Efficient magnetorheological chemical processing device and method for inner surface of pipe fitting

Abstract

The invention relates to an efficient magneto-rheological chemical machining device and method for the inner face of a pipe fitting and relates to the technical field of machining, the efficient magneto-rheological chemical machining device comprises a base, the upper surface of the base is fixedly connected with a fixing rack, and a chuck is rotationally arranged on the right side of the fixing rack and used for clamping and rotating the pipe fitting; the right side of the fixed rack is rotationally connected with a guide lead screw. The composite grinding technology of magnetorheological machining and chemical liquid polishing is introduced, the spraying assembly and the magnetic grinding assembly are installed on the surface of the machining rod at the same time, the magnetic grinding assembly is adjacent to the spraying assembly, and synchronous operation of chemical polishing liquid spraying and magnetic grinding is achieved; the inner wall of the pipe fitting can be ground after the spraying assembly is used for spraying, the polishing effect and efficiency of the inner surface of the pipe fitting are improved, the problems of low precision, microcracks and the like of current magnetic grinding machining of the pipe fitting are solved, and the time and cost of high-precision machining are effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to a device and method for efficiently processing the inner surface of a pipe by magnetorheological changes. Background Art

[0002] In recent years, with the continuous development of machinery manufacturing, my country's industrial requirements for fine processing and surface quality have been increasing, and the market demand for high-precision pipes has grown rapidly, and will continue to grow in the future. High-precision pipes are widely used in automobile manufacturing, aerospace, military industry, machinery manufacturing and other industries. They have the characteristics of smooth surface, corrosion resistance, and long service life.

[0003] Regarding the above-mentioned related technologies, the inventors believe that there are the following defects: the processing speed and efficiency of traditional magnetic grinding may be slow, and the processing effect on certain hard materials is not good. In addition, traditional magnetic grinding equipment is usually expensive and the cost of equipment investment is high. Summary of the invention

[0004] In order to improve the problems that the processing speed and efficiency of traditional magnetic grinding may be slow, the processing effect on certain hard materials is poor, and traditional magnetic grinding equipment is usually expensive and the equipment investment cost is high, the present application provides a high-efficiency magnetofluidic machining device and method for the inner surface of pipe fittings.

[0005] In the first aspect, the present application provides a high-efficiency magnetofluidic machining device for the inner surface of a pipe, which adopts the following technical solutions:

[0006] A high-efficiency magnetorheological processing device for the inner surface of a pipe fitting comprises a base, the upper surface of the base is fixedly connected to a fixed frame, a chuck is rotatably arranged on the right side of the fixed frame, and the chuck is used to clamp and rotate the pipe fitting;

[0007] The right side of the fixed frame is rotatably connected with a guide screw, the surface of the guide screw is threadedly connected with a movable frame, the left side of the movable frame is fixedly provided with a processing rod, and the end of the processing rod is fixedly provided with a spraying assembly and a magnetic grinding assembly;

[0008] The spray assembly includes a diverter box fixedly connected to the left end of the processing rod, two nozzles are fixedly arranged on the front and rear upper and lower surfaces of the diverter box, a liquid storage tank is fixedly arranged on the right side of the base, and a delivery pump is fixedly installed on the upper surface of the liquid storage tank;

[0009] The magnetic grinding assembly includes a pole seat, a magnet and a grinding magnetic material. The pole seat is fixedly connected to the surface of the processing rod, the magnet is inserted and installed on the upper and lower surfaces of the pole seat, and the grinding magnetic material is adsorbed and fixed on the surface of the magnet.

[0010] By adopting the above technical solution, the chuck clamping and rotation functions can keep the pipe fittings stable during the processing. The threaded connection between the guide screw and the movable frame can achieve precise linear motion, provide a stable processing trajectory for the processing rod, and improve the processing consistency. The spray component realizes chemical polishing. The magnetic grinding component uses the adsorption force of the magnet and the grinding magnetic material to achieve efficient mechanical polishing, comprehensively improving the smoothness of the inner wall of the pipe fitting. The diverter box and multi-nozzle can evenly spray the polishing liquid to all directions of the inner wall of the pipe fitting, enhance the chemical polishing effect, and avoid processing dead corners. The pole seat and the magnet provide strong magnetic field adsorption. Ensure that the grinding magnetic material acts stably on the inner wall of the pipe, enhance the grinding effect, and realize deep processing of the inner wall. The liquid storage tank and the delivery pump realize the circulation supply of the processing fluid to avoid waste, reduce operating costs, and improve processing efficiency. The spraying component and the magnetic grinding component are independent modules, which are easy to load and unload, maintain and replace, and improve the applicability and service life of the device. The magnetic field driven grinding method reduces mechanical wear, improves processing efficiency and stability, and is suitable for continuous operation. The directional spraying of the processing fluid and the recovery of waste liquid reduce pollution, ensure the cleanliness of the operating environment, meet environmental protection requirements, and have strong adaptability.

[0011] Preferably, the input end of the delivery pump extends to the interior of the liquid storage tank, a conversion box is fixedly connected to the upper surface of the liquid storage tank, a delivery pipe is fixedly arranged between the output end of the delivery pump and the conversion box, a cleaning water pipe is fixedly arranged on the back of the conversion box, and switch valves are fixedly installed on the surfaces of the cleaning water pipe and the delivery pipe.

[0012] By adopting the above technical solution, the delivery pump is connected to the liquid storage tank and the conversion box. Through the control of the switch valve, the supply of polishing liquid and cleaning liquid can be quickly switched to meet the needs of different processing stages. The input end of the delivery pump extends to the inside of the liquid storage tank to ensure that there is no retention or interruption in the liquid delivery process, thereby achieving a stable liquid supply effect. The delivery pipe and the cleaning water pipe are equipped with a switch valve to adjust the liquid flow rate and improve the accuracy and effect of the polishing and cleaning process. Through the layout design of the conversion box and multiple pipelines, the liquid type and flow direction can be flexibly switched according to needs, thereby improving the versatility and applicability of the device. Through the optimized design of the liquid supply and cleaning process, the waste of chemical polishing liquid and cleaning liquid is reduced, and the operation is reduced. Cost, the cleaning water pipe goes directly to the processing area, and the waste and chemicals remaining in the processing process are quickly removed by accurately spraying the cleaning liquid to ensure the cleanliness of the pipes after processing. The switch valve design on the surface of each pipe facilitates the control of the liquid flow, avoids accidental leakage or excessive liquid supply in the pipeline, and ensures the safe operation of the equipment. The conversion box integrates the functional modules of conveying liquid and cleaning liquid, reduces the setting of independent components, and makes the overall device more compact. The flexible liquid control design enables the device to adapt to different processing needs, including efficient polishing and thorough cleaning, and meet the requirements of different materials and process standards. By accurately controlling the conveying and cleaning processes, liquid waste and overflow are avoided, the impact on the environment is reduced, and it meets the requirements of environmentally friendly production.

[0013] Preferably, a liquid supply hose is fixedly provided on the upper surface of the conversion box, and one end of the liquid supply hose away from the conversion box is fixedly connected to the input end of the diversion box.

[0014] By adopting the above technical solution, the liquid supply hose connects the conversion box with the diverter box to realize the rapid transmission of liquid from the liquid storage system to the spray assembly, ensuring the continuity of the processing process. The liquid supply hose is fixedly connected to the conversion box and the diverter box to ensure the sealing performance and effectively avoid leakage and waste during liquid transmission. Combined with the liquid storage system and the diverter box, the liquid supply hose ensures that the liquid is evenly distributed to each nozzle, providing consistent chemical polishing and cleaning effects for pipe processing, providing a stable liquid delivery path, avoiding uneven processing or incomplete cleaning due to fluctuations in liquid supply, facilitating disassembly, cleaning or replacement, and efficient liquid transmission reduces liquid residue and waste, reduces the consumption of chemical substances, and meets green processing requirements.

[0015] Preferably, a displacement motor is fixedly mounted on the left side of the fixed frame, and an output shaft of the displacement motor extends to the right side of the fixed frame and is fixedly connected to the left end of the guide screw.

[0016] By adopting the above technical solution, the displacement motor is fixedly connected to the guide screw, and by controlling the rotation of the displacement motor, high-precision movement of the processing component along the guide screw is achieved to ensure the accuracy of the processing position. The automatic drive of the displacement motor replaces the traditional manual adjustment method, which greatly improves the degree of automation and operating efficiency of the equipment operation. The direct fixed connection between the output shaft of the displacement motor and the guide screw ensures stable power output during the transmission process and avoids position offset problems caused by mechanical transmission gaps. By adjusting the operating parameters of the displacement motor, the processing component can be flexibly advanced and retreated on the guide screw to meet the processing requirements of pipes of different specifications and lengths, drive the processing component to move quickly and smoothly, reduce dwell time, improve overall processing efficiency, ensure the repeatability and consistency of the processing path, and meet high-quality processing requirements.

[0017] Preferably, a rotating motor is fixedly arranged on the left side of the fixed frame, the output shaft of the rotating motor is fixedly connected to the left side of the chuck, and the processing rod and the chuck have the same central axis.

[0018] By adopting the above technical solution, the processing rod and the chuck share the same central axis, ensuring that the rotation axis of the processing rod is consistent with the chuck, avoiding processing errors caused by eccentricity, and significantly improving processing accuracy. The chuck is directly fixedly connected to the output shaft of the rotating motor, and the power transmission path is short, which reduces the vibration or deviation that may be caused by the intermediate links, thereby improving the operating stability of the entire device.

[0019] Preferably, two limit support assemblies are fixedly connected to the upper surface of the base, and the limit support assembly includes a strip limit shell, the inner wall of the strip limit shell is rotatably connected to an adjusting screw, the surface of the adjusting screw is threadedly connected to an adjusting base, and a mechanical arm is fixedly installed on the upper surface of the adjusting base.

[0020] By adopting the above technical solution, the threaded connection between the adjusting screw and the adjusting base can be adjusted so that the installation position of the robot arm can be accurately adjusted. By rotating the adjusting screw, the height and position of the robot arm can be flexibly changed. The strip limit shell provides guidance and support for the adjusting screw to prevent deviation or shaking during the adjustment process, so that the robot arm maintains good stability during work. The limit support assembly ensures that the movement path of the robot arm is along the axial direction of the screw, avoiding error accumulation and improving the positioning accuracy during equipment operation. The robot arm is adjusted to different heights or positions through the adjusting base to adapt to different working conditions, thereby increasing the application scenarios and functional diversity of the equipment and having a strong load capacity.

[0021] Preferably, an arc-shaped limit plate is fixedly connected to the top of the robotic arm, and four mounting grooves are provided on the surface of the arc-shaped limit plate. The inner wall of the mounting groove is rotatably connected to a limit roller, and the limit roller is used to support and limit both sides of the pipe.

[0022] By adopting the above technical solution, the contact between the limit roller and the two sides of the pipe provides effective support, preventing the pipe from shaking or shifting during processing or moving, thereby improving working stability. The arc limit plate combined with the limit roller can accurately limit the movement range of the pipe to ensure that it remains stable in the specified position. The limit roller adopts a rotating design, which significantly reduces the friction when the pipe slides on the roller, reducing the wear on the surface of the pipe. The four mounting slots on the arc limit plate can select the appropriate limit roller position according to the size of the pipe, thereby adapting to pipes of different diameters or shapes and improving versatility. The arc limit plate provides multiple mounting slots, so that the position of the limit roller can be adjusted according to actual needs, increasing the flexibility and adaptability of the system configuration.

[0023] Preferably, an adjusting motor is fixedly provided at one end of the strip-shaped limiting shell, and an output shaft of the adjusting motor extends into the interior of the strip-shaped limiting shell and is fixedly connected to the end of the adjusting screw rod.

[0024] By adopting the above technical solution, the adjusting motor drives the adjusting screw to realize automatic adjustment of the limit assembly, which reduces the need for manual intervention and improves operating efficiency. The adjusting screw driven by the motor can accurately control the position of the adjusting base to ensure the accurate position of the limit support of the robot arm or related components. There is no need to manually adjust the adjusting screw, which simplifies the operating process and makes the adjustment process smooth and smooth. The introduction of the adjusting motor enables the adjustment process of the limit assembly to be controlled by electronic signals, which provides the possibility for remote operation or intelligent management.

[0025] In the second aspect, the present application provides a method for efficiently processing the inner surface of a pipe by magnetorheological changes, which adopts the following technical solution:

[0026] S1: Start the spindle box, control the right frame to move in the positive direction of the Y axis, install one end of the pipe to be processed on the triangular chuck and clamp it;

[0027] S2: Control the right frame to move in the negative direction of the Y axis until the left end of the lead screw is connected to the center hole of the chuck and the motor is automatically shut down. Control the robot arm to clamp the pipe and calibrate the position so that the pipe and the lead screw are on the same axis;

[0028] S3: Turn on the screw motor to control the rotation of the screw and the feed rate of the Y axis. The spraying component and the grinding component move in the negative direction of the Y axis at the same time. The spraying component sprays the chemical polishing liquid in front to perform preliminary processing on the pipe fittings, and the grinding component rotates and feeds in the back. The abrasive and the inner wall of the pipe fittings are fully in contact and friction, and the pipe fittings are further processed. Then the motor is controlled to run in the opposite direction, and the grinding component and the spraying component move in the positive direction of the Y axis;

[0029] S4: The grinding assembly performs secondary processing on the pipe fittings. At this time, the liquid storage tank is converted into a cleaning liquid supply, and the spraying component sprays the cleaning agent onto the inner wall of the pipe fitting to clean the processing waste remaining on the inner wall of the pipe fitting;

[0030] S5: After the grinding assembly and the spraying component return to the starting point, control the right frame to move in the positive direction of the Y axis until the lead screw and the pipe are kept at a certain safe distance, and release the three-jaw chuck. Control the robot arm to hold the pipe and rotate 90° clockwise, pour the waste material and waste liquid into the bottom tank, and then rotate 90° in the direction of the pointer, and repeat the above steps until the target polishing effect is achieved.

[0031] By adopting the above technical scheme, the positioning accuracy during the processing is ensured through the precise positioning of the robot arm and the coaxial adjustment of the pipe fitting and the lead screw, and the processing error of the inner wall of the pipe fitting is reduced. During the initial processing, chemical polishing is achieved by spraying chemical polishing liquid. During the deep processing, the grinding component and the abrasive rub the inner wall to achieve efficient and uniform surface polishing effect. The combination of primary processing, deep processing and secondary processing can gradually improve the smoothness of the inner wall of the pipe fitting to ensure that the surface quality meets the requirements. The introduction of cleaning liquid for cleaning in the secondary processing stage can effectively remove the inner wall processing waste, avoid residual pollution, and improve product quality. Through the rotation and dumping function of the robot arm, the processing waste liquid and waste are conveniently discharged into the bottom tank, avoiding the labor intensity and secondary pollution in traditional manual operation. By accurately controlling the motion trajectory of the spraying component and the grinding component and the Y-axis feed rate, multiple cycles of processing can be achieved to meet different smoothness requirements. The continuous and automated design of multiple processes significantly reduces the processing time and is suitable for large-scale production applications. After the processing is completed, the lead screw and the pipe fitting are controlled to maintain a safe distance, and the robot arm is used for operation to reduce the risk of manual intervention and improve the safety of operation.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The present invention introduces the composite grinding technology of magnetorheological machining and chemical liquid polishing, installs the spraying component and the magnetic grinding component on the surface of the machining rod at the same time, and the magnetic grinding component is adjacent to the spraying component, so as to realize the synchronous operation of spraying chemical polishing liquid and magnetic grinding. The inner wall of the pipe fitting can be ground after spraying with the spraying component, thereby improving the polishing effect and efficiency of the inner surface of the pipe fitting, so as to solve the problems of low precision and micro cracks in the current magnetic grinding processing of pipe fittings, and effectively reduce the time and cost of high-precision machining;

[0034] 2. By arranging a limiting support assembly on the surface of the base, the arc-shaped limiting plate at the end of the robot arm can be used to support and limit the pipe fitting, and the limiting roller on the surface of the arc-shaped limiting plate can be used to roll in contact with the surface of the pipe fitting, so that the outside of the pipe fitting can be supported and limited during the rotation of the pipe fitting, thereby improving the stability of the pipe fitting during grinding, and the position of the robot arm can be adjusted by using an adjusting motor, which is suitable for limiting pipe fittings of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a front view structural schematic diagram of a device and method for efficiently processing the inner surface of a pipe according to an embodiment of the present application;

[0036] Figure 2 This is a rear structural schematic diagram of a device and method for efficiently processing the inner surface of a pipe according to an embodiment of the present application;

[0037] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0038] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0039] Figure 5 for Figure 2 The enlarged structural diagram at C in the middle;

[0040] Figure 6 This is a schematic structural diagram of a high-efficiency magnetofluidic processing device and method for the inner surface of a pipe proposed by the present invention.

[0041] Explanation of the accompanying drawings: 1. base; 2. fixed frame; 3. chuck; 4. movable frame; 5. processing rod; 6. spray assembly; 7. magnetic grinding assembly; 8. liquid storage tank; 9. delivery pump; 10. conversion box; 11. delivery pipe; 12. cleaning water pipe; 13. switch valve; 14. liquid supply hose; 15. displacement motor; 16. rotating motor; 17. limit support assembly; 18. guide screw; diverter box; 602, nozzle; pole seat; 702, magnet; 703, grinding magnetic material; 1701, strip limit shell; 1702, adjustment screw; 1703, adjustment base; 1704, mechanical arm; 1705, arc limit plate; 1706, limit roller; 1707, adjustment motor. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-6 This application is described in further detail.

[0043] This embodiment discloses a high-efficiency magnetofluidic processing device for the inner surface of a pipe. Figure 1 and Figure 2 , including a base 1, a fixed frame 2 is fixedly connected to the upper surface of the base 1, a chuck 3 is rotatably provided on the right side of the fixed frame 2, and the chuck 3 is used to clamp and rotate the pipe fitting, a rotating motor 16 is fixedly provided on the left side of the fixed frame 2, and the output shaft of the rotating motor 16 is fixedly connected to the left side of the chuck 3, the processing rod 5 and the chuck 3 are the same central axis, the right side of the fixed frame 2 is rotatably connected to the guide screw 18, and the surface of the guide screw 18 is threadedly connected to the movable frame 4, the left side of the movable frame 4 is fixedly provided with a processing rod 5, and the end of the processing rod 5 is fixedly provided with a spraying assembly 6 and a magnetic grinding assembly 7, and a displacement motor 15 is fixedly installed on the left side of the fixed frame 2, and the output shaft of the displacement motor 15 extends to the right side of the fixed frame 2 and is fixedly connected to the left end of the guide screw 18, the chuck 3 is used to firmly clamp the pipe fitting, and the rotating motor 16 drives the chuck 3 to rotate, so that the inner wall of the pipe fitting is evenly processed to ensure the continuity and consistency of the processed surface,

[0044] The guide screw 18 is connected with the displacement motor 15 to drive the movable frame 4 to move along the fixed frame 2, and accurately control the position of the processing rod 5 to meet the processing requirements of pipes of different lengths. The end of the processing rod 5 is provided with a spraying component 6 and a magnetic grinding component 7. The inner wall of the pipe is efficiently cleaned, polished and surface treated by the combined action of chemistry and magnetism. The rotating motor 16 and the displacement motor 15 cooperate with each other to realize full-automatic processing operation through program control, reduce manual intervention, and realize rapid processing of the inner wall of the pipe through continuous rotation driven by the rotating motor 16 and precise control of the displacement motor 15, which significantly improves the processing efficiency.

[0045] The magnetic grinding component 7 can remove tiny burrs and residues on the inner wall. The spraying component 6 provides chemical media to optimize the surface finish and consistency of the inner wall. The combined processing of magnetic grinding and chemical spraying reduces tool loss and material waste in traditional processing and improves resource utilization. The spraying component can optimize the use of chemical reagents, reduce waste and emissions of chemical substances, improve the environmental performance of the device, and achieve efficient, precise and automated processing of the inner wall of the pipe. It is suitable for the pipe manufacturing needs of various industrial fields, while improving processing quality and production efficiency.

[0046] Reference Figure 4 and Figure 6The upper surface of the base 1 is fixedly connected with two limit support assemblies 17, and the limit support assembly 17 includes a strip limit shell 1701, the inner wall of the strip limit shell 1701 is rotatably connected with an adjusting screw rod 1702, the surface of the adjusting screw rod 1702 is threadedly connected with an adjusting base 1703, and a mechanical arm 1704 is fixedly installed on the upper surface of the adjusting base 1703, and the top of the mechanical arm 1704 is fixedly connected with an arc limit plate 1705, and the surface of the arc limit plate 1705 is provided with four mounting grooves, and the inner wall of the mounting groove is rotatably connected with a limit roller 1706, and the limit roller 1706 is used to adjust The two sides of the pipe fitting are supported and limited. By arranging a limited support assembly 17 on the surface of the base 1, the arc-shaped limit plate 1705 at the end of the mechanical arm 1704 can be used to support and limit the pipe fitting, and the limit roller 1706 on the surface of the arc-shaped limit plate 1705 can be used to roll with the surface of the pipe fitting, so that the outside of the pipe fitting can be supported and limited during the rotation of the pipe fitting, thereby improving the stability of the pipe fitting during grinding, and the position of the mechanical arm 1704 can be adjusted by the adjustment motor 1707, which is suitable for limiting pipe fittings of different lengths. One end of the strip limit shell 1701 is fixed An adjusting motor 1707 is fixedly provided, and the output shaft of the adjusting motor 1707 extends to the interior of the strip-shaped limiting shell 1701 and is fixedly connected to the end of the adjusting screw rod 1702. The limiting support assembly 17 supports and limits the pipe fittings at multiple points through the mechanical arm 1704 and the arc-shaped limiting plate 1705 to ensure the stability of the pipe fittings during processing. The adjusting screw rod drives the adjusting base and the mechanical arm 1704 to move by linkage with the adjusting motor 1707, so that the device can adapt to pipe fittings of different lengths, thereby enhancing the versatility and flexibility of the equipment. The limiting roller 1706 on the arc-shaped limiting plate 1705 is rolled with the surface of the pipe fitting. Dynamic contact avoids friction damage that may be caused by fixed support, while allowing the pipe to rotate smoothly. The limiting roller provides lateral support, effectively suppresses radial vibration during the rotation of the pipe, and improves processing accuracy. The combined effect forms effective support and limitation for the pipe, reduces instability caused by rotation or processing vibration, supports the pipe by rolling contact, avoids friction damage and uneven contact, improves the smoothness and accuracy of the processed surface, and has efficient, stable and precise support and limitation capabilities during the pipe processing process, significantly improves processing quality and efficiency, and has wide industrial application value.

[0047] Reference Figure 3 and Figure 5 In a preferred embodiment, the spray assembly 6 includes a diverter box 601 fixedly connected to the left end of the processing rod 5, and two nozzles 602 are fixedly arranged on the front and rear upper and lower surfaces of the diverter box 601. A liquid storage tank 8 is fixedly arranged on the right side of the base 1, and a delivery pump 9 is fixedly installed on the upper surface of the liquid storage tank 8;

[0048] The magnetic grinding assembly 7 includes a pole seat 701, a magnet 702 and a grinding magnetic material 703. The pole seat 701 is fixedly connected to the surface of the processing rod 5. The magnet 702 is inserted and installed on the upper and lower surfaces of the pole seat 701. The grinding magnetic material 703 is adsorbed and fixed on the surface of the magnet 702 with a spacing of ten centimeters. The grinding magnetic material 703 uses an adsorbed grinding cloth or magnetorheological fluid to achieve grinding of the inner wall of the pipe. The rotating motor 16 is used to drive the pipe to rotate, thereby ensuring uniform spraying and efficient use of the chemical polishing liquid.

[0049] The size of the magnet 702 can be changed to process pipes of different diameters. The magnet 702 can successively adsorb the grinding cloth and the magnetorheological fluid to perform rough and deep processing on the inside of the pipe.

[0050] This application introduces a composite grinding technology of magnetorheological machining and chemical liquid polishing, and installs the spray component 6 and the magnetic grinding component 7 on the surface of the machining rod 5 at the same time, and the magnetic grinding component 7 is adjacent to the spray component 6, thereby realizing the synchronous operation of spraying chemical polishing liquid and magnetic grinding. The inner wall of the pipe fitting can be ground after spraying with the spray component 6, thereby improving the polishing effect and efficiency of the inner surface of the pipe fitting, so as to solve the problems of low precision and microcracks in the current magnetic grinding processing of pipe fittings, and effectively reduce the time and cost of high-precision machining.

[0051] The input end of the delivery pump 9 extends to the interior of the liquid storage tank 8, and a conversion box 10 is fixedly connected to the upper surface of the liquid storage tank 8. A delivery pipe 11 is fixedly arranged between the output end of the delivery pump 9 and the conversion box 10, and a cleaning water pipe 12 is fixedly arranged on the back of the conversion box 10. Switch valves 13 are fixedly installed on the surfaces of the cleaning water pipe 12 and the delivery pipe 11. A liquid supply hose 14 is fixedly arranged on the upper surface of the conversion box 10, and one end of the liquid supply hose 14 away from the conversion box 10 is fixedly connected to the input end of the diversion box 601. The conversion box 10 can be used to realize free switching between chemical polishing liquid and cleaning water, so that the cleaning stage can be added in time during the polishing process.

[0052] The implementation principle of the high-efficiency magneto-fluid dynamic chemical processing device for the inner surface of a pipe fitting according to the embodiment of the present application is as follows: when in use, first place the left end of the pipe fitting on the surface of the chuck 3, use the chuck 3 to clamp and fix the pipe fitting, then use the rotating motor 16 to drive the chuck 3 and the pipe fitting to rotate, then start the displacement motor 15 to drive the guide screw 18 to rotate, thereby driving the movable frame 4 to move along the negative direction of the Y-axis of the base 1, and then drive the processing rod 5 to enter the inner wall of the pipe fitting, and at the same time drive the spraying component 6 and the magnetic grinding component 7 to move toward the inside of the pipe fitting at the same time, and then the delivery pump 9 delivers the chemical polishing liquid in the liquid storage tank 8 to the liquid supply hose 14, and then uses the liquid supply hose 14 to input the polishing liquid into the diverter box 601, and uses the diverter box 60 1, a plurality of nozzles 602 on the surface of the pipe are used to spray chemical polishing liquid on the inner wall of the pipe to perform primary processing on the pipe, and at the same time, the magnetic grinding component 7 is used to perform grinding afterwards, so that the magnetic abrasive and the inner wall of the pipe are fully in contact and friction with each other, and the pipe is further processed. Then, the displacement motor 15 is controlled to operate in the opposite direction, and the magnetic grinding component 7 and the spraying component 6 are driven to move in the positive direction of the Y axis to perform secondary processing on the pipe. After polishing is completed, the switch valve 13 on the surface of the delivery pipe 11 is closed, and then the switch valve 13 on the surface of the cleaning water pipe 12 is opened to deliver cleaning water to the spraying component 6, and the spraying component 6 is used to spray the cleaning agent on the inner wall of the pipe to clean the residual processing waste on the inner wall of the pipe. The above steps are repeated until the target polishing effect is achieved.

[0053] According to a high-efficiency magneto-fluid dynamics processing device for the inner surface of a pipe fitting as described in claim 6, it is characterized in that an adjusting motor (1707) is fixedly provided at one end of the strip-shaped limiting shell (1701), and the output shaft of the adjusting motor (1707) extends to the interior of the strip-shaped limiting shell (1701) and is fixedly connected to the end of the adjusting screw rod (1702).

[0054] The present application also discloses a method for efficiently processing the inner surface of a pipe by magnetorheological methods, comprising the following steps:

[0055] S1: Start the spindle box, control the right frame to move in the positive direction of the Y axis, install one end of the pipe to be processed on the triangular chuck and clamp it;

[0056] S2: Control the right frame to move in the negative direction of the Y axis until the left end of the lead screw is connected with the center hole of the chuck and the motor is automatically cut off, and the robot arm is controlled to clamp the pipe and calibrate the position so that the pipe and the lead screw are coaxial;

[0057] S3: Turn on the screw motor to control the rotation of the screw and the feed rate of the Y axis. The spraying component and the grinding component move in the negative direction of the Y axis at the same time. The spraying component sprays the chemical polishing liquid in front to perform preliminary processing on the pipe fittings, and the grinding component rotates and feeds in the back. The abrasive and the inner wall of the pipe fittings are fully in contact and friction, and the pipe fittings are further processed. Then the motor is controlled to run in the opposite direction, and the grinding component and the spraying component move in the positive direction of the Y axis;

[0058] S4: The grinding assembly performs secondary processing on the pipe fittings. At this time, the liquid storage tank is converted into a cleaning liquid supply, and the spraying component sprays the cleaning agent onto the inner wall of the pipe fitting to clean the processing waste remaining on the inner wall of the pipe fitting;

[0059] S5: After the grinding assembly and the spraying component return to the starting point, control the right frame to move in the positive direction of the Y axis until the lead screw and the pipe are kept at a certain safe distance, and release the three-jaw chuck. Control the robot arm to hold the pipe and rotate 90° clockwise, pour the waste material and waste liquid into the bottom tank, and then rotate 90° in the direction of the pointer, and repeat the above steps until the target polishing effect is achieved.

[0060] The implementation principle of the high-efficiency magnetofluidic processing device for the inner surface of a pipe according to the embodiment of the present application is as follows:

[0061] 1. In steps S1 and S2, the pipe to be processed is ensured to be in a precise position by moving the right frame, clamping the three-jaw chuck, and coaxially positioning the lead screw. The auxiliary clamping and precision calibration function of the robot arm further improves the positioning accuracy and ensures the concentricity and uniformity of subsequent processing;

[0062] 2. The grinding component uses magnetic force to guide the abrasive to fully contact the inner wall of the pipe, and uses chemical polishing liquid and magnetic flow abrasive to achieve efficient polishing and deep processing of the inner wall of the pipe. The chemical polishing liquid dissolves the oxide layer on the inner wall of the pipe, providing better contact conditions for the grinding component, improving processing efficiency and surface finish;

[0063] 3. The spraying component first sprays chemical polishing liquid for primary processing, and the grinding component then completes the deep processing. The two work together to ensure that the processing environment is always consistent during the processing. In the secondary processing S4, the liquid storage tank is switched to the cleaning liquid supply system, and the processing waste remaining on the inner wall of the pipe is removed through the spraying component, further improving the cleanliness and quality of the pipe;

[0064] 4. During the processing, the grinding assembly and the spraying assembly are driven by the lead screw to perform forward and reverse reciprocating motion to ensure uniform processing and avoid surface unevenness caused by one-way processing;

[0065] 5. In S5, the pipe is rotated 90° clockwise by the robot arm to achieve automatic discharge of waste liquid and waste materials, reducing the intervention of operators, while avoiding the pollution of waste liquid to the equipment and improving the operation efficiency;

[0066] 6. By controlling the screw rotation speed and Y-axis feed rate, the contact state between the processing component and the inner wall of the pipe can be adjusted in real time to adapt to different processing requirements and material properties;

[0067] 7. By using magneto-fluid dynamics processing technology, chemical polishing and mechanical grinding are combined to form an efficient and stable inner wall processing system.

[0068] The technical advantages of the high-efficiency magnetofluidic processing device and method for the inner surface of a pipe fitting in the present application are:

[0069] 1. The composite processing technology of magnetorheological fluid and chemical liquid polishing is adopted, which has high material removal efficiency and reduces the time cost of processing;

[0070] 2. Install the ball slider and the ordinary slider on the same screw guide rail to ensure the synchronous operation of the two independent processing components;

[0071] 3. The spraying parts adopt the style of surrounding nozzles to ensure the uniform spraying and efficient utilization of chemical polishing liquid;

[0072] 4. The liquid storage tank can realize the automatic switching of chemical polishing liquid and cleaning liquid, and can timely add the cleaning stage during the processing. The present invention introduces the composite polishing technology of magnetorheological and chemical liquid, and utilizes physical and chemical effects at the same time. It can adapt to the processing needs of various materials, speed up the inner surface processing speed, improve the polishing efficiency, meet higher processing accuracy and surface finish requirements, and is suitable for mass production. At the same time, the conveying pipeline can use the liquid storage tank to realize the automatic switching of chemical polishing liquid and cleaning liquid, and timely clean the processed pipe fittings.

[0073] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-efficiency magnetorheological processing device for the inner surface of a pipe, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a fixed frame (2), and a chuck (3) is rotatably provided on the right side of the fixed frame (2), and the chuck (3) is used to clamp and rotate the pipe fitting; The right side of the fixed frame (2) is rotatably connected to a guide screw (18), the surface of the guide screw (18) is threadedly connected to a movable frame (4), a processing rod (5) is fixedly arranged on the left side of the movable frame (4), and a spraying assembly (6) and a magnetic grinding assembly (7) are fixedly arranged at the end of the processing rod (5); The spray assembly (6) comprises a flow diversion box (601) fixedly connected to the left end of the processing rod (5), two spray heads (602) are fixedly arranged on the front and rear upper and lower surfaces of the flow diversion box (601), a liquid storage tank (8) is fixedly arranged on the right side of the base (1), and a delivery pump (9) is fixedly installed on the upper surface of the liquid storage tank (8); The magnetic grinding assembly (7) comprises a magnetic pole seat (701), a magnet (702) and a grinding magnetic material (703); the magnetic pole seat (701) is fixedly connected to the surface of the processing rod (5); the magnet (702) is inserted and installed on the upper and lower surfaces of the magnetic pole seat (701); and the grinding magnetic material (703) is adsorbed and fixed on the surface of the magnet (702).

2. A high-efficiency magnetorheological processing device for the inner surface of a pipe according to claim 1, characterized in that: The input end of the delivery pump (9) extends into the interior of the liquid storage tank (8); a conversion box (10) is fixedly connected to the upper surface of the liquid storage tank (8); a delivery pipe (11) is fixedly arranged between the output end of the delivery pump (9) and the conversion box (10); a cleaning water pipe (12) is fixedly arranged on the back of the conversion box (10); and switch valves (13) are fixedly installed on the surfaces of the cleaning water pipe (12) and the delivery pipe (11).

3. A high-efficiency magnetorheological processing device for the inner surface of a pipe according to claim 2, characterized in that: A liquid supply hose (14) is fixedly arranged on the upper surface of the conversion box (10), and one end of the liquid supply hose (14) away from the conversion box (10) is fixedly connected to the input end of the diversion box (601).

4. The high-efficiency magnetorheological processing device for the inner surface of a pipe according to claim 1, characterized in that: A displacement motor (15) is fixedly mounted on the left side of the fixed frame (2); an output shaft of the displacement motor (15) extends to the right side of the fixed frame (2) and is fixedly connected to the left end of the guide screw (18).

5. The high-efficiency magnetorheological processing device for the inner surface of a pipe according to claim 1, characterized in that: A rotating motor (16) is fixedly arranged on the left side of the fixed frame (2); the output shaft of the rotating motor (16) is fixedly connected to the left side of the chuck (3); and the processing rod (5) and the chuck (3) are on the same central axis.

6. The high-efficiency magnetorheological processing device for the inner surface of a pipe according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to two limit support assemblies (17), the limit support assembly (17) comprising a strip-shaped limit shell (1701), the inner wall of the strip-shaped limit shell (1701) is rotatably connected to an adjustment screw rod (1702), the surface of the adjustment screw rod (1702) is threadedly connected to an adjustment base (1703), and the upper surface of the adjustment base (1703) is fixedly mounted with a mechanical arm (1704).

7. The high-efficiency magnetorheological processing device for the inner surface of a pipe according to claim 6, characterized in that: The top end of the mechanical arm (1704) is fixedly connected with an arc-shaped limiting plate (1705), and the surface of the arc-shaped limiting plate (1705) is provided with four installation grooves, and the inner wall of the installation groove is rotatably connected with a limiting roller (1706), and the limiting roller (1706) is used to support and limit the two sides of the pipe fitting.

8. The high-efficiency magnetorheological processing device for the inner surface of a pipe according to claim 6, characterized in that: An adjusting motor (1707) is fixedly arranged at one end of the strip-shaped limiting shell (1701), and an output shaft of the adjusting motor (1707) extends into the interior of the strip-shaped limiting shell (1701) and is fixedly connected to the end of the adjusting screw rod (1702).

9. A high-efficiency magnetofluidic machining method for the inner surface of a pipe, characterized in that: The following steps are involved: S1: Start the spindle box, control the right frame to move in the positive direction of the Y axis, install one end of the pipe to be processed on the triangular chuck and clamp it; S2: Control the right frame to move in the negative direction of the Y axis until the left end of the lead screw is connected with the center hole of the chuck and the motor is automatically cut off, and the robot arm is controlled to clamp the pipe and calibrate the position so that the pipe and the lead screw are coaxial; S3: Turn on the screw motor to control the rotation of the screw and the feed rate of the Y axis. The spraying component and the grinding component move in the negative direction of the Y axis at the same time. The spraying component sprays the chemical polishing liquid in front to perform preliminary processing on the pipe fittings, and the grinding component rotates and feeds in the back. The abrasive and the inner wall of the pipe fittings are fully in contact and friction, and the pipe fittings are further processed. Then the motor is controlled to run in the opposite direction, and the grinding component and the spraying component move in the positive direction of the Y axis; S4: The grinding assembly performs secondary processing on the pipe fittings. At this time, the liquid storage tank is converted into a cleaning liquid supply, and the spraying component sprays the cleaning agent onto the inner wall of the pipe fitting to clean the processing waste remaining on the inner wall of the pipe fitting; S5: After the grinding assembly and the spraying component return to the starting point, control the right frame to move in the positive direction of the Y axis until the lead screw and the pipe are kept at a certain safe distance, and release the three-jaw chuck. Control the robot arm to hold the pipe and rotate 90° clockwise, pour the waste material and waste liquid into the bottom tank, and then rotate 90° in the direction of the pointer, and repeat the above steps until the target polishing effect is achieved.

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