Energy transmission device and rotary ultrasonic machining system

Abstract

The application relates to an energy transmission device and a rotary ultrasonic machining system. The energy transmission device comprises a secondary side mechanism and a primary side mechanism sleeved outside the secondary side mechanism. The secondary side mechanism comprises a first shielding member and a plurality of first windings. The first shielding member is in an annular structure. A plurality of first accommodating grooves are formed on the outer circumferential side of the first shielding member at intervals along the axial direction. The first windings are arranged in the first accommodating grooves one by one. The primary side mechanism comprises a second shielding member and a plurality of second windings. The second shielding member is sleeved outside the first shielding member at intervals. A plurality of second accommodating grooves are formed on the inner circumferential side of the first shielding member at intervals along the axial direction. The openings of the second accommodating grooves are arranged opposite to the openings of the first accommodating grooves one by one. The second windings are arranged in the second accommodating grooves one by one. The plurality of second windings and the plurality of first windings are coupled and matched one by one to form a plurality of signal transmission channels. The signal transmission among the signal transmission channels is independent of each other.

Description

Technical Field

[0001] This application relates to the field of rotary ultrasonic machining technology, and in particular to energy transmission devices and rotary ultrasonic machining systems. Background Technology

[0002] Rotary ultrasonic machining is a processing technology that combines the application of high-frequency vibration with the traditional high-speed rotating tool to remove material. It is considered an efficient processing method for hard and brittle materials such as engineering ceramics and glass, as well as carbon fiber composites, and has great application prospects in aerospace, defense industry, medicine, and optical precision machining.

[0003] Rotary ultrasonic machining generally includes an ultrasonic generator, an energy transmission device, and a tool holder with an ultrasonic transducer. The ultrasonic generator provides a high-frequency voltage signal, and the energy transmission device transmits the voltage signal to the rotating ultrasonic transducer. The ultrasonic transducer uses the inverse piezoelectric effect to cause the tool to vibrate.

[0004] In related technologies, energy transfer devices often use slip rings to transmit voltage signals. This mechanical contact signal transmission method can lead to electrical sparks and also has disadvantages such as low tool rotation speed and inconvenient disassembly. In addition, there is cross-coupling in the signal transmission between the multiple channels of the energy transfer device. This not only causes distortion of the elliptical vibration trajectory of the tool, but also affects the results of comparative experiments on machining with different vibration modes. Summary of the Invention

[0005] Therefore, it is necessary to provide a method to reduce the cross-coupling phenomenon in energy transmission between multiple channels.

[0006] An energy transmission device, comprising:

[0007] A secondary side mechanism, comprising a first shielding member and a plurality of first windings, wherein the first shielding member is an annular structure, and a plurality of first receiving slots are spaced apart along the axial direction on the outer periphery of the first shielding member, and the first windings are correspondingly disposed in the first receiving slots; and,

[0008] The primary-side mechanism includes a second shield and a plurality of second windings. The second shield is spaced outside the first shield. The inner circumference of the second shield is provided with a plurality of second receiving slots spaced apart along the axial direction. The openings of the second receiving slots are arranged opposite to the openings of the first receiving slots. The second windings are arranged in the second receiving slots in a corresponding manner. The plurality of second windings are coupled to the plurality of first windings in a corresponding manner to form a multi-channel signal transmission channel.

[0009] The technical solution will be further explained below:

[0010] In one embodiment, the number of first windings is three, the number of second windings is three, and the three first windings and the three second windings are coupled one-to-one to form three signal transmission channels.

[0011] In one embodiment, the first shielding member includes an annular inner plate, a first top plate disposed at one end of the inner plate, a first bottom plate disposed at the other end of the inner plate, and a plurality of first partitions disposed at intervals between the first top plate and the first bottom plate, the plurality of first partitions separating the plurality of first receiving grooves between the first top plate and the first bottom plate.

[0012] The second shielding member includes an annular outer plate, a second top plate disposed at one end of the outer plate, a second bottom plate disposed at the other end of the outer plate, and a plurality of second partitions disposed at intervals between the second top plate and the second bottom plate, wherein the plurality of second partitions divide the plurality of second receiving grooves between the second top plate and the second bottom plate;

[0013] The first top plate and the second top plate are arranged opposite each other in the radial direction; the first bottom plate and the second bottom plate are arranged opposite each other in the radial direction; and the plurality of first partitions and the plurality of second partitions are arranged opposite each other in the radial direction.

[0014] In one embodiment, the first shielding member includes a plurality of ring segments connected sequentially along the axial direction. One end face of two adjacent ring segments is provided with a first shoulder and the other end face is provided with a second shoulder. The first shoulder and the second shoulder are nested together.

[0015] In one embodiment, each of the first windings includes a first magnetic element and a first coil. The first magnetic element is a ring structure and has a first receiving groove. The opening of the first receiving groove faces the corresponding second winding in the same signal transmission channel, and the first coil is disposed in the first receiving groove.

[0016] In one embodiment, each of the second windings includes a second magnetic element and a second coil. The second magnetic element is a ring structure and has a second receiving groove. The opening of the second receiving groove faces the corresponding first winding in the same signal transmission channel, and the second coil is disposed in the second receiving groove.

[0017] In one embodiment, the second magnetic component includes a first semi-ring portion and a second semi-ring portion spliced ​​together circumferentially, and a first splicing seam is provided between the first semi-ring portion and the second semi-ring portion.

[0018] The second shielding component includes a third semi-ring portion and a fourth semi-ring portion spliced ​​together in the circumferential direction, and a second splicing seam is provided between the third semi-ring portion and the fourth semi-ring portion;

[0019] The first splicing seam and the second splicing seam are offset from each other in the radial direction of the original edge mechanism.

[0020] In one embodiment, both the first and second seams are filled with sealant; and / or, both the third and fourth semi-ring portions are provided with connecting seats for connecting to the machine tool.

[0021] In one embodiment, the first shielding member has a plurality of first wire holes through it, and the plurality of first wire holes are connected to the plurality of first receiving slots in a one-to-one correspondence; and / or, the second shielding member has a plurality of second wire holes through it, and the plurality of second wire holes are connected to the plurality of second receiving slots in a one-to-one correspondence.

[0022] This application also provides a rotary ultrasonic machining system, including an ultrasonic generator, a tool holder with an ultrasonic transducer, and the aforementioned energy transmission device. The energy transmission device is sleeved outside the tool holder, and the primary side mechanism is electrically connected to the ultrasonic generator, and the secondary side mechanism is electrically connected to the ultrasonic transducer.

[0023] In the aforementioned energy transmission device, by arranging the multiple first windings of the secondary side mechanism one-to-one in the first receiving slot of the first shielding component, the bottom wall and side walls of the first receiving slot can effectively form signal shielding from three directions around the outer periphery of the first winding. Similarly, by arranging the multiple second windings of the primary side mechanism one-to-one in the second receiving slot of the second shielding component, the bottom wall and side walls of the second receiving slot can effectively form signal shielding from three directions around the outer periphery of the second winding. In this way, the signal of the second winding can only be transmitted to the corresponding first winding through the slot opening of the second receiving slot, reducing the phenomenon of cross-coupling and mutual inductance between the windings of each signal transmission channel, ensuring that the signal transmission between each signal transmission channel is independent, thereby ensuring the stability of the elliptical vibration trajectory of the tool, and reducing the error generated by the comparative experimental results of machining with different vibration modes.

[0024] Furthermore, the primary edge mechanism is spaced outside the secondary edge mechanism, meaning that a non-contact signal transmission method is used between the primary and secondary edge mechanisms. This effectively avoids electrical sparks caused by friction between the primary and secondary edge mechanisms, and also prevents interference with tool speed. Disassembly and maintenance are also more convenient. Simultaneously, placing the primary edge mechanism outside the secondary edge mechanism significantly reduces the axial space of the energy transmission device, making its structure more compact and reliable. It also reduces the overall overhang length of the tool, improving tool stability under high-speed rotation. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the structure of a rotary ultrasonic machining system according to an embodiment.

[0029] Figure 2 This is a schematic diagram of the structure of an energy transmission device according to one embodiment.

[0030] Figure 3 for Figure 2 A cross-sectional view of the energy transmission device shown.

[0031] Figure 4 This is a cross-sectional view of the secondary side structure of one embodiment.

[0032] Figure 5 This is an exploded view of the primary side mechanism of one embodiment.

[0033] Figure 6 This is a cross-sectional view of a second shielding body according to an embodiment.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Ultrasonic generator; 20. Energy transmission device; 201. Z-axis signal transmission channel; 202. X-axis signal transmission channel; 203. Y-axis signal transmission channel; 21. Secondary side mechanism; 211. First winding; 2111. First coil; 2112. First magnetic component; 212. First shielding component; 2121. First receiving groove; 2122. Inner plate; 2123. First top plate; 2124. First bottom plate; 2125. First partition; 2126. First wire hole; 2127. Ring segment; 22. Primary side mechanism; 22 1. Second winding; 2211. Second coil; 2212. Second magnetic component; 2213. First semi-ring; 2214. Second semi-ring; 2215. Second wire hole; 222. Second shield; 2221. Third semi-ring; 2222. Fourth semi-ring; 2223. Second receiving groove; 2224. Connecting seat; 2225. Second wire hole; 2226. Outer plate; 2227. Second top plate; 2228. Second bottom plate; 2229. Second partition; 30. Tool holder device; 40. Machine tool spindle; 50. Tool. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means multiple, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0042] See Figure 1One embodiment of this application provides a rotary ultrasonic machining system, including an ultrasonic generator 10, an energy transmission device 20, and a tool holder device 30 with an ultrasonic transducer. The energy transmission device 20 includes a secondary side mechanism 21 and a primary side mechanism 22 sleeved outside the secondary side mechanism 21. The ultrasonic generator 10 is electrically connected to the primary side mechanism 22 of the energy transmission device 20. The ultrasonic generator 10 is used to provide a high-frequency voltage signal to the energy transmission device 20. The energy transmission device 20 is sleeved outside the tool holder device 30, and the secondary side mechanism 21 of the energy transmission device 20 is electrically connected to the ultrasonic transducer of the tool holder device 30. The energy transmission device 20 is used to transmit the voltage signal to the ultrasonic transducer. The tool holder device 30 is used to connect a machine tool spindle 40 and a cutting tool 50. The tool holder device 30 is used to drive the cutting tool 50 to rotate under the drive of the machine tool spindle 40. At the same time, after receiving the voltage signal, the ultrasonic transducer uses the inverse piezoelectric effect to make the cutting tool 50 vibrate, thereby realizing rotary ultrasonic machining of the workpiece.

[0043] As described in the background section, in two-dimensional or three-dimensional elliptical vibration, the energy transmission device 20 of the rotary ultrasonic machining system often uses a slip ring to transmit voltage signals. This mechanical contact signal transmission method can lead to electrical sparks and also has disadvantages such as low tool rotation speed and inconvenient disassembly. Furthermore, there is cross-coupling in the signal transmission between the multiple channels of the energy transmission device 20. This not only distorts the elliptical vibration trajectory of the tool 50 but also affects the comparative experimental results of machining under different vibration modes. Therefore, how to achieve independent energy transmission between each channel in the multi-channel signal transmission process is an urgent problem to be solved.

[0044] Based on this, one embodiment of this application provides an energy transmission device 20, which can be applied to the above-mentioned rotary ultrasonic processing system for transmitting voltage signals. Specifically, see... Figure 2 as well as Figure 3One embodiment of the energy transmission device 20 includes a secondary side mechanism 21 and a primary side mechanism 22 sleeved outside the secondary side mechanism 21. The secondary side mechanism 21 includes a first shield 212 and a plurality of first windings 211. The first shield 212 has a ring structure, and a plurality of first receiving grooves 2121 are axially spaced on its outer periphery. The first windings 211 are correspondingly disposed in the first receiving grooves 2121. Preferably, the first receiving grooves 2121 are U-shaped grooves, and the openings of the first receiving grooves 2121 face the primary side mechanism 22. The primary side mechanism 22 includes a second shield 222 and a plurality of second windings 221. The second shield 222 is spaced out from the first shield 212. The inner circumferential side of the second shield 222 is provided with a plurality of second receiving grooves 2223 spaced out along the axial direction. Preferably, the second receiving grooves 2223 are also U-shaped grooves. The openings of the second receiving grooves 2223 are arranged opposite to the openings of the first receiving grooves 2121. The second windings 221 are arranged in the second receiving grooves 2223 in a corresponding manner. The plurality of second windings 221 are coupled with the plurality of first windings 211 in a corresponding manner to form a multi-channel signal transmission channel.

[0045] In the aforementioned energy transmission device 20, by correspondingly arranging the multiple first windings 211 of the secondary side mechanism 21 in the first receiving groove 2121 of the first shielding member 212, the bottom wall and side walls of the first receiving groove 2121 effectively form signal shielding from three directions around the outer periphery of the first windings 211. Similarly, by correspondingly arranging the multiple second windings 221 of the primary side mechanism 22 in the second receiving groove 2223 of the second shielding member 222, the bottom wall and side walls of the second receiving groove 2223 effectively form signal shielding from three directions around the outer periphery of the second windings. This ensures that the signal from the second winding 221 can only be transmitted to the corresponding first winding 211 through the opening of the second receiving groove 2223, reducing the phenomenon of cross-coupling and mutual inductance between the windings of each signal transmission channel, ensuring that the signal transmission between each signal transmission channel is independent, thereby ensuring the stability of the elliptical vibration trajectory of the tool 50, and reducing the errors generated by the comparative machining results of different vibration modes.

[0046] Furthermore, the primary edge mechanism 22 is spaced outside the secondary edge mechanism 21, meaning that a non-contact signal transmission method is used between the primary edge mechanism 22 and the secondary edge mechanism 21. This effectively avoids the generation of electrical sparks caused by friction between the primary edge mechanism 22 and the secondary edge mechanism 21, and also avoids affecting the rotational speed of the tool 50. Disassembly and maintenance are also more convenient. At the same time, the primary edge mechanism 22 being spaced outside the secondary edge mechanism 21 significantly reduces the axial space of the energy transmission device 20, making its structure more compact and reliable. It also reduces the overall overhang length of the tool 50, improving the tool's stability under high-speed rotation.

[0047] Optionally, in one embodiment, both the first shield 212 and the second shield 222 are made of metal, such as copper, aluminum, iron, or their alloys. Further, the wall thickness of the first shield 212 and the second shield 222 can be determined based on the skin depth of their materials. To better eliminate cross-coupling and mutual inductance between signal transmission channels and to ensure support for the first winding 211 and the second winding 221, the materials of the first shield 212 and the second shield 222 can be selected to be 5-6 times the skin depth. In this case, the wall thickness of the first shield 212 and the second shield 222 can be calculated based on the ultrasonic processing frequency. Preferably, the wall thickness of both the first shield 212 and the second shield 222 can be designed to be 1-3 mm. Preferably, in one embodiment, both the first shield 212 and the second shield 222 are made of aluminum alloy with a wall thickness of 2 mm.

[0048] See Figure 3 Optionally, in one embodiment, there are three first windings 211 and three second windings 221. The three first windings 211 and the three second windings 221 are coupled one-to-one to form three independent signal transmission channels. Specifically, the three signal transmission channels are a Z-direction signal transmission channel 201, an X-direction signal transmission channel 202, and a Y-direction signal transmission channel 203, which are used to excite the X, Y, and Z-direction vibration modules of the energy converter at the resonant frequencies of the X, Y, and Z-direction vibration modes, respectively. Through the shielding effect of the first shield 212 and the second shield 222, the X-axis signal transmission channel 202, the Y-axis signal transmission channel 203, and the Z-axis signal transmission channel 201 can be ensured to be independent of each other. In this way, the rotary ultrasonic machining system can output X-axis one-dimensional vibration, Y-axis one-dimensional vibration, Z-axis one-dimensional vibration, two-dimensional vertical elliptical vibration, two-dimensional horizontal elliptical vibration, and three-dimensional spatial elliptical vibration, realizing the output of six vibration modes. This promotes the comparison of ultrasonic machining process effects and processing mechanisms under multiple vibration modes, and enables flexible switching of different types of vibration modes for different processing needs, thereby achieving high-precision machining of complex and difficult-to-machine parts.

[0049] It is worth noting that in other embodiments, the number of the first winding 211 and the number of the second winding 221 can both be two, that is, the energy transmission device 20 has two signal transmission channels, which can realize the output of two one-dimensional vibrations and one two-dimensional elliptical vibration.

[0050] See Figure 4Optionally, in one embodiment, the first shielding member 212 includes an annular inner plate 2122, a first top plate 2123 disposed at one end of the inner plate 2122, a first bottom plate 2124 disposed at the other end of the inner plate 2122, and a plurality of first partitions 2125 disposed at intervals between the first top plate 2123 and the first bottom plate 2124, wherein the plurality of first partitions 2125 divide the first top plate 2123 and the first bottom plate 2124 into a plurality of first receiving grooves 2121.

[0051] Similarly, see Figure 6 The second shielding member 222 includes an annular outer plate 2226, a second top plate 2227 disposed at one end of the outer plate 2226, a second bottom plate 2228 disposed at the other end of the outer plate 2226, and a plurality of second partitions 2229 disposed at intervals between the second top plate 2123 and the second bottom plate 2228. The plurality of second partitions 2229 divide the second top plate 2123 and the second bottom plate 2228 into a plurality of second receiving grooves 2223. Among them, the first top plate 2123 and the second top plate 2227 are disposed opposite each other in the radial direction; the first bottom plate 2124 and the second bottom plate 2228 are disposed opposite each other in the radial direction; and the plurality of first partitions 2125 and the plurality of second partitions 2229 are disposed opposite each other in the radial direction.

[0052] Specifically, the outer plate 2226, the first top plate 2123, the second top plate 2227, the first bottom plate 2124, and the second bottom plate 2228 can shield the magnetic field propagated into the air, eliminating electromagnetic radiation in the environment. The inner plate 2122 can shield the exposed magnetic field of the signal transmission device on the inner side, i.e., the side closest to the tool holder 30, reducing the eddy current effect generated by the inner magnetic field on the tool holder 30, thereby significantly reducing eddy current loss. The cross-coupling mutual inductance between two adjacent signal transmission channels is canceled out by the reverse eddy current magnetic field generated by the first partition 2125 and the second partition 2229, so that the magnetic lines of force between each signal transmission channel will not intersect each other, achieving independence and eliminating the influence of magnetic circuit cross-coupling between each signal transmission channel, making the circuit simple and eliminating the need for complex reverse inductance compensation.

[0053] See also Figure 4In one embodiment, the first shielding member 212 includes a plurality of ring segments 2127 connected sequentially along the axial direction. One end face of each pair of adjacent ring segments 2127 has a first shoulder, and the other has a second shoulder, with the first and second shoulders nested together. Specifically, the first shoulder is near the outer surface of the ring segment 2127, and the second shoulder is near the inner surface of the ring segment 2127. This nesting of the first and second shoulders ensures the coaxiality of each ring segment 2127. During installation, each ring segment 2127 is sequentially fitted onto the tool holder device 30 from bottom to top, simplifying the installation process. Simultaneously, strong adhesive is used to bond and fix each ring segment 2127 to the tool holder device 30, and epoxy resin is filled into the gaps between each ring segment 2127 for insulation and sealing.

[0054] See Figure 4 In one embodiment, each first winding 211 includes a first magnetic element 2112 and a first coil 2111. The first magnetic element 2112 has a ring structure and a first receiving groove, which is also a U-shaped groove. The opening of the first receiving groove faces the corresponding second winding 221 in the same signal transmission channel. The first coil 2111 is disposed in the first receiving groove. Specifically, the first magnetic element 2112 is made of a magnetic material with a permeability much greater than that of air and metal. The first magnetic element 2112 can guide the magnetic field generated by the corresponding second winding 221 to the corresponding first winding 211, reducing the overflow of magnetic lines of force and increasing the mutual inductance between the first winding 211 and the second winding 221 in the same signal transmission channel. Preferably, the first magnetic element 2112 is made of ferrite.

[0055] Similarly, see Figure 5 Each second winding 221 includes a second magnetic element 2212 and a second coil 2211. The second magnetic element 2212 has a ring structure and a second receiving groove, which is also a U-shaped groove. The opening of the second receiving groove faces the corresponding first winding 211 in the same signal transmission channel. The first coil 2111 is disposed in the first receiving groove. Specifically, the second magnetic element 2212 is made of a magnetic material with a permeability much greater than that of air and metal. The second magnetic element 2212 can guide the magnetic field generated by the corresponding first winding 211 into the first winding 211, reducing the overflow of magnetic lines of force and increasing the mutual inductance between the first winding 211 and the second winding 221 in the same signal transmission channel.

[0056] Furthermore, the second magnetic component 2212 includes a first semi-ring portion 2213 and a second semi-ring portion 2214 joined together circumferentially, with a first splicing seam between them. Specifically, the first semi-ring portion 2213 and the second semi-ring portion 2214 can be joined together to form a ring-shaped second magnetic component 2212, meaning the first magnetic component 2212 can be divided into two left and right semi-ring structures, which facilitates the assembly of the second coil 2211 and the second magnetic component 2212. At the same time, compared to a top-bottom division, dividing the second magnetic component 2212 into the circumferentially joined first semi-ring portion 2213 and second semi-ring portion 2214 helps reduce magnetic leakage and improve coupling efficiency.

[0057] Similarly, see [link to relevant documentation] Figure 4 To facilitate the assembly of the second winding 221 and the second shielding member 222, the second shielding member 222 also includes a third semi-ring portion 2221 and a fourth semi-ring portion 2222 spliced ​​together circumferentially, with a second splicing seam between them. That is, the second shielding member 222 can also be divided into two left and right semi-ring structures, thus facilitating the insertion of the second winding 221 into the first shielding member 212. Furthermore, the first splicing seam and the second splicing seam are staggered in the radial direction of the primary side mechanism 22. For example, in one embodiment, the first splicing seam and the second splicing seam are staggered by 90 degrees, which improves the structural strength of the primary side mechanism 22 while reducing magnetic leakage.

[0058] Furthermore, both the first and second joints are filled with sealant, which serves to seal the edges. Preferably, the sealant can be epoxy resin.

[0059] See also Figure 4 In one embodiment, both the splicing end of the third semi-ring 2221 and the splicing end of the fourth semi-ring 2222 are provided with connecting seats 2224. Both connecting seats 2224 are used to connect to the machine tool to fix the original edge mechanism 22 to the machine tool, while also strengthening the bonding strength between the third semi-ring 2221 and the fourth semi-ring 2222. Furthermore, both connecting seats 2224 are connected to the machine tool with screws, facilitating disassembly and maintenance.

[0060] See Figure 4 Optionally, in one embodiment, the first shielding member 212 has a plurality of first wire holes 2126 extending through it, and the plurality of first wire holes 2126 are connected to a plurality of first receiving slots 2121 in a one-to-one correspondence. Further, the first magnetic member 2112 has a first through hole, and the first through hole is connected to the first wire holes 2126 in a one-to-one correspondence. Both the first wire holes 2126 and the first through holes are used for the wires of the energy converter to pass through, so as to realize the electrical connection between the first coil 2111 and the energy converter.

[0061] Similarly, see Figure 5 The second shielding member 222 has multiple second wire holes 2225 extending through it, and each of the multiple second wire holes 2225 is connected to a multiple of the second receiving slots 2223. Further, the second magnetic member 2212 has a second through hole 2215, and each of the second through holes 2215 is connected to a second wire hole 2225. Both the second wire holes 2225 and the second through holes 2215 are used for the passage of wires from the ultrasonic generator 10 to achieve electrical connection between the second coil 2211 and the ultrasonic generator 10.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An energy transmission device, characterized in that, include: A secondary side mechanism, comprising a first shielding member and a plurality of first windings, wherein the first shielding member is an annular structure, and a plurality of first receiving slots are spaced apart along the axial direction on the outer periphery of the first shielding member, and the first windings are correspondingly disposed in the first receiving slots; and, The primary side mechanism includes a second shield and a plurality of second windings. The second shield is spaced outside the first shield. The inner circumferential side of the second shield is provided with a plurality of second receiving slots spaced along the axial direction. The slot openings of the second receiving slots are arranged opposite to the slot openings of the first receiving slots. The second windings are arranged in the second receiving slots in a corresponding manner. The plurality of second windings are coupled to the plurality of first windings in a corresponding manner to form a multi-channel signal transmission channel. The first shielding member includes an annular inner plate, a first top plate disposed at one end of the inner plate, a first bottom plate disposed at the other end of the inner plate, and a plurality of first partitions disposed at intervals between the first top plate and the first bottom plate, wherein the plurality of first partitions divide the plurality of first receiving grooves between the first top plate and the first bottom plate. The second shielding member includes an annular outer plate, a second top plate disposed at one end of the outer plate, a second bottom plate disposed at the other end of the outer plate, and a plurality of second partitions disposed at intervals between the second top plate and the second bottom plate, wherein the plurality of second partitions divide the plurality of second receiving grooves between the second top plate and the second bottom plate; The first top plate and the second top plate are arranged opposite each other in the radial direction; the first bottom plate and the second bottom plate are arranged opposite each other in the radial direction; and the plurality of first partitions and the plurality of second partitions are arranged opposite each other in the radial direction.

2. The energy transmission device according to claim 1, characterized in that, The number of first windings is three, and the number of second windings is three. The three first windings and the three second windings are coupled one-to-one to form three signal transmission channels.

3. The energy transmission device according to claim 1, characterized in that... The first shielding component includes a plurality of ring segments connected sequentially along the axial direction. One end face of two adjacent ring segments is provided with a first shoulder and the other end face is provided with a second shoulder. The first shoulder and the second shoulder are nested together.

4. The energy transmission device according to claim 1, characterized in that, Each of the first windings includes a first magnetic element and a first coil. The first magnetic element is a ring structure and has a first receiving groove. The opening of the first receiving groove faces the corresponding second winding in the same signal transmission channel, and the first coil is disposed in the first receiving groove.

5. The energy transmission device according to claim 1, characterized in that, Each of the second windings includes a second magnetic element and a second coil. The second magnetic element is a ring structure and has a second receiving slot. The opening of the second receiving slot faces the corresponding first winding in the same signal transmission channel, and the second coil is disposed in the second receiving slot.

6. The energy transmission device according to claim 5, characterized in that: The second magnetic component includes a first semi-ring portion and a second semi-ring portion spliced ​​together in the circumferential direction, and a first splicing seam is provided between the first semi-ring portion and the second semi-ring portion; The second shielding component includes a third semi-ring portion and a fourth semi-ring portion spliced ​​together in the circumferential direction, and a second splicing seam is provided between the third semi-ring portion and the fourth semi-ring portion; The first splicing seam and the second splicing seam are offset from each other in the radial direction of the original edge mechanism.

7. The energy transmission device according to claim 6, characterized in that, Both the first and second splice seams are filled with sealant; and / or, both the third and fourth semi-ring portions are provided with connecting seats for connecting to the machine tool.

8. The energy transmission device according to any one of claims 1-7, characterized in that, The first shielding member has a plurality of first wire holes through it, and the plurality of first wire holes are connected to the plurality of first receiving slots in a one-to-one correspondence; and / or, the second shielding member has a plurality of second wire holes through it, and the plurality of second wire holes are connected to the plurality of second receiving slots in a one-to-one correspondence.

9. A rotary ultrasonic machining system, characterized in that, The device includes an ultrasonic generator, a knife handle assembly with an ultrasonic transducer, and an energy transmission device according to any one of claims 1-8, wherein the energy transmission device is sleeved outside the knife handle assembly, and the primary side mechanism is electrically connected to the ultrasonic generator, and the secondary side mechanism is electrically connected to the ultrasonic transducer.

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