pipe welding and butt welding device as described in claim 1, characterized in that, The middle support (2) has a push cylinder (23) on each of its two opposing side walls, which is corresponding to the sliding base (31). The piston rod of the push cylinder (23) is connected to the sliding base (31).

3. The metal pipe welding and butt welding device as described in claim 1, characterized in that, A plate holder (35) is provided on the sliding base (31). The top of the plate holder (35) is provided with an arc groove (351) that matches the curvature of the plate (33). The outer peripheral wall of the plate (33) is rotatably disposed in the arc groove (351). The piston rod of the pushing cylinder (23) passes through the plate holder (35) and connects with the sliding base (31).

4. The metal pipe welding and butt welding device as described in claim 1, characterized in that, The length of the semicircular tube (22) is greater than the sum of the lengths of the two support shafts (321).

5. The metal pipe welding and butt welding device as described in claim 1, characterized in that, There are at least two insertion cannula through holes (34), and the diameter of the two insertion cannula through holes (34) increases sequentially along the circumferential direction of the insertion plate (33).

6. The metal pipe welding and butt welding device as described in claim 5, characterized in that, A positioning disc (4) is also coaxially fixed on the output shaft of the rotating motor (32), and the diameter of the positioning disc (4) is equal to or greater than the diameter of the insertion disc (33).

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