Positioning and clamping structure for pipeline surfacing

Abstract

The utility model relates to the technical field of pipeline machining, and discloses a positioning and clamping structure for pipeline surfacing, which comprises a vertical frame, clamping mechanisms are symmetrically arranged at the upper end and the lower end of one side of the vertical frame, each clamping mechanism comprises a transverse frame perpendicular to the vertical frame, a base is arranged on the transverse frame, and a clamping mechanism is arranged on the base. Two clamping arms which are symmetrically arranged left and right are hinged to the base, each clamping arm is of a U-shaped structure, a plurality of attaching rolling wheels are rotationally installed on each clamping arm and extend in the length direction of the corresponding clamping arm, and an adjusting assembly is arranged between the transverse frame and the corresponding clamping arm. The vertical frame and the two transverse frames in the two clamping mechanisms are arranged in the shape of the right square bracket, so that a pipeline can be taken and placed from a notch in one side to reduce the occupied space, the clamping arms are matched with the adjusting assemblies to achieve an automatic centering effect when the pipeline is clamped, the axis is kept uniform when pipelines with different pipe diameters are clamped, and the clamping efficiency is improved. And subsequent processing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline processing, in particular to a positioning clamping structure for pipeline surfacing. Background Art

[0002] Pipeline cladding is a process that enhances the performance of pipes by adding a layer of molten metal to their surface. This method can improve the pipe's wear resistance, corrosion resistance, or strength, enabling it to perform better in harsh environments. Cladding-applied pipes are widely used in the oil and gas industry, chemical industry, mining and metallurgy, and power generation. Cladding repairs or improves the service life and performance of these pipes, reducing replacement and maintenance costs.

[0003] Application number 202321293183.1 discloses a pipe surfacing support device, which uses two support rings in conjunction with hydraulic rods and rubber guide wheels to clamp and fix the pipe. However, during the process of taking and placing the pipe, the pipe needs to be taken and placed from one end of the support ring of the pipe, which will take up a large space. If the pipe is long, it will cause certain troubles in taking and placing the pipe.

[0004] Therefore, we propose a positioning clamping structure for pipeline surfacing to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art in the above background technology, the purpose of the present invention is to provide a positioning clamping structure for pipeline surfacing to solve the problems raised in the above background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A positioning and clamping structure for pipe cladding, comprising a vertical frame, with clamping mechanisms symmetrically arranged at the upper and lower ends of one side of the vertical frame, the clamping mechanism comprising a horizontal frame arranged perpendicular to the vertical frame, a base provided on the horizontal frame, and two clamping arms hingedly arranged symmetrically on the left and right, the clamping arm having a U-shaped structure and rotatably mounted thereon with a plurality of clamping rollers extending along the length direction of the clamping arm, and an adjustment assembly provided between the horizontal frame and the clamping arm;

[0010] An installation groove is formed in the horizontal frame. The adjusting component includes a rotating rod rotatably installed in the installation groove. Threaded sections are provided on both sides of the rotating rod, and the thread directions on the two threaded sections are opposite. Sliding blocks that slide in the installation groove are threadedly connected to the threaded sections. A connecting rod is provided between the sliding block and the clamping arm, and both ends of the connecting rod are hinged to the sliding block and the clamping arm respectively. A first driving motor for driving the rotating rod to rotate is provided at one end of the horizontal frame.

[0011] Furthermore, the side wall of the pressing roller protrudes from the surface of the clamping arm.

[0012] Furthermore, a plurality of second driving motors are provided on the side wall of one group of the clamping arms. The number of the second driving motors is equal to the number of the pressing rollers on the clamping arms and is respectively connected to the pressing rollers in a one-to-one correspondence.

[0013] Furthermore, a table board is provided on the top of the sliding block. Connecting blocks are provided on the top of the table board and the bottom wall of the clamping arm, and both ends of the connecting rod are hinged to the two connecting blocks respectively.

[0014] Preferably, a rubber sleeve is provided on the outer wall of the pressing roller.

[0015] Preferably, a plurality of support blocks are fixedly arranged at intervals in the installation groove, and the rotating rod is rotatably connected to the plurality of support blocks.

[0016] Preferably, extension plates are symmetrically provided on both sides of the horizontal frame, and an inclined reinforcing plate is fixed between the vertical frame and the extension plates.

[0017] Preferably, a plurality of triangular frames arranged at intervals are provided between the horizontal frame and the extension plates.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] The vertical frame and the two horizontal frames in the two clamping mechanisms are arranged in a "C" shape, so that the pipe can be taken and placed from the notch on one side to reduce the occupied space. The clamping arm is provided with an adjusting component to play an automatic centering role when clamping the pipe, keeping the axis unified when clamping pipes with different diameters for subsequent processing. At the same time, the pressing roller and the second driving motor can rotate the clamped pipe for surfacing welding operation. The setting of multiple pressing rollers can further expand the applicable range of different pipe diameters. Description of the drawings

[0021] Figure 1 is a schematic structural diagram of the positioning and clamping structure for pipe surfacing welding of the present utility model;

[0022] Figure 2Schematic diagram of the structure when clamping a pipe by the positioning and clamping structure for pipe surfacing of the present utility model;

[0023] Figure 3 Schematic diagram of the adjusting component structure of the positioning and clamping structure for pipe surfacing of the present utility model.

[0024] In the figure: vertical frame 1, horizontal frame 2, base 3, clamping arm 4, pressing roller 5, second driving motor 6, adjusting component 7, rotating rod 71, threaded section 72, sliding block 73, table board 74, connecting block 75, connecting rod 76, first driving motor 77, rubber sleeve 8, support block 9, extension plate 10, reinforcing plate 11, tripod 12, pipe a. Specific embodiments

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the directions facing or away from the geometric center of a specific component. 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.

[0026] Please refer to Figure 1-3 As shown in the figure, the present utility model provides a positioning and clamping structure for pipe surfacing, which includes a vertical frame 1. Clamping mechanisms are symmetrically arranged at the upper and lower ends on one side of the vertical frame 1. The clamping mechanism includes a horizontal frame 2 perpendicular to the vertical frame 1. The vertical frame 1 and the two horizontal frames 2 form a "C" - shaped structure. A base 3 is arranged on the horizontal frame 2. Two symmetrically arranged clamping arms 4 are hinged to the base 3. The clamping arms 4 are of U - shaped structure and multiple pressing rollers 5 are rotatably installed thereon. The side wall of the pressing roller 5 protrudes from the surface of the clamping arm 4. The multiple pressing rollers 5 extend along the length direction of the clamping arm 4. A plurality of second driving motors 6 are arranged on the side wall of one group of clamping arms 4. The number of the second driving motors 6 is equal to the number of the pressing rollers 5 on the clamping arm 4 and they are respectively connected to the pressing rollers 5 in one - to - one correspondence. An adjusting component 7 is arranged between the horizontal frame 2 and the clamping arm 4;

[0027] A mounting groove is provided on the cross frame 2, and the adjustment component 7 includes a rotating rod 71 rotatably installed in the mounting groove. Threaded sections 72 are provided on both sides of the rotating rod 71. The threads on the two threaded sections 72 are in opposite directions. The threaded sections 72 are threadedly connected to a sliding block 73 that slides in the mounting groove. A table 74 is provided on the top of the sliding block 73. Connecting blocks 75 are provided on the top of the table 74 and the bottom wall of the clamping arm 4. A connecting rod 76 is provided between the two connecting blocks 75. The two ends of the connecting rod 76 are hinged to the two connecting blocks respectively. A first drive motor 77 for driving the rotating rod 71 to rotate is provided at one end of the cross frame 2.

[0028] When in use, first place the pipe a to be clad-welded onto the cross frame 2 through the notch on the opposite side of the vertical pole 1, and then control the two second drive motors 77 to rotate synchronously in the forward direction through an external controller. When the second drive motor 77 rotates, the sliding blocks 73 move toward each other, and cooperate with the connecting rod 76 to make the two clamping arms 4 shrink synchronously until the corresponding clamping rollers 5 fit the outer wall of the pipe a to clamp the pipe a. Since the four clamping arms 4 rotate synchronously, the axis center remains consistent when clamping pipes of different diameters; the second drive motor 6 is set to drive the pipe a to rotate by controlling the rotation of the second drive motor 6 during the cladding process, so as to facilitate the cladding processing of the pipe a, and the setting of multiple clamping rollers 5 can further improve the applicability of this structure to pipes of different diameters.

[0029] As a preferred technical solution of the present invention: a rubber sleeve 8 is provided on the outer wall of the pressing roller 5 to increase the friction between the pressing roller 5 and the outer wall of the pipe a, thereby improving the stability during clamping.

[0030] As a preferred technical solution of the present invention, a plurality of support blocks 9 are fixed at intervals in the mounting groove, and the rotating rod 71 is rotatably connected to the plurality of support blocks 9 to strengthen support for the rotating rod 71 and prevent it from deformation and breakage.

[0031] As a preferred technical solution of the present invention: extension plates 10 are symmetrically arranged on both sides of the horizontal frame 2, an inclined reinforcement plate 11 is fixed between the vertical frame 1 and the extension plate 10, and a plurality of spaced tripods 12 are arranged between the horizontal frame 2 and the extension plate 10 to enhance the stability between the vertical frame 1 and the horizontal frame 2.

[0032] For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances; for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. A positioning clamping structure for pipe cladding, characterized by: The invention comprises a vertical frame (1), wherein the upper and lower ends of one side of the vertical frame (1) are symmetrically provided with clamping mechanisms, wherein the clamping mechanism comprises a horizontal frame (2) vertically provided with the vertical frame (1), wherein the horizontal frame (2) is provided with a base (3), wherein the base (3) is hingedly connected to two clamping arms (4) symmetrically provided on the left and right, wherein the clamping arms (4) are of a U-shaped structure and a plurality of pressing rollers (5) are rotatably mounted on the clamping arms (4), wherein the plurality of pressing rollers (5) extend along the length direction of the clamping arms (4), and an adjusting component (7) is provided between the horizontal frame (2) and the clamping arms (4); The cross frame (2) is provided with a mounting groove, and the adjustment component (7) includes a rotating rod (71) rotatably mounted in the mounting groove, and threaded sections (72) are provided on both sides of the rotating rod (71), and the threads on the two threaded sections (72) are in opposite directions. The threaded sections (72) are threadedly connected to a sliding block (73) that slides in the mounting groove, and a connecting rod (76) is provided between the sliding block (73) and the clamping arm (4), and the two ends of the connecting rod (76) are respectively hinged to the sliding block (73) and the clamping arm (4), and a first driving motor (77) for driving the rotating rod (71) to rotate is provided at one end of the cross frame (2).

2. A positioning and clamping structure for pipe cladding according to claim 1, characterized in that: The side wall of the pressing roller (5) protrudes from the surface of the clamping arm (4).

3. The positioning and clamping structure for pipe cladding according to claim 2, characterized in that: A plurality of second drive motors (6) are provided on the side walls of one group of the clamping arms (4), the number of the second drive motors (6) being equal to the number of the pressing rollers (5) on the clamping arms (4) and being connected to the pressing rollers (5) in a one-to-one correspondence.

4. The positioning and clamping structure for pipe cladding according to claim 1, characterized in that: A platform (74) is provided on the top of the sliding block (73), and a connecting block (75) is provided on the top of the platform (74) and the bottom wall of the clamping arm (4). The two ends of the connecting rod (76) are respectively hinged with two connecting blocks.

5. The positioning and clamping structure for pipe cladding according to claim 1, characterized in that: The outer wall of the pressing roller (5) is provided with a rubber sleeve (8).

6. The positioning and clamping structure for pipe cladding according to claim 1, characterized in that: A plurality of support blocks (9) are fixed at intervals in the installation groove, and the rotating rod (71) is rotatably connected to the plurality of support blocks (9).

7. The positioning and clamping structure for pipe cladding according to claim 1, characterized in that: Extension plates (10) are symmetrically arranged on both sides of the horizontal frame (2), and an inclined reinforcement plate (11) is fixed between the vertical frame (1) and the extension plate (10).

8. The positioning and clamping structure for pipe cladding according to claim 1, characterized in that: A plurality of spaced-apart tripods (12) are provided between the horizontal frame (2) and the extension plate (10).

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