An internal support type aligning clamp for pipe welding

Abstract

The utility model relates to pipeline processing technical field, propose a kind of inner bracing type mouth-to-mouth clamp for pipeline welding, including advancing assembly, support assembly and inner bracing positioning assembly. Advancing assembly includes bottom support base and the two-way screw of rotation connection in its top, and two-way screw is driven by forward-reverse motor;Support assembly is symmetrically arranged in two-way screw both sides, including slide base, reinforcing plate, jointing rod and support base, and support base top is equipped with V-shaped groove;Inner bracing positioning assembly includes sleeve seat, built-in frame, hydraulic cylinder, sleeve head, side groove, limit sleeve, inner bracing plate, sliding sleeve and slope groove. The utility model supports positioning from pipeline interior by inner bracing type structure, avoids outer wall damage;Synchronous advancing is realized using two-way screw and motor, and the accuracy and efficiency of centering are improved;Combined with V-shaped groove support and inner bracing composite positioning, realize pipeline fast, accurate mouth-to-mouth, applicable to thin-walled and high-precision pipeline welding scene.

Description

Technical Field

[0001] This utility model relates to the field of pipeline processing technology, specifically to an internal support type butt clamp for pipeline welding. Background Technology

[0002] Before welding, pipes need to be precisely aligned. Traditional external clamping alignment devices mostly use external clamping methods, such as the patent with announcement number CN218051157U, which clamps the pipe from the outside with left and right alignment plates to achieve docking.

[0003] Although this type of device has a simple structure, it has the following problems: First, external clamping can easily cause indentations on the outer wall of the pipe, affecting its appearance and material properties, and is especially unsuitable for pipes with high requirements such as stainless steel and thin-walled pipes; second, the alignment process relies on manual adjustment of the left and right sliding plates, making it difficult to ensure that the axes of the two pipes are perfectly aligned, which can easily lead to weld misalignment and reduced quality. Therefore, there is an urgent need for an alignment device that can provide support from inside the pipe and achieve synchronous advancement to improve alignment accuracy and protect the pipe surface. Utility Model Content

[0004] This utility model proposes an internal support type alignment clamp for pipe welding, which solves the problems of existing technology that relies on external clamping, which is prone to damaging the outer wall of the pipe, and the alignment accuracy relies on manual adjustment and lacks an automatic synchronization mechanism.

[0005] The technical solution of this utility model is as follows: an internal support type butt clamp for pipe welding, including a push assembly, the push assembly including a base support and a bidirectional screw rotatably connected to the top of the base support; A support assembly symmetrically arranged at the opposite threads of the bidirectional screw; The support assembly includes a support seat for supporting and placing the pipe body. An internal support positioning component installed on the side of the support seat is used to provide support for the pipe before it is aligned from the inside of the pipe.

[0006] Preferably, the propulsion assembly further includes: A forward and reverse motor is fixedly installed on the side of the base; The output end of the forward and reverse motor is fixedly connected to the bidirectional screw. Preferably, the support component further includes: Two sets of slides are respectively arranged on the outside of the bidirectional screw; Threaded grooves formed on the inner side of each of the aforementioned slides; Each of the aforementioned slide blocks is threadedly connected to the outside of the bidirectional screw via a threaded groove.

[0007] Preferably, the support component further includes: Reinforcing plates are symmetrically fixed to the sides of the support. The reinforcing plate is fixedly connected to the slide at the end away from the support; A mounting rod is fixedly connected at the connection between the reinforcing plate and the support.

[0008] Preferably, the support component further includes: A V-shaped groove is formed on the top of the support.

[0009] Preferably, the internal support positioning component includes: A sleeve fixedly connected to the middle part of the support; A built-in frame is symmetrically and fixedly connected to the inside of the sleeve; A hydraulic cylinder is fixedly installed inside the built-in frame.

[0010] Preferably, the internal support positioning component further includes: A sleeve that is fixedly connected to the telescopic end of the hydraulic cylinder.

[0011] Preferably, the internal support positioning component further includes: A side groove is formed in a ring around the periphery of the built-in frame; A limiting sleeve is fixedly connected to the inside of each of the side grooves.

[0012] Preferably, the internal support positioning component further includes: An inner support plate is provided at each of the aforementioned side grooves; A sliding sleeve symmetrically and fixedly connected to the outside of the inner support plate; The inner support plate is slidably connected to the limiting sleeve via a sliding sleeve.

[0013] Preferably, the internal support positioning component further includes: A groove is formed on the inner side of the inner support plate; The groove corresponds to the position of the sleeve head.

[0014] The beneficial effects of this utility model are as follows: Internal support positioning mechanism: This patent provides internal support and alignment from inside the pipe by setting an internal support positioning component, which effectively avoids damage to the outer wall of the pipe or interference with the welding area that may be caused by traditional external clamping devices. It is especially suitable for welding thin-walled or high-precision pipes.

[0015] Bidirectional synchronous propulsion structure: The bidirectional screw is used in conjunction with forward and reverse motors to achieve synchronous and symmetrical movement of the support components on both sides, ensuring the alignment and stability during the pipeline docking process and improving the docking accuracy.

[0016] V-groove support + internal bracing composite positioning: The V-groove on the top of the support and the internal bracing plate work together to facilitate the initial placement and positioning of the pipe, and can be further fixed by internal bracing, forming a dual positioning effect of "external support and internal bracing". Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the overall device of this utility model; Figure 2 This is a schematic diagram of the support component of this utility model; Figure 3 This is an external schematic diagram of the internal support positioning component of this utility model; Figure 4 This is a schematic diagram of the internal support positioning component of this utility model; In the diagram: 1. Propulsion assembly; 11. Base support; 12. Forward and reverse motors; 121. Bidirectional screw; 13. Slide; 131. Threaded groove; 2. Support assembly; 21. Support seat; 211. V-groove; 22. Connecting rod; 221. Reinforcing plate; 3. Internal support positioning assembly; 31. Sleeve; 32. Internal frame; 33. Hydraulic cylinder; 331. Sleeve head; 34. Side groove; 341. Limiting sleeve; 35. Internal support plate; 351. Slide sleeve; 352. Slope groove. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1 to 4 As shown, the present invention provides an internal support type butt clamp for pipe welding, including a push assembly 1, the push assembly 1 including a base 11 and a bidirectional screw 121 rotatably connected to the top of the base 11; Support components 2 are symmetrically arranged at the opposite threads of the bidirectional screw 121; Support assembly 2 includes a support seat 21 for supporting and placing the pipe body; An internal support positioning component 3 is installed on the side of the support seat 21 to provide support for the pipe joint from the inside of the pipe.

[0021] Propulsion component 1 also includes: A forward and reverse motor 12 is fixedly installed on the side of the base 11; The output end of the forward and reverse motor 12 is fixedly connected to the bidirectional screw 121; Furthermore, in the propulsion assembly 1, the forward and reverse motor 12 is fixed to the side of the base 11, and its output shaft is connected to the bidirectional screw 121 to provide rotational power. The two ends of the bidirectional screw 121 are respectively provided with opposite threaded sections to realize the synchronous opposite or reverse movement of the two sliding blocks 13.

[0022] Support component 2 also includes: Two sets of slide blocks 13 are respectively set on the outside of the bidirectional screw 121; Threaded grooves 131 are formed on the inner side of each slide 13; Each slide 13 is threaded to the outside of the bidirectional screw 121 via a threaded groove 131.

[0023] Support component 2 also includes: A reinforcing plate 221 is symmetrically and fixedly connected to the side of the support 21; The reinforcing plate 221 is fixedly connected to the slide 13 at the end away from the support 21; The mounting rod 22 is fixedly connected to the connection between the reinforcing plate 221 and the support 21; In the support assembly 2, the slide 13 is threadedly engaged with the bidirectional screw 121 via an inner threaded groove 131, enabling movement along the screw axial direction. The reinforcing plate 221 and the connecting rod 22 together enhance the connection rigidity between the support 21 and the slide 13. The V-groove 211 on the top of the support 21 facilitates the initial placement and alignment of the pipe.

[0024] Support component 2 also includes: A V-shaped groove 211 is formed on the top of the support 21.

[0025] The internal support positioning component 3 includes: A sleeve 31 is fixedly connected to the middle part of the support 21; The built-in frame 32 is symmetrically and fixedly connected to the inside of the sleeve 31; Hydraulic cylinder 33 is fixedly installed inside the built-in frame 32.

[0026] The internal support positioning component 3 also includes: The sleeve 331 is fixedly connected to the telescopic end of the hydraulic cylinder 33.

[0027] The internal support positioning component 3 also includes: Side grooves 34 are formed in a ring around the inner frame 32; The limiting sleeve 341 is fixedly connected to the inside of each side groove 34.

[0028] The internal support positioning component 3 also includes: Inner support plates 35 are provided at each side groove 34; A sliding sleeve 351 is symmetrically and fixedly connected to the outer side of the inner support plate 35; The inner support plate 35 is slidably connected to the limiting sleeve 341 via the sliding sleeve 351.

[0029] The internal support positioning component 3 also includes: A trough 352 is formed on the inner side of the inner support plate 35; The position of the slope 352 corresponds to that of the sleeve head 331; In the inner support positioning assembly 3, the sleeve 31 is fixed to the middle of the support seat 21, the inner frame 32 is installed inside the sleeve 31, and the hydraulic cylinder 33 is fixed in the inner frame 32, with its telescopic end connected to the sleeve head 331. Side grooves 34 are arranged in a ring around the inner frame 32, and a limiting sleeve 341 is fixed inside the side grooves 34 to guide the inner support plate 35 to slide radially through the sliding sleeve 351. The inner side of the inner support plate 35 is provided with a ramp 352, which cooperates with the sleeve head 331 to achieve radial expansion under hydraulic pressure.

[0030] First, slide the two sets of pipes to be aligned along the V-grooves 211 on both sides to the outside of the sleeve 31. Then, start the hydraulic cylinder 33. The extension end of the hydraulic cylinder 33 drives the sleeve head 331 to push into the inside of the sleeve 31. At this time, the sleeve head 331 will contact and gradually push against the slope groove 352 on the inside of the inner support plate 35. Under the influence of the push of the sleeve head 331, the inner support plate 35 will gradually push outward until it is pressed against the inside of the pipe. Through the above steps, the positioning of the pipe at the V-grooves 211 can be completed quickly. Then, the forward and reverse motor 12 is started. The forward and reverse motor 12 can drive the bidirectional screw 121 inside the base 11, thereby causing the slide 13 with the threaded connection at the opposite threads on both sides of the bidirectional screw 121 to move synchronously towards each other. At this time, the reinforcing plate 221 and the support 21 fixed on the outside of the slide 13 will drive the positioned pipe to move synchronously towards each other until the two sets of positioned pipes complete the alignment work.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pipe welding internal support type mating clamp, comprising a propulsion assembly (1), characterized in that: The propulsion assembly (1) includes a base (11) and a bidirectional screw (121) rotatably connected to the top of the base (11). Support components (2) are symmetrically arranged at opposite threads of the bidirectional screw (121); The support assembly (2) includes a support seat (21) for supporting and placing the pipe body. An internal support positioning component (3) is installed on the side of the support (21) to provide support for the pipe joint from the inside of the pipe.

2. The pipe welding internal support type butt clamp according to claim 1, characterized in that, The propulsion component (1) further includes: A forward and reverse motor (12) is fixedly installed on the side of the base (11). The output end of the forward and reverse motor (12) is fixedly connected to the bidirectional screw (121).

3. The pipe welding internal support type butt clamp according to claim 1, characterized in that, The supporting component (2) also includes: Two sets of slides (13) are respectively arranged on the outside of the bidirectional screw (121); Threaded grooves (131) are formed on the inner side of each of the slides (13); Each of the slides (13) is threaded to the outside of the bidirectional screw (121) via a threaded groove (131).

4. The pipe welding internal support type butt clamp according to claim 1, characterized in that, The supporting component (2) also includes: A reinforcing plate (221) is symmetrically fixed to the side of the support (21); The reinforcing plate (221) is fixedly connected to the slide (13) at the end away from the support (21); The mounting rod (22) is fixedly connected to the connection between the reinforcing plate (221) and the support (21).

5. The pipe welding internal support type butt clamp according to claim 1, characterized in that, The supporting component (2) also includes: A V-shaped groove (211) is formed on the top of the support (21).

6. The pipe welding internal support type butt clamp according to claim 1, characterized in that, The internal support positioning component (3) includes: A sleeve (31) is fixedly connected to the middle part of the support (21); The built-in frame (32) is symmetrically fixedly connected to the inner side of the sleeve (31); A hydraulic cylinder (33) is fixedly installed inside the built-in frame (32).

7. The pipe welding internal support type butt clamp according to claim 6, characterized in that, The internal support positioning component (3) also includes: A sleeve (331) is fixedly connected to the telescopic end of the hydraulic cylinder (33).

8. The pipe welding internal support type butt clamp according to claim 6, characterized in that, The internal support positioning component (3) also includes: Side grooves (34) are formed in a ring around the inner frame (32); A limiting sleeve (341) is fixedly connected to the inside of each of the side grooves (34).

9. A pipe welding internal support type butt clamp according to claim 8, characterized in that, The internal support positioning component (3) also includes: An inner support plate (35) is provided at each of the side grooves (34); A sliding sleeve (351) is symmetrically fixed to the outside of the inner support plate (35); The inner support plate (35) is slidably connected to the limiting sleeve (341) via a sliding sleeve (351).

10. A pipe welding internal support type butt clamp according to claim 9, characterized in that, The internal support positioning component (3) also includes: A groove (352) is formed on the inner side of the inner support plate (35); The groove (352) corresponds to the position of the sleeve (331).

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