Flexible polishing and grinding device for inner wall of valve element of high-pressure oil pipe joint

Abstract

The utility model relates to a flexible polishing and grinding device for the inner wall of a high-pressure oil pipe joint valve element. The flexible polishing and grinding device comprises a rack, a conveying unit, an air nozzle and a cleaning unit. The conveying unit comprises a moving mechanism and a positioning seat, and the positioning seat is provided with a positioning clamping groove matched with the vertical high-pressure oil pipe connector. The air nozzle faces the positioning clamping groove to purge impurities on the surface of the high-pressure oil pipe joint; the cleaning unit is used for cleaning high-pressure oil pipe joint inner holes; the air tap and the cleaning unit are sequentially arranged along the moving path. Station switching of the device is achieved through the rotating disc, and polishing and grinding inner holes are accurately cleaned in combination with the flexible scraping plate. The problems of low manual cleaning efficiency and many potential safety hazards are solved, and the device is suitable for industrial automation scenes.

Description

Technical Field

[0001] This utility model relates to the field of automated cleaning technology, and more specifically, to a flexible polishing device for the inner wall of a high-pressure oil pipe joint valve core. Background Technology

[0002] As a key component in industrial pneumatic systems, the cleanliness of high-pressure oil pipe fittings directly affects the equipment's sealing performance, fluid transmission efficiency, and operational safety. After machining processes, metal shavings, cutting fluid residues, and other contaminants often remain on the outer and inner walls of high-pressure oil pipe fittings.

[0003] Currently, the industry commonly uses manual handheld air guns for surface cleaning, requiring operators to blow high-pressure gas onto each high-pressure oil pipe joint point by point. This traditional method has several technical bottlenecks: First, manual operation is limited by hand stability and the angle of gas jet, making it difficult to accurately control the airflow direction, thus hindering the effective removal of debris; second, cleaning efficiency is highly dependent on the operator's skill level, and the processing time is long, making it difficult to meet the needs of large-scale production; third, the strong airflow generated by the air gun can easily cause debris to fly, which may not only injure the operator's eyes and other parts of the body, but also cause environmental pollution in the workshop.

[0004] With the increasing demands for intelligent industrial production, there is an urgent need to develop an efficient and automated surface cleaning technology for high-pressure oil pipe joints. Utility Model Content

[0005] The technical problem to be solved by this application is that manual cleaning is inefficient, ineffective, and poses many safety hazards. In order to overcome the above-mentioned defects of the prior art, this application provides a flexible polishing device for the inner wall of the valve core of a high-pressure oil pipe joint.

[0006] This application provides a flexible polishing device for the inner wall of a high-pressure oil pipe connector valve core, comprising: a frame for providing support; a conveying unit including a moving mechanism and a positioning seat, wherein the moving mechanism is mounted on the frame, the positioning seat is mounted on the moving output end of the moving mechanism, and the positioning seat is provided with a positioning groove adapted to a vertical high-pressure oil pipe connector; an air nozzle mounted on the frame, wherein the air outlet of the air nozzle faces the positioning groove of the positioning seat, and the air inlet of the air nozzle is connected to an external air source; and a cleaning unit mounted on the frame for cleaning the inner hole of the high-pressure oil pipe connector; wherein the air nozzle and the cleaning unit are arranged sequentially along the moving path of the moving mechanism.

[0007] Compared with existing technologies, the flexible polishing device for the inner wall of a high-pressure oil pipe joint valve core disclosed in this application has the following advantages: the frame provides stable support, ensuring the stability of the installation and operation of each component; the moving mechanism of the conveying unit can drive the positioning seat to move, and the positioning slot of the positioning seat can adapt to and position the vertical high-pressure oil pipe joint, facilitating subsequent cleaning operations; the air nozzle faces the positioning slot, and high-pressure airflow generated by an external air source can be used to blow the surface of the high-pressure oil pipe joint, cleaning impurities on the outer peripheral wall and other parts; the cleaning unit is used to clean the inner hole of the high-pressure oil pipe joint, and is arranged sequentially with the air nozzle along the moving path, realizing the step-by-step automated cleaning of the outer peripheral wall and inner hole of the high-pressure oil pipe joint, improving cleaning efficiency and effect, reducing manual operation, and adapting to the needs of large-scale production; it avoids the problems of difficulty in accurately controlling the airflow direction, low efficiency, and debris splashing caused by manual operation.

[0008] In one possible implementation, the cleaning unit includes a fixed frame, a lifting device, and a cleaning rod. The fixed frame is mounted on a machine frame, the lifting device is mounted on the fixed frame, and the cleaning rod is connected to the lifting end of the lifting device. The cleaning rod is inserted into the inner hole of the high-pressure oil pipe connector by the drive of the lifting device to remove residual impurities. Compared with the prior art, the fixed frame ensures the installation and fixation of the cleaning unit, and the lifting device can precisely control the lifting and lowering action of the cleaning rod, enabling the cleaning rod to accurately insert into the inner hole of the high-pressure oil pipe connector, realizing automated cleaning of impurities in the inner hole, improving the accuracy and reliability of cleaning, replacing manual operation, and improving efficiency. At the same time, the insertion depth of the cleaning rod can be adjusted by the lifting device according to the depth of the inner hole of the high-pressure oil pipe connector to better remove residual impurities at different positions in the inner hole.

[0009] In one possible implementation, the mounting bracket is equipped with a guide plate, which has a guide hole for the cleaning rod to slide through. The guide hole is aligned with the positioning slot of the positioning seat. Compared with the prior art, the guide plate and guide hole provide guidance for the movement of the cleaning rod, ensuring that the cleaning rod moves in the correct direction during lifting and lowering, avoiding deviation, and enabling it to accurately insert into the inner hole of the high-pressure oil pipe connector in the positioning slot. This ensures the accuracy and stability of the cleaning operation and further improves the cleaning effect of the inner hole. The guide hole aligning with the positioning slot ensures that the movement trajectory of the cleaning rod precisely corresponds to the position of the inner hole of the high-pressure oil pipe connector, improving the automation level and work efficiency of the device.

[0010] In one possible implementation, the cleaning rod is provided with a limiting block that abuts against the guide plate. When the limiting block abuts against the guide plate, the cleaning rod extends into the inner hole of the high-pressure oil pipe connector. Compared with the prior art, the limiting block plays a limiting role. When the limiting block abuts against the guide plate, the position of the cleaning rod extending into the inner hole of the high-pressure oil pipe connector can be determined, preventing the cleaning rod from being inserted too deeply or too shallowly, ensuring that the cleaning rod cleans the inner hole at an appropriate depth, thus ensuring the cleaning effect and avoiding damage to the inner hole of the high-pressure oil pipe connector. No additional position detection or control device is required. Precise control of the insertion depth of the cleaning rod is achieved through mechanical limiting. The structure is simple, the cost is low, and the reliability is high.

[0011] In one possible implementation, the bottom end of the cleaning rod is provided with an annular flexible scraper, which is matched to the inner hole of the high-pressure oil pipe connector. Compared with the prior art, the annular flexible scraper, matched to the inner hole of the high-pressure oil pipe connector, can conform to the inner wall of the high-pressure oil pipe connector. When the cleaning rod is inserted into the inner hole, the scraping action of the flexible scraper can more effectively remove impurities such as metal shavings and cutting fluid residues adhering to the inner wall of the inner hole, especially for some highly viscous impurities, the cleaning effect is better; the flexible scraper has a certain degree of flexibility and will not cause scratches or other damage to the inner wall of the high-pressure oil pipe connector, ensuring the quality and precision of the high-pressure oil pipe connector.

[0012] In one possible implementation, the flexible scraper is detachably connected to the cleaning rod via screws. Compared to existing technologies, the screw-detachable connection facilitates the installation and removal of the flexible scraper; when the flexible scraper becomes worn or damaged after a period of use, it can be quickly disassembled and replaced with a new scraper without replacing the entire cleaning rod, reducing maintenance costs and improving the practicality and economy of the device; at the same time, it facilitates the replacement of flexible scrapers of different sizes or shapes according to different specifications or types of high-pressure oil pipe joint inner holes, making the device more adaptable and versatile.

[0013] In one possible implementation, the moving mechanism includes a rotary disk and a rotary disk driver. The rotary disk is rotatably mounted on the frame, and the output end of the rotary disk driver is connected to the rotary disk and drives it to rotate. The air nozzles and cleaning units are distributed circumferentially around the rotary disk, and the positioning seat is fixed on the rotary disk. Compared with the prior art, the rotary disk rotates under the drive of the rotary disk driver, which can drive the high-pressure oil pipe joints on the positioning seat to pass through the positions of the air nozzles and cleaning units in sequence, realizing the automatic transfer of high-pressure oil pipe joints between different cleaning stations, forming a production line-style cleaning operation, greatly improving cleaning efficiency and meeting the needs of large-scale production. The air nozzles and cleaning units are distributed circumferentially around the rotary disk, which is a reasonable layout, allowing the high-pressure oil pipe joints to receive surface blowing and internal hole cleaning in sequence during rotation. The operation process is smooth, the degree of automation is high, and manual intervention is reduced. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a structural diagram of the cleaning unit;

[0016] Figure 3 This is a schematic diagram of the rotating disk.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Frame; 2. Conveying unit; 21. Moving mechanism; 211. Rotary disk; 212. Rotary disk driver; 22. Positioning seat; 221. Positioning slot; 3. Air nozzle; 4. Cleaning unit; 41. Fixing frame; 42. Lifter; 43. Cleaning rod; 44. Guide plate; 45. Limiting block; 5. Arc-shaped enclosure. Detailed Implementation

[0019] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0020] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0021] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] See Figures 1 to 3This application discloses a flexible polishing device for the inner wall of a high-pressure oil pipe connector valve core, comprising: a frame 1 for providing support; a conveying unit 2, including a moving mechanism 21 and a positioning seat 22, wherein the moving mechanism 21 is mounted on the frame 1, and the positioning seat 22 is mounted on the moving output end of the moving mechanism 21, and the positioning seat 22 is provided with a positioning slot 221 adapted to a vertical high-pressure oil pipe connector; an air nozzle 3, which is mounted on the frame 1, with the air outlet of the air nozzle 3 facing the positioning slot 221 of the positioning seat 22, and the air inlet of the air nozzle 3 connected to an external air source; and a cleaning unit 4, which is mounted on the frame 1 for cleaning the inner hole of the high-pressure oil pipe connector; wherein the air nozzle 3 and the cleaning unit 4 are arranged sequentially along the moving path of the moving mechanism 21.

[0024] The frame 1 is a metal frame structure, fixed to the workshop floor, providing stable support for the entire device and ensuring that no shaking occurs during operation after the components are installed. The positioning seat 22 is an elastic block, which is fixed to the moving output end of the moving mechanism 21. A positioning slot 221 matching the outer periphery of the vertical high-pressure oil pipe joint is opened on it. The positioning slot 221 has a U-shaped structure and is interference-fitted with the high-pressure oil pipe joint. The air nozzle 3 is an adjustable-angle nozzle, which is mounted on the frame 1 through a bracket. The air outlet faces the positioning slot 221. The air inlet of the air nozzle 3 is connected to an external high-pressure air source (such as an air compressor) through an air pipe, which can spray high-pressure airflow to sweep away impurities on the surface of the high-pressure oil pipe joint.

[0025] In this embodiment, the cleaning unit 4 includes a fixed frame 41, a lifting device 42, and a cleaning rod 43. The fixed frame 41 is mounted on the frame 1, the lifting device 42 is mounted on the fixed frame 41, and the cleaning rod 43 is connected to the lifting end of the lifting device 42. The cleaning rod 43 is driven by the lifting device 42 to insert into the inner hole of the high-pressure oil pipe connector to remove residual impurities. Specifically, the fixed frame 41 is a metal frame, vertically mounted on the frame 1 and fixed to the frame 1 with bolts; the lifting device 42 is an electric push rod or cylinder, vertically mounted on the fixed frame 41 with its telescopic end facing downwards; the cleaning rod 43 is a cylindrical metal rod, with its top end fixedly connected to the telescopic end of the lifting device 42. When the high-pressure oil pipe connector moves below the cleaning unit 4, the lifting device 42 drives the cleaning rod 43 to move downwards, accurately inserting it into the inner hole of the high-pressure oil pipe connector, and removing residual impurities from the inner hole through the scraping action of the cleaning rod 43. That is, the mechanically driven cleaning rod 43 can apply constant pressure, effectively scraping away stubborn impurities attached to the inner wall of the high-pressure oil pipe connector, improving cleaning efficiency.

[0026] In this embodiment, the fixing frame 41 is provided with a guide plate 44, and the guide plate 44 is provided with a guide hole for the cleaning rod 43 to slide through. The guide hole is directly opposite the positioning slot 221 of the positioning seat 22. Specifically, the guide plate 44 is a rectangular metal plate, fixed on the fixing frame 41, parallel to the moving plane of the high-pressure oil pipe joint. A circular guide hole is opened in the center of the guide plate 44 to ensure that the cleaning rod 43 can pass through smoothly. The center line of the guide hole is on the same vertical line as the center axis of the positioning slot 221 of the positioning seat 22. When the moving high-pressure oil pipe joint is located directly below the cleaning unit 4, the guide hole is directly opposite the inner hole of the high-pressure oil pipe joint, ensuring that the cleaning rod 43 is inserted vertically into the inner hole along the guide hole and avoiding deviation.

[0027] In this embodiment, the cleaning rod 43 is provided with a limiting block 45 that abuts against the guide plate 44. When the limiting block 45 abuts against the guide plate 44, the cleaning rod 43 extends into the inner hole of the high-pressure oil pipe connector. Specifically, the limiting block 45 is a circular metal block, fixedly sleeved on the cleaning rod 43, located above the guide plate 44. The diameter of the limiting block 45 is larger than the diameter of the guide hole. When the lifting device 42 drives the cleaning rod 43 to move downward, the limiting block 45 moves downward with the cleaning rod 43 until it abuts against the upper surface of the guide plate 44. At this time, the bottom end of the cleaning rod 43 just extends into the inner hole of the high-pressure oil pipe connector to a preset depth. The insertion depth of the cleaning rod 43 is precisely controlled by the mechanical limiting method to avoid inserting too deeply and damaging the inner hole of the high-pressure oil pipe connector, or inserting too shallowly and causing incomplete cleaning.

[0028] In this embodiment, the bottom end of the cleaning rod 43 is provided with a ring-shaped flexible scraper, which is matched to the inner hole of the high-pressure oil pipe connector. Specifically, the flexible scraper is made of rubber or silicone and is made into a ring shape with an outer diameter that matches the inner diameter of the high-pressure oil pipe connector. When the cleaning rod 43 is inserted into the inner hole of the high-pressure oil pipe connector, the flexible scraper is in close contact with the inner wall of the high-pressure oil pipe connector. As the cleaning rod 43 moves up and down, the scraper removes metal debris, cutting fluid residue and other impurities attached to the inner wall of the inner hole. That is, the flexible scraper can effectively remove sticky cutting fluid residue without scratching the surface of the inner hole of the high-pressure oil pipe connector.

[0029] In this embodiment, the flexible scraper is detachably connected to the cleaning rod 43 by screws. Specifically, when the scraper wears out, the screws can be unscrewed to quickly replace it with a new one without disassembling the entire cleaning rod 43, thus reducing maintenance costs.

[0030] In this embodiment, the moving mechanism 21 includes a rotating disk 211 and a rotating disk driver 212. The rotating disk 211 is rotatably mounted on the frame 1. The output end of the rotating disk driver 212 is connected to the rotating disk 211 and drives the rotating disk 211 to rotate. The air nozzles 3 and cleaning units 4 are distributed at intervals along the circumference of the rotating disk 211. The positioning seat 22 is fixed on the rotating disk 211. Specifically, the rotating disk 211 is a circular metal disk, which is mounted on a rotating bearing at the top of the frame 1 through a central bushing. The rotating disk driver 212 is a stepper motor, which is fixed at the bottom of the frame 1. Its output shaft is connected to the central bushing of the rotating disk 211 to drive the rotating disk 211 to rotate. The air nozzles 3 and cleaning units 4 are respectively installed at two different positions on the outer circumference of the rotating disk 211. When rotating with the rotating disk 211, the high-pressure oil pipe joint on the positioning seat 22 passes through the air nozzle 3 station and the cleaning unit 4 station in sequence, forming an automated cleaning operation for the high-pressure oil pipe joint. The outer periphery of the rotating disk 211 is provided with an arc-shaped surrounding plate 5 fixed on the frame 1 to prevent the high-pressure oil pipe joint on the positioning seat 22 from coming out of the positioning slot 221.

[0031] In this embodiment, the device also includes a dust cover surrounding the air nozzle 3 and the cleaning unit 4. Specifically, when the air nozzle 3 is blowing and the cleaning unit 4 is operating, the dust cover can block flying debris and dust, preventing pollution of the workshop environment and protecting the safety of operators.

[0032] In this embodiment, a negative pressure dust collection component is provided below the rotating disk 211 to collect scattered debris. Specifically, after the negative pressure dust collection component is activated, it generates negative pressure, and debris falling from the surface of the high-pressure oil pipe joint is sucked into the pipe through the dust collection port and collected into the dust collection box, ensuring that debris does not accumulate inside the device.

[0033] The flexible polishing device for the inner wall of a high-pressure oil pipe joint valve core in this embodiment has the following advantages:

[0034] I. Automated Production Line Design: The high-pressure oil pipe connector on the positioning seat 22 is driven by the rotary disc 211 to pass through the air nozzle 3 and the cleaning unit 4 station in sequence, realizing continuous operation, significantly improving efficiency, and adapting to the needs of large-scale production. The cleaning unit 4 uses a lifting device 42 to drive the cleaning rod 43, combined with the mechanical limiting of the guide hole and the limit block 45, to ensure accurate and fast cleaning action, replacing manual operation.

[0035] II. Precise Cleaning and Safety Assurance: The air nozzle 3 sprays high-pressure airflow in a directional manner through an adjustable nozzle to remove impurities from the surface of the high-pressure oil pipe joint; the bottom of the cleaning rod 43 is equipped with a ring-shaped flexible scraper that adapts to the inner wall of the hole, scraping away stubborn residues without damaging the high-pressure oil pipe joint. The dust cover and negative pressure dust collection component effectively collect splashed debris, avoiding the safety risks of traditional air gun operation, reducing environmental pollution, and ensuring operational safety.

[0036] III. Modular Design and Ease of Maintenance: The flexible scraper is removable with screws and can be quickly replaced after wear, reducing maintenance costs; the scraper design adaptable to different specifications of high-pressure oil pipe joints enhances versatility. The fixing frame 41 adopts a metal frame structure, which, combined with the guide plate 44 and the limit block 45, simplifies control and improves operational stability and long-term reliability.

[0037] IV. Environmental and economic benefits: Centralized recycling and treatment of waste reduces workshop pollution and meets the requirements of green production.

[0038] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0039] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A flexible polishing device for the inner wall of a high-pressure oil pipe joint valve core, characterized in that, include: The frame is used to provide support; The conveying unit includes a moving mechanism and a positioning seat. The moving mechanism is mounted on a frame, and the positioning seat is mounted on the moving output end of the moving mechanism. The positioning seat is provided with a positioning slot adapted to a vertical high-pressure oil pipe joint. An air nozzle is mounted on the frame, with its outlet facing the positioning slot of the positioning seat and its inlet connected to an external air source. A cleaning unit, mounted on a frame, is used to clean the inner bore of high-pressure oil pipe joints; The air nozzle and the cleaning unit are arranged sequentially along the moving path of the moving mechanism.

2. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 1, characterized in that, The cleaning unit includes a fixed frame, a lifting device, and a cleaning rod. The fixed frame is mounted on the machine frame, the lifting device is mounted on the fixed frame, and the cleaning rod is connected to the lifting end of the lifting device. The cleaning rod is inserted into the inner hole of the high-pressure oil pipe connector by the drive of the lifting device to remove residual impurities.

3. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 2, characterized in that, The fixing frame is provided with a guide plate, and the guide plate is provided with a guide hole for the cleaning rod to slide through, and the guide hole is directly opposite the positioning slot of the positioning seat.

4. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 3, characterized in that, The cleaning rod is provided with a limiting block that abuts against the guide plate. When the limiting block abuts against the guide plate, the cleaning rod extends into the inner hole of the high-pressure oil pipe joint.

5. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 2, characterized in that, The bottom end of the cleaning rod is provided with a ring-shaped flexible scraper, which is matched with the inner hole of the high-pressure oil pipe joint.

6. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 5, characterized in that, The flexible scraper is detachably connected to the cleaning rod by screws.

7. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 1, characterized in that, The moving mechanism includes a rotating disk and a rotating disk driver. The rotating disk is rotatably mounted on the frame. The output end of the rotating disk driver is connected to the rotating disk and drives the rotating disk to rotate. The air nozzles and cleaning units are distributed at intervals along the circumference of the rotating disk. The positioning seat is fixed on the rotating disk.

8. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 7, characterized in that, The outer periphery of the rotating disk is provided with an arc-shaped enclosure plate fixed on the frame to prevent the high-pressure oil pipe joint on the positioning seat from coming out of the positioning slot.

9. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 7, characterized in that, It also includes a dust cover that surrounds the air nozzle and cleaning unit.

10. The flexible polishing device for the inner wall of the high-pressure oil pipe joint valve core according to claim 7, characterized in that, A negative pressure dust collection component is provided below the rotating disk to collect scattered debris.

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