Pipeline clamp holder capable of improving welding stability

Abstract

The invention belongs to the technical field of maintenance, and particularly relates to a pipeline clamp holder capable of improving welding stability, which is characterized in that two large clamping arms are of L-shaped structures, the bottoms of the large clamping arms are of semicircular structures, and the two large clamping arms are symmetrically arranged to form a triangular structure; the large clamping arm supporting block is mounted at the tops of the two large clamping arms through a first clamping arm supporting block fastening bolt assembly; the small clamping arm supporting block is mounted in the middle of the two large clamping arms in a sliding manner through a second clamping arm supporting block fastening bolt assembly; the manual screw rod is screwed into large screw holes which are vertically through in the tops of the large clamping arm supporting block and the small clamping arm supporting block from top to bottom; the screw fastening screw is screwed into the screw hole in the side face of the small clamping arm supporting block from outside to inside, and the screw hole is communicated with the large screw hole. The pipeline clamping device is simple in structure and easy and convenient to operate, the clamping requirements of pipelines of different specifications can be met, it is guaranteed that the pipelines are stably and reliably fixed, and the operation stability and safety of welding operation are effectively guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of maintenance, and particularly relates to a pipe gripper for improving welding stability. Background Art

[0002] In pipeline welding operations, in order to prevent the pipeline from shaking, displacing or being damaged during welding, and to ensure the stability and safety of the pipeline system, pipeline clamping devices are usually used to fix the position of the pipeline during the operation. However, the existing pipeline clamping devices have the following technical defects:

[0003] Inconvenient to use on-site: Usually, the pipeline needs to be horizontally placed and installed on a fixed bench for welding. However, the pipelines on-site are sometimes vertical and sometimes inclined, so on-site welding cannot be achieved. Existing clamping devices usually cannot quickly and conveniently adjust the height of two pipelines, resulting in manual docking during welding, which is time-consuming and laborious and affects work efficiency.

[0004] Limited clamping range: Pipelines with different diameters, wall thicknesses and materials have different requirements for clamping devices. Traditional clamping devices often have difficulty in simultaneously meeting the clamping requirements of multiple specifications of pipelines. They can only clamp one or a few diameters of pipelines, and cannot effectively clamp other diameters of pipelines, or the clamping is not firm, resulting in a decrease in welding quality and limiting their application range.

[0005] Complicated operation: The existing pipeline clamping devices have a complex structure and cumbersome operation, with a large adjustment and operation difficulty. This not only increases the welding preparation time, but also may cause errors and repeated welding during welding due to unstable clamping, resulting in reduced production efficiency and increased operation costs.

[0006] Insufficient stability: In traditional pipeline welding operations, due to factors such as pipeline material, size, weight and thermal stress generated during welding, the pipeline is prone to small or significant displacement or deformation during welding in existing clamping devices, resulting in inaccurate alignment of the welding joint, thereby affecting welding quality and welding stability, and increasing the risk of welding defects (such as lack of fusion, porosity, cracks, etc.).

[0007] Operation safety: During welding, traditional pipeline clamping devices may cause the pipeline to fall off or move accidentally due to insufficient clamping, causing harm to operators and posing a potential accident risk.

[0008] Based on this, there is an urgent need to develop a new pipeline clamping device to overcome the above technical defects of existing pipeline clamping devices. Summary of the Invention

[0009] The object of the present invention is to provide a pipe gripper that improves welding stability. The pipe gripper has a simple structure, is easy to operate, can meet the clamping requirements of pipes of different specifications, ensures stable and reliable fixation of the pipe, and effectively guarantees the operation stability and safety of the welding operation.

[0010] The technical solution for achieving the object of the present invention:

[0011] A pipe gripper that improves welding stability, characterized in that the gripper includes:

[0012] Large clamping arms, having an L-shaped structure, with a semi-circular structure at the bottom, and two large clamping arms are symmetrically arranged to form a triangular structure;

[0013] Large clamping arm support blocks, installed at the tops of the two large clamping arms through the first clamping arm support block fastening bolt assembly;

[0014] Small clamping arm support blocks, slidably installed at the middle parts of the two large clamping arms through the second clamping arm support block fastening bolt assembly;

[0015] A manual screw is screwed into the large screw holes that penetrate the tops of the large clamping arm support block and the small clamping arm support block from top to bottom;

[0016] Screw fastening screws are screwed into the screw holes on the side of the small clamping arm support block from outside to inside, and the screw holes communicate with the large screw holes.

[0017] The gripper further includes: clamping blocks, clamping blocks are respectively installed at the inner sides of the bottoms of the large clamping arms and at the center positions of the bottoms of the small clamping arm support blocks, and the inner shapes of the clamping blocks facing the pipe match the outer diameter shape of the pipe.

[0018] The gripper further includes: protruding blocks, one end of the clamping block close to the manual screw is connected with a protruding block protruding towards the pipe, and the protruding block and the clamping block are of an integrally formed structure.

[0019] The protruding block is a circular protruding block.

[0020] A through small screw hole is provided at one end of the clamping block far from the manual screw, and the small screw hole matches the small clamping arm bolt, and the small clamping arm bolt is screwed into the small screw hole of the clamping block from outside to inside.

[0021] The sizes and shapes of the clamping blocks and the protruding blocks are adjustable or replaceable.

[0022] The inner surfaces of the clamping blocks and the protruding blocks facing the pipe are processed with anti-slip lines or coated with an anti-slip coating.

[0023] The large clamping arm support blocks, the large clamping arms, and the small clamping arm support blocks are all of a double structure, and the two symmetrically arranged large clamping arms are connected through the large clamping arm support blocks and the small clamping arm support blocks to form an interconnected double triangular structure.

[0024] The beneficial technical effects of the present invention are as follows:

[0025] 1. By designing components such as the large clamp arm support block, large clamp arm, and small clamp arm support block of the pipe clamp of the present invention into simple modules, the assembly between components is made more convenient and rapid. At the same time, it ensures the firm clamping of the pipe during the welding process, effectively preventing the shaking or displacement at the pipe joint, thereby greatly improving the stability and precision of welding.

[0026] 2. The pipe clamp of the present invention connects two symmetrically arranged large clamp arms through the large clamp arm support block and the small clamp arm support block, forming a stable triangular structure to ensure the stability of the pipe clamp during the welding operation.

[0027] 3. By designing the large clamp arm support block, large clamp arm, and small clamp arm support block of the pipe clamp of the present invention into a double structure, the large clamp arm support block, small clamp arm support block, and large clamp arm form an interconnected double triangular structure, ensuring that the pipe clamp can maintain the structural stability even under high loads, effectively preventing displacement, shaking, or slipping caused by vibration or external forces during the clamping process.

[0028] 4. Through the design of the clamping block of the pipe clamp of the present invention, it can be adjusted or replaced according to the diameter and shape of the pipe, achieving the effect of adaptive adjustment, improving the fit between the clamping block and the pipe, and further enhancing the clamping stability.

[0029] 5. Through the design of the raised block of the pipe clamp of the present invention, especially the cooperation between the raised block and the clamping block, it provides convenience for fixing other auxiliary components, further enhancing the function and adaptability of the clamp. Similarly, the raised block can be adjusted or replaced according to the diameter and shape of the pipe, achieving the effect of adaptive adjustment, improving the fit between the clamping block and the pipe, and further enhancing the clamping stability.

[0030] 6. By machining anti-slip lines or coating with anti-slip coatings on the inner surfaces of the clamping block and the raised block in contact with the pipe, the friction between the clamping block or the raised block and the pipe is increased, further improving the clamping stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the overall structural schematic diagram of a pipe clamp provided by the present invention;

[0032] Figure 2 is the schematic diagram of the manual screw structure in a pipe clamp provided by the present invention;

[0033] Figure 3 is the schematic diagram of the large clamp arm support block structure in a pipe clamp provided by the present invention;

[0034] Figure 4 Schematic diagram of the large clamping arm structure in a pipe clamp provided by the present invention;

[0035] Figure 5 Schematic diagram of the small clamping arm support block structure in a pipe clamp provided by the present invention;

[0036] Figure 6 Schematic diagram of the clamping arm support block fastening bolt assembly structure in a pipe clamp provided by the present invention;

[0037] Figure 7 Schematic diagram of the small clamping arm bolt structure in a pipe clamp provided by the present invention;

[0038] Figure 8 Schematic diagram of the screw fastening screw structure in a pipe clamp provided by the present invention.

[0039] In the figure:

[0040] 1 - Manual screw; 2 - Large clamping arm support block; 3 - Large clamping arm; 4 - Small clamping arm support block; 5 - Clamping arm support block fastening bolt assembly; 6 - Small clamping arm bolt; 7 - Screw fastening screw; 8 - Clamping block; 9 - Protruding block;

[0041] 51 - First clamping arm support block fastening bolt assembly; 52 - Second clamping arm support block fastening bolt assembly. Specific embodiments

[0042] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0043] As Figure 1-8 shown, a pipe clamp for improving welding stability provided by the present invention includes: a manual screw 1, a large clamping arm support block 2, a large clamping arm 3, a small clamping arm support block 4, a clamping arm support block fastening bolt assembly 5, a small clamping arm bolt 6, a screw fastening screw 7, a clamping block 8, and a protruding block 9.

[0044] The clamping arm support block fastening bolt assembly 5 includes a first clamping arm support block fastening bolt assembly 51 and a second clamping arm support block fastening bolt assembly 52.

[0045] The large clamping arm 3 includes a side wall and a bottom, and the side wall and the bottom form an integrally formed L-shaped structure. The bottom is a semi-circular structure. Two large clamping arms 3 are symmetrically arranged, and the semi-circular bottoms are arranged opposite to each other to form a triangular structure.

[0046] A through hole is provided at the top of the large clamping arm 3, and a sliding groove is axially provided on the side wall;

[0047] The large clamping arm support block 2 is installed on the tops of the two large clamping arms 3 through the cooperation of the first clamping arm support block fastening bolt assembly 51 and the through hole;

[0048] The small clamp arm support block 4 is installed in the middle of the two large clamp arms 3 through the cooperation of the second clamp arm support block fastening bolt assembly 52 and the chute. The small clamp arm support block 4 can move axially along the side wall of the large clamp arm 3 through the second clamp arm support block fastening bolt assembly 52 and the chute.

[0049] At the central positions of the tops of the large clamp arm support block 2 and the small clamp arm support block 4, there are large screw holes that penetrate up and down coaxially. The large screw holes match the threads of the manual screw rod 1. The manual screw rod 1 is screwed into the large screw holes of the large clamp arm support block 2 and the small clamp arm support block 4 from top to bottom to adjust the positions of the large clamp arm 3 and the small clamp arm support block 4.

[0050] Clamping blocks 8 are respectively installed at the inner sides of the bottoms of the large clamp arms 3 and at the central positions of the bottoms of the small clamp arm support blocks 4. The inner shape of the clamping block 8 facing the pipeline matches the shape of the outer diameter of the pipeline and is used to clamp the pipeline to be welded.

[0051] Preferably, one end of the clamping block 8 close to the manual screw rod 1 is connected with a protruding block 9 that protrudes towards the pipeline. The protruding block 9 and the clamping block 8 are of an integrally formed structure. The protruding block 9 can be a circular protruding block.

[0052] Preferably, the sizes, shapes, etc. of the clamping block 8 and the protruding block 9 are all adjustable or replaceable, so that they can be adaptively adjusted according to the diameter and shape of the pipeline to be welded. When contacting the pipeline, the degree of fit between the clamping block 8 or the protruding block 9 and the pipeline is improved, and the clamping stability is further enhanced.

[0053] Preferably, the inner surfaces of the clamping block 8 and the protruding block 9 facing the pipeline are processed with anti-slip threads or coated with an anti-slip coating. When contacting the pipeline, the friction between the clamping block 8 or the protruding block 9 and the pipeline is increased, and the clamping stability is further improved.

[0054] One end of the clamping block 8 far from the manual screw rod 1 is provided with a through small screw hole, which matches the small clamp arm bolt 6. The small clamp arm bolt 6 is screwed into the small screw hole of the clamping block 8 from outside to inside to fix the position of the pipeline to be welded.

[0055] At the central position of the side surface of the small clamp arm support block 4, there is a screw hole that penetrates through the large screw hole. The screw hole matches the screw rod fastening screw 7. The screw rod fastening screw 7 is screwed into the screw hole of the small clamp arm support block 4 from outside to inside to fix the rotation position of the manual screw rod 1.

[0056] Preferably, the large clamp arm support block 2, the large clamp arm 3, and the small clamp arm support block 4 are all of a double structure. The two symmetrically arranged large clamp arms 3 are connected through the large clamp arm support block 2 and the small clamp arm support block 4 to form an interconnected double triangular structure, which serves as the main load-bearing and supporting part of the gripper. This design utilizes the stability principle of the triangle, and can maintain the structural stability even under high loads, effectively preventing shaking or slipping during the clamping process due to vibration or external forces.

[0057] When using a pipe gripper for improving welding stability provided by the present invention to perform pipe welding operations, the working principle is as follows:

[0058] When welding pipes on-site, loosen the clamping arm support block fastening bolt assembly 5, insert the first section of the pipe into the large clamping arm 3, manually adjust the manual screw 1 until the circular protruding blocks 9 at the bottom of the large clamping arm 3 can all contact the outer wall of the pipe, tighten the first clamping arm support block fastening bolt assembly 51, and rotate the manual screw 1 to make the small clamping arm support block 4 perform an axial displacement along the chute of the large clamping arm 3 until the circular protruding blocks 9 at the bottom of the small clamping arm support block 4 can all contact the outer wall of the pipe, then tighten the second clamping arm support block fastening bolt assembly 52 to firmly fix the first section of the pipe on the pipe gripper of the present invention. Place another section of the pipe between the clamping block 8 of the large clamping arm 3 and the clamping block 8 of the small clamping arm support block 4, rotate the small clamping arm bolt 6 to adjust the position of the pipe so that it is aligned with the interface of the first section of the pipe, and then tighten the small clamping arm bolt 6. After confirming that both sections of the pipe are firmly fixed on the pipe gripper of the present invention and the interfaces are aligned, tighten the screw fastening screw 7 to prevent loosening during the welding operation.

[0059] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention. Contents not described in detail in the present invention can all adopt existing technologies.

Claims

1. A pipe clamp for improving welding stability, characterized in that: The holder comprises: The large clamping arm (3) is an L-shaped structure, the bottom of which is a semicircular structure, and the two large clamping arms (3) are symmetrically arranged to form a triangular structure; A large clamping arm support block (2) is mounted on the top of the two large clamping arms (3) via a first clamping arm support block fastening bolt assembly (51); A small clamp arm support block (4) is slidably mounted on the middle of the two large clamp arms (3) via a second clamp arm support block fastening bolt assembly (52); The manual screw rod (1) is screwed from top to bottom into the large screw holes that penetrate the top of the large clamp arm support block (2) and the small clamp arm support block (4); The screw rod fastening screw (7) is screwed into the screw hole on the side of the small clamp arm support block (4) from outside to inside, and the screw hole is connected with the large screw hole.

2. A pipe clamp for improving welding stability according to claim 1, characterized in that: The clamp also includes a clamping block (8), which is respectively installed on the inner side of the bottom of the large clamping arm (3) and the center of the bottom of the small clamping arm support block (4), and the inner side of the clamping block (8) facing the pipe matches the outer diameter of the pipe.

3. A pipe clamp for improving welding stability according to claim 2, characterized in that: The clamp further comprises: a protruding block (9); one end of the clamping block (8) close to the manual screw rod (1) is connected to the protruding block (9) protruding towards the pipeline; the protruding block (9) and the clamping block (8) are an integrally formed structure.

4. A pipe clamp for improving welding stability according to claim 3, characterized in that: The protruding block (9) is a circular protruding block.

5. A pipe clamp for improving welding stability according to claim 2, characterized in that: The end of the clamping block (8) away from the manual screw rod (1) is provided with a through small screw hole, the small screw hole matches the small clamping arm bolt (6), and the small clamping arm bolt (6) is screwed into the small screw hole of the clamping block (8) from the outside to the inside.

6. A pipe clamp for improving welding stability according to claim 3, characterized in that: The size and shape of the clamping block (8) and the protruding block (9) are adjustable or replaceable.

7. A pipe clamp for improving welding stability according to claim 3, characterized in that: The inner surfaces of the clamping block (8) and the protruding block (9) facing the pipe are processed with anti-skid patterns or coated with an anti-skid coating.

8. The pipe clamp for improving welding stability according to claim 1, characterized in that: The large clamp arm support block (2), the large clamp arm (3) and the small clamp arm support block (4) are all double structures, and two symmetrically arranged large clamp arms (3) are connected through the large clamp arm support block (2) and the small clamp arm support block (4) to form a double triangular structure connected to each other.

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