A composite processing device of eddy current internal cooling and ultrasonic vibration

Abstract

The present invention discloses a composite machining device for eddy current internal cooling and ultrasonic vibration, comprising a machine tool, a vortex tube, an annular transducer, a hollow horn, a heat-insulating structure at the middle end of a tool shank, a temperature regulating valve, a hollow internal cooling tool, an ultrasonic generator, and a wireless transmission structure. A through hole is provided at the center of the machine tool's electric spindle, connected to a hollow rivet at the upper end of the tool shank. The tool shank is externally connected to a tool shank fixing frame, the lower end of which is provided with a wireless transmission upper plate. The tool shank upper end cap is connected to the heat-insulating tube at the middle end of the tool shank. Three annular transducers and an eddy current tube are provided at the large end of the hollow horn. The hollow internal cooling tool is connected to the hollow horn via a nut cap. The heat-insulating tube at the middle end of the tool shank is connected to the upper end cap of the tool shank and to the large end of the hollow horn at the lower end. A composite machining method for simultaneously performing eddy current internal cooling and ultrasonic-assisted drilling is also provided. The composite machining device for eddy current internal cooling and ultrasonic vibration reduces tool wear caused by cutting heat, improving workpiece surface quality and machining efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control precision machining, and in particular to a composite machining device of eddy current internal cooling and ultrasonic vibration. Background Art

[0002] During traditional drilling, cutting heat easily accumulates, exacerbating tool wear and affecting the surface quality of the workpiece hole wall. At the same time, chips are difficult to discharge during the drilling process, causing tool breakage and secondary damage to the workpiece hole wall surface, seriously affecting the drilling quality and tool life. In addition, compared with traditional drilling, existing ultrasonic vibration toolholders can effectively reduce tool wear, reduce cutting force and cutting heat, and improve the surface quality of the hole wall through ultrasonic vibration-assisted drilling. However, the accumulation of heat from the high-frequency vibration of the amplitude rod and transducer for a long time will cause the temperature of the entire toolholder to rise, affecting the drilling accuracy and vibration quality of the entire ultrasonic vibration toolholder. In severe cases, it can cause a short circuit inside the ultrasonic vibration toolholder. Existing ultrasonic vibration toolholders generally have the problems of short processing time, severe internal heating of the toolholder, and inability to achieve internal cooling. Summary of the Invention

[0003] The present invention provides a eddy current internal cooling and ultrasonic vibration composite processing device to overcome the above technical problems.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A eddy current internal cooling and ultrasonic vibration composite machining device comprises a tool holder with eddy current internal cooling and ultrasonic vibration, a tool holder fixing bracket, and a hollow tool with internal cooling; the top end of the tool holder fixing bracket is provided with a clamping structure, through which the tool holder fixing bracket is fixedly connected to the hollow electric spindle of the machine tool; the bottom end of the tool holder fixing bracket is provided with a wireless transmission upper plate; the wireless transmission upper plate is connected to an operating device via an aviation joint provided on the side wall of the tool holder fixing bracket;

[0006] The top end of the hollow electric spindle of the machine tool is connected to the air compressor, and the bottom end of the hollow electric spindle of the machine tool is connected to the top end of the hollow rivet on the tool handle; the tool handle includes an upper end cover of the tool handle, a heat insulation tube at the middle end of the tool handle, a hollow amplitude rod, an eddy current internal cooling structure and an annular transducer; the upper end cover of the tool handle is fixedly mounted on the top end of the heat insulation tube at the middle end of the tool handle, and the upper end cover of the tool handle is provided with a plurality of heat dissipation holes; the bottom end of the hollow rivet is connected to the eddy current internal cooling structure through a high-pressure hollow tube penetrating the heat insulation tube at the middle end of the tool handle; the compressed gas of the air compressor is converted into cold / hot gas and diverted through the eddy current internal cooling structure;

[0007] A fixed frame is provided at the top of the hollow amplitude variable rod, and the fixed frame is provided with a fixed mounting groove and a wireless transmission lower plate; the eddy current internal cooling structure and the annular transducer are fixed in the fixed mounting groove, and the wireless transmission lower plate and the annular transducer are connected by a wire, and the top of the eddy current internal cooling structure is connected to the insulation tube at the middle end of the tool handle, and the bottom end of the eddy current internal cooling structure is connected to the center hole at the top end of the hollow amplitude variable rod, and a nut pressure cap is provided at the bottom end of the hollow amplitude variable rod, and the hollow internal cooling tool is connected to the hollow amplitude variable rod through the nut pressure cap.

[0008] Furthermore, the vortex internal cooling structure includes a hot end tube, a cold end tube, a vortex tube structure and a temperature control valve structure; the temperature control valve structure is arranged inside the top end of the hot end tube, the bottom end of the hot end tube is connected to the top end of the vortex tube structure, the bottom end of the vortex tube structure is connected to the top end of the cold end tube, and the bottom end of the cold end tube is connected to the center hole of the top end of the hollow horn;

[0009] A spiral groove structure is provided inside the vortex tube structure, and the two ends of the spiral groove structure are respectively connected to the hot end tube and the cold end tube to form a hollow structure. A connecting hole structure is provided on the side wall of the vortex tube structure, and one end of the high-pressure hollow tube is connected to the vortex tube structure through the connecting hole structure.

[0010] Furthermore, the temperature control valve structure includes a conical airflow separation structure, a cylindrical structure, and a threaded end structure connected in sequence from bottom to top in a vertical direction, and the temperature control valve structure is connected to the inner wall of the hot end pipe through the threaded end structure;

[0011] The cylindrical structure is provided with a plurality of air inlet structures, and the air inlet structures are interconnected; the center of the threaded end structure is provided with an air outlet structure;

[0012] The conical airflow separation structure diverts the high-temperature gas generated by the vortex inner cooling structure. The conical airflow separation structure and the inner wall of the hot end tube form an airflow channel, and the airflow channel is connected to the air inlet structure and the air outlet structure in sequence.

[0013] Furthermore, the annular transducer is fixed to the top end of the hollow horn and is evenly distributed on the outside of the cold end tube;

[0014] Each of the annular transducers comprises an annular coil and an upper end cover, an insulating cover, and a magnetostrictive tube connected in sequence by insulating bolts to form an integrated structure, and a plurality of coil connection holes are opened in the circumference of the integrated structure;

[0015] The annular coil is arranged on the outside of the integrated structure through the coil connection hole.

[0016] Furthermore, both ends of the heat-insulating tube at the middle end of the knife handle are provided with internal threads, and a first annular heat-insulating through hole and a second annular heat-insulating hole are provided inside the heat-insulating tube at the middle end of the knife handle;

[0017] One end of the high-pressure hollow tube is connected to the hollow rivet fixed on the upper end cover of the handle, and the other end of the high-pressure hollow tube passes through the first annular heat-insulating through hole and is connected to the connecting hole structure of the eddy current inner cooling structure;

[0018] A dustproof tube is provided at the top end of the hot end tube of the eddy current internal cooling structure; the dustproof tube is connected to the insulation tube at the middle end of the shank through a second annular insulation hole.

[0019] Furthermore, the hollow internally-cooled tool is provided with cooling holes.

[0020] Beneficial effects: The present invention provides a composite processing device of eddy current internal cooling and ultrasonic vibration. The eddy current internal cooling structure and the annular transducer are used to make the hollow internal cooling tool generate high-frequency vibration, which greatly reduces the cutting force and cutting heat during the cutting process. The high-frequency ultrasonic vibration promotes the discharge of chips. At the same time, the eddy current internal cooling structure cools the tool during the drilling process, effectively reduces the wear of the tool, increases the life of the tool, reduces the processing damage caused by tool wear, improves the processing efficiency and surface quality, reduces the cost, and realizes high-efficiency and high-quality processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is a schematic structural diagram of the eddy current internal cooling and ultrasonic vibration composite processing device of the present invention;

[0023] Figure 2 Schematic diagram of the tool holder structure with eddy current internal cooling and ultrasonic vibration in this embodiment;

[0024] Figure 3 Schematic diagram of the connection between the eddy current inner cooling structure and the hollow horn structure in this embodiment;

[0025] Figure 4 This is a schematic diagram of the eddy current inner cooling structure in this embodiment;

[0026] Figure 5 for Figure 4 Cross-section in the middle AA direction;

[0027] Figure 6 Schematic diagram of the structure of the temperature control valve in this embodiment;

[0028] Figure 7 Schematic diagram of the structure of the ring transducer in this embodiment;

[0029] Figure 8 Schematic diagram of the structure of the upper end cover of the handle in this embodiment;

[0030] Figure 9 This is a schematic diagram of the heat insulation tube structure at the middle end of the handle in this embodiment;

[0031] Figure 10 This is a schematic diagram of the hollow inner-cooling tool structure in this embodiment.

[0032] In the figure: 1. Tool handle; 11. Hollow rivet; 12. Tool handle upper end cover; 121. Heat dissipation hole; 13. Heat insulation tube at the middle end of the tool handle; 131. Internal thread; 132. First annular heat insulation hole; 133. Second annular heat insulation hole; 14. Hollow amplitude transformer; 141. Fixed frame; 1411. Fixed mounting slot; 1412. Wireless transmission lower plate; 15. Eddy current internal cooling structure; 151. Hot end tube; 152. Cold end tube; 153. Eddy current tube structure; 1531. Spiral groove structure; 154. Temperature control valve structure; 1541. Conical air flow separation structure; 1542. Cylindrical structure; 15421. Air inlet structure; 1543. Threaded end structure; 15431. Air outlet structure; 155. Dustproof tube; 16. Ring transducer; 161. Ring coil; 162. Insulation bolt; 163. Upper end cover; 164. Insulation cover; 165. Magnetostrictive tube; 166. Coil connection hole; 2. Tool holder fixing bracket; 21. Clamping structure; 22. Wireless transmission upper plate; 23. Aviation connector; 3. Hollow internally cooled tool; 31. Cooling hole; 4. Hollow electric spindle of machine tool; 5. Operating device; 50. Cabinet; 51. Air compressor control panel; 52. Ultrasonic generator; 53. High-pressure air pipe interface; 54. Operating system; 6. Nut cap. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] This embodiment provides a eddy current internal cooling and ultrasonic vibration composite processing device, such as Figures 1 to 2As shown, it includes a tool holder 1 with eddy current internal cooling and ultrasonic vibration, a tool holder fixing frame 2 and a hollow internal cooling tool 3; the top of the tool holder fixing frame 2 is provided with a clamping structure 21, and the tool holder fixing frame 2 is fixedly connected to the hollow electric spindle 4 of the machine tool through the clamping structure 21; the bottom end of the tool holder fixing frame 2 is provided with a wireless transmission upper disk 22; the wireless transmission upper disk 22 is connected to the operating device 5 through an aviation joint 23 arranged on the side wall of the tool holder fixing frame 2; wherein, the clamping mechanism 21 in the tool holder fixing frame 2 is horizontally arranged with the wireless transmission upper disk, and the tool holder fixing frame 2 is a hollow structure, and the bottom end of the tool holder fixing frame 2 is provided with a mounting groove for mounting the wireless transmission upper disk 22 , the connecting wire of the wireless transmission upper disk is connected to the aviation plug through the hollow structure; specifically, the operating device 5 includes at least a cabinet 50 and an air compressor, an air compressor control panel 51, an ultrasonic generator 52 and an operating system 54 arranged on the cabinet 50, and a high-pressure air pipe interface 53 is reserved on the side wall of the cabinet 50; the air compressor is connected to the hollow electric spindle 4 of the machine tool through the high-pressure air pipe interface 53; the operating system 54 is used to control the operation of the air compressor, the air compressor control panel 51 and the ultrasonic generator 52; wherein, the control program and control implementation method of the operating system 54 are existing well-known technical means, which are not the invention of this application and will not be repeated here;

[0035] The top end of the hollow electric spindle 4 of the machine tool is connected to the air compressor, and the bottom end of the hollow electric spindle 4 of the machine tool is connected to the top end of the hollow rivet 11 on the tool handle 1; Figure 3 As shown, the handle 1 includes a handle upper end cover 12, a handle middle end insulation tube 13, a hollow amplitude rod 14, an eddy current internal cooling structure 15 and an annular transducer 16; the handle upper end cover 12 is fixedly installed on the top of the handle middle end insulation tube 13, as shown in FIG. Figure 8As shown, the upper end cover 12 of the knife handle is provided with a plurality of heat dissipation holes 121; the hollow rivet 11 is fixedly installed on the top of the upper end cover 12 of the knife handle and is connected with the inside of the upper end cover 12 of the knife handle; the bottom end of the hollow rivet 11 is connected to the eddy current inner cooling structure 15 through the high-pressure hollow tube 10 through the heat insulation tube 13 at the middle end of the knife handle; the compressed gas of the air compressor is generated into cold / hot gas and diverted through the eddy current inner cooling structure 15; the top of the hollow amplitude rod 14 is provided with a fixed frame 141, and the fixed frame 141 is provided with a fixed installation slot 1411 and a wireless transmission lower plate 1412; preferably, the fixed installation The top of the mounting groove 1411 is 0.5 mm away from the bottom end of the tool handle fixing frame 2; the eddy current internal cooling structure 15 and the annular transducer 16 are fixed in the fixed mounting groove 1411, the wireless transmission lower plate 1412 is electrically connected to the annular transducer 16, and the top of the eddy current internal cooling structure 15 is connected to the insulation tube 13 at the middle end of the tool handle, and the bottom end of the eddy current internal cooling structure 15 is connected to the center hole at the top end of the hollow amplitude rod 14, and a nut pressure cap 6 is provided at the bottom end of the hollow amplitude rod 14, and the hollow internal cooling tool 3 is connected to the hollow amplitude rod 14 through the nut pressure cap 6.

[0036] The present invention discloses a composite processing device of eddy current internal cooling and ultrasonic vibration. The eddy current internal cooling structure and the annular transducer enable the hollow internal cooling tool to generate high-frequency vibration, which greatly reduces the cutting force and cutting heat during the cutting process. The high-frequency ultrasonic vibration promotes the discharge of chips. At the same time, the eddy current internal cooling structure cools the tool during the drilling process, effectively reducing tool wear, increasing the life of the tool, reducing processing damage caused by tool wear, improving processing efficiency and surface quality, reducing costs, and achieving high-efficiency and high-quality processing. The composite processing device of eddy current internal cooling and ultrasonic vibration is a device that can enable the hollow internal cooling tool to generate high-frequency vibration and reduce cutting heat. During the cutting process, the tool can achieve intermittent cutting and easy chip discharge. At the same time, the composite processing method of eddy current internal cooling and ultrasonic vibration can effectively reduce cutting force, reduce tool wear, improve processing efficiency, and improve the surface quality of the workpiece.

[0037] In a specific embodiment, Figures 4 and 5As shown, the vortex internal cooling structure 15 includes a hot end tube 151, a cold end tube 152, a vortex tube structure 153 and a temperature control valve structure 154; the temperature control valve structure 154 is arranged inside the top of the hot end tube 151, the bottom end of the hot end tube 151 is connected to the top of the vortex tube structure 153, the bottom end of the vortex tube structure 153 is connected to the top of the cold end tube 152, and the bottom end of the cold end tube 152 is connected to the center hole at the top of the hollow amplitude rod 14; a spiral groove structure 1531 is provided inside the vortex tube structure 153, and the two ends of the spiral groove structure 1531 are respectively connected to the hot end tube 151 and the cold end tube 152 to form a hollow structure, and a connecting hole structure is opened on the side wall of the vortex tube structure 153, and one end of the high-pressure hollow tube 10 is connected to the vortex tube structure 153 through the connecting hole structure. The high-pressure gas generates a vortex when passing through the spiral groove structure 1531 inside the vortex tube structure 153. The rotation speed at the center of the high-pressure gas is faster, which converts the internal energy of the gas into kinetic energy, gradually reduces the temperature at the center, and gradually increases the external temperature of the high-pressure gas. The external high-pressure hot gas flows to the temperature control valve structure 154 through the hot end tube 151, and then is discharged from the heat dissipation hole 121 on the upper end cover 12 of the tool handle through the dustproof tube 155. The high-pressure cold gas at the center of the spiral groove structure 1531 is discharged from the cold end tube 152 into the interior of the hollow amplitude rod 14 to achieve cooling of the tool.

[0038] In a specific embodiment, Figure 6 As shown, the temperature control valve structure 154 includes a conical airflow separation structure 1541, a cylindrical structure 1542 and a threaded end structure 1543 connected in sequence from bottom to top in the vertical direction. The temperature control valve structure 154 is connected to the inner wall of the hot end tube 151 through the threaded end structure 1543; the cylindrical structure 1542 is evenly distributed with a plurality of air inlet structures 15421, and each of the air inlet structures 15421 is connected; the center position of the threaded end structure 1543 is provided with an air outlet structure 15431; the conical airflow separation structure A petal-shaped structure is provided at the bottom of 1541, which is used to divert the high-temperature gas generated by the vortex internal cooling structure 15 to reduce the noise generated at the hot end pipe mouth; the conical airflow separation structure 1541 and the inner wall of the hot end pipe 151 form an airflow channel, and the airflow channel is connected to the air inlet structure 15421 and the air outlet structure 15431 in sequence. The high-temperature gas enters the cavity structure at the top end of the insulation tube 13 at the middle end of the handle through the dustproof tube 155 from the air outlet structure 15431, and is then discharged through the heat dissipation holes of the upper end cover 12 of the handle.

[0039] In a specific embodiment, Figure 7As shown, the annular transducer 16 is fixed to the top of the hollow horn 14 and is evenly distributed on the outside of the cold end tube 152; the hollow horn 14 is a conical structure, and the diameter of the circle on which the top surface of the hollow horn 14 is located is larger than the diameter of the circle on which the bottom surface is located; preferably, three annular transducers 16 are evenly distributed and fixed at the top of the hollow horn 14 at an angle of 120°, and the three annular transducers 16 are arranged in parallel and connected to the wireless transmission lower plate through a wire; each annular transducer 16 includes an annular coil 161 and an upper end cover 163, an insulating cover 164 and a magnetostrictive tube 165 connected in sequence by insulating bolts 162 to form an integrated structure, and a plurality of coil connection holes 166 are opened in the circumference of the integrated structure; the annular coil 161 is arranged on the outside of the integrated structure through the coil connection hole 166.

[0040] In a specific embodiment, Figure 9 As shown, the top and bottom ends of the heat-insulating tube 13 at the middle end of the knife handle are respectively provided with cavity structures, and both ends of the heat-insulating tube 13 at the middle end of the knife handle are provided with internal threads 131, and the top end of the heat-insulating tube 13 at the middle end of the knife handle is threadedly connected to the upper end cover 12 of the knife handle to form a clamping end, and the clamping end is supported by the annular structure at the bottom end of the knife handle fixing frame 2, and the knife handle is movably connected to the bottom end of the knife handle fixing frame 2; the cavity structure depth of the top end of the heat-insulating tube 13 at the middle end of the knife handle is greater than the cavity structure depth at the bottom end, which is used for throttling when high-temperature gas is discharged, and the outer diameter of the heat-insulating tube 13 at the middle end of the knife handle is adapted to the inner diameter of the fixed installation groove 1411, so that the heat-insulating tube 13 at the middle end of the knife handle is sealed and connected to the fixed frame 141 to prevent cooling gas The body overflows, causing the cutting heat of the tool to be unable to be cooled; and a first annular thermal insulation through hole 132 and a second annular thermal insulation hole 133 are provided on the internal partition of the insulation tube 13 at the middle end of the handle; one end of the high-pressure hollow tube 10 is connected to the hollow rivet 11 fixed on the upper end cover 12 of the handle, and the other end of the high-pressure hollow tube 10 passes through the first annular thermal insulation through hole 132 and is connected to the connection hole structure of the vortex internal cooling structure 15; and a dustproof tube 155 is provided at the top of the hot end tube 151 of the vortex internal cooling structure 15, which is used to prevent the hot end tube 151 from being blocked, causing difficulty in discharging high-temperature gas and affecting use. The dustproof tube 155 is connected to the insulation tube 13 at the middle end of the handle through the second annular thermal insulation hole 133.

[0041] In a specific embodiment, Figure 10 As shown, the hollow internally-cooled tool 3 is provided with a cooling hole 31, and the hollow internally-cooled tool 3 is connected to the hollow amplitude variable rod 14 through the nut pressure cap 6. During the cutting process of the hollow internally-cooled tool 3, the high-pressure cold gas in the hollow amplitude variable rod 14 can be discharged through the cooling hole 31 of the hollow internally-cooled tool 3, which effectively reduces the heat generated during the tool cutting process, reduces the tool wear caused by cutting heat, and improves the surface quality and processing efficiency of the workpiece.

[0042] Working principle: The ultrasonic generator 52 is controlled by the operating device 5 to provide electrical energy to the wireless transmission upper disk 22. After receiving the electrical signal from the wireless transmission upper disk 22, the wireless transmission lower disk 1412 transmits electrical energy and voltage of corresponding frequency to the three annular transducers 16, and utilizes the magnetostrictive effect to convert electrical energy into mechanical energy, driving the vibration of the hollow amplitude rod 14, thereby realizing high-frequency vibration of the hollow internally cooled tool 3. The air compressor is turned on and off by controlling the air compressor control panel 51 of the operating device 5, and the high-pressure gas enters the vortex tube structure 153 through the high-pressure hollow tube 10, and the high-speed rotating gas is separated into low-temperature gas and high-temperature gas. The high-temperature gas is discharged from the hot end tube 151, and the low-temperature gas flows from the cold end tube 152 to the hollow amplitude rod 14 and the hollow internal cooling tool 3 in sequence, thereby realizing vortex internal cooling and high-frequency ultrasonic vibration of the hollow internal cooling tool 3. The high-frequency ultrasonic vibration promotes the discharge of chips. At the same time, the vortex internal cooling structure cools the tool during the drilling process, effectively reduces tool wear, increases tool life, reduces processing damage caused by tool wear, improves processing efficiency and surface quality, reduces costs, and realizes high-efficiency and high-quality processing.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A eddy current internal cooling and ultrasonic vibration composite processing device, characterized in that: The invention comprises a tool holder (1) with eddy current internal cooling and ultrasonic vibration, a tool holder fixing frame (2), and a hollow internal cooling tool (3); a clamping structure (21) is provided at the top end of the tool holder fixing frame (2), and the tool holder fixing frame (2) is fixedly connected to a hollow electric spindle (4) of a machine tool through the clamping structure (21); a wireless transmission upper disk (22) is provided at the bottom end of the tool holder fixing frame (2); the wireless transmission upper disk (22) is connected to an operating device (5) through an aviation joint (23) provided on the side wall of the tool holder fixing frame (2); The top end of the hollow electric spindle (4) of the machine tool is connected to the air compressor, and the bottom end of the hollow electric spindle (4) of the machine tool is connected to the top end of the hollow rivet (11) on the tool handle (1); the tool handle (1) includes a tool handle upper end cover (12), a tool handle middle end insulation tube (13), a hollow amplitude change rod (14), an eddy current internal cooling structure (15) and an annular transducer (16); the tool handle upper end cover (12) is fixedly mounted on the top end of the tool handle middle end insulation tube (13), and the tool handle upper end cover (12) is provided with a plurality of heat dissipation holes (121); the bottom end of the hollow rivet (11) passes through the tool handle middle end insulation tube (13) through the high-pressure hollow tube (10) and is connected to the eddy current internal cooling structure (15); the compressed gas of the air compressor is converted into cold / hot gas through the eddy current internal cooling structure (15) and diverted; The vortex internal cooling structure (15) includes a hot end tube (151), a cold end tube (152), a vortex tube structure (153) and a temperature control valve structure (154); the temperature control valve structure (154) is arranged inside the top end of the hot end tube (151), the bottom end of the hot end tube (151) is connected to the top end of the vortex tube structure (153), the bottom end of the vortex tube structure (153) is connected to the top end of the cold end tube (152), and the bottom end of the cold end tube (152) is connected to the center hole at the top end of the hollow amplitude rod (14); A spiral groove structure (1531) is provided inside the vortex tube structure (153), and two ends of the spiral groove structure (1531) are respectively connected to the hot end tube (151) and the cold end tube (152) to form a hollow structure. A connecting hole structure is provided on the side wall of the vortex tube structure (153), and one end of the high-pressure hollow tube (10) is connected to the vortex tube structure (153) through the connecting hole structure. Both ends of the heat-insulating tube (13) at the middle end of the knife handle are provided with internal threads (131), and a first annular heat-insulating through hole (132) and a second annular heat-insulating hole (133) are provided inside the heat-insulating tube (13) at the middle end of the knife handle; One end of the high-pressure hollow tube (10) is connected to a hollow rivet (11) fixed to the upper end cover (12) of the shank, and the other end of the high-pressure hollow tube (10) passes through the first annular heat-insulating through hole (132) and is connected to the connection hole structure of the eddy current internal cooling structure (15); A dustproof tube (155) is provided at the top end of the hot end tube (151) of the eddy current internal cooling structure (15); the dustproof tube (155) is connected to the heat insulation tube (13) at the middle end of the shank through the second annular heat insulation hole (133); The top of the hollow amplitude changing rod (14) is provided with a fixed frame (141), and the fixed frame (141) is provided with a fixed installation groove (1411) and a wireless transmission lower plate (1412); the eddy current internal cooling structure (15) and the annular transducer (16) are fixed in the fixed installation groove (1411), the wireless transmission lower plate (1412) and the annular transducer (16) are connected by a wire, and the top of the eddy current internal cooling structure (15) is connected to the heat insulation tube (13) at the middle end of the tool handle, and the bottom end of the eddy current internal cooling structure (15) is connected to the central hole at the top of the hollow amplitude changing rod (14), and the bottom end of the hollow amplitude changing rod (14) is provided with a nut pressure cap (6), and the hollow internal cooling tool (3) is connected to the hollow amplitude changing rod (14) through the nut pressure cap (6).

2. The eddy current internal cooling and ultrasonic vibration composite processing device according to claim 1, characterized in that: The temperature control valve structure (154) comprises a conical airflow separation structure (1541), a cylindrical structure (1542), and a threaded end structure (1543) connected in sequence from bottom to top in a vertical direction, and the temperature control valve structure (154) is connected to the inner wall of the hot end pipe (151) via the threaded end structure (1543); The cylindrical structure (1542) is evenly distributed with a plurality of air inlet structures (15421), and the air inlet structures (15421) are interconnected; an air outlet structure (15431) is provided at the center of the threaded end structure (1543); The conical airflow separation structure (1541) diverts the high-temperature gas generated from the vortex internal cooling structure (15), and the conical airflow separation structure (1541) and the inner wall of the hot end tube (151) form an airflow channel, and the airflow channel is connected to the air inlet structure (15421) and the air outlet structure (15431) in sequence.

3. The eddy current internal cooling and ultrasonic vibration composite processing device according to claim 1, characterized in that: The annular transducer (16) is fixed to the top end of the hollow amplitude rod (14) and is evenly distributed on the outside of the cold end tube (152); Each of the annular transducers (16) includes an annular coil (161), an upper end cover (163), an insulating cover (164), and a magnetostrictive tube (165) connected in sequence via insulating bolts (162), forming an integrated structure, and a plurality of coil connection holes (166) are provided in the circumference of the integrated structure. The annular coil (161) is arranged on the outside of the integrated structure through the coil connection hole (166).

4. The eddy current internal cooling and ultrasonic vibration composite processing device according to claim 1, characterized in that: The hollow internally-cooled tool (3) is provided with a cooling hole (31).

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