Composite pipe welding equipment

Abstract

The invention discloses composite pipe welding equipment, which belongs to the technical field of composite pipe processing and comprises a base, two composite pipe bodies are arranged at the top end of the base, a welding mechanism with a welding joint is connected between the two composite pipe bodies, and the two composite pipe bodies are sleeved with the two ends of the welding joint respectively. Friction mechanisms with rollers are arranged at the two ends of the welding connector, each friction mechanism comprises a roller rotationally installed outside the composite pipe body, and an electromagnetic element is installed in each roller. By arranging the roller with the magnetic plate and the friction ring filled with the magnetic fluid, automatic polishing treatment on the inner wall and the outer wall of the composite pipe body is achieved, and meanwhile the magnetic fluid pushes the friction ring to rotate under the action of a magnetic field; the first friction plate and the second friction plate can efficiently and evenly remove oxide layers on the inner surface and the outer surface of the composite pipe body, and secondary oxidation caused by the fact that the end of the composite pipe body is exposed in air is avoided by conducting polishing treatment on the interior of a welding connector.

Description

Technical Field

[0001] The present invention relates to the technical field of composite pipe processing, and particularly relates to a composite pipe welding device. Background Art

[0002] In the field of pipeline engineering, composite pipes are widely used in multiple industries such as petroleum, natural gas, chemical industry, and water supply due to their excellent physical and chemical properties, such as high strength, corrosion resistance, and light weight. The welded connection between composite pipes is a key link in the installation of pipeline systems, and the welding quality directly affects the overall performance and safety of the pipeline system.

[0003] Before the welded connection of composite pipes, the inner and outer surfaces of the connection part usually need to be polished to remove the oxide layer to improve the welding quality. However, traditional methods mostly use manual or simple mechanical polishing, which is difficult to ensure the uniformity and thoroughness of polishing. Especially for the inner wall polishing, the operation difficulty is large and the effect is often not ideal. After polishing, the ends of the composite pipes are exposed to the air and are prone to secondary oxidation, which affects the welding quality. Especially in the case of long waiting for welding or high environmental humidity, the problem of secondary oxidation is more prominent. Summary of the Invention

[0004] The purpose of the present invention is to provide a composite pipe welding device to solve the problem that after polishing, the ends of the composite pipes are exposed to the air and are prone to secondary oxidation, which affects the welding quality as mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A composite pipe welding device, including a base, two composite pipe bodies are arranged at the top of the base, a welding mechanism with a welding joint is connected between the two composite pipe bodies, both ends of the welding joint are sleeved outside the two composite pipe bodies respectively, friction mechanisms with rollers are arranged at both ends of the welding joint, the friction mechanism includes a roller rotatably installed outside the composite pipe body, an electromagnetic element is installed inside the roller, the output end of the electromagnetic element is connected to a magnetic plate, and a first friction plate for polishing the outer wall of the composite pipe body is installed on the surface of the magnetic plate close to the composite pipe body. A moving component is arranged inside the composite pipe body, the moving component includes a friction ring rotatably installed inside the composite pipe body, a second friction plate for polishing the inner wall of the composite pipe body is installed on the surface of the friction ring close to the composite pipe body, and a magnetic fluid for driving the friction ring to rotate by magnetic field is filled in the inner cavity of the friction ring.

[0006] As a preferred technical solution of the present invention, two support rods are fixedly installed at the top of the base, and a first gear is rotatably installed between the two support rods. The first gear is fixedly installed on the outer surface of the drum. A motor is fixedly installed at the top of the base. The output shaft of the motor is fixedly installed with a second gear, and the first gear and the second gear are meshed. A circular ring member is installed inside the friction ring, and a plurality of wind plates for guiding are rotatably installed on the surface of the circular ring member.

[0007] As a preferred technical solution of the present invention, an electrostatic adsorption plate for adsorbing polishing debris is fixedly installed on the inner wall of the drum, and a discharge pipe is communicated and installed on one side of the drum.

[0008] As a preferred technical solution of the present invention, an outer seal for welding and sealing is installed inside the welded joint near the connection of the two composite pipe bodies. A welding wire is installed inside the outer seal. An installation plate is installed at the top of the base, and a welding machine body is fixedly installed at the bottom of the installation plate. The output end of the welding machine body is electrically fused to the welding wire. An inner seal for welding and sealing is installed at the connection of the inner walls of the two composite pipe bodies, and the outer seal and the inner seal are fixedly connected by a connecting rod.

[0009] As a preferred technical solution of the present invention, a protective layer for anti-corrosion is installed on the inner wall of the outer seal close to the composite pipe body, and the protective layer is composed of multiple layers.

[0010] As a preferred technical solution of the present invention, rotating plates for limiting the friction ring are rotatably installed on both sides of the inner seal, and the rotating plates are fixedly connected to the friction ring through cross bars.

[0011] As a preferred technical solution of the present invention, an oil-absorbing cotton for protecting the composite pipe body from oxidation is installed on the inner wall of the rotating plate close to the composite pipe body, and alcohol is adsorbed inside the oil-absorbing cotton.

[0012] As a preferred technical solution of the present invention, a support mechanism with a pressing plate is arranged on the outer surface of the welded joint. An installation plate is arranged at the top of the base, and a support frame is fixedly installed at the bottom of the installation plate. A plurality of first electric push rods are fixedly installed on the inner wall of the support frame close to the welded joint. The output shaft of the first electric push rod is fixedly installed with a pressing plate for positioning the welded joint, and a rubber plate for increasing the stability of the welded joint is fixedly installed on the surface of the pressing plate close to the composite pipe body.

[0013] As a preferred technical solution of the present invention, a limiting mechanism is provided at the top of the base. The limiting mechanism includes a top plate fixedly installed at the top of the base. A second electric push rod is fixedly installed at the bottom end of the mounting plate. A limiting plate is fixedly installed on the output shaft of the second electric push rod close to the top plate. The composite pipe body is arranged between the limiting plate and the top plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting a roller with a magnetic plate and a friction ring filled with magnetic fluid inside, the present invention realizes the automatic grinding treatment of the inner and outer walls of the composite pipe body. The electromagnetic element drives the magnetic plate to rotate, and at the same time, the magnetic fluid pushes the friction ring to rotate under the action of the magnetic field, so that the first friction plate and the second friction plate can efficiently and evenly remove the oxide layer on the inner and outer surfaces of the composite pipe body, greatly improving the grinding efficiency and quality, reducing manual operation, and lowering the labor intensity.

[0015] 2. By performing grinding treatment inside the welded joint, the present invention avoids the secondary oxidation caused by the exposure of the end of the composite pipe body to the air. At the same time, the oil-absorbing cotton on the rotating plate can adsorb and remove the oil stains and impurities on the inner wall of the composite pipe body, further ensuring the cleanliness of the welded joint and improving the welding quality.

[0016] 3. By installing an outer seal and an inner seal inside the welded joint, and melting the welding wire by energizing the welding machine, the present invention realizes the complete connection and sealing of the composite pipe body. Moreover, the protective layer on the outer seal adopts a multi-layer structure, having good anti-corrosion performance, effectively extending the service life of the welded joint. At the same time, the combined use of the inner seal and the outer seal provides double sealing guarantees, further improving the sealing performance and reliability of the welded joint.

[0017] 4. By setting a support mechanism and a limiting mechanism, the present invention realizes the precise positioning and stable connection of the welded joint and the composite pipe body. The rubber plate increases the stability of the connection; the cooperation between the limiting plate and the top plate prevents it from shifting during the welding process, ensuring the precision and stability of the welding.

[0018] 5. By setting an electrostatic adsorption plate, the present invention can effectively adsorb the debris generated during the grinding process, preventing it from scattering and polluting the environment. The discharge pipe connected to one side of the roller facilitates the timely discharge of the adsorbed debris, realizing the centralized treatment and environmental protection discharge of the debris, not only improving the working environment, but also reducing the influence of the debris on the welding quality and improving the overall production efficiency. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the internal structural schematic diagram of the welded joint of the present invention; Figure 3 Structural schematic diagram of part A in Figure 2 the present invention; Figure 4 Structural schematic diagram of the inner seal of the present invention; Figure 5 Internal structural schematic diagram of the composite pipe body of the present invention; Figure 6 Structural schematic diagram of the first gear of the present invention; Figure 7 Internal structural schematic diagram of the friction ring of the present invention; Figure 8 Structural schematic diagram of the support mechanism of the present invention; Figure 9 Structural schematic diagram of the limiting mechanism of the present invention.

[0020] In the figure: 1, base; 2, composite pipe body; 3, welding mechanism; 31, welding machine body; 32, welding joint; 33, outer seal; 34, welding wire; 35, inner seal; 36, protective layer; 4, mounting plate; 5, support mechanism; 51, support frame; 52, first electric push rod; 53, pressing plate; 54, rubber plate; 6, friction mechanism; 61, roller; 62, magnetic plate; 63, electrostatic adsorption plate; 64, moving component; 641, friction ring; 642, magnetic fluid; 643, circular ring part; 644, wind plate; 65, electromagnetic element; 66, rotating plate; 67, oil-absorbing cotton; 68, first gear; 69, support rod; 610, second gear; 611, motor; 7, limiting mechanism; 71, second electric push rod; 72, limiting plate; 73, top plate. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-9 , the present invention provides a composite pipe welding device, including a base 1. Two composite pipe bodies 2 are arranged at the top end of the base 1. A welding mechanism 3 with a welding joint 32 is connected between the two composite pipe bodies 2. Both ends of the welding joint 32 are sleeved outside the two composite pipe bodies 2 respectively.

[0023] Among them, the welding joint 32, as a key component of welding, is sleeved and connected to the two composite pipe bodies 2 at both ends, playing a role of connection and transition. During the welding process, the welding-related structures inside the welding joint 32 can achieve effective welding of the two composite pipe bodies 2.

[0024] In the technical solution of the embodiment of the present application, friction mechanisms 6 with rollers 61 are provided at both ends of the welded joint 32. The friction mechanism 6 includes a roller 61 rotatably mounted outside the composite pipe body 2. An electromagnetic element 65 is installed inside the roller 61. The output end of the electromagnetic element 65 is connected to a magnetic plate 62. A first friction plate for polishing the outer wall of the composite pipe body 2 is installed on the surface of the magnetic plate 62 close to the composite pipe body 2. A moving component 64 is arranged inside the composite pipe body 2. The moving component 64 includes a friction ring 641 rotatably mounted inside the composite pipe body 2. A second friction plate for polishing the inner wall of the composite pipe body 2 is installed on the surface of the friction ring 641 close to the composite pipe body 2. And a magnetorheological fluid 642 for driving the friction ring 641 to rotate by a magnetic field is filled in the inner cavity of the friction ring 641.

[0025] Among them, when two composite pipe bodies 2 are inserted into the inside of the welded joint 32, by rotating the roller 61, the roller 61 drives the magnetic plate 62 to rotate. At the same time, by starting the electromagnetic element 65, the magnetorheological fluid 642 inside the friction ring 641 is driven to flow. And through the guiding action of the wind plate 644, the magnetorheological fluid 642 can stably flow inside the friction ring 641. At this time, the magnetorheological fluid 642 will push the friction plate to rotate. At this time, the magnetic plate 62 and the friction plate can drive the first friction plate and the second friction plate on their surfaces to polish the inner and outer surfaces of the composite pipe body 2 respectively, so that the first friction plate and the second friction plate can efficiently and evenly remove the oxide layers on the inner and outer surfaces of the composite pipe body 2, greatly improving the polishing efficiency and quality, reducing manual operation, and reducing the labor intensity.

[0026] Among them, the magnetorheological fluid 642 is a special magnetic nanoparticle suspension with good fluidity and magnetic responsiveness. Under the action of an external magnetic field, the magnetorheological fluid 642 can quickly respond and form a specific flow pattern. Therefore, when the magnetic plate 62 moves, it can drive the magnetorheological fluid 642 to move, and the magnetorheological fluid 642 will then drive the friction ring 641 to rotate.

[0027] In some embodiments, two support rods 69 are fixedly installed at the top end of the base 1. A first gear 68 is rotatably installed between the two support rods 69. The first gear 68 is fixedly installed on the outer surface of the roller 61. A motor 611 is fixedly installed at the top end of the base 1. A second gear 610 is fixedly installed on the output shaft of the motor 611. And the first gear 68 and the second gear 610 are meshed. A circular ring member 643 is installed inside the friction ring 641. A plurality of wind plates 644 for guiding are rotatably installed on the surface of the circular ring member 643.

[0028] Among them, by starting the motor 611, the motor 611 drives the second gear 610 to rotate. The second gear 610 drives the first gear 68 to rotate. The first gear 68 drives the roller 61 to rotate. The roller 61 drives the magnetic plate 62 to rotate. The magnetic plate 62 pushes the magnetorheological fluid 642 inside the friction ring 641 to flow. At the same time, through the guiding effect of the cooperation between the flow of the magnetorheological fluid 642 and the rotation, the flow of the magnetorheological fluid 642 becomes more stable, and stably pushes the friction ring 641 to rotate, driving the second friction plate to polish the inner wall of the composite pipe body 2. This design realizes the synchronous polishing of the inner and outer walls of the composite pipe body 2, improving the polishing efficiency and quality.

[0029] In some embodiments, an electrostatic adsorption plate 63 for adsorbing polishing debris is fixedly installed on the inner wall of the roller 61, and a discharge pipe is connected and installed on one side of the roller 61.

[0030] Among them, the electrostatic adsorption plate 63 utilizes the electrostatic adsorption effect to adsorb and fix fine particles on the surface through the electrostatic field force to achieve efficient cleaning. Therefore, when polishing the outer wall of the composite pipe body 2, the generated debris will be adsorbed by the electrostatic adsorption plate 63, avoiding the influence of debris scattering on the operation of the equipment and the surrounding environment. After polishing, the debris can be discharged through the discharge pipe, facilitating the cleaning and maintenance of the use environment of the roller 61.

[0031] In some embodiments, an outer seal 33 for welding and sealing is installed inside the welded joint 32 near the connection of the two composite pipe bodies 2. A welding wire 34 is installed inside the outer seal 33. An installation plate 4 is installed at the top end of the base 1. A welding machine body 31 is fixedly installed at the bottom end of the installation plate 4. The output end of the welding machine body 31 is electrically fused to the welding wire 34. An inner seal 35 for welding and sealing is installed at the connection of the inner walls of the two composite pipe bodies 2, and the outer seal 33 and the inner seal 35 are fixedly connected by a connecting rod.

[0032] Among them, after the welding machine body 31 is powered on, the welding wire 34 is heated and expands and melts in cooperation with the outer seal 33 and the inner seal 35 near the surface of the welded joint 32, so that the connection between the two composite pipe bodies 2 is completely connected and sealed. This design realizes the sealed welding of the composite pipe body 2, improving the sealing performance and connection strength of the welded joint 32.

[0033] In some embodiments, a protective layer 36 for anti-corrosion is installed on the inner wall of the outer seal 33 close to the composite pipe body 2, and the protective layer 36 is composed of a multi-layer structure.

[0034] Among them, the protective layer 36 is made of carbon fiber reinforced composite material, which can play an anti-corrosion protection role for the welded joint 32. The design of the multi-layer structure increases the protection performance of the protective layer 36. The protective layer 36 can absorb welding stress, reduce the crack risk caused by thermal expansion / contraction, extend the service life of the welded joint 32, and improve the reliability of the equipment.

[0035] In some embodiments, rotating plates 66 for limiting the friction ring 641 are rotatably installed on both sides of the inner seal 35. The rotating plates 66 are fixedly connected to the friction ring 641 through cross bars.

[0036] Among them, the rotating plates 66 can limit the friction ring 641 to prevent the friction ring 641 from shifting during rotation, ensure the close contact between the friction ring 641 and the inner wall of the composite pipe body 2, improve the grinding effect, and ensure the grinding quality of the inner wall of the composite pipe body 2.

[0037] In some embodiments, an oil-absorbing cotton 67 for protecting the composite pipe body 2 from oxidation is installed on the inner wall of the rotating plate 66 close to the composite pipe body 2, and alcohol is adsorbed inside the oil-absorbing cotton 67.

[0038] Among them, before inserting the composite pipe body 2 into the welded joint 32, the alcohol attached to the oil-absorbing cotton 67 can wipe the inner wall of the composite pipe body 2 to remove its oil stains and impurities. At the same time, the volatilization of alcohol can take away the heat from the inner wall of the composite pipe body 2 to prevent its oxidation, which is beneficial to the smooth clamping of the composite pipe body 2 inside the welded joint 32 and improves the welding quality.

[0039] In some embodiments, a support mechanism 5 with a pressing plate 53 is arranged on the outer surface of the welded joint 32. An installation plate 4 is arranged at the top end of the base 1. A support frame 51 is fixedly installed at the bottom end of the installation plate 4. A plurality of first electric push rods 52 are fixedly installed on the inner wall of the support frame 51 close to the welded joint 32. The output shaft of the first electric push rod 52 is fixedly installed with a pressing plate 53 for positioning the welded joint 32. A rubber plate 54 for increasing the stability of the welded joint 32 is fixedly installed on the surface of the pressing plate 53 close to the composite pipe body 2.

[0040] Among them, when welding and connecting through the welded joint 32 and the composite pipe body 2, first, the first electric push rod 52 is used to push the pressing plate 53 to position the welded joint 32. The rubber plate 54 increases the friction between the pressing plate 53 and the welded joint 32, improves the stability of the welded joint 32, prevents the welded joint 32 from moving during the welding process, and ensures the accuracy of welding.

[0041] In some embodiments, a limiting mechanism 7 is provided at the top end of the base 1. The limiting mechanism 7 includes a top plate 73 fixedly installed at the top end of the base 1. A second electric push rod 71 is fixedly installed at the bottom end of the mounting plate 4. A limiting plate 72 is fixedly installed at the output shaft of the second electric push rod 71 close to the top plate 73. The composite pipe body 2 is arranged between the limiting plate 72 and the top plate 73.

[0042] Among them, by pushing the limiting plate 72 through the second electric push rod 71, the arc-shaped limiting plate 72 cooperates with the top plate 73, which can limit composite pipe bodies 2 of different models, increases the overall connection stability between the composite pipe body 2 and the welding joint 32, prevents the composite pipe body 2 from shifting during the welding process, and improves the welding quality.

[0043] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A composite pipe welding device, comprising a base (1), characterized in that: At the top of the base (1), there are two composite pipe bodies (2). A welding mechanism (3) with a welding joint (32) is connected between the two composite pipe bodies (2). The two ends of the welding joint (32) are respectively sleeved outside the two composite pipe bodies (2). At both ends of the welding joint (32), there are friction mechanisms (6) with rollers (61). The friction mechanism (6) includes a roller (61) rotatably installed outside the composite pipe body (2). An electromagnetic element (65) is installed inside the roller (61). The output end of the electromagnetic element (65) is connected to a magnetic plate (62). And a first friction plate for polishing the outer wall of the composite pipe body (2) is installed on the surface of the magnetic plate (62) close to the composite pipe body (2). A moving component (64) is arranged inside the composite pipe body (2). The moving component (64) includes a friction ring (641) rotatably installed inside the composite pipe body (2). A second friction plate for polishing the inner wall of the composite pipe body (2) is installed on the surface of the friction ring (641) close to the composite pipe body (2). And a magnetic fluid (642) for driving the friction ring (641) to rotate by magnetic field is filled in the inner cavity of the friction ring (641).

2. The composite pipe welding equipment according to claim 1, characterized in that: At the top of the base (1), two support rods (69) are fixedly installed. And a first gear (68) is rotatably installed between the two support rods (69). The first gear (68) is fixedly installed on the outer surface of the roller (61). At the top of the base (1), a motor (611) is fixedly installed. The output shaft of the motor (611) is fixedly installed with a second gear (610). And the first gear (68) and the second gear (610) are meshed. A circular ring part (643) is installed inside the friction ring (641). A plurality of wind plates (644) for guiding are rotatably installed on the surface of the circular ring part (643).

3. The composite pipe welding device according to claim 1, characterized in that: An electrostatic adsorption plate (63) for adsorbing polishing debris is fixedly installed on the inner wall of the roller (61). A discharge pipe is communicated and installed on one side of the roller (61).

4. The composite pipe welding device according to claim 1, characterized in that: An outer seal (33) for welding and sealing is installed inside the welding joint (32) near the connection of the two composite pipe bodies (2). A welding wire (34) is installed inside the outer seal (33). An installation plate (4) is installed at the top of the base (1). A welding machine body (31) is fixedly installed at the bottom of the installation plate (4). The output end of the welding machine body (31) is electrically fused with the welding wire (34). An inner seal (35) for welding and sealing is installed at the connection of the inner walls of the two composite pipe bodies (2). And the outer seal (33) and the inner seal (35) are fixedly connected by a connecting rod.

5. The composite pipe welding device according to claim 4, characterized in that: A protective layer (36) for anti-corrosion is installed on the inner wall of the outer seal (33) close to the composite pipe body (2). The protective layer (36) is composed of multiple layers of structures.

6. The composite pipe welding equipment according to claim 4, characterized in that: Rotating plates (66) for limiting the friction ring (641) are rotatably installed on both sides of the inner seal (35). The rotating plates (66) are fixedly connected with the friction ring (641) through cross bars.

7. A composite pipe welding device according to claim 6, characterized in that: An oil-absorbing cotton (67) for protecting the composite pipe body (2) from oxidation is installed near the inner wall of the rotating plate (66), and alcohol is adsorbed inside the oil-absorbing cotton (67).

8. A composite pipe welding device according to claim 1, characterized in that: A support mechanism (5) with a pressing plate (53) is arranged on the outer surface of the welding joint (32). An installation plate (4) is arranged at the top end of the base (1). A support frame (51) is fixedly installed at the bottom end of the installation plate (4). A plurality of first electric push rods (52) are fixedly installed on the inner wall of the support frame (51) close to the welding joint (32). A pressing plate (53) for positioning the welding joint (32) is fixedly installed on the output shaft of the first electric push rod (52). A rubber plate (54) for increasing the stability of the welding joint (32) is fixedly installed on the surface of the pressing plate (53) close to the composite pipe body (2).

9. A composite pipe welding device according to claim 8, characterized in that: A limiting mechanism (7) is arranged at the top end of the base (1). The limiting mechanism (7) includes a top plate (73) fixedly installed at the top end of the base (1). A second electric push rod (71) is fixedly installed at the bottom end of the installation plate (4). A limiting plate (72) is fixedly installed on the output shaft of the second electric push rod (71) close to the top plate (73). The composite pipe body (2) is arranged between the limiting plate (72) and the top plate (73).

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