Ultrasonic vibration pulse synergistic magnetic auxiliary jet flow polishing tool

By introducing ultrasonic vibration pulses and magnetic assisted technologies into jet polishing technology, combining gas injection and rotary jet modules, the limitations of existing jet polishing technology in efficiency, cost and material removal capabilities are solved, and a more efficient and lower-cost jet polishing effect is achieved.

CN120095726APending Publication Date: 2025-06-06CHINA JILIANG UNIV
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Patent Information

Application Number
CN202510368704.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2025-06-06

AI Technical Summary

Technical Problem

The existing jet polishing technology has limitations in efficiency, cost and material removal capabilities, especially for large-size processing, which is not effective in removing superhard materials or large margins, and requires other processes.

Method used

Ultrasonic vibration pulse coordinated magnetic auxiliary jet polishing tool is adopted, which includes ultrasonic vibration module, fixed module, gas injection module, rotary jet module and magnetic auxiliary module. Through the synergistic effect of ultrasonic vibration, gas injection, rotary jet and magnetic auxiliary technologies, the energy loss caused by collision between the abrasive and the nozzle cavity is reduced, and the cavitation effect is reduced through the principle of gas-blending corrosion reduction.

Benefits of technology

It improves the efficiency and material removal rate of jet polishing, reduces energy loss and cavitation damage, reduces cost, and is suitable for processing large-size and superhard materials.

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Abstract

The invention discloses an ultrasonic vibration pulse and magnetic auxiliary jet flow cooperated polishing tool which comprises an ultrasonic vibration module, a fixing module, a gas injection module, a rotary spraying module and a magnetic auxiliary module, and the ultrasonic vibration pulse and magnetic auxiliary jet flow cooperated polishing tool uses an ultrasonic modulation principle to form pulse jet flow; the distance between the tail end and an inner cavity opening of a nozzle is adjusted according to the size of an amplitude-change pole tail end assembly in the ultrasonic vibration module, and intensity control over pulse jet flow is achieved. The gas injection module is connected with one side of the amplitude-change pole, an air flow channel is formed in the amplitude-change pole, and the influence of cavitation erosion on the tail end of the amplitude-change pole is reduced through the air entrainment and cavitation erosion reduction principle; energy loss caused by collision of magnetic abrasives to the inner cavity of the nozzle is reduced through the magnetic force influence of the magnetic auxiliary module, and the jet intensity is enhanced; the rotary spraying module drives the nozzle to rotate, uniform jet beams are formed, and the overall polishing efficiency is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of abrasive micro jet polishing processing, and more specifically, to an ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool. Background Art

[0002] Jet polishing is a non-contact technology that uses high-speed fluid (usually containing abrasives) for surface processing. It is widely used in the manufacture of high-precision components. The technology avoids mechanical stress, reduces surface damage or microcracks, and is suitable for brittle materials. Fluid processing can cover grooves, microstructures and free-form surfaces that are difficult to reach with traditional tools, with high processing accuracy and low surface roughness. However, jet polishing has limitations in efficiency, cost and material removal capabilities. Its material removal rate is low, especially for large-size processing, which takes a long time. It is not effective for removing superhard materials or large excesses, and needs to be combined with other processes.

[0003] Ultrasonic-assisted jet polishing is a new precision machining method that combines ultrasonic vibration and jet polishing technology. It is mainly used for high-precision surface machining (such as optical components, semiconductor devices, etc.). Ultrasonic vibration enhances the cavitation effect and microjet impact, can remove materials more evenly, significantly reduce surface roughness, avoid scratches or sub-surface damage caused by traditional mechanical polishing, and is suitable for the machining of ultra-precision optical components. Ultrasonic vibration also accelerates the movement of abrasive particles, enhances the material removal rate (MRR), and shortens the machining cycle. For example, the invention patent with application number CN2019103060203030.X proposes an ultrasonic cavitation-assisted jet polishing system and polishing method. This method combines the principle of ultrasonic vibration to produce focal point cavitation, which effectively improves the efficiency of jet polishing. However, due to the cavitation bubbles generated by the cavitation effect, cavitation corrosion is caused to the inner wall of the nozzle and the jet cavity, causing damage to the surface of the material. The invention patent with application number CN202310026757.7 proposes an ultrasonic cavitation-assisted abrasive jet processing system and method. The invention uses the ultrasonic cavitation effect to improve the processing efficiency of the abrasive jet, but due to the presence of the abrasive, it impacts the flow channel wall and causes energy loss.

[0004] Therefore, it is a meaningful task to develop an ultrasonic vibration pulse assisted magnetic-assisted jet polishing tool to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to reduce the energy loss caused by abrasive particles impacting the wall surface and the damage caused by cavitation, and proposes an ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: an ultrasonic vibration pulse coordinated magnetic-assisted jet polishing tool, comprising an ultrasonic vibration module, a fixed module, a gas injection module, a rotary injection module and a magnetic-assisted module, wherein the ultrasonic vibration module is located above the fixed module, fixed to the jet sleeve through a flange, and the end passes through the jet sleeve, the conical cavity, the cylindrical cavity, the stator, the rotor, and the cylindrical sleeve in sequence and extends into the nozzle; the gas injection module connects the gas flow channel of the amplitude transformer and the gas injection port of the jet sleeve; the rotary injection module is located at the lower end of the fixed module, and is threadedly connected and fixed to the conical cavity in the fixed module through the stator in the rotary injection module; the magnetic-assisted module is located in the arc groove of the nozzle in the rotary injection module.

[0007] The ultrasonic vibration module includes an ultrasonic transducer, a horn, a gas flow channel and a horn end assembly, wherein the ultrasonic transducer is located at the uppermost end of the polishing tool, the top of the horn is threadedly connected to the bottom of the ultrasonic transducer, and is fixed by a jet sleeve and a flange of a fixing module; the gas flow channel is located inside the horn; the horn end assembly is located at the lower end of the horn and is connected by internal and external threads, and sealing rubber layers are provided at both ends to achieve static sealing, and the gas flow channel of the horn is communicated with the inside of the horn end assembly; evenly distributed pores are provided at the bottom end of the horn end assembly; air is injected into the gas module to fill the surface of the horn end with air, and the influence of cavitation is reduced by the principle of air entrainment and cavitation reduction; under different polishing requirements, the size of the horn end assembly can be replaced to adjust the distance between the end and the nozzle cavity outlet, and the intensity of the pulse jet can be controlled.

[0008] The fixing module includes a flange, a jet sleeve and a conical cavity. The flange is located above the jet sleeve and is connected by threads to fix the amplitude transformer. A sealing groove is provided inside to achieve static sealing. An abrasive flow inlet and a gas injection port are respectively provided at the left and right ends of the jet sleeve. The abrasive enters from the abrasive flow inlet and finally reaches the nozzle directly. The gas injection port facilitates the installation and fixation of the hose from the injection port. The conical cavity is located below the jet sleeve and is fixed by threads.

[0009] The gas injection module includes a quick-release connector, a hose and a hexagonal nut. The quick-release connector is connected to the gas flow channel through internal and external threads, and the other side is connected to one side of the hose; the hose is led out through the gas injection port and connected to the hexagonal nut through internal and external threads; the hexagonal nut is provided with four threaded holes, which are fixed one by one with the threaded holes near the gas injection port.

[0010] The rotary jet module includes a cylindrical cavity, a stator, a rotor, a cylindrical sleeve, a nozzle and a drainage device. The upper end of the cylindrical cavity and the upper end of the stator are connected to the lower end of the conical cavity by threads; the rotor is connected to the cylindrical sleeve by threads, and the principle of a hollow brushless motor is used to drive the lower part to rotate, and the speed is adjustable; the cylindrical sleeve and the nozzle are successively located below the rotor and connected by threads, and a sealing groove is provided between the inside of the cylindrical sleeve and the cylindrical cavity to achieve sealing; an arc groove is provided on one side of the nozzle for the installation of a magnetic auxiliary module; the drainage device is located between the nozzle and the cylindrical sleeve, and is fixed by a limit hole and a limit groove, and a sealing groove is also provided inside it to hold a sealing rubber ring, which can form a dynamic seal with the amplitude transformer.

[0011] The magnetic auxiliary module includes an arc cover, a fixed cover, a magnet fixing device, a fixed plate, an angle adjustment rod, a base, a guide bolt and a spring; the base is limited and fixed to the cylindrical rod through a through hole; the magnet fixing device is located above the base and is fixed to the pin of the base through a front end reaming hole; the angle adjustment rod is clamped on the back of the magnet fixing device, and the angle of the device can be adjusted by inserting the angle adjustment rod into different circular grooves; the spring is sleeved in the cylindrical rod; the fixed cover fixes the above device in the arc groove of the nozzle through a threaded connection; the guide bolt is installed in the threaded hole through a threaded connection, and the radial displacement of the base is achieved by the elastic force of the spring and the pre-tightening force of the guide bolt; a cylindrical rod is provided inside the arc cover; four evenly arranged circular grooves are provided above the base; a magnet groove is provided inside the magnet fixing device, and the magnetic block is fixed by a fixed plate; a track is provided on the inner side of the fixed cover to dock with the base.

[0012] Furthermore, the volume of the magnet groove decreases from top to bottom, and the corresponding magnetic force also decreases. The step-by-step reduction of the magnetic force is suitable for the conical cavity, which effectively reduces the energy loss caused by the collision between the magnetic abrasive and the cavity.

[0013] Furthermore, the nozzle is made of tungsten steel material as a whole, and the optimal outlet aperture is between 0.1 mm and 0.5 mm.

[0014] Furthermore, the drainage device 0406 is made of a cobalt-based alloy, which is resistant to high temperatures and wear; the upper end is in a sharp arc shape, so that the fluid can flow in quickly from the side gap.

[0015] The beneficial effects of the present invention are:

[0016] 1) The invention has reasonable design, simple structure, convenient use, low cost and easy installation.

[0017] 2) The internal structural design of the gas injection module and the horn of the present invention suppresses the corrosion caused by cavitation.

[0018] 3) The magnetic auxiliary module of the present invention reduces the energy loss caused by the collision between the magnetic abrasive and the inner cavity of the nozzle, strengthens the jet beam, and at the same time, the rotating injection module makes the jet beam more uniform, thereby improving the polishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of an ultrasonic vibration pulse coordinated magnetic-assisted jet polishing tool of the present invention.

[0020] Figure 2 It is an overall schematic diagram of the present invention.

[0021] Figure 3 Schematic diagram of the ultrasonic vibration module of the present invention.

[0022] Figure 4 It is a cross-sectional view of the horn of the present invention.

[0023] Figure 5 It is a cross-sectional view and an end view of the horn end assembly of the present invention.

[0024] Figure 6 It is a cross-sectional view of the fixing module of the present invention.

[0025] Figure 7 Schematic diagram of the gas injection module of the present invention.

[0026] Figure 8 It is a cross-sectional view of the rotary spray module of the present invention.

[0027] Fig. 9 It is an axial view of the nozzle of the present invention.

[0028] Fig.10 It is a top view of the nozzle of the present invention.

[0029] Fig.11 Schematic diagram of the drainage device of the present invention.

[0030] Fig.12 It is an internal schematic diagram of the magnetic auxiliary module of the present invention.

[0031] Fig.13 It is a schematic diagram of a fixed cover of the present invention.

[0032] Fig.14 It is a schematic diagram of a magnet fixing device of the present invention.

[0033] Fig.15 It is a schematic diagram of a base of the present invention.

[0034] Fig.16 It is a working principle diagram of the present invention.

[0035] In the figure, 01-ultrasonic vibration module, 02-fixed module, 03-gas injection module, 04-rotary injection module, 05-magnetic auxiliary module, 0101-ultrasonic transducer, 0102-horn, 010201-gas flow channel, 0103-horn end assembly, 0201-flange, 0202-jet sleeve, 020201-abrasive flow inlet, 020202-gas injection port, 0203-conical cavity, 0301-quick release connector, 0302-hose, 0303-hexagonal nut, 0401-cylindrical cavity, 0402-stator, 0403-rotor, 0404-cylindrical sleeve, 0405 -nozzle, 040501-arc groove, 040502-limiting hole, 0406-drainage device, 040601-limiting groove, 040602-sealing groove, 0501-arc cover, 050101-cylindrical rod, 0502-fixing cover, 050201-threaded hole, 050202-track, 0503-magnet fixing device, 050301-magnet groove, 050302-reaming hole, 0504-fixing plate, 0505-angle adjustment rod, 0506-base, 050601-circular groove, 050602-through hole, 050603-pin, 0507-guide bolt, 0508-spring. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present invention more clear, the following is a detailed description of the present invention in conjunction with specific examples and with reference to the attached drawings. Figures 1 to 16 The present invention is further described in detail. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0037] like Figure 1 , Figure 2 , Figure 6 and Figure 8As shown, the ultrasonic vibration pulse coordinated magnetic-assisted jet polishing tool described in the present invention includes an ultrasonic vibration module 01, a fixing module 02, a gas injection module 03, a rotary injection module 04 and a magnetic-assisted module 05. The ultrasonic vibration module 01 is located above the fixing module 02 and is fixed to the jet sleeve 0202 through a flange 0201. The end of the ultrasonic vibration module passes through the jet sleeve 0202, the conical cavity 0203, the cylindrical cavity 0401, the stator 0402, the rotor 0403, the cylindrical sleeve 05, and the rotor 0403. 0404 extends into the nozzle 0405; the gas injection module 03 connects the gas flow channel 010201 of the amplitude converter 0102 and the gas injection port 020202 of the jet sleeve 0202; the rotary injection module 04 is located at the lower end of the fixed module 02, and is threadedly connected and fixed with the conical cavity 0203 in the fixed module 02 through the stator 0402 in the rotary injection module 04; the magnetic auxiliary module 05 is located in the arc groove 040501 of the nozzle 0405 in the rotary injection module 04.

[0038] like Figures 3 to 5 As shown, the ultrasonic vibration module 01 includes an ultrasonic transducer 0101, an horn 0102, a gas flow channel 010201 and a horn end assembly 0103. The ultrasonic transducer 0101 is located at the uppermost end of the polishing tool. The top of the horn 0102 is threadedly connected to the bottom of the ultrasonic transducer 0101 and is fixed by a jet sleeve 0202 and a flange 0201 of the fixing module 02. The gas flow channel 010201 is located inside the horn 0102. The horn end assembly 0103 is located at the lower end of the horn 0102. Through internal and external threaded connection, sealing rubber layers are provided at both ends to achieve static sealing, the gas flow channel 010201 of the amplitude transformer 0102 is connected with the inside of the amplitude transformer end assembly 0103; the bottom end of the amplitude transformer end assembly 0103 is provided with evenly distributed air holes; air is injected into the gas module 03 to fill the surface of the amplitude transformer end with air, and the influence of cavitation is reduced by the principle of air entrainment and cavitation reduction; under different polishing requirements, the size of the amplitude transformer end assembly 0103 can be replaced to adjust the distance between the end and the inner cavity outlet of the nozzle 0405, so as to control the intensity of the pulse jet.

[0039] like Figure 6As shown, the fixing module 02 includes a flange 0201, a jet sleeve 0202 and a conical cavity 0203. The flange 0201 is located above the jet sleeve 0202 and is connected by threads to fix the amplitude transformer 0102. A sealing groove is provided inside to achieve static sealing. An abrasive inlet 020201 and a gas injection port 020202 are respectively provided at the left and right ends of the jet sleeve 0202. The abrasive enters from the abrasive inlet 020201 and finally reaches the nozzle directly. The gas injection port 020202 facilitates the installation and fixation of the hose from the injection port. The conical cavity 0203 is located below the jet sleeve 0202 and is fixed by threads.

[0040] like Figure 7 As shown, the gas injection module 03 includes a quick-release connector 0301, a hose 0302 and a hexagonal nut 0303. The quick-release connector 0301 is connected to the gas flow channel 010201 through internal and external threads, and the other side is connected to one side of the hose 0302; the hose 0302 is led out through the gas injection port 020202, and is connected to the hexagonal nut 0303 through internal and external threads; the hexagonal nut 0303 is provided with four threaded holes, which are fixed one by one corresponding to the threaded holes near the gas injection port 020202.

[0041] like Figures 8 to 11 As shown, the rotary injection module 04 includes a cylindrical cavity 0401, a stator 0402, a rotor 0403, a cylindrical sleeve 0404, a nozzle 0405 and a drainage device 0406. The upper end of the cylindrical cavity 0401 and the upper end of the stator 0402 are connected to the lower end of the conical cavity 0203 by threads; the rotor 0403 is connected to the cylindrical sleeve 0404 by threads, and the hollow brushless motor principle is used to drive the lower part to rotate, and the speed is adjustable; the cylindrical sleeve 0404 and the nozzle 0405 are located in the rotor 0403 and the lower part of the cylindrical sleeve 0404 are connected to the rotor 0403 by threads, and the speed is adjustable; the cylindrical sleeve 0404 and the nozzle 0405 are located in the rotor 0403 and the lower part of the cylindrical sleeve 0404 are connected to the rotor 0403 and the lower part of the cylindrical sleeve 0404. The sub-0403 is connected by threads at the bottom, and a sealing groove is provided between the inside of the cylindrical sleeve 0404 and the cylindrical cavity 0401 to achieve sealing; an arc groove 040501 is provided on one side of the nozzle 0405 for installing the module 05; the drainage device 0406 is located between the nozzle 0405 and the cylindrical sleeve 0404, and is fixed by a limiting hole 040502 and a limiting groove 040601, and a sealing groove 040602 is also provided inside to place a sealing rubber ring, which can form a dynamic seal with the amplitude transformer 0102.

[0042] like Figures 12 to 15As shown, the magnetic auxiliary module 05 includes an arc cover 0501, a fixed cover 0502, a magnet fixing device 0503, a fixed plate 0504, an angle adjustment rod 0505, a base 0506, a guide bolt 0507 and a spring 0508; the base 0506 is fixed with the cylindrical rod 050101 through a through hole 050602; the magnet fixing device 0503 is located above the base 0506, and is fixed with the pin 050603 of the base 0506 through a front end reaming hole 050302; the angle adjustment rod 0505 is clamped on the back of the magnet fixing device 0503, and the angle of the device can be adjusted by inserting the angle adjustment rod 0505 into different positions of the circular groove 050601; the spring 0508 is sleeved on the circular groove 050601. The column rod 050101 is inside; the fixed cover 0502 fixes the above device in the arc groove 040501 of the nozzle 0405 by threaded connection; the guide bolt 0507 is installed in the threaded hole 050201 by threaded connection, and the radial displacement of the base 0506 is achieved by the elastic force of the spring 0508 and the pre-tightening force of the guide bolt 0507; a cylindrical rod 050101 is arranged inside the arc cover 0501; four evenly arranged circular grooves 050601 are arranged above the base 0506; a magnet groove 050301 is arranged inside the magnet fixing device 0503, and the magnetic block is fixed by the fixing plate 0504; a track 050202 is arranged on the inner side of the fixed cover 0502, which is docked with the base 0506.

[0043] Further reading Fig.14 The volume of the magnet groove 050301 decreases from top to bottom, and the corresponding magnetic force also decreases. The step-by-step reduction of the magnetic force is suitable for the conical cavity, which effectively reduces the energy loss caused by the collision between the magnetic abrasive and the cavity.

[0044] In the present invention, the nozzle 0405 is made of tungsten steel material as a whole, and the optimal outlet aperture thereof is between 0.1 mm and 0.5 mm.

[0045] In the present invention, the drainage device 0406 is made of a cobalt-based alloy, which is resistant to high temperature and wear; the upper end is in a sharp arc shape, so that the fluid can flow in quickly from the side gap.

[0046] Specific implementation examples Fig.16As shown, the magnetic abrasive enters from the abrasive inlet 020201, forms a single-sided jet beam through the drainage device 0406, and reaches the nozzle 0405 directly; the amplitude transformer 0102 and the ultrasonic transducer 0101 in the ultrasonic vibration module 01 generate high-frequency vibration to form a pulse jet; the outside air enters the gas flow channel 010201 in the amplitude transformer 0102 through the gas injection module 03, and finally reaches the amplitude transformer end assembly 0103 directly, so that the lower end surface is covered with gas, reducing the impact of cavitation. Before polishing, the magnet fixture 0503 can be adjusted according to the different conical inner cavities of the nozzle 0405, and the distance between the magnet fixture 0503 and the wall surface can be adjusted by rotating the guide bolt 0507; the angle adjustment can be achieved by adjusting the angle adjustment rod 0505 to fit into different positions of the circular groove 050601; the energy loss caused by the collision of the magnetic abrasive with the conical inner cavity of the nozzle 0405 is reduced by relying on the magnetic attraction effect, so as to ensure the strength of the jet beam; the rotor 0403 of the rotating injection module 04 drives the lower part to rotate at a high speed, so that the single-sided jet beam can be evenly ejected to form a higher intensity jet.

[0047] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. An ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool, characterized in that: It comprises an ultrasonic vibration module (01), a fixing module (02), a gas injection module (03), a rotary injection module (04) and a magnetic auxiliary module (05), wherein the ultrasonic vibration module (01) is located above the fixing module (02), fixed to a jet sleeve (0202) via a flange (0201), and the end thereof sequentially passes through the jet sleeve (0202), a conical cavity (0203), a cylindrical cavity (0401), a stator (0402), a rotor (0403), and a cylindrical sleeve (0404) and extends into a nozzle (0405); The gas injection module (03) connects the gas flow channel (010201) of the amplitude change rod (0102) and the gas injection port (020202) of the jet sleeve (0202); the rotary jet module (04) is located at the lower end of the fixed module (02), and is threadedly connected and fixed to the conical cavity (0203) in the fixed module (02) through the stator (0402) in the rotary jet module (04); the magnetic auxiliary module (05) is located in the arc groove (040501) of the nozzle (0405) in the rotary jet module (04).

2. The ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool according to claim 1, characterized in that: The ultrasonic vibration module (01) comprises an ultrasonic transducer (0101), a horn (0102), a gas flow channel (010201) and a horn end assembly (0103); the ultrasonic transducer (0101) is located at the uppermost end of the polishing tool; the top of the horn (0102) is threadedly connected to the bottom of the ultrasonic transducer (0101) and is fixed by a jet sleeve (0202) and a flange (0201) of the fixing module (02); the gas flow channel (010201) is located inside the horn (0102); the horn end assembly (0103) is located at the horn (0102); 102) The lower end is connected by internal and external threads, and sealing rubber layers are provided at both ends to achieve static sealing. The gas flow channel (010201) of the amplitude transformer (0102) is connected to the inside of the amplitude transformer end assembly (0103); the bottom end of the amplitude transformer end assembly (0103) is provided with evenly distributed air holes; air is injected into the gas injection module (03) to fill the surface of the amplitude transformer end with air, and the influence of cavitation is reduced by the principle of air entrainment and cavitation reduction; under different polishing requirements, the size of the amplitude transformer end assembly (0103) can be replaced to adjust the distance between the end and the inner cavity outlet of the nozzle (0405) to control the intensity of the pulse jet.

3. The ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool according to claim 1, characterized in that: The fixing module (02) comprises a flange (0201), a jet sleeve (0202) and a conical cavity (0203); the flange (0201) is located above the jet sleeve (0202) and is connected by threads to fix the amplitude change rod (0102); a sealing groove is provided inside to achieve static sealing; the left and right ends of the jet sleeve (0202) are respectively provided with an abrasive inlet (020201) and a gas injection port (020202); the abrasive enters from the abrasive inlet (020201) and finally reaches the nozzle directly; the gas injection port (020202) facilitates the hose to be led out from the injection port for installation and fixation; the conical cavity (0203) is located below the jet sleeve (0202) and is fixed by threads.

4. The ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool according to claim 1, characterized in that: The gas injection module (03) comprises a quick-release connector (0301), a hose (0302) and a hexagonal nut (0303); the quick-release connector (0301) is connected to the gas flow channel (010201) via internal and external threads, and the other side is connected to one side of the hose (0302); the hose (0302) is led out through the gas injection port (020202) and connected to the hexagonal nut (0303) via internal and external threads; the hexagonal nut (0303) is provided with four threaded holes, which are fixed in one-to-one correspondence with the threaded holes near the gas injection port (020202).

5. The ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool according to claim 1, characterized in that: The rotary jet module (04) comprises a cylindrical cavity (0401), a stator (0402), a rotor (0403), a cylindrical sleeve (0404), a nozzle (0405) and a drainage device (0406); the upper end of the cylindrical cavity (0401) and the upper end of the stator (0402) are connected to the lower end of the conical cavity (0203) by threads; the rotor (0403) and the cylindrical sleeve (0404) are connected by threads, and the principle of a hollow brushless motor is used to drive the lower part to rotate, and the speed is adjustable; the cylindrical sleeve (0404) and the nozzle (0405) are sequentially located on the rotor (0403) is connected by threads at the bottom, and a sealing groove is provided between the inside of the cylindrical sleeve (0404) and the cylindrical cavity (0401) to achieve sealing; an arc groove (040501) is provided on one side of the nozzle (0405) for installing the module (05); the drainage device (0406) is located between the nozzle (0405) and the cylindrical sleeve (0404), and is fixed by a limiting hole (040502) and a limiting groove (040601), and a sealing groove (040602) is also provided inside to place a sealing rubber ring, which can form a dynamic seal with the amplitude change rod (0102).

6. The ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool according to claim 1, characterized in that: The magnetic auxiliary module (05) comprises an arc-shaped cover (0501), a fixed cover (0502), a magnet fixing device (0503), a fixed plate (0504), an angle adjustment rod (0505), a base (0506), a guide bolt (0507) and a spring (0508); the base (0506) is fixed to a cylindrical rod (050101) through a through hole (050602); the magnet fixing device (0503) is located above the base (0506) and is fixed to a pin (050603) of the base (0506) through a front end reaming hole (050302); the angle adjustment rod (0505) is clamped on the back of the magnet fixing device (0503), and the angle of the device can be adjusted by snapping the angle adjustment rod (0505) into different circular grooves (050601); the spring (0508) is sleeved In the cylindrical rod (050101); the fixed cover (0502) fixes the above device in the arc groove (040501) of the nozzle (0405) through a threaded connection; the guide bolt (0507) is installed in the threaded hole (050201) through a threaded connection, and the radial displacement of the base (0506) is achieved by the elastic force of the spring (0508) and the pre-tightening force of the guide bolt (0507); a cylindrical rod (050101) is provided inside the arc cover (0501); four evenly arranged circular grooves (050601) are provided above the base (0506); a magnet groove (050301) is provided inside the magnet fixing device (0503), and the magnetic block is fixed by a fixing plate (0504); a track (050202) is provided on the inner side of the fixed cover (0502) to dock with the base (0506).

7. The ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool according to claim 5, characterized in that: The nozzle (0405) is made of tungsten steel material as a whole, and the optimal outlet aperture is between 0.1 mm and 0.5 mm.

8. The ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool according to claim 5, characterized in that: The drainage device (0406) is made of a cobalt-based alloy, which is resistant to high temperatures and wear; the upper end is in a sharp arc shape, so that the fluid can flow in quickly from the side gap.

9. The ultrasonic vibration pulse coordinated magnetic assisted jet polishing tool according to claim 6, characterized in that: The volume of the magnet groove (050301) decreases from top to bottom, and the corresponding magnetic force also decreases. The step-by-step reduction of the magnetic force is suitable for the conical cavity, which effectively reduces the energy loss caused by the collision between the magnetic abrasive and the cavity.

Citation Information

Patent Citations

  • Ultrasonic cavitation assisted abrasive jet machining system and method

    CN116197827A