Internal and external ring-type ultrasonic processing equipment, ultrasonic spindle, ultrasonic machine tool, and ultrasonic drill

Abstract

The present invention relates to the technical field of ultrasonic machining, and more particularly to an inner and outer ring type ultrasonic machining apparatus, an ultrasonic spindle, an ultrasonic machine tool, and an ultrasonic drill. The inner and outer ring type ultrasonic machining apparatus includes a cutter body, a wireless transmission mechanism, and an ultrasonic transducer. The wireless transmission mechanism includes a transmitting unit and a receiving unit arranged in an inner and outer ring shape. The ultrasonic transducer is electrically connected to the receiving unit, and the apparent power and supplied peak current of the transmitting unit and the receiving unit can be matched to their respective operating structural parameters and characteristics by satisfying a predetermined relational expression for the structural parameters of the transmitting unit and the receiving unit. In the radial circulation path of the magnetic flux line, the structure of the transmitting unit and the structure of the receiving unit can better transmit and receive magnetic field energy, the energy of the wireless transmission mechanism is better converted into mechanical vibration, the temperature and heating rate of the transmitting unit and the receiving unit in operation are reduced, the stability of continuous operation of the ultrasonic spindle is improved, and the energy conversion rate is improved.

Description

[Technical Field]

[0001] The present invention relates to the technical field of ultrasonic machining, and more particularly to an internal and external ring type ultrasonic machining apparatus, an ultrasonic spindle, an ultrasonic machine tool, and an ultrasonic drill. [Background technology]

[0002] Advanced materials such as functional ceramics, optical crystals, high-strength and high-toughness alloys, and ceramic composite materials possess excellent overall mechanical, physical, and chemical properties. However, these materials are also typically difficult to process, and in machining, challenges such as easy tool wear, short tool life, poor machining quality, and low machining efficiency arise. Conventional machining processes find it difficult to completely solve these problems.

[0003] Ultrasonic machining is a machining method that applies micron-level ultrasonic vibrations to tools and workpieces, and by controlling the vibration frequency, amplitude, and direction, it causes periodic high-frequency delamination between the machining tool and the workpiece. From numerous studies and practical applications, ultrasonic machining technology has shown superior effects compared to conventional machining when processing new materials such as difficult-to-machine metals, hard and brittle materials, and composite materials, in terms of suppressing the occurrence of microcracks, reducing cutting forces, extending tool life, reducing burrs on the workpiece, and improving machining efficiency.

[0004] An ultrasonic machining apparatus can be thought of as adding an ultrasonic transmission mechanism and an ultrasonic transducer to a conventional tool, causing the tool to vibrate at high frequencies during machining. Conventional ultrasonic transmission mechanisms generally employ an inner and outer ring-type layout design in which the transmitting unit is fitted onto the outer circumference of the receiving unit. When an alternating current is passed through the transmitting unit, an induced magnetic field is generated in the transmitting unit, and the magnetic flux lines circulate radially within the ultrasonic transmission mechanism, thereby enabling inductive communication between the transmitting and receiving units and providing the energy source for the high-frequency vibrations of the ultrasonic machining apparatus. However, as the magnetic flux lines circulate radially within the ultrasonic transmission mechanism, they pass through the structure of the transmitting and receiving units, and are reduced by the structure of the transmitting and receiving units, which consequently affects the output of the ultrasonic machining apparatus. Therefore, the structure and layout of the ultrasonic transmission mechanism are closely related to the output of the ultrasonic machining apparatus.

[0005] Conventional ultrasonic processing equipment does not correlate the structural parameters of the ultrasonic transmission mechanism with the apparent power during operation. In conventional ultrasonic processing equipment, the apparent power cannot be matched with the structural parameters of the ultrasonic transmission mechanism during operation, which can lead to excessive energy consumption in the form of thermal energy from the output of the ultrasonic transmission mechanism. This causes the heating rate of the ultrasonic transmission mechanism to gradually increase over time, affecting the operational stability, transmission efficiency, and service life of the ultrasonic transmission mechanism. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The object of the present invention is to provide an ultrasonic processing apparatus using an inner and outer ring design that can improve operational stability and transmission efficiency, reduce the heating rate of the ultrasonic transmission mechanism, and thereby extend its service life. [Means for solving the problem]

[0007] To achieve the above objectives, the present invention provides: A cutter body with an ultrasonic transducer inside, It includes a transmitting unit and a receiving unit. The receiving unit is provided on the outer peripheral side of the cutter body, the transmitting unit is provided on the outer peripheral side of the receiving unit, and the transmitting unit and the receiving unit are provided opposite to each other so that an air gap is formed between the transmitting unit and the receiving unit. The transmitting unit includes a transmitting coil and a transmitting magnet that generates a magnetic field based on the current of the transmitting coil. The receiving unit includes a receiving coil and a receiving magnet for receiving the magnetic field by the transmitting unit, and a wireless transmission mechanism. It includes an ultrasonic transducer electrically connected to the receiving unit. Let the frequency of the electrical signal input to the receiving unit be f Hz, the magnetic resistance of the air gap of the wireless transmission mechanism be R δ H -1 , the magnetic resistance of the transmitting unit be R 送信 H -1 , the magnetic resistance of the receiving unit be R 受信 H -1 . Furthermore, let the number of turns of the transmitting coil be N 送信 , the apparent power of the transmitting unit be Q 送信 VA, the peak current supplied to the transmitting unit be I 送信 A. Then, the above parameters satisfy the following relational expressions. JPEG2026512187000002.jpg1660Let the number of turns of the receiving coil be N 受信 , the apparent power of the receiving unit be Q 受信 , the peak current supplied to the receiving unit be I 受信 A. Then, the above parameters satisfy the following relational expressions. JPEG2026512187000003.jpg1660Here, 2 ≤ N 送信 ≤ 240, 2 ≤ N 受信 ≤ 240, and K1 is a correction coefficient satisfying 0.5 ≤ K1 ≤ 1.5. An internal and external ring type ultrasonic processing device is provided.

[0008] In some embodiments of the present invention, the angle at which the transmitting unit surrounds the outer circumference of the cutter body is θ radians. Satisfy the requirements of JPEG2026512187000004.jpg826.

[0009] In some embodiments of the present invention, when θ = 2π, a first wiring slot is provided on the end face of the transmitting magnet facing the receiving unit so as to surround the cutter body, and the transmitting coil is housed in the first wiring slot. The transmitting magnet includes a first annular side plate, a first annular top plate, and a first annular bottom plate, the first annular top plate being connected to the rear edge of the first annular side plate, and the first annular bottom plate being connected to the front edge of the first annular side plate. A first wiring slot opening toward the receiving unit is formed between the first annular side plate, the first annular top plate, and the first annular bottom plate, where the thickness of the first annular top plate is T. 2a mm, the thickness of the first annular base plate is T 2b The inner diameter of the transmitting magnet is D4mm, the outer diameter of the transmitting magnet is D6mm, the length of the opening of the first wiring slot extending axially from the cutter body is B2mm, the depth of the first wiring slot is E2mm, and the diameter of the first wiring slot is D5mm. A second wiring slot is provided on the end face of the receiving magnet facing the transmitting unit, surrounding the cutter body, and the receiving coil is housed in the second wiring slot. The receiving magnet includes a second annular side plate, a second annular top plate, and a second annular bottom plate. The second annular top plate is connected to the rear edge of the second annular side plate, and the second annular bottom plate is connected to the front edge of the second annular side plate. A second wiring slot is formed between the second annular side plate, the second annular top plate, and the second annular bottom plate, opening toward the transmitting unit. Here, the thickness of the second annular top plate is T 1a mm, the thickness of the second ring-shaped base plate is T 1b The inner diameter of the receiving magnet is D1mm, the outer diameter of the receiving magnet is D3mm, the inner diameter of the second wiring slot is D2mm, the length of the opening of the second wiring slot extending axially from the cutter body is B1mm, and the depth of the second wiring slot is E1mm. Let u be the relative permeability of both the transmitting and receiving magnets, u0H / m be the vacuum permeability, and S1 be the magnetic path area of ​​the second annular side plate. The magnetic path area S1 satisfies the following equation: JPEG2026512187000005.jpg2355 The magnetic resistance R of the receiving unit 受信 The relationship between the above parameters is as follows: JPEG2026512187000006.jpg1553JPEG2026512187000007.jpg2575JPEG2026512187000008.jpg2575JPEG2026512187000009.jpg745Here, R1 is the magnetoresistance of the second annular side plate, R2 is the magnetoresistance of the second annular top plate, and R3 is the magnetoresistance of the second annular bottom plate. The magnetic resistance R of the aforementioned transmitting unit 送信 The relationship between the above parameters is as follows: JPEG2026512187000010.jpg28128JPEG2026512187000011.jpg2575JPEG2026512187000012.jpg2575JPEG2026512187000013.jpg745 Here, R4 is the magnetoresistance of the first annular side plate, R5 is the magnetoresistance of the first annular top plate, and R6 is the magnetoresistance of the first annular bottom plate.

[0010] In some embodiments of the present invention, when θ = 2π, the magnetoresistance of the air gap of the wireless transmission mechanism is R. δ H -1 The width of the air gap is L mm, the vacuum permeability is u0 H / m, and the magnetic resistance R of the air gap is... δ The following equation is satisfied: JPEG2026512187000014.jpg746 Here, R7 is the magnetoresistance of the air gap between the first annular top plate and the second annular top plate, R8 is the magnetoresistance of the air gap between the first annular bottom plate and the second annular bottom plate, and K2 is the correction coefficient for magnetoresistance, satisfying 0.2 ≤ K2 ≤ 3. Based on the structural parameters of the transmitting and receiving magnets, T 1a <T 2a In this case, T7 = T 1a And so, T 1a >T 2a In this case, T7 = T 2a And so, T 1b <T 2bIn this case, T8 = T 1b And so, T 1b >T 2b In this case, T8 = T 2b Therefore, R7 and R8 satisfy the following relationship: JPEG2026512187000015.jpg20134JPEG2026512187000016.jpg32144 Here, m is 7 or 8, and parameters β, γ, and a satisfy the following equation: JPEG2026512187000017.jpg1859JPEG2026512187000018.jpg1860JPEG2026512187000019.jpg521 JPEG2026512187000020.jpg639JPEG2026512187000021.jpg1238JPEG2026512187000022.jpg1230T 1a =T 2a In this case, T7 = T 1a And so, T 1b =T 2b In this case, T8 = T 1b Therefore, R7 and R8 satisfy the following relationship: JPEG2026512187000023.jpg20134JPEG2026512187000024.jpg14128 Here, m is either 7 or 8.

[0011] In some embodiments of the present invention, In the case of JPEG2026512187000025.jpg722, a first wiring slot is provided on the end face of the transmitting magnet facing the receiving unit so as to surround the cutter body, the transmitting coil is housed in the first wiring slot, and the transmitting magnet includes a connecting side plate, a connecting top plate, and a connecting bottom plate. The connecting top plate is connected to the rear edge of the connecting side plate, and the end face of the connecting top plate facing the receiving unit is provided with a top arc surface that fits the receiving unit. The connecting bottom plate is connected to the front edge of the connecting side plate, and the end face of the connecting bottom plate facing the receiving unit is provided with a bottom arc surface that fits the receiving unit. The top arc surface and the bottom arc surface allow the transmitting magnet to be positioned so as to surround the outer circumference of the receiving unit and to be in close proximity to the receiving unit. Between the connecting side plate, connecting top plate, and connecting bottom plate, a first wiring slot is formed that opens toward the receiving unit, and the transmitting coil is provided so as to surround the connecting side plate, with a portion of it embedded in the first wiring slot, the length of the connecting side plate may be less than the length of the connecting top plate, and the length of the connecting side plate may be less than the length of the connecting bottom plate, so that when the transmitting coil is wound on the connecting side plate, the transmitting coil is enclosed by the connecting top plate and the connecting bottom plate. Here, the thickness of the connecting side plate is A2mm, the length of the connecting side plate is H3mm, and the thickness of the connecting top plate is T 2a mm, the thickness of the connecting base plate is T 2b The minimum width from the outermost edge of the transmitting magnet to the inner arc surface is B3mm, the inner diameter of the transmitting magnet is D4mm, the length of the opening of the first wiring slot extending axially from the cutter body is B2mm, and the depth of the first wiring slot is E2mm. Since the transmitting unit is located on the outer circumference of the receiving unit, the "inside" of the transmitting magnet refers to the side of the transmitting magnet facing the receiving unit, the "outside" of the transmitting magnet refers to the side of the transmitting magnet opposite the receiving unit, the inner arc surface of the transmitting magnet is formed on the inside of the transmitting magnet and is close to the receiving unit, and an air gap is formed between it and the receiving unit. A second wiring slot is provided on the end face of the receiving magnet facing the transmitting unit, surrounding the cutter body, and the receiving coil is housed in the second wiring slot. The receiving magnet includes a second annular side plate, a second annular top plate, and a second annular bottom plate. The second annular top plate is connected to the rear edge of the second annular side plate, and the second annular bottom plate is connected to the front edge of the second annular side plate. A second wiring slot is formed between the second annular side plate, the second annular top plate, and the second annular bottom plate, opening toward the transmitting unit. Here, the thickness of the second annular top plate is T1a mm, the thickness of the second ring-shaped base plate is T 1b The inner diameter of the receiving magnet is D1mm, the outer diameter of the receiving magnet is D3mm, the inner diameter of the second wiring slot is D2mm, the length of the opening of the second wiring slot extending axially from the cutter body is B1mm, and the depth of the second wiring slot is E1mm. Let u be the relative permeability of both the transmitting and receiving magnets, u0H / m be the vacuum permeability, and S1 be the magnetic path area of ​​the second annular side plate. The magnetic path area S1 satisfies the following equation: JPEG2026512187000026.jpg1457 The magnetic resistance R of the receiving unit 受信 The relationship between the above parameters is as follows: JPEG2026512187000027.jpg1253JPEG2026512187000028.jpg2567JPEG2026512187000029.jpg2567JPEG2026512187000030.jpg745Here, R1 is the magnetoresistance of the second annular side plate, R2 is the magnetoresistance of the second annular top plate, and R3 is the magnetoresistance of the second annular bottom plate. The magnetic resistance R of the aforementioned transmitting unit 送信 The relationship between the above parameters is as follows: JPEG2026512187000031.jpg1265JPEG2026512187000032.jpg2570JPEG2026512187000033.jpg2570JPEG2026512187000034.jpg745Here, R4 is the magnetic resistance of the connecting side plate, R5 is the magnetic resistance of the connecting top plate, and R6 is the magnetic resistance of the connecting bottom plate.

[0012] In some embodiments of the present invention, In the case of JPEG2026512187000035.jpg826, the magnetoresistance of the air gap of the wireless transmission mechanism is R. δ H -1 The width of the air gap is L mm, the vacuum permeability is u0 H / m, and the magnetic resistance R of the air gap is... δ It satisfies the following equation, JPEG2026512187000036.jpg646 Here, R7 is the magnetoresistance of the air gap between the connecting top plate and the second annular top plate, R8 is the magnetoresistance of the air gap between the connecting bottom plate and the second annular bottom plate, and K2 is the correction coefficient for magnetoresistance, satisfying 0.2 ≤ K2 ≤ 3. Based on the structural parameters of the transmitting and receiving magnets, T 1a <T 2a In this case, T7 = T 1a And so, T 1a >T 2a In this case, T7 = T 2a And so, T 1b <T 2b In this case, T8 = T 1b And so, T 1b >T 2b In this case, T8 = T 2b Therefore, R7 and R8 satisfy the following relationship: JPEG2026512187000037.jpg20146JPEG2026512187000038.jpg32136 Here, m is 7 or 8, and parameters β, γ, and a satisfy the following equation: JPEG2026512187000039.jpg1858JPEG2026512187000040.jpg1858JPEG2026512187000041.jpg521 JPEG2026512187000042.jpg639JPEG2026512187000043.jpg1138JPEG2026512187000044.jpg1330T 1a =T 2a In this case, T7 = T 1a And so, T 1b =T 2b In this case, T8 = T 1b Therefore, R7 and R8 satisfy the following relationship: JPEG2026512187000045.jpg20146JPEG2026512187000046.jpg14128 Here, m is either 7 or 8.

[0013] In some embodiments of the present invention, the width of the air gap is L mm, and the condition 0.1 ≤ L ≤ 3 is satisfied.

[0014] In some embodiments of the present invention, a first limiting block extending radially outward is formed on the outer circumference of the cutter body, the rear end face of the receiving unit abuts against the front end face of the first limiting block, a second limiting block is connected to the front end face of the receiving unit, the second limiting block is arranged to surround the cutter body, and a second housing slot for housing the receiving unit is formed between the first limiting block and the second limiting block.

[0015] In some embodiments of the present invention, the wireless transmission mechanism includes a transmitting frame, the transmitting frame is provided on the outer circumference of the cutter body, a first housing slot is provided on the end face of the transmitting frame facing the cutter body, and a transmitting magnet is housed in the first housing slot.

[0016] In some embodiments of the present invention, a horn is further included, the ultrasonic transducer comprising a piezoelectric vibrator, a screw, and a rear cover, the screw being provided within the cutter body and extending axially from the cutter body, the rear end of the horn being fixedly connected to the screw, the piezoelectric vibrator being fitted onto the screw, and the rear cover being screwed onto the screw and, together with the rear end face of the horn, restricting the position of the piezoelectric vibrator.

[0017] In some embodiments of the present invention, a mounting cavity is provided within the cutter body, and the ultrasonic transducer is provided within the mounting cavity.

[0018] In some embodiments of the present invention, a collet and a nut fitted onto the outer circumference of a machining tool are further included, wherein the front end of the horn is provided with an insertion hole extending to the rear end, the inner surface of the insertion hole is conical in shape, decreasing in diameter from front to rear, the collet is insertable into the insertion hole together with the machining tool, and the nut is screwed onto the horn and can lock the machining tool by contacting the collet.

[0019] In some embodiments of the present invention, the collet includes a frustoconical portion that fits into the insertion hole, and the collet has a plurality of first deformation grooves distributed at intervals in the circumferential direction, the first deformation grooves extending to the frustoconical portion or extending along the entire length of the frustoconical portion. The first deformation groove connects the outer and inner surfaces of the collet, and the first deformation groove penetrates the frustoconical portion from the front end surface of the collet towards the rear along the axial direction of the collet, and further extends toward the rear end surface of the collet, with a first gap between the rear groove surface of the first deformation groove and the rear end surface of the collet.

[0020] In some embodiments of the present invention, the collet includes a plurality of second deformation grooves distributed at intervals in the circumferential direction, the second deformation grooves extending to the frustoconical portion or extending along the entire length of the frustoconical portion, and the second deformation grooves and the first deformation grooves are spaced apart and arranged in a staggered pattern. There is a second gap between the front groove surface of the second deformed groove and the front end surface of the collet, and the rear groove surface of the second deformed groove and the rear end surface of the collet are flush.

[0021] Based on the above-described objectives of the invention, the present invention further provides an ultrasonic spindle comprising a first rotary output unit, a processing tool, and the aforementioned internal and external ring type ultrasonic processing apparatus, wherein the rear end of the cutter body is attached to the first rotary output unit, and the processing tool is attached to the ultrasonic transducer.

[0022] Based on the above-described objectives of the invention, the present invention further includes a machine tool body and the aforementioned ultrasonic spindle, wherein the ultrasonic spindle is attached to the machine tool body to provide an ultrasonic machine tool.

[0023] Based on the above-described objectives of the invention, the present invention further includes a casing, a second rotary output unit, a processing tool, and the aforementioned internal and external ring type ultrasonic processing apparatus, wherein the front end surface of the casing is provided with a rearward-extending housing cavity, the rear end of the cutter body is housed in the housing cavity and connected to the output terminal of the second rotary output unit, the cutter body is connected to the casing via the bearing, the internal and external ring type ultrasonic processing apparatus is provided in the housing cavity and connected to the casing, and the processing tool is connected to the ultrasonic transducer, thereby providing an ultrasonic drill. [Effects of the Invention]

[0024] By implementing embodiments of the present invention, the following technical effects can be obtained.

[0025] In the inner and outer ring type ultrasonic processing apparatus according to the present invention, the magnetic flux lines circulate radially in the ultrasonic transmission mechanism by a receiving unit provided on the outer circumference of the cutter body and a transmitting unit provided on the outer circumference of the receiving unit, and the structural parameters of the receiving unit and the transmitting unit satisfy the following relational expression, JPEG2026512187000047.jpg1660 JPEG2026512187000048.jpg1660 In the operating state of the ultrasonic processing machine, the receiving unit receives apparent power Q 受信 It operates with apparent power Q 送信The system operates in such a way that the peak current supplied to the transmitting and receiving units, as well as the apparent power of both, can be matched to the structural parameters and characteristics of the transmitting and receiving units. In the radial circulation path of the magnetic flux lines, the structure of the transmitting unit, and the structure of the receiving unit located inside it, can more reliably transmit and receive magnetic field energy. This allows the energy of the wireless transmission mechanism to be converted more effectively into mechanical vibrations, thereby increasing the transmission efficiency of the wireless transmission mechanism during operation, reducing the rate of temperature rise during operation, and improving the stability of the continuous operation of the device. Furthermore, according to the rational needs of the processing, the amplitude increase of the processing tool attached to the cutter body can be made to closely match the amplitude increase of the apparent power of the wireless transmission mechanism, thereby avoiding the conversion and consumption of energy as heat and improving the energy conversion rate.

[0026] The ultrasonic spindle, ultrasonic machine tool, and ultrasonic drill equipped with the above-described ultrasonic processing apparatus according to the present invention also have the effect of low temperature rise during operation and high stability of continuous operation. [Brief explanation of the drawing]

[0027] The present invention will be described in more detail below with reference to the drawings. Regardless of any particular combination of technical features, all technical features shown in the drawings and / or described below are technical features of the present invention and improve upon them accordingly. Note that in different drawings, the same reference numeral indicates the same or substantially the same component. [Figure 1] This is a schematic diagram of the structure of a preferred embodiment 1 of the present invention. [Figure 2] Figure 1 is a structural front view of the embodiment shown. [Figure 3] This is a schematic partial diagram of the cross-sectional structure of line AA in Figure 2. [Figure 4] This is an enlarged schematic diagram of section B in Figure 3. [Figure 5] Figure 1 is a schematic diagram of a partial structure of the embodiment shown. [Figure 6]This is a schematic diagram of the structure of a transmission frame. [Figure 7] This is a plan view of the receiving magnet in the embodiment shown in Figure 4. [Figure 8] Figure 7 is a cross-sectional view of the CC line. [Figure 9] This is a plan view of the transmitting magnet in the embodiment shown in Figure 4. [Figure 10] Figure 9 is a cross-sectional view of the DD line. [Figure 11] Figure 1 is an exploded view of a partial structure in the embodiment shown. [Figure 12] This is a schematic diagram of the collet structure. [Figure 13] This is a schematic diagram of a partial structure of a preferred embodiment 2 of the present invention. [Figure 14] Figure 13 is a schematic diagram of the structure of the transmitting magnet in the embodiment shown. [Figure 15] Figure 13 is a plan view of the connecting top plate in the embodiment shown. [Figure 16] Figure 13 is a side view of the transmitting magnet in the embodiment shown. [Figure 17] Figure 13 is a front view of the transmitting magnet in the embodiment shown. [Figure 18] This is a cross-sectional view of a preferred embodiment 4 of the present invention. [Figure 19] This is an enlarged schematic diagram of section E in Figure 18. [Modes for carrying out the invention]

[0028] Specific embodiments of the present invention will be described in more detail below with reference to the drawings and examples. The following embodiments are for illustrative purposes only and do not limit the scope of the present invention.

[0029] First, the orientations such as "top," "bottom," "upward," and "downward" as described herein are defined based on the orientation in each drawing and are relative concepts; therefore, they can change depending on their location and usage, and these orientations or other orientations should not be understood as restrictive terms. Also, the term "includes" does not exclude other elements or steps, and "one" or "one" does not exclude multiple cases.

[0030] Furthermore, it should be noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the drawings, can be combined with other embodiments of the invention not directly mentioned herein.

[0031] Furthermore, while terms such as "first," "second," etc., are used in this specification to describe various types of information, it should be understood that this information is not limited to these terms, and these terms are used solely to distinguish information of the same kind from one another. For example, as long as it does not depart from the scope of the present invention, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information.

[0032] As shown in Figures 1 to 4 and Figures 7 to 10, an internal and external ring-type ultrasonic processing apparatus (hereinafter simply referred to as the ultrasonic processing apparatus 10) according to one embodiment of the present invention includes a cutter body 1, an ultrasonic transducer 2, and a wireless transmission mechanism 3. The rear end of the cutter body 1 is attached to a first rotational output unit 110 and rotates in synchronization with the first rotational output unit 110. In this way, the first rotational output unit 110, as a rotational output device in this embodiment, is connected to the cutter body 1 and outputs torque.

[0033] Here, the wireless transmission mechanism 3 is provided on the outer circumference of the cutter body 1, and specifically, the wireless transmission mechanism 3 in this embodiment includes a transmitting unit 31 and a receiving unit 32. The receiving unit 32 includes a receiving coil 321 and a receiving magnet 322 for receiving the magnetic field from the transmitting unit 31, and is provided on the outer circumference of the cutter body 1. The transmitting unit 31 includes a transmitting coil 311 and a transmitting magnet 312 that generates a magnetic field based on the current of the transmitting coil 311, and is provided on the outer circumference of the receiving unit 32, with the transmitting unit 31 facing the receiving unit 32 such that an air gap 4 is formed between them.

[0034] Specifically, the transmitting unit 31 is a complete or incomplete ring shape that surrounds the outer circumference of the cutter body 1. The angle at which the transmitting unit 31 surrounds the outer circumference of the cutter body 1 is θ. The file satisfies the criteria JPEG2026512187000049.jpg819, preferably, JPEG2026512187000050.jpg727θ=π or θ=2π, where θ is the angle of the central angle corresponding to the transmitting magnet 312 that extends along the circumferential direction of the cutter body 1. Example 1

[0035] In this embodiment 1, θ = 2π, and as shown in Figures 7 to 10, a first wiring slot 312d is provided on the end face of the transmitting magnet 312 facing the cutter body 1, surrounding the outer circumference of the cutter body 1, and the transmitting coil 311 is housed in the first wiring slot 312d. Specifically, in this embodiment 1, the transmitting magnet 312 includes a first annular side plate 312a, a first annular top plate 312b, and a first annular bottom plate 312c, the first annular top plate 312b being connected to the rear edge of the first annular side plate 312a, and the first annular bottom plate 312c being connected to the front edge of the first annular side plate 312a, and a first wiring slot 312d opening toward the receiving unit 32 is formed between the first annular side plate 312a, the first annular top plate 312b, and the first annular bottom plate 312c. Here, the thickness of the first ring-shaped top plate 312b is T. 2amm, the thickness of the first annular base plate 312c is T 2b The inner diameter of the transmitting magnet 312 is D4mm, the outer diameter of the transmitting magnet 312 is D6mm, the length of the opening of the first wiring slot 312d extending axially from the cutter body 1 is B2mm, the depth of the first wiring slot 312d is E2mm, and the diameter of the first wiring slot 312d is D5mm.

[0036] A second wiring slot 322d surrounding the cutter body 1 is provided on the end face of the receiving magnet 322 facing the transmitting unit 31, and the receiving coil 321 is housed in the second wiring slot 322d. Specifically, in this embodiment 1, the receiving magnet 322 includes a second annular side plate 322a, a second annular top plate 322b, and a second annular bottom plate 322c, the second annular top plate 322b being connected to the rear edge of the second annular side plate 322a, and the second annular bottom plate 322c being connected to the front edge of the second annular side plate 322a, and a second wiring slot 322d opening toward the transmitting unit 31 is formed between the second annular side plate 322a, the second annular top plate 322b, and the second annular bottom plate 322c. Here, the thickness of the second ring-shaped top plate 322b is T. 1a mm, the thickness of the second annular base plate 322c is T 1b The inner diameter of the receiving magnet 322 is D1 mm, the outer diameter of the receiving magnet 322 is D3 mm, the inner diameter of the second wiring slot 322d is D2 mm, the length of the opening of the second wiring slot 322d extending axially from the cutter body 1 is B1 mm, and the depth of the second wiring slot 322d is E1 mm.

[0037] Preferably, the parameters of the transmitting magnet 312 and receiving magnet 322 can be measured by a dial caliper gauge manufactured by Sanpo Co., Ltd. or other tools for measuring length.

[0038] Let u be the relative permeability of both the transmitting magnet 312 and the receiving magnet 322, u0H / m be the vacuum permeability, and S1 be the magnetic path area of ​​the second annular side plate 322a. The magnetic path area S1 satisfies the following equation: JPEG2026512187000051.jpg2355(1) The magnetic resistance R of the receiving unit 32 受信The relationship between the above parameters is as follows: JPEG2026512187000052.jpg1553(2) JPEG2026512187000053.jpg2575(3) JPEG2026512187000054.jpg2575(4) JPEG2026512187000055.jpg745(5) In this embodiment 1, R1 is the magnetic resistance of the second annular side plate 322a, R2 is the magnetic resistance of the second annular top plate 322b, and R3 is the magnetic resistance of the second annular bottom plate 322c. Furthermore, the magnetic resistance R of the transmitting unit 31 送信 The relationship between the above parameters is as follows: JPEG2026512187000056.jpg28128(6) JPEG2026512187000057.jpg2575(7) JPEG2026512187000058.jpg2575(8) JPEG2026512187000059.jpg744(9) In this embodiment 1, R4 is the magnetic resistance of the first annular side plate 312a, R5 is the magnetic resistance of the first annular top plate 312b, and R6 is the magnetic resistance of the first annular bottom plate 312c.

[0039] In this embodiment 1, the magnetic resistance of the air gap of the wireless transmission mechanism 3 is R δ H -1 The width of the air gap is L mm, the vacuum permeability is u0 H / m, and the magnetic resistance R of the air gap is... δ The relationship between the above parameters is as follows: JPEG2026512187000060.jpg745(10) Here, R7 is the magnetic resistance of the air gap between the first annular top plate 312b and the second annular top plate 322b, R8 is the magnetic resistance of the air gap between the first annular bottom plate 312c and the second annular bottom plate 322c, K2 is the correction coefficient of the magnetic resistance of the air gap, and 0.2 ≤ K2 ≤ 3 is satisfied. The wireless transmission mechanism 3 has various air gaps, and the magnetic path shape of the magnetic field also varies depending on the air gap, making the division of the magnetic field complex. To make the magnetic resistance of the air gap in the case of various air gaps more accurate, the parameter K2 is introduced to correct the magnetic resistance of the air gap.

[0040] Based on the parameters of the transmission magnet 312 and the reception magnet 322 described above, T 1a <T 2a in the case of, T7 = T 1a and becomes, T 1a >T 2a in the case of, T7 = T 2a and becomes, T 1b <T 2b in the case of, T8 = T 1b and becomes, T 1b >T 2b in the case of, T8 = T 2b and becomes, R7 and R8 satisfy the following relational expressions.

[0041] JPEG2026512187000061.jpg22128(11) JPEG2026512187000062.jpg34128(12) Here, m is 7 or 8, and F m is the fringing magnetic flux coefficient for correcting the influence of the magnetic resistance of the fringing air gap on the magnetic resistance of the air gap.

[0042] Furthermore, the parameter β and the parameter γ satisfy the following equations.

[0043] JPEG2026512187000063.jpg1858(13) JPEG2026512187000064.jpg1858(14) Here, parameter a, parameter b, and parameter c are used to describe the area of the air gap between the first annular top plate 312b and the second annular top plate 322b, and the area of the air gap between the first annular bottom plate 312c and the second annular bottom plate 322c. Specifically, they are as follows.

[0044] JPEG2026512187000065.jpg521(15) JPEG2026512187000066.jpg639(16) JPEG2026512187000067.jpg1238(17) Here, parameter k is used to describe the shape of the air gap between the first annular top plate 312b and the second annular top plate 322b, and the air gap between the first annular bottom plate 312c and the second annular bottom plate 322c. Specifically, it is as follows.

[0045] JPEG2026512187000068.jpg1330(18) T 1a =T 2a In the case of, T7 = T 1a and thus, T 1b =T 2b In the case of, T8 = T 1b and thus, R7 and R8 satisfy the following relational expressions.

[0046] JPEG2026512187000069.jpg21130(19) JPEG2026512187000070.jpg14128(20) Here, m is 7 or 8.

[0047] Based on the representation of parameters a, b, c, and k, the shape and area of ​​both the air gap between the first annular top plate 312b and the second annular top plate 322b, and the air gap between the first annular bottom plate 312c and the second annular bottom plate 322c can be expressed by relations (15) to (18). Based on this, the magnetic resistance of the air gap between the first annular top plate 312b and the second annular top plate 322b, and the magnetic resistance of the air gap between the first annular bottom plate 312c and the second annular bottom plate 322c can be obtained by relations (11) to (12) into which parameters a, b, c, and k are introduced.

[0048] The width L of the air gap is the distance between the transmitting unit 31 and the receiving unit 32, and preferably satisfies 0.1 ≤ L ≤ 3. Specifically, in various embodiments, the width L of the air gap may be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm, and preferably the width L of the air gap is 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or 1.1 mm.

[0049] The inductance of the transmitting unit 31 is L d送信 H, the inductance of the receiving unit 32 is L d受信 H, the number of turns of the transmitting coil 311 is N 送信 The number of turns of the receiving coil 321 is N 受信 The magnetic resistance of the air gap of the wireless transmission mechanism 3 is R δ H -1 The magnetic resistance of the transmitting unit 31 is R 送信 H -1 The magnetic resistance of the receiving unit 32 is R 受信 H -1 Therefore, the following equation is obtained.

[0050] JPEG2026512187000071.jpg1659(21) JPEG2026512187000072.jpg1659(22) Here, 2 ≤ N 送信 ≤240, 2 ≤N 受信 It satisfies ≤ 240.

[0051] Furthermore, based on the above structure of the ultrasonic processing apparatus 10 disclosed in this embodiment 1, the frequency of the electrical signal input to the receiving unit 32 is fHz, and the peak current supplied to the transmitting unit 31 is I 送信 A, the peak current supplied to the receiving unit 32 is I 受信 A. The apparent power of the transmitting unit 31 is Q. 送信 VA, apparent power of receiving unit 32 is Q 受信 If we denote it as VA, the above parameters satisfy the following relationship.

[0052] JPEG2026512187000073.jpg967(23) JPEG2026512187000074.jpg967(24) Substituting the above relations (21) and (22) into relations (23) and (24), respectively, we obtain the apparent power Q of the transmitting unit 31 in this embodiment 1. 送信 The relationship between the above parameters and the apparent power Q of the receiving unit 32 is given by the above parameter relationship formula. 受信 The relationship between the above parameters can be obtained.

[0053] JPEG2026512187000075.jpg1660(25) JPEG2026512187000076.jpg1660(26) Furthermore, in relational equations (1) to (26), there are parameters that can only be obtained by measuring the ultrasonic processing device 10, so K1 is set to avoid errors present in the measurement data. K1 is a correction coefficient that satisfies 0.5 ≤ K1 ≤ 1.5, and the apparent power Q of the transmitting unit 31 due to human errors present when measuring the data, such as measurement errors in the frequency of the electrical signal input to the receiving unit 32 and measurement errors in the supplied peak current. 送信 , apparent power Q of receiving unit 32 受信It is used to correct the error between the optimal apparent power and the frequency of the electrical signal, and generally the measurement error of the peak current supplied is 15%, and the measurement error of the peak current is 20%. Therefore, if there is no error in the measured parameters, K1=1 is preferable.

[0054] Thus, when the structural parameters of the transmitting unit 31 and receiving unit 32 of the ultrasonic processing apparatus 10 according to this embodiment 1 satisfy relational equations (25) and (26), the apparent power of both the transmitting unit 31 and the receiving unit 32 is Q, due to the peak current supplied to the transmitting unit 31 and the receiving unit 32. 送信 and Q 受信 This matches the structure and characteristics of the transmitting unit 31 and the receiving unit 32, and together they form a stable energy transfer model. When this energy transfer model is reflected in the operating state, the transmitting unit 31 Q 送信 The apparent power of the receiving unit 32 is Q 受信 When operating with apparent power, the peak current supplied to them, and these apparent powers, can match the structural parameters and characteristics of both the transmitting unit 31 and the receiving unit 32, thereby better converting the energy of the wireless transmission mechanism 3 into mechanical vibrations, improving the transmission efficiency of the wireless transmission mechanism 3 in operation, reducing the temperature rise of the wireless transmission mechanism 3 in operation, improving the stability of the continuous operation of the equipment, furthermore, avoiding the energy being converted into heat and consumed, improving the energy conversion rate, and more energy being used effectively for work, resulting in a larger amplitude when the machining tool 20 is in operation, and improving machining efficiency.

[0055] Specifically, when the structural parameters of the receiving unit 32 and transmitting unit 31 of the ultrasonic processing apparatus 10 according to Embodiment 1 of the present invention satisfy the above relational expression, that is, when the structural parameters of the receiving unit 32 and transmitting unit 31 match the peak current supplied to them and their apparent power, two sets of tests were conducted with reference to the following table to verify that, compared to a conventional ultrasonic processing apparatus, the heating rate of the receiving unit 32 and transmitting unit 31 in the operating state of Embodiment 1 of the present invention is slower, and the amplitude increase of the processing tool 20 is approximately equal to the amplitude increase of the apparent power.

[0056] Tables 1A and 1B show that the first ultrasonic processing apparatus was tested based on the structure of the ultrasonic processing apparatus 10 described above, and the apparent power Q of the transmitting unit 31 of the first ultrasonic processing apparatus was calculated by combining relational equations (1) to (26). 1送信 , and apparent power Q of the receiving unit 32 1受信 I obtained it.

[0057] JPEG2026512187000077.jpg1766 JPEG2026512187000078.jpg1766 Furthermore, by combining the correction factor K1 Q 1送信 Q 1受信 After obtaining the set range and supplying current to the first ultrasonic processing apparatus, the transmitting unit 31 receives apparent power Q 2送信 The receiving unit 32 receives apparent power Q 2受信 After operating for a predetermined time t, the temperature rise during the operation of the first ultrasonic processing device within the predetermined time was measured, and the measurement results were obtained. Here, Q 2送信 Q 1送信 It is within the setting range, Q 2受信 Q 1受信 It falls within the specified range, specifically satisfying 0.5 ≤ K1 ≤ 1.5.

[0058] Furthermore, referring to Tables 2A and 2B, the second ultrasonic processing apparatus is positioned, and based on the structure of the transmitting unit 31 and receiving unit 32 of the second ultrasonic processing apparatus, the apparent power Q of the transmitting unit 31 of the second ultrasonic processing apparatus is calculated according to relational equations (1) to (26). 3送信and apparent power Q of receiving unit 32 3受信 I obtained it.

[0059] JPEG2026512187000079.jpg1766 JPEG2026512187000080.jpg1766 Furthermore, by combining the correction factor K1, Q 3送信 Q 3受信 The setting range was obtained.

[0060] After current is supplied to the second ultrasonic processing device, the transmitting unit 31 transmits apparent power Q 4送信 The receiving unit 32 receives apparent power Q 4受信 After operating for a predetermined time t, the temperature rise during the operation of the second ultrasonic processing device within the predetermined time was measured, and the measurement result was obtained. At this time, Q 4送信 Q 3送信 Not within the setting range, Q 4受信 Q 3受信 It is outside the range of the settings.

[0061] The testing method is as follows:

[0062] The ambient temperature is set to 24°C, the width L of the air gap between the transmitting unit 31 and the receiving unit 32 of the first ultrasonic processing device, and the width L of the air gap between the transmitting unit 31 and the receiving unit 32 of the second ultrasonic processing device are both set to 1 mm, the transmitting unit 31 is connected to the ultrasonic generator, the receiving unit 32 is connected to the ultrasonic transducer 2, and the receiving unit 32 and the transmitting unit 31 are connected to a Yokogawa Powerscope, and the supplied peak current I 送信 , I 受信 , and apparent power Q 送信 Q 受信 These signals were collected, and the frequency f of the electrical signal input to the receiving unit 32 was detected using a TEKTRONIX oscilloscope.

[0063] [Table 1A] [Table 1B] [Table 2A] [Table 2B] Tables 1A and 1B show the temperature rise data of the receiving unit 32 and the transmitting unit 31, as well as the amplitude data generated in the connected processing tool 20, during the process of supplying various peak currents at a preset ambient temperature and operating them continuously for a preset time (10 min) in a first ultrasonic processing apparatus designed to satisfy the above-mentioned relational equations (25) and (26) of the present invention. Tables 2A and 2B show the temperature rise data of the receiving unit 32 and the transmitting unit 31, as well as the amplitude data generated in the connected processing tool 20, during the process of supplying various currents at a preset ambient temperature and operating them continuously for a preset time (10 min) in a second ultrasonic processing apparatus designed not to satisfy the above-mentioned relational equations (25) and (26) of the present invention.

[0064] As can be seen from Tables 1A and 1B, when the structural parameters of the transmitting unit 31 and the receiving unit 32 match the frequency of the electrical signal input to the receiving unit 32, that is, when the ultrasonic processing apparatus has a configuration that satisfies relations (25) and (26) of the present invention, the structural parameters and characteristics of both the transmitting unit 31 and the receiving unit 32 can be operated to match the peak current supplied to both and the apparent power of both, thereby allowing the ultrasonic processing apparatus to convert the energy of its wireless transmission mechanism 3 more effectively into mechanical vibrations during operation, improving the transmission efficiency of the wireless transmission mechanism 3 in its operating state, reducing the rate of heating in the operating state of the wireless transmission mechanism 3, improving the stability of the continuous operation of the equipment, and furthermore, making it possible to make the amplitude increase of the processing tool 20 attached to the cutter body 1 approximately match the amplitude increase of the apparent power of the wireless transmission mechanism 3, thereby avoiding the energy being converted into heat and consumed, and enabling the wireless transmission mechanism 3 to operate with a high energy conversion rate.

[0065] As can be seen from Tables 2A and 2B, if the structural parameters of the transmitting unit 31 and the receiving unit 32 do not match the frequency of the electrical signal input to the receiving unit 32, that is, if the transmitting unit 31 and the receiving unit 32 of the second ultrasonic processing apparatus are configured not to satisfy relational equations (25) and (26) of the present invention, then during operation, the proportion of thermal energy consumption in the energy of the wireless transmission mechanism 3 of such a second ultrasonic processing apparatus will be high. As a result, the heating rate of such a second ultrasonic processing apparatus will be much faster than the heating rate of the first ultrasonic processing apparatus described in Tables 1A and 1B. Furthermore, the difference between the amplitude increase and the apparent power increase in the processing tool 20 of such a second ultrasonic processing apparatus will be large. Consequently, when the apparent power of such a second ultrasonic processing apparatus increases, the change in amplitude of the processing tool 20 will be delayed and small, and the overall energy effective conversion rate of the wireless transmission mechanism 3 will be low.

[0066] In this embodiment 1, manganese zinc ferrite is used as the transmitting magnet 312 and receiving magnet 322 of the first ultrasonic processing apparatus and the second ultrasonic processing apparatus, respectively, and the relative permeability u is 2500. In other embodiments, the transmitting magnet 312 may be manufactured from one of the following materials: ferrite, neodymium iron boron, high-frequency ceramic material, powder metallurgy material, amorphous and nanocrystalline alloy, or cobalt iron, and the receiving magnet 322 may be manufactured from one of the following materials: ferrite, neodymium iron boron, high-frequency ceramic material, powder metallurgy material, amorphous and nanocrystalline alloy, or cobalt iron. Based on the above relational equation, the relative permeability u of the corresponding material can be introduced depending on the material used to manufacture the transmitting magnet 312 and the receiving magnet 322.

[0067] In this embodiment 1, the apparent power Q of the first ultrasonic processing apparatus and the second ultrasonic processing apparatus is... 2送信 Q 2受信 Q 4送信 Q 4受信 , supplied peak current I 送信 , I 受信 All measurements were taken using a Yokogawa PowerScope (model number: PX8000), and specifically, this embodiment 1 provides the following measurement method.

[0068] The CH1 voltage probe of the Yokogawa PowerScope is connected to the positive and negative terminals of the transmitting unit 31, respectively, and the CH1 current probe is connected to the transmitting unit 31, with the direction of the CH1 current probe set to allow current to flow from the positive terminal to the negative terminal.

[0069] Connect the CH2 voltage probe of the Yokogawa PowerScope to the positive and negative terminals of the receiving unit 32, respectively, and connect the CH2 current probe to the receiving unit 32, with the direction of the CH2 current probe set to flow from the positive terminal to the negative terminal.

[0070] Press the ELEM1 button to turn on the CH1 measurement channel, press the U1 button to select voltage measurement, press the I1 button to select current measurement, and press the P1 button to select power measurement.

[0071] Press the ELEM2 button to turn on the CH2 measurement channel, press the U2 button to select voltage measurement, press the I2 button to select current measurement, and press the P2 button to select power measurement.

[0072] After pressing the "MODE" button, select "Numeric+Wave" mode from the "DISPLAY MODE" menu, then press the "SETTING" button and set "Format" to "16 Items" in the "NUMERIC SETTING" menu.

[0073] Press the "START / STOP" button to begin the test, and obtain the apparent power of the transmitting unit 31 and the receiving unit 32, and the supplied peak current from the data displayed on the screen. Here, I+pk1 represents the CH1 current peak value, i.e., the peak current supplied to the transmitting unit 31; S1 represents the CH1 apparent power, i.e., the apparent power of the transmitting unit 31; I+pk2 represents the CH2 current peak value, i.e., the peak current supplied to the receiving unit 32; and S2 represents the CH2 apparent power, i.e., the apparent power of the receiving unit 32.

[0074] Furthermore, in the first ultrasonic processing apparatus and the second ultrasonic processing apparatus, the frequency f of the electrical signal input to the receiving unit 32 is measured by a TEKTRONIX oscilloscope (model number: MDO3204). Specifically, in this embodiment 1, the following measurement method is provided.

[0075] Insert the differential probe into the CH1 port and connect it to the positive and negative terminals of the receiving unit 32, respectively.

[0076] Turn on the "Menu" option, select "Edge" from the "Type" item, select "1" from the "Source" item, select "AC" from the "Join" item, select "Rising Edge" from the "Gradient" item, set the "Level" item to "0V", and select "Automatic" from the "Mode" option.

[0077] Press button "1" to turn on the CH1 measurement channel, select AC coupling mode from the options that pop up at the bottom of the screen, press the "Measure" button in the Wave Inspector button area, select "Add Measurement" from the options that pop up at the bottom of the screen, select "1" from the "Source" item, select "Frequency" from the "Measurement Type" item, and then select "OK Add Measurement".

[0078] Press "Run / Stop" to start the test. After the ultrasonic power sweep is complete, read and record the measured frequency from the screen. This frequency will be the frequency f of the electrical signal input to the receiving unit 32.

[0079] Furthermore, in this embodiment 1, the machining tools 20 used in the first ultrasonic machining apparatus and the second ultrasonic machining apparatus are all D6 flat-bottomed cutters with a clamping length of 20 mm. Note that in the above test method, other machining tools 20 may be used, and corresponding clamping lengths may be set. For example, a D4 tungsten steel rod may be used as the machining tool 20 with a clamping length of 20 mm, or a D16 flat-bottomed cutter may be used as the machining tool 20 with a clamping length of 50 mm. Example 2

[0080] As shown in Figures 13 to 17, this embodiment 2 is, The file is JPEG2026512187000085.jpg712, This embodiment 2 differs from embodiment 1 in that it is within the range of JPEG2026512187000086.jpg621. In embodiment 2, a first wiring slot 312d is provided on the end face of the transmitting magnet 312 facing the receiving unit 32 so as to surround the cutter body 1, and the transmitting coil 311 is housed in the first wiring slot 312d. Specifically, in embodiment 2, the transmitting magnet 312 includes a connecting side plate 312e, a connecting top plate 312f, and a connecting bottom plate 312g.

[0081] As shown in Figures 14 to 17, the connecting top plate 312f is connected to the rear edge of the connecting side plate 312e, and the end face of the connecting top plate 312f facing the receiving magnet 322 is provided with a top arc surface 3121 that matches the receiving magnet 322, and in the direction along the chord length direction of the top arc surface 3121, the chord length of the top arc surface 3121 is smaller than the length of the connecting top plate 312f. The connecting base plate 312g is connected to the front edge of the connecting side plate 312e, and the end face of the connecting base plate 312g facing the receiving magnet 322 is provided with a bottom arc surface 3122 that fits the receiving magnet 322, and in the direction along the chord length direction of the bottom arc surface 3122, the chord length of the bottom arc surface 3122 is smaller than the length of the connecting base plate 312g, and the top arc surface 3121 and the bottom arc surface 3122 allow the transmitting magnet 312 to surround the outer circumference of the receiving magnet 322 and to be in close proximity to the receiving magnet 322. Between the connecting side plate 312e, the connecting top plate 312f, and the connecting bottom plate 312g, a first wiring slot 312d is formed that opens toward the receiving unit 32. The transmitting coil 311 is positioned to surround the connecting side plate 312e, with a portion of it embedded in the first wiring slot 312d. Furthermore, because the length of the connecting side plate 312e is shorter than the length of the connecting top plate 312f, and the length of the connecting side plate 312e is shorter than the length of the connecting bottom plate 312g, when the transmitting coil 311 is wound around the connecting side plate 312e, the transmitting coil 311 is enclosed by the connecting top plate 312f and the connecting bottom plate 312g. Based on this structure, the magnetic field lines generated by energizing the transmitting coil 311 exit from the front end surface of the connecting side plate 312e, proceed toward the receiving magnet 322, are transmitted by the receiving magnet 322, and then return to the rear end surface of the connecting side plate 312e.

[0082] Here, the thickness of the connecting side plate 312e is A2mm, the length of the connecting side plate 312e is H3mm, and the thickness of the connecting top plate 312f is T 2a The thickness of the connecting base plate is 312 mm. 2bIn this embodiment 2, the minimum width from the outermost edge of the transmitting magnet 312 to the inner arc surface is B3 mm, the diameter of the top arc surface 3121 is D4 mm, the length of the opening of the first wiring slot 312d extending axially from the cutter body 1 is B2 mm, and the depth of the first wiring slot 312d is E2 mm.

[0083] As shown in Figures 7 and 8, a second wiring slot 322d is provided on the end face of the receiving magnet 322 facing the transmitting unit 31, surrounding the cutter body 1, and the receiving coil 321 is housed in the second wiring slot 322d. Specifically, in this embodiment 2, the receiving magnet 322 includes a second annular side plate 322a, a second annular top plate 322b, and a second annular bottom plate 322c, the second annular top plate 322b being connected to the rear edge of the second annular side plate 322a, and the second annular bottom plate 322c being connected to the front edge of the second annular side plate 322a, and a second wiring slot 322d opening toward the transmitting unit 31 is formed between the second annular side plate 322a, the second annular top plate 322b, and the second annular bottom plate 322c. Here, the thickness of the second ring-shaped top plate 322b is T. 1a mm, the thickness of the second annular base plate 322c is T 1b The inner diameter of the receiving magnet 322 is D1 mm, the outer diameter of the receiving magnet 322 is D3 mm, the inner diameter of the second wiring slot 322d is D2 mm, the length of the opening of the second wiring slot 322d extending axially from the cutter body 1 is B1 mm, and the depth of the second wiring slot 322d is E1 mm.

[0084] In this embodiment 2, the relative permeability of both the transmitting magnet 312 and the receiving magnet 322 is u, the vacuum permeability is u0H / m, and the magnetic path area of ​​the second annular side plate 322a is S1, and the magnetic path area S1 satisfies the following equation, JPEG2026512187000087.jpg1458(27) The magnetic resistance R of the receiving unit 32 受信 The relationship between the above parameters is as follows: JPEG2026512187000088.jpg1253(28) JPEG2026512187000089.jpg2567(29) JPEG2026512187000090.jpg2567(30) JPEG2026512187000091.jpg745(31) In this embodiment 2, R1 is the magnetic resistance of the second annular side plate 322a, R2 is the magnetic resistance of the second annular top plate 322b, and R3 is the magnetic resistance of the second annular bottom plate 322c. Furthermore, the magnetic resistance R of the transmitting unit 31 送信 The relationship between the above parameters is as follows: JPEG2026512187000092.jpg1265(32) JPEG2026512187000093.jpg2570(33) JPEG2026512187000094.jpg2570(34) JPEG2026512187000095.jpg744(35) In this embodiment 2, R4 is the magnetic resistance of the connecting side plate 312e, R5 is the magnetic resistance of the connecting top plate 312f, and R6 is the magnetic resistance of the connecting bottom plate 312g. The magnetic resistance of the air gap in the wireless transmission mechanism 3 is R. δ H -1 Let Lmm be the width of the air gap, and let R be the magnetic resistance of the air gap. δ The relationship between the above parameters is as follows: JPEG2026512187000096.jpg645(36) Here, R7 is the magnetic resistance of the air gap between the connecting top plate 312f and the second annular top plate 322b, R8 is the magnetic resistance of the air gap between the connecting bottom plate 312g and the second annular bottom plate 322c, and K2 is the correction coefficient for magnetic resistance, satisfying 0.2 ≤ K2 ≤ 3.

[0085] T 1a <T 2a In this case, T7 = T 1a And so, T 1a >T 2a In this case, T7 = T 2a And so, T 1b <T2b In this case, T8 = T 1b And so, T 1b >T 2b In this case, T8 = T 2b Therefore, R7 and R8 satisfy the following relationship.

[0086] JPEG2026512187000097.jpg16130(37) JPEG2026512187000098.jpg28128(38) Here, m is 7 or 8, and F m This is the fringing flux coefficient.

[0087] Parameter β and parameter γ satisfy the following equations.

[0088] JPEG2026512187000099.jpg1858(39) JPEG2026512187000100.jpg1858(40) Here, parameters a, b, and c are used to describe the area of ​​the air gap between the connecting top plate 312f and the second annular top plate 322b, and the area of ​​the air gap between the connecting bottom plate 312g and the second annular bottom plate 322c, and specifically as follows.

[0089] JPEG2026512187000101.jpg521(41) JPEG2026512187000102.jpg639(42) JPEG2026512187000103.jpg1138(43) Here, parameter k is used to describe the shape of the air gap between the connecting top plate 312f and the second annular top plate 322b, and the air gap between the connecting bottom plate 312g and the second annular bottom plate 322c, and is specifically as follows.

[0090] JPEG2026512187000104.jpg1330(44) T 1a =T 2aIn this case, T7 = T 1a And so, T 1b =T 2b In this case, T8 = T 1b Therefore, R7 and R8 satisfy the following relationship.

[0091] JPEG2026512187000105.jpg14130(45) JPEG2026512187000106.jpg14128(46) Here, m is either 7 or 8.

[0092] Based on the representation of parameters a, b, c, and k, the shape and area of ​​both the air gap between the connecting top plate 312f and the second annular top plate 322b, and the air gap between the connecting bottom plate 312g and the second annular bottom plate 322c can be expressed by relations (41) to (44). Based on this, the magnetic resistance of the air gap between the connecting top plate 312f and the second annular top plate 322b, and the magnetic resistance of the air gap between the connecting bottom plate 312g and the second annular bottom plate 322c can be obtained by relations (37) to (38) into which parameters a, b, c, and k are introduced.

[0093] The width L of the air gap is the distance between the transmitting unit 31 and the receiving unit 32, and preferably satisfies 0.1 ≤ L ≤ 3. Specifically, in various embodiments, the width L of the air gap may be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm, and preferably the width L of the air gap is 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or 1.1 mm.

[0094] The inductance of the transmitting unit 31 is L d送信 H, the inductance of the receiving unit 32 is L d受信 H, the number of turns of the transmitting coil 311 is N 送信 The number of turns of the receiving coil 321 is N受信 The magnetic resistance of the air gap of the wireless transmission mechanism 3 is R δ H -1 The magnetic resistance of the transmitting unit 31 is R 送信 H -1 The magnetic resistance of the receiving unit 32 is R 受信 H -1 Therefore, the following equation is obtained.

[0095] JPEG2026512187000107.jpg1451(47) JPEG2026512187000108.jpg1451(48) Here, 2 ≤ N 送信 ≤240, 2 ≤N 受信 It satisfies ≤ 240.

[0096] Furthermore, based on the above structure of the ultrasonic processing apparatus 10 disclosed in this embodiment 2, the frequency of the electrical signal input to the receiving unit 32 is fHz, and the peak current supplied to the transmitting unit 31 is I 送信 A, the peak current supplied to the receiving unit 32 is I 受信 A. The apparent power of the transmitting unit 31 is Q. 送信 VA, apparent power of receiving unit 32 is Q 受信 If we denote it as VA, the above parameters satisfy the following relationship.

[0097] JPEG2026512187000109.jpg967(49) JPEG2026512187000110.jpg967(50) Substituting the above relations (47) and (48) into relations (49) and (50), respectively, we obtain the apparent power Q of the transmitting unit 31 in this embodiment 2. 送信 The relationship between the above parameters and the apparent power Q of the receiving unit 32 is given by the above parameter relationship formula. 受信 The relationship between the above parameters can be obtained.

[0098] JPEG2026512187000111.jpg1865(51) JPEG2026512187000112.jpg1868(52) In relational equations (27) to (52), there are parameters that can only be obtained by measuring the ultrasonic processing apparatus 10. Therefore, K1 is set to avoid errors present in the measurement data. K1 is a correction coefficient that satisfies 0.5 ≤ K1 ≤ 1.5 and is used to correct the error between the apparent power of the transmitting unit 31 and the receiving unit 32 and the optimal apparent power due to human errors present when measuring the data, such as measurement errors in the frequency of the electrical signal input to the receiving unit and measurement errors in the supplied peak current. Generally, the measurement error for the frequency of the electrical signal is 15%, and the measurement error for the supplied peak current is 20%. Therefore, if there are no errors in the measured parameters, K1 = 1 is preferable.

[0099] Specifically, when the structural parameters of the receiving unit 32 and transmitting unit 31 of the ultrasonic processing apparatus 10 according to Embodiment 2 of the present invention satisfy the above relational expression, that is, when the structural parameters of the receiving unit 32 and transmitting unit 31 match the peak current supplied to them and their apparent power, two sets of tests were conducted with reference to the following table to verify that, compared to a conventional ultrasonic processing apparatus 10, the heating rate of the receiving unit 32 and transmitting unit 31 in the operating state of Embodiment 2 of the present invention is slower and the amplitude increase of the processing tool 20 is approximately equal to the amplitude increase of the apparent power.

[0100] Tables 3A and 3B show that the third ultrasonic processing apparatus was tested based on the structure of the ultrasonic processing apparatus 10 described above, and the apparent power Q of the transmitting unit 31 was determined by combining relational equations (27) to (52). 5送信 , and apparent power Q of the receiving unit 32 5受信 I obtained it.

[0101] JPEG2026512187000113.jpg1766 JPEG2026512187000114.jpg1766 Furthermore, by combining the correction factor K1 Q 5送信 Q 5受信 After obtaining the set range and supplying current to the third ultrasonic processing device, the transmitting unit 31 outputs apparent power Q 6送信The receiving unit 32 receives apparent power Q 6受信 After operating for a predetermined time t, the temperature rise during the operation of the third ultrasonic processing device within the predetermined time was measured, and the measurement results were obtained. Here, Q 6送信 Q 5送信 It is within the setting range, Q 6受信 Q 5受信 It falls within the specified range, specifically satisfying 0.5 ≤ K1 ≤ 1.5.

[0102] Furthermore, referring to Tables 4A and 4B, the fourth ultrasonic processing apparatus is positioned, and based on the structure of the transmitting unit 31 and receiving unit 32 of the fourth ultrasonic processing apparatus, the apparent power Q of the transmitting unit 31 of the fourth ultrasonic processing apparatus is calculated according to relational equations (27) to (52). 7送信 and apparent power Q of receiving unit 32 7受信 I obtained it.

[0103] JPEG2026512187000115.jpg1766 JPEG2026512187000116.jpg1766 Furthermore, by combining the correction factor K1, Q 7送信 Q 7受信 The setting range was obtained.

[0104] After current is supplied to the fourth ultrasonic processing device, the transmitting unit 31 receives apparent power Q 8送信 The receiving unit 32 receives apparent power Q 8受信 After operating for a predetermined time t, the temperature rise during the operation of the fourth ultrasonic processing device within the predetermined time was measured, and the measurement result was obtained. At this time, Q 8送信 Q 7送信 Not within the setting range, Q 8受信 Q 7受信 It is outside the range of the settings.

[0105] The testing method is as follows:

[0106] The ambient temperature is set to 24°C, the width L of the air gap between the transmitting unit 31 and the receiving unit 32 of the third ultrasonic processing machine, and the width L of the air gap between the transmitting unit 31 and the receiving unit 32 of the fourth ultrasonic processing machine are both set to 0.2 mm, the transmitting unit 31 is connected to the ultrasonic generator, the receiving unit 32 is connected to the ultrasonic transducer 2, and the receiving unit 32 and the transmitting unit 31 are connected to a Yokogawa Powerscope, and the supplied peak current I 送信 , I 受信 , and apparent power Q 送信 Q 受信 These signals were collected, and the electrical signal frequency f input to the receiving unit 32 was detected using a TEKTRONIX oscilloscope.

[0107] [Table 3A] [Table 3B] [Table 4A] [Table 4B] Tables 3A and 3B show the temperature rise data of the receiving unit 32 and the transmitting unit 31, as well as the amplitude data generated in the connected processing tool 20, during the process of supplying various peak currents at a preset ambient temperature and operating them continuously for a preset time (10 min) in a third ultrasonic processing apparatus designed to satisfy the above-mentioned relational equations (51) and (52) of the present invention. Tables 4A and 4B show the temperature rise data of the receiving unit 32 and the transmitting unit 31, as well as the amplitude data generated in the connected processing tool 20, during the process of supplying various currents at a preset ambient temperature and operating them continuously for a preset time (10 min) in a fourth ultrasonic processing apparatus designed not to satisfy the above-mentioned relational equations (51) and (52) of the present invention.

[0108] As can be seen from Tables 3A and 3B, if the structural parameters of the transmitting unit 31 and the receiving unit 32 match the frequency of the electrical signal input to the receiving unit 32, that is, if the ultrasonic processing apparatus has a configuration that satisfies relational equations (51) and (52) of the present invention, then the structural parameters and characteristics of both the transmitting unit 31 and the receiving unit 32 can be operated to match the peak current supplied to both and the apparent power of both. Thereafter, during operation, the ultrasonic processing apparatus can convert the energy of its wireless transmission mechanism 3 more effectively into mechanical vibrations, improve the transmission efficiency of the wireless transmission mechanism 3 in operation, reduce the rate of heating in operation of the wireless transmission mechanism 3, improve the stability of continuous operation of the apparatus, and furthermore, make the amplitude increase of the processing tool 20 attached to the cutter body 1 approximately match the amplitude increase of the apparent power of the wireless transmission mechanism 3, thereby avoiding the energy being converted into heat and consumed, and enabling the wireless transmission mechanism 3 to operate with a high energy conversion rate.

[0109] As can be seen from Tables 4A and 4B, if the structural parameters of the transmitting unit 31 and the receiving unit 32 do not match the frequency of the electrical signal input to the receiving unit 32, that is, if the transmitting unit 31 and the receiving unit 32 of the fourth ultrasonic processing apparatus are configured not to satisfy relational equations (51) and (52) of the present invention, then during operation, the proportion of thermal energy consumption in the energy of the wireless transmission mechanism 3 of such a fourth ultrasonic processing apparatus will be high. As a result, the heating rate of such a fourth ultrasonic processing apparatus will be much faster than that of the third ultrasonic processing apparatus described in Tables 3A and 3B. Furthermore, the difference between the amplitude increase and the apparent power increase in the processing tool 20 of such a fourth ultrasonic processing apparatus will be large. Consequently, when the apparent power of such a fourth ultrasonic processing apparatus increases, the change in amplitude of the processing tool 20 will be delayed and small, and the overall energy effective conversion rate of the wireless transmission mechanism 3 will be low.

[0110] In this embodiment 2, manganese zinc ferrite is used as the transmitting magnet 312 and receiving magnet 322 of the third ultrasonic processing apparatus and the fourth ultrasonic processing apparatus, respectively, and the relative permeability u is 2500. In other embodiments, the transmitting magnet 312 may be manufactured from one of the following materials: ferrite, neodymium iron boron, high-frequency ceramic material, powder metallurgy material, amorphous and nanocrystalline alloy, or cobalt iron, and the receiving magnet 322 may be manufactured from one of the following materials: ferrite, neodymium iron boron, high-frequency ceramic material, powder metallurgy material, amorphous and nanocrystalline alloy, or cobalt iron. Based on the above relational equation, the relative permeability u of the corresponding material can be introduced depending on the material used to manufacture the transmitting magnet 312 and the receiving magnet 322.

[0111] In this embodiment 2, the apparent power Q of the third ultrasonic processing apparatus and the fourth ultrasonic processing apparatus is... 6送信 Q 6受信 Q 8送信 Q 8受信 , supplied peak current I 送信 , I 受信 All measurements were performed using a Yokogawa Powerscope (model number: PX8000), and the measurement method was as described in Example 1. In the third ultrasonic processing apparatus and the fourth ultrasonic processing apparatus, the frequency f of the electrical signal input to the receiving unit 32 was measured using a TEKTRONIX oscilloscope (model number: MDO3204), and the measurement method was as described in Example 1.

[0112] Furthermore, in this embodiment 2, the machining tools 20 used in the third ultrasonic machining apparatus and the fourth ultrasonic machining apparatus are all D6 flat-bottom milling cutters with a clamping length of 20 mm. Note that in the above test method, other machining tools 20 may be used, and the corresponding clamping lengths may be set. For example, a D4 tungsten steel rod may be used as the machining tool 20 with a clamping length of 20 mm, or a D16 flat-bottom milling cutter may be used as the machining tool 20 with a clamping length of 50 mm. Example 3

[0113] As shown in Figures 1 to 16, this embodiment 3 provides an ultrasonic spindle 100 based on the ultrasonic processing apparatus 10 according to Embodiment 1 or Embodiment 2 described above. Specifically, this ultrasonic spindle 100 includes a first rotational output unit 110, a processing tool 20, and the ultrasonic processing apparatus 10 according to Embodiment 1 or Embodiment 2.

[0114] Specifically, as shown in Figures 1 to 12, this embodiment 3 will be described in detail based on the ultrasonic processing apparatus 10 of embodiment 1. Here, a first limiting block 12 extending radially outward is formed on the outer circumference of the cutter body 1, and the rear end surface of the receiving unit 32 abuts against the front end surface of the first limiting block 12. A second limiting block 35 is connected to the front end surface of the receiving unit 32, and the second limiting block 35 is provided so as to surround the cutter body 1. In this way, a second housing slot 34 for housing the receiving unit 32 is formed between the first limiting block 12 and the second limiting block 35. As a result, when the receiving unit 32 is fitted and attached to the outer circumference of the cutter body 1, the receiving magnet 322 abuts against the second limiting block 35, thereby restricting the position of the receiving magnet 322 relative to the cutter body 1. Consequently, the weight distribution in the axial direction of the cutter body 1 to which the receiving unit 32 is attached meets the design standards, and the operational stability of the ultrasonic processing apparatus 10 during processing is improved.

[0115] In this embodiment 3, a lock ring 111 is connected to the front end of the first rotation output unit 110, and a transmitting frame 33 is connected to the lock ring 111 via a spacer 112. The transmitting frame 33 is provided so as to surround the outer circumference of the cutter body 1, and a first housing slot 331 is provided on the end face of the transmitting frame 33 facing the cutter body 1, and the transmitting magnet 312 is housed in the first housing slot 331. In other embodiments, a holder may be provided in a separate device, and the transmitting frame 33 may be connected to the holder and integrally molded with the holder, and a detailed explanation of the specific assembly structure is omitted here.

[0116] Specifically, as shown in Figures 1 and 2, the cutter body 1 in this embodiment has its rear end connected to the first rotation output unit 110, and its front end is provided with a mounting cavity 11 for housing an ultrasonic transducer 2. The ultrasonic transducer 2 is located inside the mounting cavity 11 and is electrically connected to the receiving unit 32.

[0117] In this embodiment 3, the ultrasonic transducer 2 includes a piezoelectric vibrator 21, a screw 22, and a rear cover 23, and the ultrasonic processing apparatus 10 in this embodiment further includes a horn 24. The screw 22 is provided in a mounting cavity 11 and extends axially from the cutter body 1, the rear end of the horn 24 extends into the mounting cavity 11 and is fixedly connected to the screw 22, the piezoelectric vibrator 21 is fitted onto the outer circumference of the screw 22, the rear end surface of the horn 24 protrudes from the outer circumference of the screw 22 along the radial direction of the screw 22 and forms a contact surface, thereby restricting the position of the piezoelectric vibrator 21 relative to the screw 22 together with the contact surface when the rear cover 23 is fitted onto the screw 22 from the rear end of the screw 22 and screwed onto the screw 22.

[0118] Preferably, in this embodiment 3, the horn 24 is integrally molded with the screw 22, thereby improving the overall strength of the horn 24 and screw 22, and enabling the piezoelectric vibrator 21 to stably output vibrations at a preset frequency for a longer period of time.

[0119] As shown in Figure 3, in order to fix the machining tool 20 to the horn 24, the ultrasonic machining apparatus 10 in this embodiment 3 further includes a collet 5 and a nut 6, the front end of the horn 24 having an insertion hole 241 extending to the rear end, the collet 5 being fitted onto the outer circumference of the machining tool 20 and being inserted into the insertion hole 241 together with the machining tool 20. Specifically, in this embodiment 3, the inner axial surface of the insertion hole 241 is conical, decreasing in diameter from front to rear, the collet 5 includes a frustoconical portion 51 that fits the conical insertion hole 241, and in the process of inserting the collet 5 into the insertion hole 241 together with the machining tool 20, the inner circumferential surface of the insertion hole 241 comes into contact with the collet 5, deforming the collet 5 and clamping the machining tool 20. Furthermore, in order to insert the machining tool 20 into a predetermined position in the insertion hole 241 and fix it to the horn 24, the nut 6 is fitted onto the outer circumference of the collet 5 and screwed onto the horn 24. At this time, the nut 6 abuts against the front end of the collet 5, preventing the collet 5 from moving forward and enabling the machining tool 20 to be stably attached to the horn 24.

[0120] Furthermore, as shown in Figure 12, in this embodiment 3, the collet 5 includes a frustoconical portion 51 that fits into the insertion hole, and the collet 5 has a plurality of first deformation grooves 52 distributed at intervals in its circumferential direction. Specifically, the plurality of first deformation grooves 52 are evenly distributed in the circumferential direction of the collet 5, so that the deformation is evenly distributed in the circumferential direction, and the first deformation grooves 52 extend to the frustoconical portion 51 or extend along the entire length of the frustoconical portion 51. In this way, when the collet 5 is pushed into the insertion hole, it can deform due to a certain amount of deformation that occurs in the first deformation grooves 52 to clamp the machining tool, and after being removed from the horn 24, it can deform and recover when the properties of the material itself are expressed, thus allowing for repeated use.

[0121] Here, the first deformation groove 52 connects the outer and inner surfaces of the collet 5. The first deformation groove 52 extends from the front end surface of the collet 5 backward along the axial direction of the collet 5, passing through the frustoconical portion 51, and further extending toward the rear end surface of the collet 5. There is a first gap 54 between the rear groove surface of the first deformation groove 52 and the rear end surface of the collet 5. Specifically, the width of the first gap 54 is greater than zero, thereby giving the collet 5 sufficient deformation capacity and providing a predetermined strength for clamping the machining tool.

[0122] Furthermore, the collet 5 includes a plurality of second deformation grooves 53 distributed at intervals in its circumferential direction, the second deformation grooves 53 extending to the frustoconical portion 51 or extending along the entire length of the frustoconical portion 51. The second deformation grooves 53 and the first deformation grooves 52 are arranged in a staggered pattern with intervals between them. Specifically, there is one second deformation groove 53 between any two adjacent first deformation grooves 52, thereby ensuring that the force acting on the collet 5 during deformation is uniform.

[0123] In this embodiment 3, there is a second gap 55 between the front groove surface of the second deformed groove 53 and the front end surface of the collet 5, and the rear groove surface of the second deformed groove 53 and the rear end surface of the collet are flush. The width of both the first gap 54 and the second gap 55 is greater than zero.

[0124] Specifically, in various embodiments, the processing tool 20 may be a cutter head, a milling cutter, a milling cutter, or other tools.

[0125] Based on the ultrasonic spindle 100 described above, Embodiment 3 of the present invention also provides an ultrasonic machine tool comprising a machine tool body (not shown) and the aforementioned ultrasonic spindle 100, the ultrasonic spindle 100 being mounted on the machine tool body. Example 4

[0126] As shown in Figures 18 and 19, based on the ultrasonic machining apparatus 10 in Example 1 or Example 2 described above, Example 4 includes a casing 210, a second rotary output unit 220, a machining tool 20, a bearing 230, and the ultrasonic machining apparatus 10. The front end surface of the casing 210 is provided with a rearward-extending housing cavity 211, the rear end of the cutter body 1 is housed in the housing cavity 211 and connected to the output end of the second rotary output unit 220, and the cutter body 1 is connected to the casing 210 via a bearing 230, and the ultrasonic processing device 10 is provided in the housing cavity 211 and connected to the casing 210, specifically the processing tool 20 which is connected to the ultrasonic transducer 2 by a horn 24, providing an ultrasonic drill 200.

[0127] Specifically, in this embodiment 4, the ultrasonic processing apparatus 10 includes a cutter body 1, an ultrasonic transducer 2, and a wireless transmission mechanism 3. The rear end of the cutter body 1 is attached to a second rotary output unit 220 and rotates in synchronization with the second rotary output unit 220, and the wireless transmission mechanism 3 is provided on the outer circumference of the cutter body 1.

[0128] In this embodiment 4, the wireless transmission mechanism 3 includes a transmitting unit 31 and a receiving unit 32. Specifically, the transmitting unit 31 is a complete or incomplete link-shaped device provided to surround the outer circumference of the cutter body 1, and the angle at which the transmitting magnet 312 surrounds the outer circumference of the cutter body 1 is θ. The file satisfies the criteria JPEG2026512187000121.jpg621, preferably, JPEG2026512187000122.jpg727θ=π or θ=2π, specifically, θ is the angle of the central angle corresponding to the transmitting coil 311 that extends along the circumferential direction of the cutter body 1.

[0129] Specifically, in this embodiment 4, the second rotary output unit 220 further includes an extended gripping handle 221, and the casing 210 is fixedly connected to the second rotary output unit 220, thereby stabilizing the relative position of the ultrasonic processing apparatus 10 with respect to the second rotary output unit 220.

[0130] This specification discloses the present invention with reference to the drawings and enables those skilled in the art to carry out the invention by manufacturing and using any apparatus or system, employing appropriate materials and any combination of methods. The scope of the present invention is limited by the technical solution for which protection is sought and includes other embodiments that those skilled in the art may conceive. Such other embodiments should be considered to fall within the scope of protection determined by the technical solution for which protection is sought, insofar as they include structural elements that are not different from the literal wording of the technical solution for which protection is sought, or insofar as they include equivalent structural elements that are not substantially different from the literal wording of the technical solution for which protection is sought. [Explanation of Symbols]

[0131] 100 Ultrasonic spindle, 110 First rotation output unit, 111 Lock ring, 112 Spacer, 200 Ultrasonic drill, 210 Casing, 211 Housing cavity, 220 Second rotation output unit, 221 Gripping handle, 230 Bearing, 10 Ultrasonic processing equipment, 20 Processing tools, 1 Cutter body, 11 Mounting cavity, 12 First limiting block, 2 Ultrasonic transducer, 21 Piezoelectric transducer, 22 Screw, 23 Rear cover, 24 Horn, 241 Insertion hole, 3 Wireless transmission mechanism, 31 Transmitting unit, 311 Transmitting coil, 312 Transmitting magnet, 312a First annular side plate, 312b First annular top plate, 312c First annular bottom plate, 312d First wiring slot, 312e Connection side plate, 312f Connection top plate, 312g Connection bottom plate, 3121 Top arc surface, 3122 Bottom arc surface, 32 Receiving unit, 321 Receiving coil, 322 Receiving magnet, 322a Second annular side plate, 322b Second annular top plate, 322c Second annular bottom plate, 322d Second wiring slot, 33 Transmitting frame, 331 First housing slot, 34 35 Second housing slot, 4 Second limiting block, 5 Air gap, 5 Collet, 51 Truncated cone section, 52 First deformed groove, 53 Second deformed groove, 54 First spacing, 55 Second spacing, 6 Nut.

Claims

1. An internal and external ring type ultrasonic machining apparatus, A cutter body with an ultrasonic transducer inside, A wireless transmission mechanism comprising a transmitting unit and a receiving unit, wherein the receiving unit is provided on the outer circumference of the cutter body, the transmitting unit is provided on the outer circumference of the receiving unit, the transmitting unit and the receiving unit are provided facing each other such that an air gap is formed between them, the transmitting unit includes a transmitting coil and a transmitting magnet that generates a magnetic field based on the current of the transmitting coil, and the receiving unit includes a receiving coil and a receiving magnet for receiving the magnetic field from the transmitting unit. The receiving unit includes an ultrasonic transducer electrically connected to the receiving unit, The frequency of the electrical signal input to the receiving unit is fHz, and the magnetic resistance of the air gap of the wireless transmission mechanism is R. δ H －１ , the magnetic resistance of the transmitting unit is R 送信 H －１ , the magnetic resistance of the receiving unit is R 受信 H －１ year, Further, let the number of turns of the transmission coil be N 送信 , let the apparent power of the transmission unit be Q 送信 VA, and let the peak current supplied to the transmission unit be I 送信 A. Then, the above parameters satisfy the following relational expression The number of turns in the receiving coil is N 受信 The apparent power of the receiving unit is Q 受信 VA, the peak current supplied to the receiving unit is I 受信 If we let A, then the above parameters satisfy the following relationship: Here, 2 ≤ N 送信 ≤ 240, and 2 ≤ N 受信 ≤ 240, K １ This is a correction factor, where 0.5 ≤ K １ An internal and external ring type ultrasonic machining apparatus characterized by satisfying ≤ 1.

5.

2. The angle at which the transmitting unit surrounds the outer circumference of the cutter body is θ radians. The inner and outer ring type ultrasonic processing apparatus according to claim 1, characterized in that it satisfies the requirements.

3. When θ = 2π, a first wiring slot is provided on the end face of the transmitting magnet facing the receiving unit so as to surround the cutter body, the transmitting coil is housed in the first wiring slot, the transmitting magnet includes a first annular side plate, a first annular top plate, and a first annular bottom plate, the first annular top plate is connected to the rear edge of the first annular side plate, the first annular bottom plate is connected to the front edge of the first annular side plate, and the first wiring slot is formed between the first annular side plate, the first annular top plate, and the first annular bottom plate, opening toward the receiving unit, where the thickness of the first annular top plate is T ２ａ mm, the thickness of the first annular base plate is T ２ｂ mm, the inner diameter of the transmitting magnet is D ４ mm, the outer diameter of the transmitting magnet is D ６ B is the length in mm that the opening of the first wiring slot extends in the axial direction of the cutter body. ２ mm, the depth of the first wiring slot is E ２ mm, the diameter of the first wiring slot is D ５ Let it be mm, A second wiring slot is provided on the end face of the receiving magnet facing the transmitting unit, surrounding the cutter body, and the receiving coil is housed in the second wiring slot. The receiving magnet includes a second annular side plate, a second annular top plate, and a second annular bottom plate, the second annular top plate being connected to the rear edge of the second annular side plate, the second annular bottom plate being connected to the front edge of the second annular side plate, and the second wiring slot opening toward the transmitting unit is formed between the second annular side plate, the second annular top plate, and the second annular bottom plate, where the thickness of the second annular top plate is T. １ａ mm, the thickness of the second annular base plate is T １ｂ mm, the inner diameter of the receiving magnet is D １ mm, the outer diameter of the receiving magnet is D ３ mm, the inner diameter of the second wiring slot is D ２ B is the length in mm that the opening of the second wiring slot extends in the axial direction of the cutter body. １ mm, the depth of the second wiring slot is E １ Let it be mm, The relative permeability of both the transmitting magnet and the receiving magnet is u, and the vacuum permeability is u. ０ H / m, the magnetic path area of ​​the second annular side plate is S １ The magnetic path area S １ It satisfies the following equation, The magnetic resistance R of the receiving unit 受信 The relationship between the above parameters is as follows: Here, R １ R is the magnetic resistance of the second annular side plate. ２ R is the magnetic resistance of the second ring-shaped top plate. ３ This is the magnetic resistance of the second annular base plate, The magnetic resistance R of the transmitting unit 送信 The relationship between the above parameters is as follows: Here, R ４ R is the magnetoresistance of the first annular side plate. ５ R is the magnetic resistance of the first ring-shaped top plate. ６ The inner and outer ring type ultrasonic processing apparatus according to claim 2, characterized in that is the magnetic resistance of the first annular bottom plate.

4. Let L be the width of the air gap, and let R be the magnetic resistance of the air gap. δ The following equation is satisfied: Here, R ７ R is the magnetic resistance of the air gap between the first annular top plate and the second annular top plate, ８ This is the magnetic resistance of the air gap between the first annular bottom plate and the second annular bottom plate, and K ２ This is the correction factor for magnetoresistance, and 0.2 ≤ K ２ Satisfying ≤ 3, and based on the structural parameters of the transmitting magnet and the receiving magnet, T １ａ <T ２ａ In the case of T ７ = T １ａ And so, T １ａ >T ２ａ In the case of T ７ = T ２ａ And so, T １ｂ <T ２ｂ In the case of T ８ = T １ｂ And so, T １ｂ >T ２ｂ In the case of T ８ = T ２ｂ And so, R ７ and R ８ The following relationship is satisfied, Here, m is 7 or 8, and parameters β, γ, and a satisfy the following equation: T １ａ = T ２ａ In the case of T ７ = T １ａ And so, T １ｂ = T ２ｂ In the case of T ８ = T １ｂ And so, R ７ and R ８ The inner and outer ring type ultrasonic processing apparatus according to claim 3, characterized in that it satisfies the following relational expression. In the case of Claim 5, a first wiring slot surrounding the cutter body is provided on the end face of the transmitting magnet facing the receiving unit, the transmitting coil is housed in the first wiring slot, the transmitting magnet includes a connecting side plate, a connecting top plate, and a connecting bottom plate, the connecting top plate is connected to the rear edge of the connecting side plate, the end face of the connecting top plate facing the receiving unit is provided with a top arc surface that fits the receiving unit, the connecting bottom plate is connected to the front edge of the connecting side plate, the end face of the connecting bottom plate facing the receiving unit is provided with a bottom arc surface that fits the receiving unit, and the first wiring slot opening toward the receiving unit is formed between the connecting side plate, the connecting top plate, and the connecting bottom plate. Here, the thickness of the connecting side plate is A ２ mm, the length of the connecting side plate is H ３ mm, the thickness of the connecting top plate is T ２ａ mm, the thickness of the connecting bottom plate is T ２ｂ mm, the minimum width from the outermost edge of the transmitting magnet to the inner arc surface is B ３ mm, the inner diameter of the transmitting magnet is D ４ B is the length in mm that the opening of the first wiring slot extends in the axial direction of the cutter body. ２ mm, the depth of the first wiring slot is E ２ Let it be mm, A second wiring slot surrounding the cutter body is provided on the end face of the receiving magnet facing the transmitting unit, the receiving coil is housed in the second wiring slot, the receiving magnet includes a second annular side plate, a second annular top plate, and a second annular bottom plate, the second annular top plate is connected to the rear edge of the second annular side plate, the second annular bottom plate is connected to the front edge of the second annular side plate, and the second wiring slot opening toward the transmitting unit is formed between the second annular side plate, the second annular top plate, and the second annular bottom plate. Here, the thickness of the second annular top plate is T. １ａ mm, the thickness of the second annular base plate is T １ｂ mm, the inner diameter of the receiving magnet is D １ mm, the outer diameter of the receiving magnet is D ３ mm, the inner diameter of the second wiring slot is D ２ B is the length in mm that the opening of the second wiring slot extends in the axial direction of the cutter body. １ mm, the depth of the second wiring slot is E １ Let it be mm, Let the relative permeability of both the transmitting magnet and the receiving magnet be μ, and the permeability of free space be μ ０ H / m, and let the magnetic path area of the second annular side plate be S １ Then, the magnetic path area S １ satisfies the following equation The magnetic resistance R of the receiving unit 受信 The relationship between the above parameters is as follows: Here, R １ R is the magnetic resistance of the second annular side plate. ２ R is the magnetic resistance of the second ring-shaped top plate. ３ This is the magnetic resistance of the second annular base plate, The magnetoresistance R of the transmission unit 送信 and the above parameters are related as follows, Here, R ４ R is the magnetic resistance of the connecting side plate. ５ The magnetic resistance of the connecting top plate, R ６ The inner and outer ring type ultrasonic processing apparatus according to claim 2, characterized in that is the magnetic resistance of the connecting bottom plate.

6. Let L be the width of the air gap, and let R be the magnetic resistance of the air gap. δ It satisfies the following equation, Here, R ７ R is the magnetic resistance of the air gap between the connecting top plate and the second annular top plate. ８ This is the magnetic resistance of the air gap between the connecting bottom plate and the second annular bottom plate, and K ２ This is the correction factor for magnetoresistance, and 0.2 ≤ K ２ Satisfying ≤ 3, Based on the structural parameters of the transmitting magnet and the receiving magnet, T １ａ <T ２ａ In the case of T ７ = T １ａ And so, T １ａ >T ２ａ In the case of T ７ = T ２ａ And so, T １ｂ <T ２ｂ In the case of T ８ = T １ｂ And so, T １ｂ >T ２ｂ In the case of T ８ = T ２ｂ And so, R ７ and R ８ The following relationship is satisfied, Here, m is 7 or 8, and parameters β, γ, and a satisfy the following equation: T １ａ = T ２ａ In the case of T ７ = T １ａ And so, T １ｂ = T ２ｂ In the case of T ８ = T １ｂ And so, R ７ and R ８ The inner and outer ring type ultrasonic processing apparatus according to claim 5, characterized in that it satisfies the following relational expression.

7. The inner and outer ring type ultrasonic machining apparatus according to any one of claims 1 to 6, characterized in that the width of the air gap is L mm and satisfies 0.1 ≤ L ≤ 3.

8. The inner and outer ring type ultrasonic machining apparatus according to any one of claims 1 to 6, characterized in that a first limiting block extending radially outward is formed on the outer circumference of the cutter body, the rear end surface of the receiving unit abuts against the front end surface of the first limiting block, a second limiting block is connected to the front end surface of the receiving unit, the second limiting block is arranged to surround the cutter body, and a second housing slot for housing the receiving unit is formed between the first limiting block and the second limiting block.

9. The internal and external ring type ultrasonic machining apparatus according to any one of claims 1 to 6, characterized in that the wireless transmission mechanism includes a transmitting frame, the transmitting frame is provided on the outer circumference of the cutter body, a first housing slot is provided on the end face of the transmitting frame facing the cutter body, and the transmitting magnet is housed in the first housing slot.

10. The inner and outer ring type ultrasonic processing apparatus according to any one of claims 1 to 6, characterized in that a mounting cavity is provided in the cutter body and the ultrasonic transducer is provided in the mounting cavity.

11. The internal and external ring type ultrasonic machining apparatus according to any one of claims 1 to 6, further comprising a horn, wherein the ultrasonic transducer comprises a piezoelectric vibrator, a screw, and a rear cover, the screw being provided within the cutter body and extending axially from the cutter body, the rear end of the horn being fixedly connected to the screw, the piezoelectric vibrator being fitted onto the screw, and the rear cover being screwed onto the screw and, together with the rear end face of the horn, restricting the position of the piezoelectric vibrator.

12. The inner and outer ring type ultrasonic machining apparatus according to claim 11, further comprising a collet and a nut fitted onto the outer circumference of a machining tool, wherein the front end of the horn is provided with an insertion hole extending to the rear end, the inner circumferential surface of the insertion hole is conical in shape, decreasing in diameter from front to rear, the collet is insertable into the insertion hole together with the machining tool, and the nut is screwed onto the horn and can lock the machining tool by contacting the collet.

13. The collet includes a frustoconical portion that fits into the insertion hole, and the collet has a plurality of first deformation grooves distributed at intervals in the circumferential direction, the first deformation grooves extending to the frustoconical portion or extending along the entire length of the frustoconical portion. The inner and outer ring type ultrasonic machining apparatus according to claim 12, characterized in that the first deformed groove connects the outer surface and the inner surface of the collet, the first deformed groove penetrates the frustoconical portion from the front end surface of the collet toward the rear along the axial direction of the collet, and further extends toward the rear end surface of the collet, and there is a first gap between the rear groove surface of the first deformed groove and the rear end surface of the collet.

14. The collet includes a plurality of second deformation grooves distributed at intervals in its circumferential direction, the second deformation grooves extending to the frustoconical portion or extending along the entire length of the frustoconical portion, and the second deformation grooves and the first deformation grooves are arranged in a staggered pattern at intervals. The inner and outer ring type ultrasonic machining apparatus according to claim 13, characterized in that there is a second gap between the front groove surface of the second deformed groove and the front end surface of the collet, and the rear groove surface of the second deformed groove and the rear end surface of the collet are flush.

15. The inner and outer ring type ultrasonic processing apparatus according to any one of claims 1 to 6, characterized in that the transmitting magnet is made of one of the following materials: ferrite, neodymium iron boron, high-frequency ceramic material, powder metallurgy material, amorphous and nanocrystalline alloy, and cobalt iron, and the receiving magnet is made of one of the following materials: ferrite, neodymium iron boron, high-frequency ceramic material, powder metallurgy material, amorphous and nanocrystalline alloy, and cobalt iron.

16. An ultrasonic spindle, An ultrasonic spindle comprising a first rotational output unit and an internal and external ring type ultrasonic processing apparatus according to any one of claims 1 to 15, wherein the rear end of the cutter body is attached to the first rotational output unit.

17. It is an ultrasonic machine tool, An ultrasonic machine tool comprising a machine tool body and an ultrasonic spindle as described in claim 16, wherein the ultrasonic spindle is attached to the machine tool body.

18. It is an ultrasonic drill, An ultrasonic drill comprising a casing, a second rotary output unit, a processing tool, a bearing, and an internal and external ring type ultrasonic processing apparatus according to any one of claims 1 to 6, wherein the front end surface of the casing is provided with a housing cavity extending to the rear, the rear end of the cutter body is housed in the housing cavity and connected to the output end of the second rotary output unit, the cutter body is connected to the casing via the bearing, the internal and external ring type ultrasonic processing apparatus is provided in the housing cavity and connected to the casing, and the processing tool is connected to the ultrasonic transducer.

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