Bionic hydrophobic processing device for outer wall of stainless steel pipe

By employing slow milling and a coaxial positioning mechanism, the stability and precision issues in the processing of biomimetic drainage grooves on the outer wall of stainless steel pipes were resolved, achieving efficient and precise biomimetic drainage groove processing and improving fluid dynamics performance and protective effect.

CN121732869APending Publication Date: 2026-03-27SHANDONG TAIHE PIPE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-26
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing stainless steel pipe outer wall processing equipment is prone to work hardening, vibration marks, edge tearing and poor surface finish when processing biomimetic hydrophobic grooves, resulting in increased fluid resistance and impaired protective function.

Method used

By employing a slow-speed milling mechanism and a coaxial positioning mechanism, combined with damping oil and lever principles, the tool is ensured to contact the pipe wall smoothly. Stable and precise biomimetic drainage groove machining is achieved through a synchronous linkage assembly and a depth adjustment mechanism.

Benefits of technology

We can produce biomimetic hydrophobic grooves with smooth sidewalls and clear edges to improve hydrodynamic performance and biomimetic surface protection, suppress cutting vibration, and adapt to machining needs at different depths.

✦ Generated by Eureka AI based on patent content.

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Abstract

A bionic hydrophobic machining device for the outer wall of a stainless steel pipe belongs to the technical field of milling and comprises a movable machining table, two supports are fixedly connected to the top of the movable machining table, supporting rods are fixedly connected to the side walls of the two supports, and a machining disc is jointly and fixedly connected to the outer walls of the two supporting rods. Two mounting grooves are formed in the machining disc, slow-speed milling mechanisms are arranged on the inner walls of the two mounting grooves, a coaxial positioning mechanism is arranged on the side wall of the machining disc, sliding of the filtering disc is limited through damping oil in a fixing cylinder, and it is ensured that a cutter moves downwards linearly and makes pressure contact with the outer wall of a stainless steel pipe to mill the outer wall of the stainless steel pipe; instantaneous impact generated by a traditional direct propelling mode is avoided, the milling process is more stable through combination of stable cut-in and constant damping buffering, and therefore the annular bionic drainage groove with the smoother side wall and the clearer edge is machined, and the fluid mechanical property of the bionic surface is effectively improved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of milling machining, in particular to a bionic hydrophobic processing device for the outer wall of a stainless steel pipe. BACKGROUND

[0002] With the deepening of marine resource development and the rapid growth of submarine pipeline laying, stainless steel pipelines are widely used in the field of marine oil and gas transportation due to their excellent corrosion resistance. However, the outer wall of the stainless steel pipeline still needs to withstand seawater corrosion, ocean current impact and biological attachment and other multiple challenges in the complex marine environment. These factors not only threaten the structural safety of the pipeline, but also significantly increase the surface roughness, which significantly increases the fluid friction resistance, resulting in increased energy consumption and reduced efficiency of the pipeline, and shortens the service life of the pipeline.

[0003] To reduce the fluid resistance of the pipeline, bionic drag reduction technology has become an important research direction. By processing precise bionic hydrophobic groove structures on the outer wall of the stainless steel pipeline, the wall flow field can be effectively improved, the drag reduction effect can be achieved, and the adhesion of the outer wall protective coating can be enhanced. Therefore, there is an urgent engineering need to develop high-quality bionic groove processing equipment suitable for the outer wall of the stainless steel pipeline.

[0004] The existing groove processing device for the outer wall of the pipeline generally adopts a rigid direct driving mode to control the radial movement of the cutter to the processing state. When this traditional method is applied to stainless steel materials, the cutter will contact the pipe wall in an instantaneous rigid impact mode, which can easily cause serious work hardening on the surface of the stainless steel, damage the original corrosion resistance of the material, and accelerate the wear or deviation of the cutter, resulting in vibration marks, micro-tears or burrs on the side wall of the processed bionic hydrophobic groove, poor surface finish, and thus directly damaging the geometric accuracy and surface integrity of the bionic groove, making it difficult to achieve the expected hydrophobic drag reduction and long-term protection function. SUMMARY

[0005] The purpose of the present application is to solve the problems raised in the background art, and a bionic hydrophobic processing device for the outer wall of a stainless steel pipe is proposed.

[0006] In order to achieve the above purpose, the application adopts the following technical scheme: a bionic hydrophobic processing device for the outer wall of a stainless steel pipe, comprising a movable processing table, the top of the movable processing table is fixedly connected with two supports, the side walls of the two supports are fixedly connected with supporting rods, and the outer walls of the two supporting rods are fixedly connected with a processing disc; The inner part of the processing disc is provided with two installation grooves, the inner walls of the two installation grooves are provided with a slow milling mechanism, the slow milling mechanism comprises a first fixed frame, the inner wall of the first fixed frame is driving connected with an installation frame and a fixed block through a synchronous connecting rod assembly, the inner part of the installation frame is provided with a cutter, the inner wall of the fixed block is fixedly installed with a counterweight, when the processing disc rotates, the counterweight is driven to displace the cutter through the synchronous connecting rod assembly by centrifugal force; The side wall of the first fixed frame is provided with a first transverse groove, the synchronous connecting rod assembly comprises a horizontal rod; The side wall of the processing disc is provided with a coaxial positioning mechanism, the coaxial positioning mechanism comprises two fixed shafts, the outer walls of the two fixed shafts are rotatably connected with rotating rods, the outer wall of the horizontal rod is extruded and slid on the outer wall of the rotating rod, and the end of the rotating rod away from the fixed shaft is rotatably installed with a roller.

[0007] Further, the synchronous connecting rod assembly further comprises a first hinged rod and a second hinged rod rotatably connected to the outer wall of the horizontal rod, and the outer wall of the horizontal rod is rotatably connected with the first hinged rod and the second hinged rod, the ends of the two second hinged rods away from the horizontal rod are rotatably connected to the top of the installation frame, and the ends of the two first hinged rods away from the horizontal rod are rotatably connected to the bottom of the fixed block.

[0008] Further, the slow milling mechanism further comprises a fixed cylinder fixedly connected to the inner wall of the installation groove, and the inner wall of the fixed cylinder is slidably connected with a filter disc, the side wall of the filter disc is fixedly connected with a first spring, and the end of the first spring away from the filter disc is fixedly connected to the inner wall of the fixed cylinder, the inside of the fixed cylinder is slidably connected with a guide rod, and the end of the guide rod inside the fixed cylinder is fixedly connected to the side wall of the filter disc, the end of the guide rod away from the filter disc is fixedly connected to the top of the fixed block, and the side wall of the installation frame is fixedly connected with a limiting block; The outer wall of the first fixed frame is fixedly connected to the inner wall of the installation groove, the inner wall of the installation groove is provided with a sliding groove, the outer wall of the horizontal rod is slidably connected in the inner wall of the sliding groove, the outer wall of the second hinged rod is slidably connected in the inner part of the first fixed frame, the inner wall of the installation groove is provided with a limiting groove, and the outer wall of the limiting block is slidably connected in the inner wall of the limiting groove.

[0009] Further, the end outer walls of the two rotating rods are fixedly connected with connecting plates, a second spring is fixedly connected between the two connecting plates, the side wall of the processing disc is fixedly connected with a second fixed frame, the inside of the second fixed frame is provided with a through groove, and the inner wall of the through groove is provided with a second transverse groove.

[0010] Further, the side walls of the two rotating rods are slidably connected to the inner walls of the through grooves, and the outer wall of the horizontal rod is slidably connected to the inner wall of the second horizontal groove.

[0011] Further, the inside of the mounting frame is provided with a depth adjusting mechanism. The depth adjusting mechanism comprises a fixed plate, two threaded rods are rotatably connected to the inside of the fixed plate, the ends of the two threaded rods away from the fixed plate are fixedly connected with knobs, and the outer walls of the two threaded rods are rotatably connected with an activity plate through threads.

[0012] Further, the outer wall of the fixed plate is fixedly connected to the inner wall of the mounting frame, and the side wall of the activity plate is fixedly connected to the top of the cutter.

[0013] Further, the side wall of the machining disc is provided with a guide groove, the outer wall of the supporting rod is slidably connected to the inner wall of the guide groove, the outer wall of the machining disc is provided with a tooth groove, the side wall of the support is rotatably connected with a driven gear, and the teeth of the driven gear are matched and engaged with the inner wall of the tooth groove.

[0014] Further, the top of the movable machining table is fixedly provided with a servo motor, the output shaft of the servo motor is fixedly connected with a driving gear, and the teeth of the driving gear are matched and engaged with the inner wall of the tooth groove.

[0015] Compared with the prior art, the above-mentioned scheme has the following beneficial effects: 1. The damping oil in the fixed cylinder limits the sliding of the filter disc, ensures that the cutter realizes linear and stable downward movement, and thus the cutter can contact and mill the outer wall of the stainless steel pipe with a pressure starting from zero and increasing uniformly, avoids the instantaneous impact generated by the traditional direct pushing mode, combines stable cutting with constant damping buffer, makes the milling process more stable, and thus processes annular biomimetic hydrophobic grooves with smoother side walls and clearer edges, and effectively improves the fluid mechanics performance of the biomimetic surface.

[0016] 2. The rotating rod overcomes the elastic force of the second spring through the lever principle, the multiple groups of rollers synchronously contact the outer wall surface of the stainless steel pipe, realize multi-point self-adaptive clamping while rolling along the surface, ensure that the axis of the cutter and the pipe shaft always remain consistent when the machining disc drives the cutter to rotate, significantly inhibit cutting vibration, and guarantee the coaxiality precision of all biomimetic hydrophobic grooves through automatic positioning and clamping in the machining process.

[0017] 3. The device can accurately adjust the extension length of the cutter by rotating the knob to drive the movable plate to move linearly, and the self-locking property of the threaded transmission ensures the stability and reliability of the machining depth setting, so that the device can quickly adapt to the machining requirements of different depth biomimetic grooves without replacing parts, significantly enhancing the process flexibility and application range of the device, and realizing efficient and accurate machining of micro-shallow texture to deep groove structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The overall structure diagram of the present application is shown in the figure. Figure 2 The structure transmission diagram of the servo motor and machining disc of the present application is shown in the figure. Figure 3 The internal structure diagram of the machining disc of the present application is shown in the figure. Figure 4 The structure connection diagram of the cutter and counterweight of the present application is shown in the figure. Figure 5 The internal structure diagram of the fixed cylinder of the present application is shown in the figure. Figure 6 The internal structure diagram of the present application is shown in the figure. Figure 3 The enlarged view of A of the present application is shown in the figure. Figure 7 The internal structure diagram of the mounting bracket of the present application is shown in the figure.

[0019] The marks in the figure are: 1, moving machining table; 2, support; 3, support rod; 4, machining disc; 5, mounting groove; 6, slow milling mechanism; 7, coaxial positioning mechanism; 8, depth adjustment mechanism; 9, sliding groove; 10, limiting groove; 11, guide groove; 12, tooth groove; 13, driven gear; 14, servo motor; 15, driving gear; 601, first fixed bracket; 602, first transverse groove; 603, crossbar; 604, first articulated rod; 605, second articulated rod; 606, mounting bracket; 607, cutter; 608, fixed block; 609, counterweight; 610, fixed cylinder; 611, first spring; 612, guide rod; 613, filter disc; 614, limiting block; 701, fixed shaft; 702, rotating rod; 703, connecting plate; 704, second spring; 705, second fixed bracket; 706, through groove; 707, roller; 708, second transverse groove; 801, fixed plate; 802, threaded rod; 803, knob; 804, movable plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "top surface", "bottom surface" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only used to distinguish entities or operations from each other, and do not require or imply any actual relationship, order or relative importance between them.

[0022] Embodiment one, please refer to Figures 1-5 A kind of bionic hydrophobic processing device of outer wall of stainless steel pipe, including mobile processing table 1, the top of mobile processing table 1 is fixedly connected with two supports 2, the side wall of two supports 2 is fixedly connected with support rod 3, the outer wall of two support rods 3 is commonly fixedly connected with processing disc 4, the side wall of processing disc 4 is equipped with guide slot 11, the outer wall of support rod 3 is slidably connected in the inner wall of guide slot 11, the outer wall of processing disc 4 is equipped with gear slot 12, the side wall of support 2 is rotatably connected with driven gear 13, the teeth of driven gear 13 are matched with the inner wall of gear slot 12 and are engaged, the top of mobile processing table 1 is fixedly installed with servo motor 14, and the output shaft outer wall of servo motor 14 is fixedly connected with driving gear 15, the teeth of driving gear 15 are matched with the inner wall of gear slot 12 and are engaged.

[0023] In the embodiment, when the bionic hydrophobic treatment is carried out on the stainless steel pipe, first, the stainless steel pipe needs to be lifted to a suitable height by the auxiliary device, the pipe center axis of the stainless steel pipe is coincided with the center axis of the processing disc 4, then the power assembly built-in in the mobile processing table 1 is controlled to drive the mobile processing table 1 to move, then the mobile processing table 1 drives the whole processing device to move along the pipe axis direction, in this process, the inner wall of the processing disc 4 will correspond to the outer wall of the stainless steel pipe, then when the first position to be processed of the outer wall of the stainless steel pipe corresponds to the inner wall of the processing disc 4, then stop controlling the drive of the mobile processing table 1, at this time, the mobile processing table 1 is ready to drive the servo motor 14, the output shaft of the servo motor 14 drives the driving gear 15 to rotate synchronously, the driving gear 15 and the gear slot 12 are engaged to drive the processing disc 4 to rotate, in the process, the outer wall of the support rod 3 will slide along the inner wall of the guide slot 11, at the same time, through the engagement state of the driven gear 13 and the gear slot 12, it is ensured that the position of the processing disc 4 will not deviate and keep rotating.

[0024] In addition, the inside of the processing disc 4 is provided with two installation grooves 5, the inner wall of the two installation grooves 5 is provided with a speed reduction milling mechanism 6, The retardation milling mechanism 6 comprises a first fixed frame 601, the inner wall of the first fixed frame 601 is connected with a mounting frame 606 and a fixed block 608 through a synchronous connecting rod assembly, the inside of the mounting frame 606 is provided with a cutter 607, the inner wall of the fixed block 608 is fixedly provided with a counterweight 609, when the machining disc 4 rotates, the counterweight 609 is driven by the centrifugal force to displace the cutter 607 through the synchronous connecting rod assembly, the side wall of the first fixed frame 601 is provided with a first transverse slot 602, the synchronous connecting rod assembly further comprises a cross bar 603 which is slidingly connected to the inner wall of the first transverse slot 602, and the outer wall of the cross bar 603 is rotatably connected with a first hinged rod 604 and a second hinged rod 605, the two second hinged rods 605 are rotatably connected at the top of the mounting frame 606 away from the cross bar 603, and the two first hinged rods 604 are rotatably connected at the bottom of the fixed block 608 away from the cross bar 603.

[0025] Specifically, in the process of rotating the machining disc 4, the two groups of retardation milling mechanisms 6 inside the machining disc 4 are driven to rotate synchronously, the outer wall of the first fixed frame 601 is fixedly connected to the inner wall of the mounting groove 5, then the counterweight 609 is subjected to the centrifugal force generated by rotation, then the counterweight 609 is displaced outwardly on the inner wall of the mounting groove 5, at the same time, the counterweight 609 drives the connecting end of the two first hinged rods 604 to move simultaneously through the fixed block 608, then the other end of the two first hinged rods 604 is also displaced, at the same time, driving the two cross bars 603 to slide along the inner wall of the first transverse slot 602 in opposite directions, the inner wall of the mounting groove 5 is provided with a sliding groove 9, the outer wall of the cross bar 603 is slidingly connected to the inner wall of the sliding groove 9, and the outer wall of the second hinged rod 605 is slidingly connected to the inside of the first fixed frame 601, when the cross bar 603 slides along the inner wall of the sliding groove 9, it drives the one end of the second hinged rod 605 rotatably connected to the outer wall to move synchronously, at this time, the two ends of the second hinged rod 605 are close to each other, so that the other end of the second hinged rod 605 drives the mounting frame 606 to move downward, thereby driving the cutter 607 installed in the mounting frame 606 to move downward synchronously, the inner wall of the mounting groove 5 is provided with a limiting groove 10, the outer wall of the limiting block 614 is slidingly connected to the inner wall of the limiting groove 10, at the same time, the downward movement of the mounting frame 606 also drives the limiting block 614 on the side wall of the mounting frame 606 to slide along the inner wall of the limiting groove 10, through the limiting of the limiting block 614 by the limiting groove 10, it can ensure that the cutter 607 does not deviate during the downward movement, then the cutter 607 gradually contacts the outer wall of the stainless steel pipe during the downward movement, at the same time, the rotation of the cutter 607 driven by the machining disc 4 realizes the milling of the annular groove with biomimetic hydrophobicity on the outer wall of the stainless steel pipe.

[0026] Further, the speed-reducing milling mechanism 6 further comprises a fixed cylinder 610 fixedly connected to the inner wall of the mounting groove 5, and the inner wall of the fixed cylinder 610 is slidingly connected with a filter disc 613, the side wall of the filter disc 613 is fixedly connected with a first spring 611, and the end of the first spring 611 away from the filter disc 613 is fixedly connected to the inner wall of the fixed cylinder 610, a guide rod 612 is slidingly connected through the inside of the fixed cylinder 610, and the end of the guide rod 612 inside the fixed cylinder 610 is fixedly connected to the side wall of the filter disc 613, the end of the guide rod 612 away from the filter disc 613 is fixedly connected to the top of the fixed block 608, and the side wall of the mounting frame 606 is fixedly connected with a limiting block 614.

[0027] Specifically, in the process that the counterweight 609 is displaced outward by centrifugal force, the counterweight 609 will drive the guide rod 612 to move upward synchronously through the fixed block 608, then the guide rod 612 will drive the filter disc 613 to slide along the inner wall of the fixed cylinder 610, then the first spring 611 will be compressed by the extrusion of the filter disc 613, and the force generated by the compression of the first spring 611 can drive the subsequent reset movement of the filter disc 613, in the process of movement of the filter disc 613, the sliding of the filter disc 613 is limited by the damping oil built in the fixed cylinder 610, which can ensure the sliding process of the filter disc 613, so that the cutter 607 also moves downward linearly and stably synchronously, so that the cutter 607 linearly increases the pressure contact and mills the outer wall of the stainless steel pipe from zero, eliminating the instantaneous impact caused by direct pushing in the traditional way, and stably cutting and constantly damping and buffering milling, making the milling process more stable, and obtaining a more smooth side wall and a more clear edge of the annular biomimetic hydrophobic groove, thereby improving the fluid mechanics performance of the biomimetic surface.

[0028] Embodiment two, please refer to Figures 1-6 On the basis of embodiment one, in this embodiment, the side wall of the processing disc 4 is provided with a coaxial positioning mechanism 7, the coaxial positioning mechanism 7 comprises two fixed shafts 701, the outer wall of each of the two fixed shafts 701 is rotatably connected with a rotating rod 702, the outer wall of the cross rod 603 is extruded and slidingly connected to the outer wall of the rotating rod 702, the end of the rotating rod 702 away from the fixed shaft 701 is rotatably installed with a roller 707, the end outer wall of each of the two rotating rods 702 is fixedly connected with a connecting plate 703, the two connecting plates 703 are jointly fixedly connected with a second spring 704, the side wall of the processing disc 4 is fixedly connected with a second fixed frame 705, and the inside of the second fixed frame 705 is provided with a through groove 706, the inner wall of the through groove 706 is provided with a second transverse groove 708, the side wall of each of the two rotating rods 702 is slidingly connected to the inner wall of the through groove 706, and the outer wall of the cross rod 603 is slidingly connected to the inner wall of the second transverse groove 708.

[0029] In the embodiment, in the process of milling the bionic hydrophobic groove on the outer wall of the stainless steel pipe, while the cross rod 603 slides along the inner wall of the first transverse groove 602 and the limiting groove 10, the two ends of the cross rod 603 extending into the inside of the machining disc 4 also slide along the inner wall of the second transverse groove 708, and in the process, the outer wall of the cross rod 603 contacts and extrudes the outer wall of the rotating rod 702, and the extrusion makes the rotating rod 702 slide along the inner wall of the through groove 706, and since the end of the rotating rod 702 is rotationally connected to the outer wall of the fixed shaft 701 and rotates, the other end of the rotating rod 702 drives the corresponding roller 707 to displace, and in the process of rotation of the two rotating rods 702, the two connecting plates 703 fixed at the outer ends of the rotating rods 702 approach each other, so that the second spring 704 is compressed, and the compression force of the second spring 704 can drive the subsequent reset movement of the rotating rod 702. Since the position of the second spring 704 is close to the fixed shaft 701, and the extrusion position of the cross rod 603 is away from the fixed shaft 701, the extrusion force of the cross rod 603 on the rotating rod 702 easily overcomes the elastic force of the second spring 704 through the lever principle. After the cross rod 603 drives the rotating rod 702 to rotate to a specified angle, the other end of the rotating rod 702 contacts the stainless steel pipe, and then the multiple rollers 707 simultaneously extrude the outer wall of the stainless steel pipe and rotate along the surface of the stainless steel pipe to realize multi-point clamping, which can ensure that the rotating axis of the machining disc 4 driving the cutter 607 is consistent with the axis of the stainless steel pipe during milling, and vibration during cutting is inhibited. The automatic positioning and clamping during milling ensures the consistency of the coaxiality of all bionic hydrophobic grooves.

[0030] After the bionic hydrophobic groove is processed, the control servo motor 14 stops outputting, then the counterweight 609 is no longer subjected to the centrifugal force generated by the rotation of the machining disc 4, and the elastic force generated by the compression of the first spring 611 and the second spring 704 drives the slow milling mechanism 6 and the coaxial positioning mechanism 7 to reset to the initial position, and then the movable machining table 1 can be controlled to move to the next position to be processed.

[0031] Embodiment three, please refer to Figures 1-6 On the basis of embodiment one, the inside of the mounting frame 606 is provided with a depth adjusting mechanism 8.

[0032] The depth adjusting mechanism 8 comprises a fixed plate 801, two threaded rods 802 are rotationally connected in the inside of the fixed plate 801, one ends of the two threaded rods 802 away from the fixed plate 801 are fixedly connected with knobs 803, outer walls of the two threaded rods 802 are commonly rotationally connected with an activity plate 804 through threads, the outer wall of the fixed plate 801 is fixedly connected to the inner wall of the mounting frame 606, and the side wall of the activity plate 804 is fixedly connected to the top of the cutter 607.

[0033] In the embodiment, before the biomimetic hydrophobic processing is carried out on the stainless steel pipe, the cutter 607 can be first pulled out through the knob 803 to facilitate adjustment, then the knob 803 is rotated to drive the threaded rod 802 to rotate synchronously, since the movable plate 804 is connected to the outer wall of the threaded rod 802 through threaded rotation, the cutter 607 is displaced by the movable plate 804 during the rotation of the threaded rod 802, the length of the cutter 607 extending out of the mounting frame 606 can be adjusted, thereby directly corresponding to the biomimetic hydrophobic grooves with different depths, so that various biomimetic structures from micro-texture to deep grooves can be conveniently adjusted, and the application range of the device is expanded, and the threaded self-locking characteristic facilitates adjustment at any time during the processing.

[0034] It should be noted that each device in the present application is a common market device, and can be selected according to the needs during specific use, and the circuit connection relationship of each device is a simple series and parallel connection circuit, and there is no innovation point in the circuit connection part, and the person skilled in the art can easily realize it, which belongs to the prior art, and will not be described in detail.

[0035] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and therefore the protection scope of the present application should be subject to the scope defined by the claims.

Claims

1. A biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe, comprising a movable processing table (1), characterized in that: The top of the mobile processing table (1) is fixedly connected to two brackets (2), and the side walls of the two brackets (2) are fixedly connected to support rods (3). The outer walls of the two support rods (3) are fixedly connected to a processing plate (4). The machining disk (4) has two mounting slots (5) inside. The inner walls of the two mounting slots (5) are provided with a slow milling mechanism (6). The slow milling mechanism (6) includes a first fixed frame (601). The inner wall of the first fixed frame (601) is connected to a mounting frame (606) and a fixed block (608) through a synchronous linkage assembly. The mounting frame (606) is provided with a cutting tool (607) inside. The inner wall of the fixed block (608) is fixedly installed with a counterweight (609). When the machining disk (4) rotates, the counterweight (609) is subjected to centrifugal force and drives the cutting tool (607) to move through the synchronous linkage assembly. The first fixing frame (601) has a first transverse groove (602) through its side wall, and the synchronous linkage assembly includes a crossbar (603). The processing disk (4) is provided with a coaxial positioning mechanism (7) on its side wall. The coaxial positioning mechanism (7) includes two fixed shafts (701). The outer walls of the two fixed shafts (701) are rotatably connected to rotating rods (702). The outer wall of the crossbar (603) is pressed and slid on the outer wall of the rotating rod (702). A roller (707) is rotatably installed at the end of the rotating rod (702) away from the fixed shafts (701).

2. The biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe according to claim 1, characterized in that, The synchronous linkage assembly further includes a first hinge rod (604) and a second hinge rod (605) rotatably connected to the outer wall of the crossbar (603). The ends of the two second hinge rods (605) away from the crossbar (603) are rotatably connected to the top of the mounting bracket (606), and the ends of the two first hinge rods (604) away from the crossbar (603) are rotatably connected to the bottom of the fixing block (608).

3. The biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe according to claim 2, characterized in that, The slow milling mechanism (6) further includes a fixed cylinder (610) fixedly connected to the inner wall of the mounting groove (5), and a filter disc (613) is slidably connected to the inner wall of the fixed cylinder (610). A first spring (611) is fixedly connected to the side wall of the filter disc (613), and one end of the first spring (611) away from the filter disc (613) is fixedly connected to the inner wall of the fixed cylinder (610). A guide rod (612) is slidably connected through the inside of the fixed cylinder (610), and one end of the guide rod (612) located inside the fixed cylinder (610) is fixedly connected to the side wall of the filter disc (613). One end of the guide rod (612) away from the filter disc (613) is fixedly connected to the top of the fixed block (608). A limit block (614) is fixedly connected to the side wall of the mounting bracket (606). The outer wall of the first fixing frame (601) is fixedly connected to the inner wall of the mounting groove (5). The inner wall of the mounting groove (5) is provided with a sliding groove (9). The outer wall of the crossbar (603) is slidably connected to the inner wall of the sliding groove (9). The outer wall of the second hinge rod (605) is slidably connected to the inside of the first fixing frame (601). The inner wall of the mounting groove (5) is provided with a limiting groove (10). The outer wall of the limiting block (614) is slidably connected to the inner wall of the limiting groove (10).

4. The biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe according to claim 3, characterized in that, The outer walls of the ends of the two rotating rods (702) are fixedly connected with connecting plates (703), and the two connecting plates (703) are fixedly connected with a second spring (704). The side wall of the processing plate (4) is fixedly connected with a second fixing frame (705), and the interior of the second fixing frame (705) is provided with a through groove (706), and the inner wall of the through groove (706) is provided with a second transverse groove (708).

5. The biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe according to claim 4, characterized in that, The sidewalls of the two rotating rods (702) are slidably connected to the inner wall of the through groove (706), and the outer wall of the crossbar (603) is slidably connected to the inner wall of the second transverse groove (708).

6. A biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe according to any one of claims 1-5, characterized in that, The mounting bracket (606) is provided with a depth adjustment mechanism (8) inside; The depth adjustment mechanism (8) includes a fixed plate (801), and two threaded rods (802) are rotatably connected through the interior of the fixed plate (801). A knob (803) is fixedly connected to one end of each of the two threaded rods (802) away from the fixed plate (801). A movable plate (804) is rotatably connected to the outer wall of the two threaded rods (802) through threads.

7. The biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe according to claim 6, characterized in that, The outer wall of the fixed plate (801) is fixedly connected to the inner wall of the mounting bracket (606), and the side wall of the movable plate (804) is fixedly connected to the top of the cutter (607).

8. The biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe according to claim 1, characterized in that, The processing disk (4) has a guide groove (11) on its side wall. The outer wall of the support rod (3) is slidably connected to the inner wall of the guide groove (11). The outer wall of the processing disk (4) has a tooth groove (12). The side wall of the bracket (2) is rotatably connected to a driven gear (13). The teeth of the driven gear (13) mesh with the inner wall of the tooth groove (12).

9. The biomimetic hydrophobic processing device for the outer wall of a stainless steel pipe according to claim 1, characterized in that, A servo motor (14) is fixedly installed on the top of the mobile processing table (1), and an active gear (15) is fixedly connected to the outer wall of the output shaft of the servo motor (14). The teeth of the active gear (15) mesh with the inner wall of the tooth groove (12).