An embedded ultrasonic spindle structure

Abstract

The utility model relates to mechanical processing technical field discloses a kind of embedded ultrasonic spindle structure, including body, shaft core, front bearing, bearing compression ring, wireless power supply component, ultrasonic tool shank and wireless power receiving component, the shaft core is located in the inner chamber of the body, and the front bearing is located between the outside of the shaft core and the inside of the body;The bearing compression ring includes embedding part and matching part, and the embedding part is located between the body inside and the shaft core outside;The matching part protrudes the front end surface of the shaft core, and wireless power supply component is arranged on the matching part;The front end cavity of the shaft core is provided with ultrasonic tool shank, and wireless power receiving component is arranged on the ultrasonic tool shank, and the wireless power supply component and the wireless power receiving component carry out gap cooperation.The utility model reduces the installation space occupied by wireless power supply component, simplifies the structure of main shaft front end, improves the working efficiency of main shaft.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and more specifically, to an embedded ultrasonic spindle structure. Background Technology

[0002] Ultrasonic machining, due to the ultrasonic energy at the tool tip, is widely used for machining non-metallic, hard and brittle, and other difficult-to-machine materials, as well as for machining micro-holes and deep holes. Currently, ultrasonic spindles generally place the ultrasonic system externally in the spindle space, that is, externally place the ultrasonic transmitter. This increases the overhang of the ultrasonic tool holder and the mass of the overhang, which will cause a decrease in the natural frequency of the entire rotor system, resulting in increased amplitude and intensified vibration of the entire machine.

[0003] Existing spindle structures place the ultrasonic transmitter inside the front end of the spindle. However, this ultrasonic transmitter occupies mounting space at the front end of the spindle, and the structure of the front end is relatively complex. Furthermore, the tool holder is detachably mounted at the front end of the spindle. In certain machining conditions where tool holder replacement is required, the ultrasonic transmitter at the front end of the spindle is prone to interference with the external tool changer, affecting the spindle's working efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the technical problems existing in the prior art by providing an embedded ultrasonic spindle structure, which reduces the installation space occupied by the wireless power supply component, simplifies the structure of the front end of the spindle, and improves the working efficiency of the spindle.

[0005] To solve the problems mentioned above, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides an embedded ultrasonic spindle structure, including a body, a spindle core, a front bearing, a bearing clamping ring, a wireless power supply component, an ultrasonic scalpel handle, and a wireless power receiving component. The spindle core is located in the inner cavity of the body, and the front bearing is located between the outer side of the spindle core and the inner side of the body.

[0007] The bearing clamping ring includes an embedded part and a mating part. The embedded part is located between the inner side of the main body and the outer side of the shaft core. The mating part protrudes from the front end face of the shaft core, and a wireless power supply component is provided on the mating part.

[0008] An ultrasonic scalpel handle is provided in the inner cavity of the front end of the shaft core. A wireless power receiving component is provided on the ultrasonic scalpel handle. The wireless power supply component and the wireless power receiving component are fitted together with a clearance.

[0009] Furthermore, the inner side of the mating part on the bearing clamping ring is provided with a wireless power supply component, and the outer peripheral surface of the ultrasonic scalpel handle is provided with a wireless power receiving component. The wireless power supply component and the wireless power receiving component are fitted with a radial clearance along the shaft core.

[0010] Furthermore, a first boss and a second boss are formed on the end face of the embedded part that abuts against the front bearing, and the end of the first boss abuts against the outer ring of the front bearing.

[0011] Furthermore, it also includes a front sealing ring, which is disposed inside the bearing clamping ring. The front sealing ring is nested with the second boss of the embedded part and has a clearance fit; the end face of the front sealing ring abuts against the inner ring of the front bearing.

[0012] Furthermore, a connecting boss is provided on the outer periphery of the embedded part away from the front bearing, and the connecting boss is connected to or abuts against the inner sidewall of the body.

[0013] Furthermore, the main body is provided with a connected air-tight flow channel and a radial air channel;

[0014] The outer periphery of the embedded part is provided with a first air storage groove, and the embedded part is provided with a ventilation groove that communicates with the first air storage groove. The ventilation groove is connected to the radial air channel and the inner cavity of the embedded part respectively.

[0015] Furthermore, it also includes an air blowing ring, which is disposed in the inner cavity of the bearing clamping ring and sleeved on the outer periphery of the connection end between the ultrasonic scalpel handle and the shaft core. The inner cavity of the air blowing ring is connected to the air groove of the embedded part.

[0016] Furthermore, the outer periphery of the air-blowing ring is provided with a second air storage groove, which is connected to the air groove of the bearing clamping ring. The second air storage groove is provided with a plurality of radial air holes, which are connected to the inner cavity of the air-blowing ring.

[0017] Furthermore, a protective cover is provided at the end of the bearing clamping ring. The protective cover and the air blowing ring are located on opposite sides of the wireless power supply component to protect the wireless power supply component.

[0018] Furthermore, it also includes a front cover plate, which is disposed on the front end face of the body and surrounds the outer periphery of the mating part of the bearing clamping ring.

[0019] Alternatively, it may also include a front cover plate, which is disposed on the front end face of the body, and the front cover plate surrounds the outer periphery of the mating part on the bearing clamping ring and presses against the side corresponding to the embedded part.

[0020] Furthermore, the front end of the main body is provided with a mounting step portion, the bearing clamping ring is located inside the mounting step portion, and the embedded portion is matched and limited by the step surface inside the mounting step portion.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This utility model features a bearing clamping ring that is fitted together with the main body and the shaft core, and is used to install a wireless power supply component. The wireless power supply component is fitted with the wireless power receiving component on the ultrasonic scalpel holder with a clearance, which reduces the installation space occupied by the wireless power receiving component, simplifies the structure at the end of the spindle, avoids interference during tool changes, ensures the overall reliability and safety of the spindle structure, and thus improves the working efficiency of the spindle structure. Attached Figure Description

[0023] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a schematic diagram of the embedded spindle structure in Embodiment 1 of this utility model.

[0025] Figure 2 This is a partial structural schematic diagram of Embodiment 1 of the embedded spindle structure in this utility model.

[0026] Figure 3 This is a schematic diagram of the bearing clamping ring in Embodiment 1 of this utility model.

[0027] Figure 4 This is an isometric view of the bearing clamping ring in Embodiment 1 of this utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the main body in Embodiment 1 of this utility model.

[0029] Figure 6 This is a schematic diagram of the second embodiment of the embedded spindle structure in this utility model.

[0030] Among them, 1-body, 2-shaft core, 3-front bearing, 4-bearing clamping ring, 41-embedded part, 42-fitting part, 5-wireless power supply component, 6-front sealing ring, 7-ultrasonic knife handle, 8-wireless power receiving component, 9-front cover plate, 11-air blowing ring, 101-axial wire hole, 102-radial wire hole, 103-air seal flow channel, 104-radial air channel, 411-first boss, 412-second boss, 413-connecting boss, 414-wire hole, 415-air storage groove, 416-radial ventilation groove, 417-axial ventilation groove, 71-transducer component, 111-second air storage groove, 112-radial ventilation hole. Detailed Implementation

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.

[0032] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a particular order. In the specification, claims, and accompanying drawings of this utility model, when an element is referred to as "fixed to," "mounted to," "set on," or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it can be directly or indirectly connected to that other element.

[0033] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] Example 1

[0035] See Figure 1 and Figure 2 As shown, this utility model provides an embedded ultrasonic spindle structure, including a body 1, a spindle core 2, a front bearing 3, a bearing clamping ring 4, a wireless power supply component 5, an ultrasonic scalpel handle 7, and a wireless power receiving component 8; the spindle core 2 is disposed in the inner cavity of the body 1, and the front bearing 3 is disposed between the outer side of the spindle core 2 and the inner side of the body 1, so that the spindle core 2 can rotate relative to the body 1.

[0036] The bearing clamping ring 4 includes an insert 41 and a mating part 42. The insert 41 is located between the inner side of the body 1 and the outer side of the shaft core 2, and the insert 41 clamps and positions the front bearing 3. The mating part 42 protrudes from the front end face of the shaft core 2, and a wireless power supply component 5 is provided on the mating part 42.

[0037] An ultrasonic scalpel handle 7 is provided in the inner cavity of the front end of the shaft core 2. The ultrasonic scalpel handle 7 is provided with a wireless power receiving component 8. The wireless power supply component 5 and the wireless power receiving component 8 are interlocked to transmit wireless power.

[0038] Specifically, the outer side of the shaft core 2 and the inner side of the body 1 are respectively provided with positioning protrusions 21. One end face of the front bearing 3 is in contact with the positioning protrusions 21, and the other end face of the front bearing 3 abuts against the embedded part 41 of the bearing clamping ring 4. The outer circular surface of the embedded part 41 and the inner side wall of the body 1 can be threaded respectively, and the two are screwed together by the threads, which facilitates the connection and fit between the two, and realizes the fastening and positioning of the front bearing 3, so that the shaft core 2 can reliably rotate within the body 1.

[0039] In this embodiment, the main body 1 and the shaft core 2 have opposite front and rear ends, and the ultrasonic stalk 7 is usually located at the front end of both the main body 1 and the shaft core 2. By setting a bearing clamping ring 4, which adopts an insert part 41 and a mating part 42, the insert part 41 is installed and positioned with the ends of both the main body 1 and the shaft core 2. The mating part 42 is provided with a wireless power supply component 5, which is clearance-fitted with the wireless power receiving component 8 on the ultrasonic stalk 7. This simplifies the structure of the spindle end, ensures reliable structural installation and fit, reduces installation space, avoids interference between the ultrasonic system at the front end of the spindle (i.e., the wireless power supply component 5 and the wireless power receiving component 8) and the external tool changer, and ensures the overall reliability of the spindle structure.

[0040] For further details, please refer to [link / reference]. Figure 3 and Figure 4 As shown, the inner side of the mating part 42 on the bearing clamping ring 4 is provided with an annular receiving groove, and the wireless power supply component 5 is installed in the receiving groove; the outer peripheral surface of the ultrasonic scalpel handle 7 is provided with a wireless power receiving component 8. The wireless power supply component 5 and the wireless power receiving component 8 are fitted with a radial clearance along the shaft core 2 to realize wireless energy transmission and reduce the axial installation space.

[0041] Specifically, the wireless power supply component 5 is connected to an external ultrasonic power source, and the wireless power receiving component 8 is connected to the transducer component 71 inside the ultrasonic scalpel handle 7. The external ultrasonic power source provides ultrasonic energy, and the energy is wirelessly transmitted through the wireless power receiving component 8 and the wireless power supply component 5, so that the transducer component 71 inside the ultrasonic scalpel handle 7 can work, realize the transfer of ultrasonic energy and convert electrical energy into mechanical energy, thereby driving the ultrasonic scalpel handle 7 to perform ultrasonic vibration.

[0042] Furthermore, a first boss 411 and a second boss 412 are formed on the end face of the embedded part 41 of the bearing clamping ring 4 that abuts against the front bearing 3. The end of the first boss 411 abuts against the outer ring of the front bearing 3, which facilitates reliable positioning of the front bearing 3. A connecting boss 413 is also provided on the outer periphery of the embedded part 41 away from the front bearing 3. The connecting boss 413 cooperates with the inner sidewall of the body 1 to achieve reliable positioning of the two.

[0043] Furthermore, the main shaft structure also includes a front sealing ring 6, which is located inside the bearing clamping ring 4. The front sealing ring 6 is nested with the second boss 412 of the embedded part 41 and has a clearance fit. The end face of the front sealing ring 6 abuts against the inner ring of the front bearing 3, which can better achieve the fastening and positioning of the front bearing 3, so that the shaft core 2 can rotate reliably within the body 1.

[0044] In this embodiment, a bearing clamping ring 4 and a front sealing ring 6 are provided between the body 1 and the shaft core 2. The bearing clamping ring 4 and the front sealing ring 6 respectively abut against the outer ring and inner ring of the front bearing 3. The connecting boss 413 of the embedded part 41 can be fixed to the body 1 by screwing or other connection methods, and the front sealing ring 6 can be fixed to the outer periphery of the shaft core 2 by screwing. This can reliably fasten and position the front bearing 3, ensuring the reliability of the connection between the body 1 and the shaft core 2. The bearing clamping ring 4 and the front sealing ring 6 are nested together with a clearance fit, forming a labyrinth seal structure, which can protect the front bearing 3, prevent impurities such as cutting fluid from entering the front bearing 3, improve the sealing performance of the spindle structure, and ensure the working efficiency of the spindle.

[0045] For further details, please refer to [link / reference]. Figure 5 As shown, the main body 1 is provided with a gas-tight flow channel 103 and a radial air channel 104 that are connected. The radial air channel 104 is connected to the inner cavity of the main body 1 and corresponds to the outer periphery of the embedded part 41 on the bearing clamping ring 4.

[0046] The outer periphery of the embedded part 41 on the bearing clamping ring 4 is provided with a first air storage groove 415. The embedded part 41 is also provided with a ventilation groove (i.e., a radial ventilation groove 416 and an axial ventilation groove 417 connected to the first air storage groove 415) and the ventilation groove is connected to the radial air passage 104 and the inner cavity of the embedded part 41 on the bearing clamping ring 4, respectively.

[0047] Furthermore, the spindle structure also includes an air-blowing ring 11, which is located within the inner cavity of the bearing clamping ring 4. The air-blowing ring 11 is sleeved on the outer periphery of the connection end between the ultrasonic scalpel handle 7 and the shaft core 2, with one side of the air-blowing ring 11 abutting against the side of the wireless power supply component 5. A second air storage groove 111 is provided on the outer periphery of the air-blowing ring 111, which communicates with the venting groove of the bearing clamping ring 4. Multiple radial venting holes 112 are provided within the second air storage groove 111, and these radial venting holes 112 communicate with the inner cavity of the air-blowing ring 11. The multiple radial venting holes 112 ensure a more uniform flow of compressed gas, and the independent arrangement of the gas flow channel and the wire passage also guarantees the overall reliability of the spindle structure.

[0048] Specifically, external compressed gas enters the body 1 through the gas-sealed flow channel 103 and enters the first gas storage groove 415 of the bearing clamping ring 4 through the radial air channel 104. The compressed gas is further blown into the inner cavity of the bearing clamping ring 4 through the ventilation grooves (i.e., the radial ventilation groove 416 and the axial ventilation groove 417). The compressed gas in the axial ventilation groove 417 enters the second gas storage groove 111 and enters the outer peripheral surfaces of both the shaft core 2 and the ultrasonic knife holder 7 through multiple radial ventilation holes 112.

[0049] During the aforementioned compressed gas flow process, the flowing gas can blow away dust, impurities, or liquids in the gaps to keep them clean without affecting the wireless power transmission between the wireless power supply component 5 and the wireless power receiving component 8. At the same time, the continuous airflow forms a positive pressure seal, which can prevent external dust and impurities from entering the interior of the spindle structure from the gaps, thereby improving its stability and reliability. In addition, the flowing gas can also improve heat dissipation, reduce the temperature of the spindle core 2, the wireless power supply component 5, and the wireless power receiving component 8, improve the working conditions of the spindle core 2, improve the wireless transmission efficiency of the wireless power supply component 5 and the wireless power receiving component 8, extend the service life of the spindle structure, and ensure the overall reliability of the spindle structure.

[0050] Furthermore, the bearing clamping ring 4 is provided with a wire passage groove 414, which is connected to the receiving groove, so that the lead wire of the wireless power supply component 5 in the receiving groove can pass through and be connected to the external ultrasonic power supply. Figure 4 As shown, the main body 1 is provided with a wire passage hole (i.e., a connected axial wire passage hole 101 and a radial wire passage hole 102). The radial wire passage hole 102 is connected to the inner cavity of the main body 1. The radial wire passage hole 102 is also connected to the wire passage groove 414 of the bearing clamping ring 4, which can also facilitate the lead wire of the wireless power supply component 5 to pass through.

[0051] Furthermore, a protective cover 12 is provided at the end of the bearing clamping ring 4. The protective cover 12 and the air blowing ring 11 are located on opposite sides of the wireless power supply component 5 to protect the wireless power supply component 5 and prevent the wireless power supply component 5 from being corroded by cutting fluid or disturbed by impurities.

[0052] For details, please refer to [link / reference]. Figure 3 As shown, the bearing clamping ring 4 has a first receiving groove 401, a second receiving groove 402, and a limiting boss 403 arranged sequentially along its inner axial direction. The inner diameter of the limiting boss 403 is smaller than the inner diameter of the second receiving groove 402, which facilitates the installation and positioning of the air blowing ring 11. The wireless power supply component 5 is located in the first receiving groove 401, and the air blowing ring 11 is located in the second receiving groove 402. The two sides of the air blowing ring 11 abut against the wireless power supply component 5 and the limiting boss 403, respectively, so that the air blowing ring 11 and the wireless power supply component 5 are installed and positioned stably and reliably, thereby ensuring the installation reliability of the overall structure.

[0053] Furthermore, the spindle structure also includes a front cover plate 9, which is located at the front end of the body 1 and surrounds the outer periphery of the mating part 42 on the bearing clamping ring 4. This facilitates installation and prevents impurities such as cutting fluid from entering the spindle, thus protecting the spindle structure. It also improves the overall sealing performance of the spindle structure and facilitates disassembly and assembly.

[0054] In other embodiments, to avoid machining threads on the inner wall of the body 1 and the outer circumferential surface of the bearing clamping ring 4, which would affect the positioning accuracy of both the body 1 and the bearing clamping ring 4 and make installation inconvenient, the outer circumferential surface of the bearing clamping ring 4 abuts against the inner wall of the body 1. A front cover plate 9 is located at the front end of the body 1, and the front cover plate 9 surrounds the outer circumference of the mating part 42 on the bearing clamping ring 4. The front cover plate 9 presses against the side corresponding to the embedded part 41. The bearing clamping ring 4 positions the bearing 3 through the front cover plate 9, improving positioning accuracy and facilitating disassembly and assembly.

[0055] Example 2

[0056] The difference between this embodiment 2 and embodiment 1 is that the main body 1 and the front cover plate 9 are an integral structure. (See attached document.) Figure 6 As shown, the front end of the main body 1 is provided with a mounting step 111, the bearing clamping ring 4 is located inside the mounting step 111, and the embedded part 41 is matched and limited by the step surface inside the mounting step 111.

[0057] In this second embodiment, there is no need to set the front cover 9. The installation step 111 is set at the front of the main body 1 to cooperate with the bearing clamping ring 4. This can serve as both a limit for installation and a protection function, simplifying the structure of the front of the main body 1 and reducing the installation space.

[0058] Specifically, in order to facilitate installation and limit positioning, a retaining ring 112 is provided between the main body 1 and the shaft core 2. The retaining ring 112 is located on the side of the front bearing 3 away from the front end of the main body 1, that is, the retaining ring 112 and the bearing clamping ring 4 are located on opposite sides of the front bearing 3, so as to reliably position the front bearing 3.

[0059] In the embedded spindle structure provided by this utility model, the wireless power supply component 5 is embedded in the bearing clamping ring 4 used for fastening the front bearing 3. The bearing clamping ring 4 is partially located between the outer side of the spindle core 2 and the inner side of the main body 1. That is, the rear end face of the bearing clamping ring 4 does not fit against the front end face of the spindle body 1, but is only threadedly connected or abutted against the inner side of the spindle body 1. In this way, there is no need to consider the tightness between the bearing clamping ring 4 and the main body 1, which makes installation convenient and reliable, and is also superior to the existing method of controlling the tightness between the front end cover and the spindle body.

[0060] In this invention, the wireless power supply component 5 is embedded in the bearing clamping ring 4, which is closer to the front bearing 3. This reduces the overhang of the ultrasonic scalpel handle 7 and the mass of the overhang, and increases the natural frequency of the rotor system. This ensures the ultrasonic amplitude of the spindle operation and eliminates the need to consider the problem of increased vibration or the space occupied by other external devices when using an external transmitter, thereby ensuring the efficiency of the spindle operation.

[0061] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. An embedded ultrasonic spindle structure, characterized in that: It includes a body, a shaft core, a front bearing, a bearing clamping ring, a wireless power supply component, an ultrasonic scalpel handle, and a wireless power receiving component. The shaft core is located in the inner cavity of the body, and the front bearing is located between the outer side of the shaft core and the inner side of the body. The bearing clamping ring includes an embedded part and a mating part. The embedded part is located between the inner side of the main body and the outer side of the shaft core. The mating part protrudes from the front end face of the shaft core, and a wireless power supply component is provided on the mating part. An ultrasonic scalpel handle is provided in the inner cavity of the front end of the shaft core. A wireless power receiving component is provided on the ultrasonic scalpel handle. The wireless power supply component and the wireless power receiving component are fitted together with a clearance.

2. The embedded ultrasonic spindle structure according to claim 1, characterized in that: The inner side of the mating part on the bearing clamping ring is provided with a wireless power supply component, and the outer peripheral surface of the ultrasonic scalpel handle is provided with a wireless power receiving component. The wireless power supply component and the wireless power receiving component are fitted with a radial clearance along the shaft core.

3. The embedded ultrasonic spindle structure according to claim 1, characterized in that: A first boss and a second boss are formed on the end face of the embedded part that abuts against the front bearing, and the end of the first boss abuts against the outer ring of the front bearing.

4. The embedded ultrasonic spindle structure according to claim 3, characterized in that: It also includes a front sealing ring, which is disposed inside the bearing clamping ring. The front sealing ring is nested with the second boss of the embedded part and has a clearance fit; the end face of the front sealing ring abuts against the inner ring of the front bearing.

5. The embedded ultrasonic spindle structure according to claim 3, characterized in that: The embedded part is also provided with a connecting boss on its outer periphery away from the front bearing, and the connecting boss is connected to or abuts against the inner sidewall of the body.

6. The embedded ultrasonic spindle structure according to any one of claims 1 to 5, characterized in that: The main body is provided with a connected air-tight flow channel and a radial air channel; The outer periphery of the embedded part is provided with a first air storage groove, and the embedded part is provided with a ventilation groove that communicates with the first air storage groove. The ventilation groove is connected to the radial air channel and the inner cavity of the embedded part respectively.

7. The embedded ultrasonic spindle structure according to claim 6, characterized in that: It also includes an air blowing ring, which is disposed in the inner cavity of the bearing clamping ring and sleeved on the outer periphery of the connection end between the ultrasonic scalpel handle and the shaft core. The inner cavity of the air blowing ring is connected to the air groove of the embedded part.

8. The embedded ultrasonic spindle structure according to claim 7, characterized in that: The outer periphery of the air-blowing ring is provided with a second air storage groove, which is connected to the air groove of the bearing clamping ring. The second air storage groove is provided with a plurality of radial air holes, which are connected to the inner cavity of the air-blowing ring.

9. The embedded ultrasonic spindle structure according to claim 7, characterized in that: The bearing clamping ring is also provided with a protective cover at its end. The protective cover and the air blowing ring are located on opposite sides of the wireless power supply component to protect the wireless power supply component.

10. The embedded ultrasonic spindle structure according to claim 5, characterized in that: It also includes a front cover plate, which is disposed on the front end face of the body and surrounds the outer periphery of the mating part of the bearing clamping ring. Alternatively, it may also include a front cover plate, which is disposed on the front end face of the body, and the front cover plate surrounds the outer periphery of the mating part on the bearing clamping ring and presses against the side corresponding to the embedded part.

11. The embedded ultrasonic spindle structure according to claim 1, characterized in that: The front end of the main body is provided with a mounting step, the bearing clamping ring is located inside the mounting step, and the embedded part is matched and limited by the step surface inside the mounting step.

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