Ultrasonic atomization milling device

Abstract

The invention relates to an ultrasonic atomization milling device, belongs to the technical field of ultrasonic milling, and solves the problems that in the prior art, cutting heat affects the performance of a tool and the utilization rate of cooling liquid is low. The front end of the cutter handle assembly is connected with a lock tooth milling cutter, the rear end of the cutter handle assembly is connected with a machine tool spindle, and an inner cavity used for containing an ultrasonic transducer assembly is formed in the cutter handle assembly; the power supply coil is used for supplying power to the ultrasonic transducer assembly; the ultrasonic transducer assembly can generate high-frequency vibration after being electrified; the liquid supply device is used for introducing cooling liquid into an internal flow channel of a transducer amplitude-change pole of the ultrasonic transducer assembly; the locking tooth milling cutter is used for milling the workpiece; an internal flow channel of the tooth-locking milling cutter is communicated with an internal flow channel of the transducer amplitude-change pole, and the cooling liquid can be atomized and sprayed out under the high-frequency vibration effect of the ultrasonic transducer assembly when flowing out of the internal flow channel of the tooth-locking milling cutter. According to the invention, cooling and lubrication of a cutting area are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic milling, and particularly to an ultrasonic atomization milling device. Background Art

[0002] Hard-to-machine materials such as high-performance composite materials and superalloys are widely used in the aerospace field. To reduce the weight of equipment, these materials are usually processed into thin-walled structural parts by milling technology, and extremely high requirements are imposed on machining accuracy and reliability. However, such parts have poor rigidity, are prone to chatter and deformation during milling, and the machining quality is unstable. In addition, there are also problems such as large tool wear and low machining efficiency. Compared with traditional milling, ultrasonic milling can reduce cutting force, reduce tool wear, improve machining surface quality, and improve the stability of the machining process, especially suitable for hard-to-machine materials.

[0003] A large amount of cutting heat is generated during milling, and a coolant needs to be used to cool and lubricate the cutting area. The working principle of a conventional liquid supply device is pouring cooling, with high processing costs, low coolant utilization rate, and easy environmental pollution, not meeting the requirements of green manufacturing.

[0004] Based on this, the present invention provides an ultrasonic atomization milling device to solve the problems of cutting heat affecting tool performance and low coolant utilization rate in the prior art. Summary of the Invention

[0005] In view of the above analysis, the present invention aims to provide an ultrasonic atomization milling device to solve the problems of cutting heat affecting tool performance and low coolant utilization rate in the prior art.

[0006] The object of the present invention is mainly achieved through the following technical solutions:

[0007] An ultrasonic atomization milling device, comprising: a tool holder assembly, a power supply coil, a liquid supply device, an ultrasonic transducer assembly, and a lock-tooth milling cutter;

[0008] The tool holder assembly is the main structure of the ultrasonic atomization milling device; the front end of the tool holder assembly is connected to the lock-tooth milling cutter, the rear end is connected to the machine tool spindle, and an inner cavity for installing the ultrasonic transducer assembly is provided inside; the power supply coil is used to supply power to the ultrasonic transducer assembly; the ultrasonic transducer assembly can generate high-frequency vibration after being energized; the liquid supply device is used to introduce a coolant into the internal flow channel of the transducer horn of the ultrasonic transducer assembly; the lock-tooth milling cutter is used to mill the workpiece; the internal flow channel of the lock-tooth milling cutter is communicated with the internal flow channel of the transducer horn, and when the coolant flows out from the internal flow channel of the lock-tooth milling cutter, it can be atomized and ejected under the action of the high-frequency vibration of the ultrasonic transducer assembly.

[0009] Further, the tool handle assembly includes: a pull stud and a tool handle; the rear end of the pull stud is connected to the machine tool spindle, and the front end is threadedly connected to the tool handle.

[0010] Further, the power supply coil is adhesively fixed on the outer circumferential surface of the tool handle by epoxy resin.

[0011] Further, the ultrasonic transducer assembly includes: a transducer rear cover plate, a pre-tightening screw, a piezoelectric ceramic sheet, and a transducer horn; the transducer rear cover plate and the piezoelectric ceramic sheet are fixedly connected to the transducer horn by the pre-tightening screw; the transducer horn is fixedly connected to the tool handle assembly.

[0012] Further, two second internal flow channels are provided inside the transducer horn for circulating coolant; an internal threaded hole for installing a locking tooth milling cutter is provided at the front end of the transducer horn.

[0013] Further, a sealing ring is provided in the internal threaded hole, and when the locking tooth milling cutter is screwed into the internal threaded hole, it is in press contact with the end face of the sealing ring.

[0014] Further, the liquid supply device includes: a bearing and a liquid supply housing, two bearing mounting grooves are provided on the inner side of the liquid supply housing, and the bearing is mounted in the bearing mounting groove.

[0015] Further, an annular flow channel is provided on the inner side of the liquid supply housing, and the annular flow channel is provided on the annular boss between the two bearing mounting grooves.

[0016] Further, a first internal flow channel is provided on the side surface of the liquid supply housing, and the first internal flow channel communicates with the annular flow channel.

[0017] Further, the liquid supply housing is rotatably mounted on the outside of the transducer horn through a bearing; the annular flow channel communicates with the internal flow channel of the transducer horn.

[0018] The technical solution of the present invention can at least achieve one of the following effects:

[0019] 1. In the ultrasonic atomization milling device of the present invention, both the liquid supply device and the transducer horn are provided with internal flow channels, the locking tooth milling cutter is provided with an atomization flow channel, the coolant is introduced from the liquid supply device into the internal flow channel of the transducer horn, and then flows into the atomization flow channel in the locking tooth milling cutter. At the outlet of the atomization flow channel, it is atomized into micron-sized uniform small droplets by ultrasonic atomization and sprayed onto the cutting area for cooling and lubrication. At the same time, the ultrasonic vibration generated by the transducer is transmitted to the cutting edge of the milling cutter, improving the cutting performance of the device.

[0020] 2. In the ultrasonic atomization milling device of the present invention, an annular flow channel is arranged inside the outer side of the liquid supply and is rotationally communicated with the inner flow channel of the transducer horn, so that when the transducer horn rotates driven by the machine tool spindle and the tool holder assembly, continuous coolant supply to the atomization flow channel inside the lock tooth milling cutter can be maintained.

[0021] 3. The ultrasonic atomization milling device of the present invention has a simple structure, good applicability, can improve the utilization rate of coolant, reduce processing costs, and is environmentally friendly and safe in the production process, and can meet the requirements of high-quality, high-efficiency, and green milling processing.

[0022] In the present invention, the above technical solutions can also be combined with each other to realize more preferred combination schemes. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can be made obvious from the description, or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained from the content specifically pointed out in the description and the drawings. Description of the Drawings

[0023] The drawings are only for the purpose of showing specific embodiments, and are not considered as a limitation to the present invention. Throughout the drawings, the same reference signs represent the same components.

[0024] Figure 1 It is the overall structure diagram of the ultrasonic atomization milling device of Embodiment 1 of the present invention;

[0025] Figure 2 It is the cross-sectional view of the ultrasonic atomization milling device of Embodiment 1 of the present invention;

[0026] Figure 3 It is Figure 2 The partial enlarged view at A in;

[0027] Figure 4 It is the structural schematic diagram of the connection between the lock tooth milling cutter and the transducer horn of the ultrasonic atomization milling device of Embodiment 1 of the present invention;

[0028] Figure 5 It is the structural schematic diagram of the liquid supply housing of the ultrasonic atomization milling device of Embodiment 1 of the present invention;

[0029] Figure 6 It is Figure 5 The half-sectional effect diagram of the liquid supply housing in;

[0030] Figure 7 It is the structural schematic diagram of the atomization spoiler of the ultrasonic atomization milling device of Embodiment 2 of the present invention;

[0031] Figure 8 It is Figure 7 The back-side three-dimensional view of the atomization spoiler in;

[0032] Figure 9 Front view of the atomizing spoiler in Figure 7 .

[0033] Reference numerals:

[0034] 1 - Tool shank assembly; 2 - Power supply coil; 3 - Liquid supply device; 4 - Ultrasonic transducer assembly; 5 - Lock tooth milling cutter;

[0035] 11 - Pull stud; 12 - Tool shank;

[0036] 31 - Bearing; 32 - Liquid supply housing; 33 - First internal flow channel; 34 - Snap ring; 35 - Labyrinth groove; 36 - Annular flow channel; 37 - Bearing mounting groove;

[0037] 41 - Transducer rear cover plate; 42 - Pre - tightening screw; 43 - Piezoelectric ceramic sheet; 44 - Transducer horn; 441 - Mounting disc; 442 - Second internal flow channel; 443 - Fastening screw;

[0038] 51 - Sealing ring; 52 - Tool bar; 521 - Atomizing flow channel; 53 - Tool tip; 531 - Blade; 54 - Atomizing spoiler; 541 - Conical ring; 542 - Mounting ring; 543 - Vortex spoiler blade. Detailed implementation manners

[0039] The following combines the drawings to specifically describe the preferred embodiments of the present invention. Among them, the drawings form a part of the present invention and are used together with the embodiments of the present invention to explain the principle of the present invention, and are not used to limit the scope of the present invention.

[0040] Embodiment 1

[0041] A specific embodiment of the present invention discloses an ultrasonic atomizing milling device, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 . It includes: a tool shank assembly 1, a power supply coil 2, a liquid supply device 3, an ultrasonic transducer assembly 4, and a lock tooth milling cutter 5. Among them, the tool shank assembly 1 is the main structure of the ultrasonic atomizing milling device; the front end of the tool shank assembly is connected to the lock tooth milling cutter 5, the rear end is connected to the machine tool spindle, and there is an inner cavity for loading the ultrasonic transducer assembly 4 inside; the power supply coil 2 is used to supply power to the ultrasonic transducer assembly 4; the ultrasonic transducer assembly 4 can generate high - frequency vibration after being energized; the liquid supply device 3 is used to introduce cooling liquid into the internal flow channel of the transducer horn 44 of the ultrasonic transducer assembly 4; the lock tooth milling cutter 5 is used to mill the workpiece; the internal flow channel of the lock tooth milling cutter 5 is communicated with the internal flow channel of the transducer horn 44, and when the cooling liquid flows out from the internal flow channel of the lock tooth milling cutter 5, it can be atomized and ejected under the action of the high - frequency vibration of the ultrasonic transducer assembly 4.

[0042] In a specific embodiment of the present invention, the tool holder assembly 1 includes a pull stud 11 and a tool holder 12; the rear end of the pull stud 11 is connected to the machine tool spindle, and the front end is threadedly connected to the tool holder 12. The tool holder assembly 1 is connected to the machine tool spindle through the pull stud 11 and can thus rotate under the drive of the machine tool spindle.

[0043] Furthermore, the power supply coil 2 is adhesively fixed on the outer circumferential surface of the tool holder 12 by epoxy resin. Preferably, a conductive slip ring is provided between the power supply coil 2 and the external power supply device for rotary transmission, or the power supply coil 2 itself uses a power device capable of rotary transmission.

[0044] In a specific embodiment of the present invention, as Figure 2 shown, the ultrasonic transducer assembly 4 includes a transducer rear cover 41, a pre-tightening screw 42, a piezoelectric ceramic sheet 43, and a transducer horn 44; the transducer rear cover 41 and the piezoelectric ceramic sheet 43 are fixedly connected to the transducer horn 44 through the pre-tightening screw 42; the transducer horn 44 is fixedly connected to the tool holder assembly 1.

[0045] In this embodiment, the piezoelectric ceramic sheet 43 is nested on the pre-tightening screw 42, and the piezoelectric ceramic sheet 43 is clamped between the transducer rear cover 41 and the transducer horn 44. A certain pre-tightening force is applied through the pre-tightening screw 42 to fasten the transducer rear cover 41, the piezoelectric ceramic sheet 43, and the transducer horn 44 into one body.

[0046] Furthermore, the transducer rear cover 41, the pre-tightening screw 42, and the piezoelectric ceramic sheet 43 are installed into the inner cavity of the tool holder 12, and the mounting plate 441 of the transducer horn 44 is fixedly connected to the end face of the tool holder 12 by welding. Specifically, insulating layers are provided between the piezoelectric ceramic sheet 43 and the transducer rear cover 41, the pre-tightening screw 42, and the transducer horn 44. The insulating layer is an insulating gasket or a coated insulating glue. In this embodiment, the tool holder 12 can drive the transducer horn 44 to rotate, and the piezoelectric ceramic sheet 43 can drive the transducer horn 44 to generate ultrasonic vibration after being energized.

[0047] Specifically, as Figure 2 、 Figure 3As shown in the figure, the liquid supply device 3 includes: a bearing 31 and a liquid supply housing 32. Inside the liquid supply housing 32, there are an annular boss and two bearing mounting grooves 37 provided on both sides of the annular boss, and the bearing 31 is installed in the bearing mounting groove 37. The liquid supply housing 32 is nested and installed outside the transducer horn 44 and is rotationally connected to the transducer horn 44 through the bearing 31; the bearing 31 and the mounting disc 441 of the transducer horn 44 are positioned and installed through a circlip 34. An annular groove for installing the liquid supply housing 32 is provided on the outside of the transducer horn 44, and the bearing 31 and the lower end surface of the annular groove of the transducer horn 44 are also positioned and installed through a circlip 34.

[0048] Further, as Figure 2 、 Figure 3 shown, a first internal flow channel 33 is provided on the side surface of the liquid supply housing 32; as Figure 5 、 Figure 6 shown, an annular flow channel 36 is provided inside the liquid supply housing 32, and the annular flow channel 36 is provided on the annular boss between the two bearing mounting grooves 37. The first internal flow channel 33 is communicated with the annular flow channel 36. When the liquid supply housing 32 is rotationally installed outside the transducer horn 44 through the bearing 31, the annular flow channel 36 is rotationally communicated with the internal flow channel of the transducer horn 44.

[0049] In this embodiment, as Figure 2 、 Figure 3 、 Figure 4 shown, two second internal flow channels 442 are provided inside the transducer horn 44 for circulating the coolant; an internal threaded hole for installing the locking tooth milling cutter 5 is provided at the front end of the transducer horn 44.

[0050] Further, as Figure 4 shown, two screw holes are provided on the circumferential side surface of the transducer horn 44, and fastening screws 443 are installed in the screw holes; the screw holes are communicated with the internal threaded hole; when the locking tooth milling cutter 5 is screwed into the internal threaded hole, the fastening screws 443 can be used to assist in fixing the locking tooth milling cutter 5.

[0051] Specifically, as Figure 2 、 Figure 4 shown, one end of the second internal flow channel 442 is opened on the side surface of the transducer horn 44 and can be communicated with the annular flow channel 36, and the other end is opened on the bottom end surface of the internal threaded hole of the transducer horn 44.

[0052] Preferably, the second internal flow channel 442 is a three-segment bent structure. The first flow channel is arranged perpendicular to the axis of the transducer horn 44. The second flow channel is an inclined section for connecting the first flow channel and the third flow channel. The third flow channel is arranged parallel to the axis of the transducer horn 44, as Figure 2 , Figure 3 shown.

[0053] Furthermore, a sealing ring 51 is arranged in the internal thread hole. When the locking tooth milling cutter 5 is screwed into the internal thread hole, it is in extrusion contact with the end face of the sealing ring 51. The sealing ring 51 can seal the gap between the locking tooth milling cutter 5 and the transducer horn 44, and at the same time can form a circular liquid outlet cavity, and can introduce the coolant into the atomization flow channel 521 of the tool shank 52 of the locking tooth milling cutter 5.

[0054] In this embodiment, a first internal flow channel 33 and a second internal flow channel 442 are respectively opened in the liquid supply device 3 and the transducer horn 44. The first internal flow channel 33 and the second internal flow channel 442 are connected through an annular flow channel 36. When the locking tooth milling cutter 5 is fixed in the internal thread hole at the front end of the transducer horn 44 by threaded connection, a circular liquid outlet cavity is separated in the internal thread hole by the sealing ring 51, and the second internal flow channel 442 is communicated with the atomization flow channel 521 inside the tool shank 52 of the locking tooth milling cutter 5. The coolant flows from the first internal flow channel 33 and the annular flow channel 36 of the liquid supply device 3 into the second internal flow channel 442 of the transducer horn 44, and then flows from the second internal flow channel 442 into the atomization flow channel 521 of the locking tooth milling cutter 5, and forms droplets and sprays out under the action of ultrasonic atomization at the outlet of the atomization flow channel 521, so as to improve the cooling and lubrication effects of the cutting area.

[0055] In this embodiment, in order to realize the seal between the liquid supply housing 32 and the transducer horn 44, a labyrinth groove 35 is provided on the inner wall surface of the liquid supply housing 32, and two groups of labyrinth grooves 35 are arranged on the upper and lower sides of the annular flow channel 36. During implementation, there is a gap between the inner wall of the liquid supply housing 32 and the outer wall of the transducer horn 44, and the labyrinth groove 35 is communicated with the gap. When the tool shank rotates at a high speed, the coolant will form an oil film seal at the gap of the transducer horn 44.

[0056] Preferably, the structural form of the labyrinth groove 35 is as Figure 5 , Figure 6 shown; the labyrinth groove 35 is formed by connecting the heads and tails of a plurality of "ㄇ"-shaped grooves.

[0057] In this embodiment, as Figure 4As shown in the figure, the lock tooth milling cutter 5 includes a cutter bar 52, a cutter head 53 and a cutting blade 531. The cutter bar 52 and the cutter head 53 are of an integral structure. The cutter bar 52 is threadedly connected to the transducer horn 44, and a sealing ring 51 is used at the connection to prevent coolant leakage. The cutter head 53 is provided with a mounting groove for the cutting blade 531, and the cutting blade 531 is mounted on the cutter head 53 by screws.

[0058] Furthermore, two atomization channels 521 are axially formed in the cutter bar 52 and the cutter head 53, and the outlets of the atomization channels 521 are aligned with the cutting blade 531. The coolant forms micron-sized droplets through ultrasonic atomization at the outlets of the atomization channels 521 and is ejected, which is used to cool and lubricate the machining area.

[0059] Furthermore, the ultrasonic transducer assembly 4 adopts a multi-wavelength design. The ultrasonic amplification effect of the transducer horn 44 is better than that of a half-wavelength type transducer horn, which can enhance the small-amplitude longitudinal vibration generated by the piezoelectric ceramic sheet 43 into a larger ultrasonic vibration and efficiently transmit it to the cutting edge of the lock tooth milling cutter 5. The amplitude range of the cutting edge is wide, and it can be precisely controlled according to the machining requirements to ensure the best cutting performance when machining different materials and improve the cutting efficiency.

[0060] Preferably, the shape of the second internal flow channel 442 of the transducer horn 44 is not limited to one type, and can be in various forms such as a straight-shaped or spiral internal flow channel. The number of the second internal flow channel 442 and the atomization channels 521 is not limited to two, and can be set to multiple according to requirements.

[0061] During implementation, the coolant flows from the first internal flow channel 33 and the annular flow channel 36 of the liquid supply device 3 into the transducer horn 44, and then flows along the second internal flow channel 442 of the transducer horn 44 into the atomization channels 521 of the lock tooth milling cutter 5. It becomes fine mist droplets under the action of ultrasonic atomization at the outlets of the atomization channels 521 and is sprayed onto the machining area, forming a uniform lubricating film in the contact area between the tool and the workpiece, greatly reducing the friction between the cutting edge and the machining surface, so as to play a role in cooling and lubrication.

[0062] In this embodiment, due to the ultrasonic amplitude amplification effect of the transducer horn 44, the strong sound pressure formed at its front end exceeds the cohesive force between coolant molecules, causing the liquid to be broken into tiny droplets. The excess sound pressure pushes these droplets out from the end of the lock tooth milling cutter 5. The atomized coolant cools and lubricates the cutting area, which can greatly reduce the coolant consumption, lower the machining cost, and achieve the dual goals of environmental protection and safe production. Combining the two processing technologies of ultrasonic atomization and ultrasonic milling can meet the requirements of high quality, high efficiency, and green manufacturing, and has important engineering application value.

[0063] The ultrasonic atomization milling device of the present invention combines ultrasonic atomization and ultrasonic milling technologies, can ultrasonically atomize the coolant into micron-sized small droplets, uses less coolant, and meets the requirements of minimum quantity lubrication technology; at the same time, the ultrasonic vibration is transmitted to the cutting edge through the transducer horn 44 and the insert milling cutter 5 to form ultrasonic milling, which can effectively reduce the cutting force and cutting heat, and improve the machining accuracy and tool service life. The transducer horn 44 and the tool shank 12 are rigidly connected by welding, improving the stability of the milling device.

[0064] This device can reduce the processing cost, improve the processing efficiency, improve the tool heat dissipation and chip removal effects, install a variety of inserts according to the working conditions, and has a wide application range, thereby improving the processing performance of ultrasonic milling technology.

[0065] Embodiment 2

[0066] A specific embodiment of the present invention is an improved design based on Embodiment 1:

[0067] In this embodiment, an atomization spoiler 54 is installed at the end of the atomization flow channel 521.

[0068] As Figure 7 、 Figure 8 、 Figure 9 shown, the atomization spoiler 54 includes: a conical ring 541, a mounting ring 542, and a vortex spoiler vane 543.

[0069] As Figure 7 shown, the mounting ring 542 is arranged on the outer side of the large end of the conical ring 541, and the mounting ring 542 is used to cooperate with the atomization flow channel 521 and is fixedly connected.

[0070] During implementation, the atomization spoiler 54 is integrally installed inside the atomization flow channel 521. Specifically, the mounting ring 542 of the atomization spoiler 54 is embedded and installed inside the atomization flow channel 521, and the small end of the conical ring 541 of the atomization spoiler 54 faces the inner side of the atomization flow channel 521, and the large end of the conical ring 541 faces the outlet direction of the atomization flow channel 521.

[0071] In this embodiment, by installing the atomization spoiler 54 at the port position of the atomization flow channel 521, when the coolant flows through the atomization spoiler 54, a pressure boosting effect is generated by the blocking action of the conical ring 541, and then under the action of the ultrasonic sound pressure generated by the ultrasonic transducer assembly 4, its atomization effect is enhanced, and when the atomized coolant spray is ejected from the small end to the large end of the conical ring 541, the pressure is released, which can enhance the ejection kinetic energy of the coolant droplets, and then extend its ejection distance, ensuring the cooling and lubrication effects of the atomized coolant on the insert milling cutter 5.

[0072] Preferably, the outer diameter of the mounting ring 542 is equal to the inner diameter of the atomizing flow channel 521; the mounting ring 542 is fixedly connected to the inner wall of the atomizing flow channel 521 by bonding or welding.

[0073] Furthermore, as Figure 7 , Figure 8 , Figure 9 shown, a plurality of vortex flow disturbing vanes 543 are circumferentially and spacedly arranged inside the conical ring 541; specifically, the vortex flow disturbing vanes 543 integrally extend in a vortex shape along the inner wall surface of the conical ring 541, and the plurality of vortex flow disturbing vanes 543 are equidistantly arranged in the circumferential direction of the conical ring 541.

[0074] In this embodiment, by arranging the atomizing flow disturbing device 54 at the end of the atomizing flow channel 521, when the coolant is ejected from the end of the atomizing flow channel 521, it is atomized and ejected in a spiral shape through the flow disturbing action of the atomizing flow disturbing device 54, expanding the spraying range of the atomized coolant, enabling it to cool the overall lock tooth milling cutter 5 and providing lubrication to the milling operation surface.

[0075] In this embodiment, by circumferentially arranging a plurality of vortex flow disturbing vanes 543, the ejected coolant droplets have a certain centrifugal force, thereby promoting the detachment of the chips generated during the milling process from the milling operation surface.

[0076] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An ultrasonic atomization milling device, characterized in that, Comprising: A tool shank assembly (1), a power supply coil (2), a liquid supply device (3), an ultrasonic transducer assembly (4), and a locking tooth milling cutter (5); The tool shank assembly (1) is the main structure of the ultrasonic atomization milling device; the front end of the tool shank assembly (1) is connected to the locking tooth milling cutter (5), the rear end is connected to the machine tool spindle, and an inner cavity for installing the ultrasonic transducer assembly (4) is provided inside; the power supply coil (2) is used to supply power to the ultrasonic transducer assembly (4); the ultrasonic transducer assembly (4) can generate high-frequency vibration after being energized; the liquid supply device (3) is used to introduce coolant into the internal flow channel of the transducer horn (44) of the ultrasonic transducer assembly (4); the locking tooth milling cutter (5) is used to mill the workpiece; the internal flow channel of the locking tooth milling cutter (5) is communicated with the internal flow channel of the transducer horn (44), and when the coolant flows out from the internal flow channel of the locking tooth milling cutter (5), it can be atomized and ejected under the action of the high-frequency vibration of the ultrasonic transducer assembly (4).

2. The ultrasonic atomization milling device according to claim 1, wherein, The tool shank assembly (1) includes: a pull stud (11) and a tool shank (12); the rear end of the pull stud (11) is connected to the machine tool spindle, and the front end is threadedly connected to the tool shank (12).

3. The ultrasonic atomization milling device according to claim 2, wherein, The power supply coil (2) is adhesively fixed on the outer circumferential surface of the tool shank (12) by epoxy resin.

4. The ultrasonic atomization milling device according to claim 2 or 3, characterized in that, The ultrasonic transducer assembly (4) includes: a transducer rear cover (41), a pre-tightening screw (42), a piezoelectric ceramic sheet (43), and a transducer horn (44); the transducer rear cover (41) and the piezoelectric ceramic sheet (43) are fixedly connected to the transducer horn (44) by the pre-tightening screw (42); the transducer horn (44) is fixedly connected to the tool shank assembly (1).

5. The ultrasonic atomization milling device according to claim 2 or 3, characterized in that Two second internal flow channels (442) are provided inside the transducer horn (44) for circulating coolant; an internal threaded hole for installing the locking tooth milling cutter (5) is provided at the front end of the transducer horn (44).

6. The ultrasonic atomization milling device according to claim 5, wherein A sealing ring (51) is arranged in the internal threaded hole, and when the locking tooth milling cutter (5) is screwed into the internal threaded hole, it is in pressing contact with the end face of the sealing ring (51).

7. The ultrasonic atomization milling device according to claim 1, wherein The liquid supply device (3) includes: a bearing (31) and a liquid supply housing (32), two bearing mounting grooves (37) are provided on the inner side of the liquid supply housing (32), and the bearing (31) is installed in the bearing mounting grooves (37).

8. The ultrasonic atomization milling device according to claim 7, characterized in that An annular flow channel (36) is provided on the inner side of the liquid supply housing (32), and the annular flow channel (36) is provided on the annular boss between the two bearing mounting grooves (37).

9. The ultrasonic atomization milling device according to claim 8, wherein, A first internal flow channel (33) is provided on the side surface of the liquid supply housing (32), and the first internal flow channel (33) is communicated with the annular flow channel (36).

10. The ultrasonic atomization milling device according to claim 9, wherein, The liquid supply housing (32) is rotatably mounted on the outside of the transducer horn (44) through the bearing (31); the annular flow channel (36) is communicated with the internal flow channel of the transducer horn (44).

Images