An inner wall anticorrosion spraying tool for welded steel pipe machining

Abstract

The utility model relates to welding steel pipe production technical field especially relates to a kind of inner wall anticorrosion spraying frock for welding steel pipe processing, including horizontal base, fixed clamping seat, displacement component, movable clamping seat, clamping assembly, material box, pumping pipe, liquid guide slip ring, spray pipe, turnover assembly and support component, fixed clamping seat, material box and support component are installed on horizontal base, fixed clamping seat and movable clamping seat respectively install the clamping assembly for clamping welding steel pipe component, the pumping pipe of material box is connected with spray pipe through the liquid guide slip ring installed in fixed clamping seat, spray pipe is driven to overturn around axis by the turnover assembly installed in movable clamping seat.The utility model can satisfy the inner wall anticorrosion spraying demand of welding steel pipe with larger inner diameter;Movable clamping seat is driven by displacement component and can be displaced horizontally longitudinally and horizontally transversely, beneficial to the feeding and discharging of welding steel pipe component.

Description

Technical Field

[0001] This utility model relates to the field of welded steel pipe production technology, and in particular to an anti-corrosion spraying tool for the inner wall of welded steel pipe processing. Background Technology

[0002] Corrosion protection treatment of the inner wall of welded steel pipes offers multiple significant advantages, greatly improving the overall performance and service life of the pipeline. Firstly, the anti-corrosion layer effectively isolates the inner wall of the steel pipe from direct contact with the transported medium (such as water, oil, gas, or chemical solutions), preventing electrochemical corrosion, oxidation reactions, and microbial erosion. This avoids the risk of reduced pressure bearing capacity or perforation and leakage due to thinning of the pipe wall caused by rust. Secondly, the smooth anti-corrosion coating significantly reduces frictional resistance during fluid transport, minimizing energy loss, which can save substantial operating costs, especially for long-distance pipelines. Furthermore, corrosion protection maintains the purity of the medium, preventing impurities such as rust from contaminating water quality or affecting the quality of chemical products, which is particularly important in the food and pharmaceutical industries. Good internal corrosion protection also reduces pipe scaling, lowering maintenance frequency and cleaning costs, while suppressing stress concentration caused by localized corrosion, enhancing the pipeline's resistance to seismic activity and deformation.

[0003] Existing anti-corrosion spraying fixtures for welded steel pipe processing have shortcomings in use. They all adopt the method of filling and flipping spraying, which is mainly suitable for welded steel pipes with smaller inner diameters and cannot meet the anti-corrosion spraying requirements of welded steel pipes with larger inner diameters.

[0004] In view of this, the inventors expect to optimize and improve the existing internal anti-corrosion spraying tooling for welded steel pipe processing. Summary of the Invention

[0005] The purpose of this utility model is to overcome the above-mentioned problems existing in the traditional technology and provide an inner wall anti-corrosion spraying tool for welding steel pipe processing.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: A welding steel pipe internal anti-corrosion spraying fixture includes a horizontal base, a fixed clamping seat, a displacement component, a movable clamping seat, a clamping component, a material box, a pumping pipe, a liquid guiding slip ring, a spray pipe, a flipping component, and a support component. The fixed clamping seat, material box, and support component are mounted on the horizontal base. The fixed clamping seat and the movable clamping seat are each equipped with a clamping component for clamping the welding steel pipe component. The movable clamping seat is driven by the displacement component to perform horizontal longitudinal and horizontal transverse displacement. The pumping pipe of the material box is connected to the spray pipe through the liquid guiding slip ring installed in the fixed clamping seat. The spray pipe is driven by the flipping component installed in the movable clamping seat to flip around an axis.

[0007] Furthermore, in the above-mentioned welding steel pipe processing inner wall anti-corrosion spraying tooling, the displacement component includes a carrier, the upper side of which is provided with a slide groove, a horizontal longitudinal push rod is installed in the slide groove, a frame that slides and is limited in the slide groove is installed in the movable end of the horizontal longitudinal push rod, and a horizontal longitudinal linear guide pair for supporting the moving clamping seat is installed in the frame.

[0008] Furthermore, in the above-mentioned welding steel pipe processing inner wall anti-corrosion spraying tooling, the clamping assembly includes a rotary driver, an annular turntable and a clamping plate. One side of the annular turntable is connected to the movable ring of the rotary driver, and the other side of the annular turntable is provided with a plurality of arc-shaped push grooves along the circumference. One end of the clamping plate is provided with a slide head that slides and is restricted in the arc-shaped push grooves.

[0009] Furthermore, in the above-mentioned welding steel pipe processing inner wall anti-corrosion spraying tooling, the inner side of the fixed clamping seat is provided with a first circular groove, and the inner end of the first circular groove is provided with a plurality of first radial sliding grooves along the circumference to facilitate the sliding and limiting of the clamping plate. A through groove is provided at the center of the fixed clamping seat, and the fixed ring part of the liquid guiding slip ring is fixed to the inner wall of the through groove.

[0010] Furthermore, in the above-mentioned welding steel pipe processing inner wall anti-corrosion spraying tooling, the inner side of the movable clamping seat is provided with a second circular groove, and the inner end of the second circular groove is provided with a plurality of second radial sliding grooves along the circumference to facilitate the sliding and limiting of the clamping plate, and a groove is provided at the center of the movable clamping seat.

[0011] Furthermore, in the aforementioned welding steel pipe processing inner wall anti-corrosion spraying fixture, the flipping assembly includes a flipping motor, a synchronous belt, and an anti-slip plug sleeve. The output end of the flipping motor is equipped with an anti-slip pulley, and the anti-slip pulley is connected to the anti-slip plug sleeve via the synchronous belt. The anti-slip plug sleeve is located in a groove and is provided with movable support by a movable clamping seat. A square plug slot is provided in the anti-slip plug sleeve, and the spray pipe has a square blind opening at one end near the anti-slip plug sleeve to facilitate cooperation with the directional plug slot.

[0012] Furthermore, in the above-mentioned welding steel pipe processing inner wall anti-corrosion spraying fixture, the support component includes a lifting push rod, and the movable end of the lifting push rod is equipped with a support roller via a roller seat; the support component has two rows, and the distance between the two rows is equal to the radius of the welding steel pipe component.

[0013] Furthermore, the aforementioned welding steel pipe processing inner wall anti-corrosion spraying fixture also includes a controller, which is connected to the displacement component, the clamping component, the suction pump built into the material box, and the support component.

[0014] The beneficial effects of this utility model are: 1. This utility model can meet the requirements for anti-corrosion spraying of the inner wall of welded steel pipes with large inner diameters. The movable clamping seat is driven by the displacement component and can perform horizontal longitudinal and horizontal transverse displacement, which is beneficial for loading and unloading welded steel pipe components to adapt to different specifications and spraying requirements. The clamping component drives the annular turntable through a rotary driver, and uses the cooperation of arc-shaped push groove and slide head to make the clamping plate slide radially, so as to achieve stable clamping of welded steel pipe components of different diameters.

[0015] 2. In this utility model, the spray pipe is rotated around the axis by the flipping component, and a row of spray holes is opened along the direction, which can make the anti-corrosion coating evenly sprayed on the inner wall of the steel pipe; the support component provides auxiliary support for the welded steel pipe to ensure the stability of the steel pipe during the spraying process.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the fixed clamping seat in this utility model; Figure 3 This is a schematic diagram of the structure of the movable clamping seat in this utility model; Figure 4 This is a schematic diagram of the clamping component in this utility model; Figure 5 This is a schematic diagram of the displacement component in this utility model; Figure 6 This is a schematic diagram of the supporting component in this utility model; In the attached diagram, the components represented by each number are as follows: 1-Horizontal base, 2-Fixed clamping seat, 201-First circular groove, 202-First radial slide groove, 203-Through groove, 3-Displacement assembly, 301-Carrier, 302-Slide groove, 303-Horizontal longitudinal push rod, 304-Carrier frame, 305-Horizontal longitudinal linear guide pair, 4-Moving clamping seat, 401-Second circular groove, 402-Second radial slide groove, 403-Groove, 5-Clamping assembly, 501-Rotary drive, 502-Annular turntable, 503-Clamping plate, 6-Bag, 7-Pumping pipe, 8-Liquid guiding slip ring, 9-Spray pipe, 10-Tilting assembly, 101-Tilting motor, 102-Synchronous belt, 103-Anti-slip plug sleeve, 11-Support assembly, 12-Welded steel pipe component. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-6 As shown, this embodiment is a welding steel pipe internal wall anti-corrosion spraying fixture, including a horizontal base 1, a fixed clamping seat 2, a displacement component 3, a movable clamping seat 4, a clamping component 5, a material box 6, a pumping pipe 7, a liquid guiding slip ring 8, a spray pipe 9, a flipping component 10, and a support component 11. The fixed clamping seat 2, the material box 6, and the support component 11 are installed on the horizontal base 1. The fixed clamping seat 2 and the movable clamping seat 4 are each equipped with a clamping component 5 for clamping the welded steel pipe component 12. The movable clamping seat 4 is driven by the displacement component to perform horizontal longitudinal and horizontal transverse displacement. The pumping pipe 7 of the material box 6 is connected to the spray pipe 9 through the liquid guiding slip ring 8 installed in the fixed clamping seat 2. The spray pipe 9 is driven by the flipping component installed in the movable clamping seat 4 to flip around the axis.

[0021] In this embodiment, the displacement component 3 includes a carrier 301, a slide groove 302 is provided on the upper side of the carrier 301, a horizontal longitudinal push rod 303 is installed in the slide groove 302, a frame 304 that is slidably limited in the slide groove 302 is installed in the movable end of the horizontal longitudinal push rod 303, and a horizontal longitudinal linear guide pair 305 for supporting the moving clamping seat 4 is installed in the frame 304.

[0022] In this embodiment, the clamping assembly 5 includes a rotary driver 501, an annular turntable 502 and a clamping plate 503. One side of the annular turntable 502 is connected to the movable ring of the rotary driver 501, and the other side of the annular turntable 502 is provided with a plurality of arc-shaped push grooves along the circumference. One end of the clamping plate 503 is provided with a slide head that is slidably restricted in the arc-shaped push grooves.

[0023] In this embodiment, a first circular groove 201 is provided on the inner side of the fixed clamping seat 2. Multiple first radial sliding grooves 202 are provided along the circumference at the inner end of the first circular groove 201 to facilitate the sliding of the clamping plate 503. A through groove 203 is provided at the center of the fixed clamping seat 2. The fixed ring part of the liquid guiding slip ring 8 is fixed to the inner wall of the through groove 203.

[0024] In this embodiment, a second circular groove 401 is provided on the inner side of the movable clamping seat 4, and a plurality of second radial sliding grooves 402 are provided on the inner end of the second circular groove 401 along the circumferential direction to facilitate the sliding of the clamping plate 503. A groove 403 is provided at the center of the movable clamping seat 4.

[0025] In this embodiment, the flipping assembly 10 includes a flipping motor 101, a synchronous belt 102, and an anti-slip plug-in sleeve 103. An anti-slip pulley is installed at the output end of the flipping motor 101. The anti-slip pulley is connected to the anti-slip plug-in sleeve 103 via the synchronous belt 102. The anti-slip plug-in sleeve 103 is located in the groove 403 and is provided with movable support by the movable clamping seat 4. A square plug-in groove is provided in the anti-slip plug-in sleeve 103. The spray pipe 9 has a square blind opening at one end near the anti-slip plug-in sleeve 103 to facilitate mating with the directional plug-in groove. A row of spray holes is provided along the direction of the spray pipe 9.

[0026] In this embodiment, the support assembly 11 includes a lifting push rod 111, and the movable end of the lifting push rod 111 is equipped with a support roller 113 via a roller seat 112; the support assembly 11 has two rows in total, and the support assembly 11 is used to provide auxiliary support for the welded steel pipe component 12.

[0027] In this embodiment, a controller is also included, which is connected to the displacement component 3, the clamping component 5, the suction pump built into the material box 6, and the support component 11.

[0028] The working principle of this embodiment is as follows: Preparation: Place the welded steel pipe component 12 to be sprayed on the support assembly 11. The lifting push rod 111 of the support assembly 11 drives the support roller 113 to rise and fall through the roller seat 112 to adjust to a suitable height, providing stable auxiliary support for the welded steel pipe component 12. The distance between the two rows of support assemblies 11 is equal to the radius of the welded steel pipe component 12, ensuring that the steel pipe is placed stably.

[0029] Clamping the steel pipe: The controller controls the displacement component 3 to work. The horizontal longitudinal push rod 303 on the carrier 301 pushes the carrier frame 304 to slide in the slide groove 302. The horizontal longitudinal linear guide pair 305 in the carrier frame 304 carries the moving clamping seat 4 to perform horizontal longitudinal and horizontal lateral displacement, so that the moving clamping seat 4 is close to one end of the welded steel pipe component 12. The clamping components 5 of the fixed clamping seat 2 and the moving clamping seat 4 start to work. The rotary driver 501 drives the annular turntable 502 to rotate. The arc-shaped push groove on the annular turntable 502 pushes the slide head at one end of the clamping plate 503, so that the clamping plate 503 slides along the first radial slide groove 202 of the fixed clamping seat 2 and the second radial slide groove 402 of the moving clamping seat 4, thereby firmly clamping the welded steel pipe component 12 between the first circular groove 201 of the fixed clamping seat 2 and the second circular groove 401 of the moving clamping seat 4.

[0030] Connecting the spray pipe: The suction pump built into the material box 6 delivers the anti-corrosion coating through the pumping pipe 7. The pumping pipe 7 is connected to the spray pipe 9 via the liquid guiding slip ring 8 installed on the inner wall of the groove 203 of the fixed clamping seat 2. The spray pipe 9 has a square blind opening at one end near the anti-slip plug sleeve 103, which cooperates with the square plug slot opened in the anti-slip plug sleeve 103 to realize the connection between the spray pipe 9 and the flipping assembly 10. The groove 403 of the movable clamping seat 4 provides movable support for the anti-slip plug sleeve 103.

[0031] Spraying operation: The controller controls the operation of the flipping motor 101 of the flipping assembly 10. The anti-slip pulley at the output end of the flipping motor 101 drives the anti-slip plug sleeve 103 to rotate via the synchronous belt 102, thereby causing the spray pipe 9 to flip around the axis. At the same time, the suction pump built into the material box 6 continuously delivers the anti-corrosion coating through the pumping pipe 7 and the liquid guiding slip ring 8 to the spray pipe 9. The coating is evenly sprayed from a row of spray holes opened along the direction of the spray pipe 9 to perform anti-corrosion spraying on the inner wall of the welded steel pipe component 12.

[0032] Complete the spraying: After the spraying is completed, the controller stops the operation of each component, the clamping component 5 releases the clamp on the welded steel pipe component 12, the displacement component 3 can adjust the position of the movable clamping seat 4 to offset the position of the welded steel pipe component 12, and the sprayed steel pipe is removed to complete the entire inner wall anti-corrosion spraying process.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tooling for internal anti-corrosion spraying of welded steel pipes, characterized in that, The device includes a horizontal base, a fixed clamping seat, a displacement assembly, a movable clamping seat, a clamping assembly, a material box, a pumping pipe, a liquid guiding slip ring, a spray pipe, a tilting assembly, and a support assembly. The fixed clamping seat, material box, and support assembly are mounted on the horizontal base. The fixed clamping seat and the movable clamping seat are each equipped with a clamping assembly for clamping welded steel pipe components. The movable clamping seat is driven by the displacement assembly to perform horizontal longitudinal and horizontal lateral displacement. The pumping pipe of the material box is connected to the spray pipe via a liquid guiding slip ring installed in the fixed clamping seat. The spray pipe is driven by the tilting assembly installed in the movable clamping seat to tilt around an axis.

2. The anti-corrosion spraying fixture for the inner wall of welded steel pipe processing according to claim 1, characterized in that, The displacement assembly includes a carrier, the upper side of which has a groove. A horizontal longitudinal push rod is installed in the groove. A frame that slides and is restricted in the groove is installed in the movable end of the horizontal longitudinal push rod. A horizontal longitudinal linear guide pair for supporting the moving clamp is installed in the frame.

3. The anti-corrosion spraying fixture for the inner wall of welded steel pipe processing according to claim 2, characterized in that, The clamping assembly includes a rotary driver, an annular turntable, and a clamping plate. One side of the annular turntable is connected to the movable ring of the rotary driver, and the other side of the annular turntable is provided with a plurality of arc-shaped push grooves along the circumference. One end of the clamping plate is provided with a slide head that is slidably restricted in the arc-shaped push grooves.

4. The anti-corrosion spraying fixture for the inner wall of welded steel pipe processing according to claim 3, characterized in that, The inner side of the fixed clamping seat is provided with a first circular groove, and the inner end of the first circular groove is provided with a plurality of first radial sliding grooves along the circumference to facilitate the sliding and limiting of the clamping plate. A through groove is provided at the center of the fixed clamping seat, and the fixed ring part of the liquid guiding slip ring is fixed to the inner wall of the through groove.

5. The anti-corrosion spraying fixture for the inner wall of welded steel pipe processing according to claim 4, characterized in that, The inner side of the movable clamping seat is provided with a second circular groove, and the inner end of the second circular groove is provided with a plurality of second radial sliding grooves along the circumference to facilitate the sliding and limiting of the clamping plate. A groove is provided at the center of the movable clamping seat.

6. The anti-corrosion spraying fixture for the inner wall of welded steel pipe processing according to claim 5, characterized in that, The flipping assembly includes a flipping motor, a synchronous belt, and an anti-slip plug sleeve. The output end of the flipping motor is equipped with an anti-slip pulley, and the anti-slip pulley is connected to the anti-slip plug sleeve via the synchronous belt. The anti-slip plug sleeve is located in a groove and is provided with movable support by a movable clamping seat. A square plug slot is provided in the anti-slip plug sleeve. The end of the spray pipe near the anti-slip plug sleeve is provided with a square blind opening to facilitate cooperation with the directional plug slot.

7. The anti-corrosion spraying fixture for the inner wall of welded steel pipe processing according to claim 6, characterized in that, The support assembly includes a lifting push rod, the movable end of which is fitted with a support roller via a roller seat; the support assembly has two rows, and the distance between the two rows is equal to the radius of the welded steel pipe component.

8. The anti-corrosion spraying fixture for the inner wall of welded steel pipe processing according to claim 7, characterized in that, It also includes a controller, which is connected to the displacement component, the clamping component, the suction pump built into the hopper, and the support component.

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