CN218168735U - Ultrasonic spindle and ultrasonic machining apparatus - Google Patents

Abstract

The application discloses an ultrasonic spindle and an ultrasonic processing device, which comprise a spindle shell, a rotating shaft assembly, a wireless transmitting assembly, a transmitting frame, a vibration generating base, a wireless receiving assembly, an ultrasonic vibration element and a lead; the rotary shaft assembly penetrates through the main shaft shell, the vibration generating seat is installed on the rotary shaft assembly, the wireless transmitting assembly is installed on the transmitting frame, the transmitting frame is directly or indirectly installed on the main shaft shell, the wireless receiving assembly is sleeved outside the vibration generating seat, the ultrasonic vibration element is sleeved in the vibration generating seat, the vibration generating seat is further provided with a through groove, the lead passes through the through groove, one end of the lead is connected with the wireless receiving assembly, and the other end of the lead is connected with the ultrasonic vibration element; the electric conduction between the wireless receiving assembly and the ultrasonic vibration element is stable and reliable, the dynamic balance stability of the ultrasonic main shaft is high, and the ultrasonic processing effect can be effectively ensured.

Description

Ultrasonic spindle and ultrasonic machining apparatus

Technical Field

The utility model relates to an ultrasonic machining technical field especially relates to an ultrasonic wave main shaft and ultrasonic machining device.

Background

The ultrasonic main shaft introduces a high-frequency vibration machining mechanism in the machining process, so that the surface roughness of a machined surface can be improved, the machining precision can be improved, the cutting resistance can be reduced, and the service life of a cutter can be prolonged.

At present, generally, a wireless transmission transmitting device is arranged outside a main shaft in the market, and a wireless transmission receiving device is arranged outside an ultrasonic knife handle. Therefore, the wireless transmission device and the wireless receiving device are integrated in the main shaft, please refer to fig. 1, the ultrasonic power transmitting unit 18 and the ultrasonic power receiving unit 17 are installed at the rear end of the main shaft, and the ultrasonic power transmitting unit 18 and the ultrasonic power receiving unit 17 are arranged opposite to each other and at a distance, so as to facilitate the signal transmission between the ultrasonic power transmitting unit 18 and the ultrasonic power receiving unit 17.

Although the ultrasonic power transmitting unit 18 and the ultrasonic power receiving unit 17 are integrated in the spindle to ensure the stability of signal transmission between the two, the current of the ultrasonic power receiving unit 17 needs to enter the piezoelectric ceramic sheet set 16 (as an ultrasonic vibration element) installed at the front end of the spindle through the ultrasonic power lead 15 to enable the piezoelectric ceramic sheet set 16 to be powered on for working, a wire passing hole for penetrating the ultrasonic power lead 15 needs to be formed in the spindle of the spindle, and in the process of high-speed rotation, too long swing amplitude of the ultrasonic power lead 15 can cause poor dynamic balance of the spindle and the interface of the lead is separated due to the centrifugal force of high-speed rotation of the spindle, so that the electrical conduction between the ultrasonic power receiving unit 17 and the piezoelectric ceramic sheet set 16 is unstable, and the subsequent ultrasonic processing effect is affected.

SUMMERY OF THE UTILITY MODEL

The purpose of this application aims at providing an ultrasonic wave main shaft and ultrasonic wave processingequipment, and its structural innovation avoids setting up the line hole of crossing that is used for wearing to establish long wire in the dabber of main shaft, and then has avoided high-speed rotatory in-process, and the too big and lead to main shaft dynamic balance relatively poor and lead the wire kneck to receive the high-speed rotatory centrifugal force effect of main shaft and lead to the interface to break away from the electrically conductive stability of influence that shakes of overlength wire.

In order to achieve the above object, the present application provides the following technical solutions:

the application provides an ultrasonic wave main shaft includes: the device comprises a main shaft shell, a rotating shaft assembly, a wireless transmitting assembly, a transmitting frame, a vibration generating base, a wireless receiving assembly, an ultrasonic vibration element and a lead; the rotary shaft assembly penetrates through the main shaft shell, the vibration generating seat is installed on the rotary shaft assembly, the wireless transmitting assembly is installed on the transmitting frame, the transmitting frame is directly or indirectly installed on the main shaft shell, the wireless receiving assembly is sleeved outside the vibration generating seat, the ultrasonic vibration element is sleeved in the vibration generating seat, the vibration generating seat is further provided with a through groove, a lead penetrates through the through groove, one end of the lead is connected with the wireless receiving assembly, and the other end of the lead is connected with the ultrasonic vibration element.

Further, main shaft housing's front end is provided with the front end housing, the launcher includes launcher body and launcher fender ring, the rear end face of launcher body with the front end face of front end housing laminates mutually, the launcher keeps off the ring to be located the front end of launcher body and with form between the launcher body and encircle the first holding tank that the rotation axis subassembly set up, wireless transmission subassembly locates in the first holding tank, wireless transmission subassembly is including encircleing the transmitting coil that the rotation axis subassembly set up with be used for the holding transmitting coil's transmission ferrite.

Furthermore, the vibration generating seat is mounted at the front end of the rotating shaft assembly and arranged around the rotating shaft assembly, the vibration generating seat is provided with a flange part, a second accommodating groove arranged around the rotating shaft assembly is formed between the outer side surface of the vibration generating seat and the flange part, a third accommodating groove arranged around the rotating shaft assembly is formed between the inner side surface of the vibration generating seat and the rotating shaft assembly, the wireless receiving assembly is arranged in the second accommodating groove, the wireless receiving assembly comprises a receiving coil arranged around the rotating shaft assembly, a receiving ferrite used for accommodating the receiving coil and a receiving baffle ring, and the receiving baffle ring is arranged at the rear end of the vibration generating seat; the ultrasonic vibration element is arranged in the third accommodating groove.

Further, a sealing substance is filled in a gap between the transmitting frame baffle ring and the transmitting ferrite, and a sealing substance is filled in a gap between the transmitting ferrite and the transmitting coil.

Further, a gap between the receiving baffle ring and the receiving ferrite is filled with a sealing substance, and a gap between the receiving ferrite and the receiving coil is filled with a sealing substance.

Further, the wireless receiving assembly and the wireless transmitting assembly are arranged inside and outside.

Further, the wireless receiving assembly and the wireless transmitting assembly are arranged up and down.

Further, the launcher has a hole communicated with the first receiving groove, so that a power line connected to the transmitting coil can pass through the hole.

Further, the vibration generating seat is rigidly connected with the rotating shaft assembly; the launcher is connected with the front end cover through bolts.

The application also provides an ultrasonic wave processing device, includes: the ultrasonic spindle comprises a handle and the ultrasonic spindle, wherein a mounting cavity is arranged at the front end of a mandrel of the spindle shell, and the handle is mounted in the mounting cavity.

Compared with the prior art, the scheme of the application has the following advantages:

the wireless transmission device is characterized in that the transmitting frame is arranged on a main shaft shell and the vibration generating seat is arranged on the rotating shaft component, the wireless transmitting component is arranged on the transmitting frame, the wireless receiving component is sleeved with the wireless receiving component, the ultrasonic vibration component is sleeved in the vibration generating seat, the wireless receiving component receives ultrasonic electric energy of the wireless transmitting component and sends the ultrasonic electric energy to the ultrasonic vibration component, and therefore ultrasonic vibration is achieved. The tool magazine of the ultrasonic processing device does not need to be customized, can be matched with a common tool shank to realize ultrasonic vibration, and enhances the adaptability; the ultrasonic vibration element is arranged on the vibration generating seat, the vibration generating seat is arranged at the front end of the mandrel, namely the ultrasonic vibration element is arranged on the main shaft, so that an ultrasonic knife handle with the built-in ultrasonic vibration element in the prior art is not needed, and the use cost is reduced; when the handle of a knife does not vibrate, only need to overhaul and maintain the ultrasonic main shaft, need not to investigate the handle of a knife, it is more convenient to overhaul and maintain.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an ultrasonic spindle of the prior art;

fig. 2 is a schematic structural diagram of an ultrasonic spindle provided in an embodiment of the present application;

FIG. 3 isbase:Sub>A schematic cross-sectional view taken along line A-A' of FIG. 1, showing mainly the radio receiver assembly and the radio transmitter assembly disposed inside and outside;

FIG. 4 is an enlarged view of area A of FIG. 2;

5-1,5-2 are schematic partial structural views of the ultrasonic spindle provided in the embodiment of the present application, and mainly illustrate the arrangement structures of the wireless transmitting assembly, the wireless receiving assembly and the ultrasonic vibration element;

FIG. 6 is a schematic cross-sectional view taken along line B-B' of FIG. 1;

FIG. 7 isbase:Sub>A schematic sectional view taken along the direction A-A' of FIG. 1, mainly illustrating the wireless receiving module and the wireless transmitting module disposed above and below;

FIG. 8 is an enlarged view of area B of FIG. 7;

9-1,9-2 are schematic partial structural diagrams of an ultrasonic spindle provided in the embodiment of the present application, and mainly illustrate another arrangement structure of a wireless transmitting assembly, a wireless receiving assembly and an ultrasonic vibration element;

reference numerals:

FIG. 1: 15. an ultrasonic power supply lead; 16. a piezoelectric ceramic sheet set; 17. an ultrasonic power receiving unit; 18. an ultrasonic power transmitting unit;

fig. 2-fig. 9-2: 1. a spindle housing; 10. a housing body; 20. a front bearing seat; 30. a front end cover; 301. a front bearing block nut; 302. a second duct; 40. a launcher; 401. a launcher body; 402. a launcher blocking ring; 403. a first duct; 50. a vibration generating base; 501. an ultrasonic vibration element lock nut; 502. a through groove; 503. a flange portion; 60. a wireless transmitting component; 601. a transmitting coil; 602. an emissive ferrite; 70. a wireless receiving component; 701. a receiving coil; 702. receiving a ferrite; 703. receiving a baffle ring; 80. an ultrasonic vibration element; 801. a first electrode sheet; 802. a first piezoelectric ceramic sheet; 803. a second electrode sheet; 804. a second piezoelectric ceramic sheet; 901. a pull rod; 902. A mandrel; 903. a bearing; 904. a mounting cavity; 2. a knife handle.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and are not construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present application.

In addition, in the description of the present application, the terms "front end" and "rear end" refer to that the end of the cutting tool close to the machined workpiece is the "front end" and the end away from the machined workpiece is the "rear end" during use.

As shown in fig. 1 to 9-2, the present application provides an ultrasonic spindle, which includes a spindle housing 1, a rotating shaft assembly, a wireless transmitting assembly 60, a transmitting frame 40, a vibration-generating base 50, a wireless receiving assembly 70, and an ultrasonic vibration element 80; the rotating shaft assembly penetrates through the main shaft shell 1, the vibration generating seat 50 is installed on the rotating shaft assembly, the wireless transmitting assembly 70 is installed on the transmitting frame 40, the transmitting frame 40 is directly or indirectly installed on the main shaft shell 1, the wireless receiving assembly 70 is sleeved outside the vibration generating seat 50, the ultrasonic vibration element 80 is sleeved inside the vibration generating seat 50, the vibration generating seat 50 is further provided with a through groove 502, a lead passes through the through groove 502, one end of the lead is connected with the wireless receiving assembly 70, and the other end of the lead is connected with the ultrasonic vibration element 80.

Specifically, in the embodiment of the present application, by providing the transmission frame 40 installed on the spindle housing 1 and the vibration generating base 50 installed on the rotation axis assembly, the wireless transmission assembly 60 is installed on the transmission frame 40, the wireless receiving assembly 70 is sleeved outside the vibration generating base 50, and the ultrasonic vibration element 80 is sleeved inside the vibration generating base 50, the wireless receiving assembly 70 receives the ultrasonic power of the wireless transmission assembly 60 and transmits the ultrasonic power to the ultrasonic vibration element 80, thereby implementing ultrasonic vibration, wherein the wireless receiving assembly 70 and the ultrasonic vibration element 80 are integrated into a whole and installed on the vibration generating base 50, the vibration generating base 50 is provided with the through groove 502, the wire passes through the through groove 502, one end of the wire is connected to the receiving coil 701, and the other end of the wire is connected to the ultrasonic vibration element 80, so that the dynamic balance performance of the spindle can be ensured due to the relatively short length of the wire, the situation that the overlong wireless transmission device (see fig. 1) is provided at the rear end of the spindle, the ultrasonic power wire 15 extends from the rear end of the spindle to the front end of the spindle along the central wire passing hole of the spindle and is connected to the piezoelectric ceramic sheet group 16, thereby avoiding the problem that the high-speed rotation of the wire is influenced by the high-speed rotation amplitude of the centrifugal interface. Meanwhile, the tool magazine of the ultrasonic processing device is not required to be customized, and can be matched with a common tool shank to realize ultrasonic vibration, so that the adaptability is enhanced; the ultrasonic vibration element is arranged on the vibration generating seat, the vibration generating seat is arranged at the front end of the mandrel, namely the ultrasonic vibration element is arranged on the main shaft, so that an ultrasonic knife handle with the built-in ultrasonic vibration element in the prior art is not needed, and the use cost is reduced; the ultrasonic knife handle generally needs to be redesigned in size, belongs to nonstandard parts, and is a common standard knife handle matched with the ultrasonic processing device, so that the product standard consistency is good; in addition, when the cutter handle does not vibrate, only the ultrasonic main shaft needs to be overhauled and maintained, the cutter handle does not need to be checked, and the overhauling and maintenance are more convenient.

In some embodiments, the front end of the spindle housing 1 is provided with the front end cover 30, the launcher 40 includes a launcher body 401 and a launcher baffle ring 402, the rear end surface of the launcher body 401 is attached to the front end surface of the front end cover 30 to improve the sealing performance of the ultrasonic spindle, the launcher baffle ring 402 is disposed at the front end of the launcher body 401 and forms a first accommodating groove surrounding the rotating shaft assembly with the launcher body 401, the wireless transmitting assembly 60 is disposed in the first accommodating groove, the wireless transmitting assembly 60 includes a transmitting coil 601 disposed around the rotating shaft assembly and a transmitting ferrite 602 for accommodating the transmitting coil 601; in this manner, the wireless transmission assembly 60 is mounted on the main shaft to receive the ultrasonic power of the ultrasonic generator.

It should be noted that the mounting manners of the launcher 40 shown in the drawings of the embodiment of the present application are all indirect mounting manners, that is, the front end cap 30 is provided, and the rear end face of the launcher body 401 is attached to the front end face of the front end cap 30, so as to indirectly mount the launcher 40 on the main shaft housing 1; the launcher 40 is directly mounted on the spindle housing 1 (not shown in the drawings), that is, the rear end surface of the launcher body 401 is directly attached to the front end surface of the spindle housing 1.

In some embodiments, the vibration generating base 50 is mounted at the front end of the rotating shaft assembly and is disposed around the rotating shaft assembly, the vibration generating base 50 has a flange portion 503, a second receiving groove disposed around the rotating shaft assembly is formed between the outer side surface of the vibration generating base 50 and the flange portion 503, so as to dispose the wireless receiving assembly 70 in the second receiving groove, the wireless receiving assembly 70 includes a receiving coil 701 disposed around the rotating shaft assembly, a receiving ferrite 702 for receiving the receiving coil 701, and a receiving baffle ring 703, and the receiving baffle ring 703 is disposed at the rear end of the vibration generating base 50; a third accommodating groove is formed between the inner side surface of the vibration generating seat 50 and the rotating shaft assembly, and the ultrasonic vibration element 80 is arranged in the third accommodating groove; in this way, the wireless receiving assembly 70 and the ultrasonic vibration element 80 are integrally mounted on the vibration generating base 50, and the vibration generating base 50 is mounted on the mandrel 902, so that a common tool holder is mounted on the ultrasonic spindle without using an ultrasonic tool holder with an ultrasonic vibration element built therein in the prior art, thereby reducing the use cost.

Wherein, through setting up launcher 40 of direct mount in the preceding terminal surface of front end housing 30 and installing in the seat 50 that shakes of sending out of the front end of rotation axis subassembly, launcher 40 is equipped with the first holding tank that holds wireless transmission subassembly 60, send out the seat 50 that shakes and be equipped with the second holding tank that holds wireless receiving subassembly 70 and the third holding tank that holds ultrasonic vibration component 80, and wireless transmission subassembly 60 and wireless receiving subassembly 70 set up relatively, wireless receiving subassembly 70 sends ultrasonic vibration component 80 with the ultrasonic electric energy of wireless transmission subassembly 60 through the wire, realize ultrasonic vibration.

In some of these embodiments, the gap between the transmitting ferrite 602 and the transmitting coil 601 is filled with a sealing adhesive so that the transmitting coil 601 can be fixed within the transmitting ferrite 602; the gap between the launcher blocking ring 402 and the transmitting ferrite 602 is filled with a sealing adhesive, the launcher blocking ring 402 is used for protecting the transmitting ferrite 602, and simultaneously plays a role in blocking the filled sealing adhesive between the transmitting ferrite 602 and the transmitting coil 601, so as to prevent the sealing adhesive from flowing out of other components during hot filling. The sealing adhesive is flowable in a hot state, solid at normal temperature and adhesive.

In some of these embodiments, the gap between the receiving ferrite 702 and the receiving coil 701 is filled with a sealing adhesive so that the receiving coil 701 can be fixed within the receiving ferrite 702; meanwhile, the gap between the receiving baffle ring 703 and the receiving ferrite 702 is filled with a sealing adhesive, the receiving baffle ring 703 is used for protecting the receiving ferrite 702, and simultaneously plays a role in blocking the filled sealing adhesive between the receiving ferrite 702 and the receiving coil 701, so as to prevent the sealing adhesive from flowing out to other components. Optionally, the filled sealing adhesive may be a sealant or an insulating material to support the sealing.

In some embodiments, referring to fig. 3, fig. 4 and fig. 5-2, the wireless receiving component 70 and the wireless transmitting component 60 are disposed inside and outside oppositely, specifically, the wireless receiving component 70 is an inner ring, and the wireless transmitting component 60 is an outer ring, so that the wireless receiving component 70 can conveniently and quickly receive the ultrasonic power of the wireless transmitting component 60.

In some embodiments, referring to fig. 7, fig. 8, and fig. 9-2, the wireless receiving element 70 and the wireless transmitting element 60 are disposed opposite to each other in an up-down direction, and specifically, the wireless receiving element 70 is an upper ring, and the wireless transmitting element 60 is a lower ring, so that the wireless receiving element 70 can conveniently and quickly receive the ultrasonic power of the wireless transmitting element 60.

In some embodiments, the launcher 40 has a first hole 403 communicating with the first receiving groove, and a second hole 302 communicating with the first hole 403 and extending to the rear end of the main shaft housing 1 is provided in the main shaft housing 1 for a wire connected to the transmitting coil 601 to pass through, so that the transmitting coil 601 receives ultrasonic power of an ultrasonic generator outside the ultrasonic main shaft through the wire and transmits the ultrasonic power to the receiving coil 701; the vibration generating seat 50 is provided with a through groove 502, the lead penetrates through the through groove 502, one end of the lead is connected with the receiving coil 701, the other end of the lead is connected with the ultrasonic vibration element 80, the receiving coil 701 sends the received ultrasonic electric energy to the ultrasonic vibration element 80 through a wire, the electric conduction between the wireless receiving assembly 70 and the ultrasonic vibration element 80 is more stable and reliable, the ultrasonic vibration is realized, and the good ultrasonic processing effect is ensured.

In some embodiments, referring to fig. 3 and 7, the vibration generating base 50 is rigidly connected to the mandrel 902, and optionally, the vibration generating base 50 is connected to the mandrel 902 by interference, welding or screwing; the sealing performance of the ultrasonic main shaft is improved; the launcher 40 is connected with the front end cover 30 through a bolt, specifically, the rear end face of the launcher 40 is connected with the front end face of the front end cover 30 through a bolt after being attached, so that the launcher 40 is stably connected with the front end cover 30.

In some embodiments, referring to fig. 3, 5-1, 7 and 9-1, the ultrasonic spindle further includes an ultrasonic vibration element locking nut 501, and the ultrasonic vibration element 80 is connected to the vibration generating base 50 through the ultrasonic vibration element locking nut 501, so that the ultrasonic vibration element 80 is fixed in the third receiving groove; referring to fig. 4 and 8, the ultrasonic vibration element 80 includes a first electrode plate 801, a first piezoelectric ceramic piece 802, a second electrode plate 803, and a second piezoelectric ceramic piece 804, which are sequentially stacked, wherein an end surface of the first electrode plate 801 is attached to the ultrasonic vibration element locknut 501, and an end surface of the second piezoelectric ceramic piece 804 is attached to the vibration generating base 50, so as to fix the ultrasonic vibration element 80. It should be noted that the number of the electrode plates and the piezoelectric ceramic plates of the ultrasonic vibration element 80 may be set according to specific requirements, and the embodiment of the present application is not particularly limited thereto.

In some embodiments, referring to fig. 3 and fig. 7, the rotating shaft assembly includes a pull rod 901 and a mandrel 902 sleeved outside the pull rod 901, and the vibration generating base 50 is installed at a front end of the mandrel 902 and disposed around the mandrel 902; the ultrasonic spindle further comprises a bearing 903 provided between the outside of the spindle 902 and the inside of the spindle housing 1 so that the rotary shaft assembly can rotate relative to the spindle housing 1.

Optionally, in this embodiment, referring to fig. 3 and fig. 7, the spindle housing 1 includes a housing body 10 and a front bearing seat 20 mounted at the front end of the housing body 10, and the bearing 903 is mounted between the inner side of the front bearing seat 20 and the outer side of the spindle 902; the rear end face of the front end cover 30 is attached to the front end face of the front bearing block 20, the sealing performance is enhanced, and the bearing 903 is fixed through the front bearing block nut 301. Of course, the spindle housing 1 may not include the front bearing seat 20, since in another embodiment, the front bearing seat 20 is disposed inside the spindle housing 1, and the housing body 10 is directly connected to the front cover 30.

The embodiment of the application further provides an ultrasonic processing device, including the ultrasonic spindle and the handle of a knife 2 of any embodiment of the application, the front end of the mandrel 902 in the spindle housing 1 is provided with a mounting cavity 904, and the handle of a knife 2 is installed in the mounting cavity 904.

Specifically, the transmitting coil 601 in the spindle housing 1 receives the ultrasonic electric energy of the ultrasonic generator, the receiving coil 701 receives the ultrasonic electric energy of the transmitting coil 601 and sends the ultrasonic electric energy to the ultrasonic vibration element 80, so that the ultrasonic vibration element 80 realizes ultrasonic vibration and drives the vibration generating seat 50 to vibrate, and the vibration generating seat 50 is in interference connection with the rotating shaft assembly, so that the rotating shaft assembly vibrates to drive the tool holder 2 to realize ultrasonic vibration; the tool magazine of the ultrasonic processing device is not required to be customized, can be matched with a common tool handle to realize ultrasonic vibration, and improves adaptability.

The foregoing is only a few embodiments of the present application and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present application, and that these improvements and modifications should also be considered as the protection scope of the present application.

Claims (10)

1. An ultrasonic spindle, comprising: the device comprises a main shaft shell, a rotating shaft assembly, a wireless transmitting assembly, a transmitting frame, a vibration generating base, a wireless receiving assembly, an ultrasonic vibration element and a lead; the rotary shaft assembly penetrates through the main shaft shell, the vibration generating seat is installed on the rotary shaft assembly, the wireless transmitting assembly is installed on the transmitting frame, the transmitting frame is directly or indirectly installed on the main shaft shell, the wireless receiving assembly is sleeved outside the vibration generating seat, the ultrasonic vibration element is sleeved in the vibration generating seat, the vibration generating seat is further provided with a through groove, a lead penetrates through the through groove, one end of the lead is connected with the wireless receiving assembly, and the other end of the lead is connected with the ultrasonic vibration element.

2. The ultrasonic spindle of claim 1, wherein a front end cap is disposed at a front end of the spindle housing, the launcher includes a launcher body and a launcher baffle ring, a rear end surface of the launcher body is attached to a front end surface of the front end cap, the launcher baffle ring is disposed at the front end of the launcher body and forms a first receiving groove surrounding the rotating shaft assembly with the launcher body, the wireless transmitting assembly is disposed in the first receiving groove, and the wireless transmitting assembly includes a transmitting coil disposed around the rotating shaft assembly and a transmitting ferrite for receiving the transmitting coil.

3. The ultrasonic spindle according to claim 2, wherein the vibration generating base is mounted at a front end of the rotating shaft assembly and disposed around the rotating shaft assembly, the vibration generating base has a flange portion, a second receiving groove disposed around the rotating shaft assembly is formed between an outer side surface of the vibration generating base and the flange portion, a third receiving groove disposed around the rotating shaft assembly is formed between an inner side surface of the vibration generating base and the rotating shaft assembly, the wireless receiving assembly is disposed in the second receiving groove, the wireless receiving assembly includes a receiving coil disposed around the rotating shaft assembly, a receiving ferrite for receiving the receiving coil, and a receiving baffle ring, and the receiving baffle ring is disposed at a rear end of the vibration generating base; the ultrasonic vibration element is arranged in the third accommodating groove.

4. An ultrasonic spindle according to claim 2 in which the gap between the transmitter mount stop ring and the transmitting ferrite is filled with a sealing substance and the gap between the transmitting ferrite and the transmitting coil is filled with a sealing substance.

5. An ultrasonic spindle according to claim 3, wherein the gap between the receiving baffle ring and the receiving ferrite is filled with a sealing substance, and the gap between the receiving ferrite and the receiving coil is filled with a sealing substance.

6. The ultrasonic spindle of claim 1, wherein the wireless receiving assembly and the wireless transmitting assembly are disposed internally and externally.

7. The ultrasonic spindle of claim 1, wherein the wireless receiving assembly and the wireless transmitting assembly are disposed one above the other.

8. An ultrasonic spindle according to claim 2 in which the holder has a bore communicating with the first receiving recess for passage therethrough of a power cord connected to the transmitting coil.

9. The ultrasonic spindle of claim 2, wherein the vibration-inducing mount is rigidly connected to the rotating shaft assembly; the launcher is connected with the front end cover through bolts.

10. An ultrasonic machining apparatus, comprising: the ultrasonic spindle of any one of claims 1-9 and a tool shank, the front end of the spindle housing being provided with a mounting cavity in which the tool shank is mounted.

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