CN220837956U - Built-in direct-connection ultrasonic spindle unit of wireless induction module - Google Patents

Abstract

The utility model discloses a built-in direct-connection ultrasonic spindle unit of a wireless induction module, which relates to the technical field of ultrasonic machining and comprises a spindle assembly, a wireless induction module, a plurality of limiting blocks, conductive movable pieces and an adjusting assembly, wherein the number of the conductive movable pieces corresponds to that of the limiting blocks. One end of the shaft assembly is used for installing a cutter; the wireless sensing module is arranged on the shaft assembly; the limiting blocks are arranged at one end of the shaft assembly for installing the cutter and are distributed along the circumferential direction of the shaft assembly, the limiting blocks are provided with mounting grooves which extend towards the axis of the shaft assembly and are close to each other, and each mounting groove is internally provided with a conductive movable piece and an adjusting assembly; the conductive movable piece is connected with the wireless sensing module through a wire; the adjusting component is in transmission connection with the conductive movable piece, and the adjusting component can drive the conductive movable piece to move in the mounting groove. According to the built-in direct-connection ultrasonic main shaft unit of the wireless induction module, the shaft assembly and the conductive structure of the tool handle can be flexibly connected, so that the abrasion on the tool handle is small, and the service life is long.

Description

Built-in direct-connection ultrasonic spindle unit of wireless induction module

Technical Field

The utility model relates to the technical field of ultrasonic processing, in particular to a built-in direct-connection ultrasonic spindle unit of a wireless induction module.

Background

Ultrasonic processing is widely used for processing difficult-to-process materials such as nonmetal, hard and brittle materials and processing micro holes and deep holes because the tool nose of the tool can have ultrasonic energy.

The main structure of ultrasonic processing is provided with a knife handle, a transducer component and a power supply device. The transducer assembly is often arranged on the cutter handle, the power supply device is often arranged on the main shaft, the power supply device adopts a slip ring in early stage, but the slip ring is easy to wear due to high rotating speed of the main shaft, and the slip ring is gradually replaced by the wireless induction module.

The wireless induction module is mainly in contact conduction with the conductive structure of the tool handle through the conductive structure on the main shaft so as to connect the wireless induction module with the transducer assembly in the tool handle. At present, a conductive structure on a main shaft is easy to wear, and particularly after a cutter handle is frequently replaced for a long time, the conductive structure of the cutter handle and the conductive structure of the main shaft are gradually worn by friction, so that gaps exist between the conductive structure of the cutter handle and the conductive structure of the main shaft, and the conductive structure of the main shaft cannot be contacted with each other, and therefore an ultrasonic processing function is lost. In addition, the conductive structure on the main shaft also can abrade the connecting conical surface of the cutter handle, so that the contact precision and the contact area of the cutter handle are reduced.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the built-in direct-connection ultrasonic main shaft unit of the wireless induction module, the shaft assembly and the conductive structure of the tool handle can be flexibly connected, the abrasion to the tool handle is small, and the service life is long.

According to the embodiment of the utility model, the built-in direct-connection ultrasonic main shaft unit of the wireless induction module comprises: a shaft assembly having one end for mounting a tool;

The wireless sensing module is arranged on the shaft assembly;

The limiting blocks are arranged at one end of the shaft assembly, used for installing a cutter, and distributed along the circumferential direction of the shaft assembly, each limiting block is provided with a mounting groove, each mounting groove extends towards the axis of the shaft assembly to be close to the corresponding mounting groove, and each mounting groove is internally provided with a conductive movable part and an adjusting assembly;

The conductive movable piece is connected with the wireless induction module through a wire;

The adjusting component is in transmission connection with the conductive movable piece, and the adjusting component can drive the conductive movable piece to move in the mounting groove.

The wireless induction module built-in type direct-connection ultrasonic main shaft unit provided by the embodiment of the utility model has at least the following beneficial effects: the shaft component is used for driving the installed cutter to rotate during processing; the wireless induction module is used for transmitting electric energy between the static piece and the rotating piece so as to transmit the electric energy to the conductive movable piece; the limiting block not only can play a role in positioning during installation of the cutter, but also can provide an installation basis of the conductive movable piece; through the conductive movable part of adjusting part removal, when axle subassembly installation cutter, conductive movable part can flexible displacement, reduces the wearing and tearing degree between cutter and the conductive movable part as far as, prolongs conductive movable part and cutter's life.

According to some embodiments of the utility model, the adjusting assembly comprises a fixing piece and a first elastic connecting piece, the fixing piece is fixedly arranged in the mounting groove, the fixing piece is provided with an adjusting groove coaxial with the mounting groove, the first elastic connecting piece and the conductive movable piece are both arranged in the adjusting groove, one end of the first elastic connecting piece is abutted against the fixing piece, the other end of the first elastic connecting piece is abutted against the conductive movable piece, and the first elastic connecting piece can push the conductive movable piece to approach towards the axis of the shaft assembly.

According to some embodiments of the utility model, a first step surface is arranged in the mounting groove, the fixing piece is inserted into the mounting groove, and the fixing piece abuts against the first step surface.

According to some embodiments of the utility model, the fixing element is in threaded engagement with the mounting groove.

According to some embodiments of the utility model, the conductive movable member is a metal sphere, the metal sphere is arranged in the adjusting groove, one end of the adjusting groove, which is close to the axis of the shaft assembly, is provided with a reducing portion, and the inner diameter of the reducing portion is smaller than the diameter of the metal sphere.

According to some embodiments of the utility model, the first resilient connecting element is a spring.

According to some embodiments of the utility model, the adjusting assembly comprises a set screw and a second elastic connecting piece, the second elastic connecting piece is arranged in the mounting groove, one end of the second elastic connecting piece is provided with the set screw, the other end of the second elastic connecting piece is provided with the conductive movable piece, the conductive movable piece is positioned at one end, close to the axis of the shaft assembly, of the mounting groove, and the set screw is in threaded fit connection with the mounting groove.

According to some embodiments of the utility model, a second step surface is arranged in the mounting groove, the conductive movable piece comprises a column body and a contact, the contact is connected to the column body, the contact extends out of the mounting groove, the column body is provided with a third step surface, and the third step surface can be abutted against the second step surface.

According to some embodiments of the utility model, the shaft assembly comprises a shaft core, an outer sleeve body and a supporting assembly, wherein one end of the shaft core is used for installing a cutter, the limiting block is arranged at the end, the supporting assembly is sleeved on the shaft core, the outer sleeve body is sleeved on the supporting assembly, an assembling space is formed between the outer sleeve body and the shaft core in a surrounding mode, the shaft core and the outer sleeve body can rotate relatively, and the wireless sensing module is arranged in the assembling space.

According to some embodiments of the utility model, the wireless sensing module comprises a power supply assembly and a power receiving assembly, wherein the power supply assembly is connected to the outer sleeve body, the power receiving assembly is connected to the shaft core, the power receiving assembly is arranged opposite to the power supply assembly, and the power receiving assembly is electrically connected with the conductive movable piece.

According to some embodiments of the utility model, the mounting groove is open at one end close to the axis of the shaft assembly, and is closed at the other end, the adjusting assembly comprises a third elastic connecting piece, the third elastic connecting piece is arranged in the mounting groove, one end of the third elastic connecting piece is abutted with the closed end of the mounting groove, and the conductive movable piece is arranged at the other end of the third elastic connecting piece.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a shaft assembly coupling cutter according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing a structure of a conductive movable member contacting a tool according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a stopper and a conductive movable member according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a stopper according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a column and a contact type conductive movable member and a stopper according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a third elastic connecting member disposed in a mounting groove according to an embodiment of the present utility model;

Fig. 7 is a schematic cross-sectional structure diagram of a wireless sensing module built-in direct-connection ultrasonic spindle unit according to an embodiment of the utility model.

Reference numerals:

The shaft assembly 100, the shaft core 110, the outer housing 120, the supporting assembly 130, the wireless sensing module 200, the power supply assembly 210, the power receiving assembly 220, the stopper 300, the mounting groove 310, the first step surface 311, the second step surface 312, the conductive movable member 400, the metal ball 410, the cylinder 420, the contact 430, the adjusting assembly 500, the fixing member 510, the adjusting groove 511, the first elastic connecting member 520, the set screw 530, the second elastic connecting member 540, the third elastic connecting member 550, and the cutter 600.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1, a wireless sensing module built-in type direct-connection ultrasonic spindle unit according to an embodiment of the present utility model includes a spindle assembly 100, a wireless sensing module 200, a plurality of stoppers 300, and conductive moving members 400 and adjusting assemblies 500 corresponding to the number of the stoppers 300.

One end of the shaft assembly 100 is used for mounting a cutter;

the wireless sensing module 200 is disposed on the shaft assembly 100;

The limiting blocks 300 are arranged at one end of the shaft assembly 100 for installing a cutter and are distributed along the circumferential direction of the shaft assembly 100, the limiting blocks 300 are provided with mounting grooves 310, the mounting grooves 310 extend towards the axis of the shaft assembly 100 to be close, and each mounting groove 310 is internally provided with a conductive movable piece 400 and an adjusting assembly 500;

wherein, the conductive movable piece 400 is connected with the wireless sensing module 200 through a wire;

the adjustment assembly 500 is in driving connection with the conductive movable member 400, and the adjustment assembly 500 is capable of driving the conductive movable member 400 to move within the mounting slot 310.

The shaft assembly 100 has a fixed part and also a rotating part, one end of the shaft assembly 100 is used for installing a cutter, in particular, the cutter is installed on the rotating part, and the cutter is driven to rotate by the shaft assembly 100 to process a workpiece. The wireless sensing module 200 is disposed on the shaft assembly 100, and performs non-contact power transmission through electromagnetic conversion, that is, power is transmitted from the fixed component to the rotating component of the shaft assembly 100, and further, power is transmitted to the tool through the contact between the conductive movable component 400 and the conductive component of the tool.

When the cutter is installed, the cutter handle of the cutter is inserted towards the shaft assembly 100, the limiting block 300 arranged on the shaft assembly 100 can axially abut against the cutter to position the cutter, and the cutter can be prevented from directly striking the shaft assembly 100 when the cutter is automatically installed. The limiting block 300 mainly provides a mounting foundation for the conductive movable piece 400, the limiting block 300 is provided with a mounting groove 310, the mounting groove 310 extends towards the axis direction of the shaft assembly 100 to be close, and the conductive movable piece 400 moves in the mounting groove 310 to contact with a conductive part on the cutter, so that electrical connection is realized.

Referring to fig. 2, the adjustment assembly 500 is used to control the movement of the conductive movable member 400 within the mounting slot 310 to achieve a flexible connection between the conductive movable member 400 and the conductive components of the tool. Specifically, in the process of installing the cutter, the conductive movable part 400 is not in contact with the conductive part of the cutter immediately, but is in contact with other parts of the cutter, and the conductive movable part 400 can move through flexible adjustment of the adjusting assembly 500, so that rigid friction between the conductive movable part 400 and the cutter is avoided, and the abrasion degree of the conductive movable part 400 and the cutter is greatly reduced. After the cutter is installed in place, the conductive movable part 400 is in flexible contact with the conductive part of the cutter, so that the contact reliability of the conductive movable part and the conductive part can be improved, and ultrasonic processing can be normally performed.

Referring to fig. 3, it can be understood that the adjusting assembly 500 includes a fixing member 510 and a first elastic connection member 520, the fixing member 510 is fixedly disposed in the mounting groove 310, the fixing member 510 is provided with an adjusting groove 511 coaxial with the mounting groove 310, the first elastic connection member 520 and the conductive movable member 400 are disposed in the adjusting groove 511, one end of the first elastic connection member 520 abuts against the fixing member 510, the other end abuts against the conductive movable member 400, and the first elastic connection member 520 can push the conductive movable member 400 toward the axis of the shaft assembly 100.

Although the flexibly connected conductive movable element 400 can reduce the degree of wear as much as possible, wear is unavoidable. The fixing member 510, the first elastic connection member 520 and the conductive movable member 400 may constitute a combined fitting, facilitating the overall replacement. When the cutter is mounted, other parts of the cutter are firstly contacted with the conductive movable piece 400, and the conductive movable piece 400 is in non-rigid connection, so that when the cutter presses the conductive movable piece 400, the conductive movable piece 400 can transmit force to the first elastic connecting piece 520 so as to compress the first elastic connecting piece 520 to be far away from the cutter. When the cutter is mounted at a designated position, the conductive part of the cutter corresponds to the conductive movable member 400, and the first elastic connection member 520 can release elastic potential energy stored in compression, so that the conductive movable member 400 is pushed to the cutter to abut against the conductive part of the cutter, and reliable contact electrical connection is maintained.

The first elastic connection member 520 may be a silicone pad having a large deformation amount, or may be a spring, and preferably a spring is used as the first elastic connection member 520.

The stopper 300 may be insulating, and the fixing member 510 may be conductive or insulating. When the first elastic connection member 520 uses a metal spring, the spring is a conductor, so the wireless sensing module 200 can be directly electrically connected with the metal spring, and indirectly connected with the conductive movable member 400 through the contact of the metal spring.

Referring to fig. 3 and 4, it can be understood that the mounting groove 310 is provided therein with a first step surface 311, the fixing member 510 is inserted into the mounting groove 310, and the fixing member 510 abuts against the first step surface 311.

The fixing member 510 and the mounting groove 310 may be in transition fit, and by controlling the diameters of the fixing member 510 and the mounting groove 310, a suitable friction resistance can be obtained between the fixing member 510 and the mounting groove 310, so that the fixing member 510 is firmly inserted into the mounting groove 310, and the mounting position (insertion depth) of the fixing member 510 is determined by abutting the fixing member 510 with the first step surface 311.

Another way of assembling the fixing member 510 and the mounting groove 310 is by screw-fitting the fixing member 510 to the mounting groove 310.

The fixing member 510 may be rotated to thereby change the position of the fixing member 510 between the mounting grooves 310.

Referring to fig. 3, it can be understood that the conductive movable member 400 is a metal sphere 410, the metal sphere 410 is disposed in the adjustment groove 511, one end of the adjustment groove 511 near the axis of the shaft assembly 100 is provided with a variable diameter portion, and the inner diameter of the variable diameter portion is smaller than the diameter of the metal sphere 410.

The inner diameter of the variable diameter portion is smaller than the diameter of the metal sphere 410 for preventing the metal sphere 410 from completely coming out of the adjustment groove 511. The spherical metal sphere 410 can partially protrude outside the diameter-changing portion, that is, can be in contact with the conductive member of the tool.

Referring to fig. 5, it can be appreciated that the adjusting assembly 500 includes a set screw 530 and a second elastic connection member 540, the second elastic connection member 540 is disposed in the mounting groove 310, one end of the second elastic connection member 540 is provided with the set screw 530, the other end is provided with the conductive movable member 400, and the conductive movable member 400 is located at one end of the mounting groove 310 near the axis of the shaft assembly 100, and the set screw 530 is in threaded engagement with the mounting groove 310.

The conductive movable member 400 may also be directly disposed in the mounting groove 310, and connected thereto by the second elastic connection member 540 to achieve flexible connection. The setting screw 530 may be rotated to adjust the position of the setting screw 530 in the mounting groove 310, where the setting screw 530 may pre-tighten the second elastic connection 540, and the acting force of the second elastic connection 540 on the conductive movable member 400 may be adjusted according to the actual requirement.

Referring to fig. 5, it can be understood that the second step surface 312 is provided in the mounting groove 310, the conductive movable member 400 includes a column 420 and a contact 430, the contact 430 is connected to the column 420, and the contact 430 extends out of the mounting groove 310, the column 420 is provided with a third step surface, and the third step surface can abut against the second step surface 312.

The post 420 facilitates electrical connection with the wireless sensing module 200 and the contact 430 facilitates contact with the conductive member of the tool. The third step surface provided on the post 420 abuts against the second step surface 312, so as to prevent the second elastic connection member 540 from pushing the conductive movable member 400 out of the mounting groove 310.

The second elastic connection 540 may be made of the same elastic material as the first elastic connection 520, and preferably, the second elastic connection 540 also uses a spring.

Referring to fig. 7, it may be understood that the shaft assembly 100 includes a shaft core 110, an outer sleeve 120 and a supporting assembly 130, wherein one end of the shaft core 110 is used for installing a tool, and a limiting block 300 is disposed at the end, the supporting assembly 130 is sleeved on the shaft core 110, the outer sleeve 120 is sleeved on the supporting assembly 130, an assembly space is defined between the outer sleeve 120 and the shaft core 110, the shaft core 110 and the outer sleeve 120 can rotate relatively, and the wireless sensing module 200 is disposed in the assembly space.

The support assembly 130 is used for supporting the shaft core 110 and the outer sleeve 120, wherein the outer sleeve 120 is relatively stationary, and the shaft core 110 can rotate around the outer sleeve 120 to drive the cutter to rotate. The external power source penetrates the outer sleeve 120 through the lead wire, and performs non-contact electric energy transmission through the wireless sensing module 200, and is finally connected from the shaft core 110 to the conductive movable part 400 on the limiting block 300, so as to be communicated with the conductive part of the cutter. The support assembly 130 may, and preferably is, a bearing member that is sleeved on the shaft core 110, and then the outer housing 120 is sleeved on the bearing member, so that the shaft core 110 can rotate relative to the outer housing 120.

It can be understood that the wireless sensing module 200 includes a power supply assembly 210 and a power receiving assembly 220, the power supply assembly 210 is connected to the outer housing 120, the power receiving assembly 220 is connected to the shaft core 110, the power receiving assembly 220 is disposed opposite to the power supply assembly 210, and the power receiving assembly 220 is electrically connected to the conductive movable member 400.

The power supply assembly 210 is connected with the outer sleeve 120 and keeps relatively static together, and an external power supply penetrates into the outer sleeve 120 through a wire to be connected with the power supply assembly 210; the power receiving component 220 is connected with the shaft core 110, rotates together with the shaft core 110, and the power receiving component 220 penetrates from the shaft core 110 to be connected with the conductive movable piece 400 through a wire. The power receiving component 220 is disposed opposite to the power supplying component 210, so that contactless power transmission can be performed.

Further, the power supply assembly 210 includes a power supply coil and a power supply core, and the power receiving assembly 220 includes a power receiving coil and an electromagnetic core. The power supply unit 210 and the power receiving unit 220 may be disposed at a relative interval in the axial direction or may be disposed at a relative interval in the radial direction. In the embodiment of the present application, it is preferable that the power receiving assemblies 220 are disposed at opposite intervals in the radial direction, for example, in a cross section in the radial direction, the power receiving assemblies 210 are disposed at an inner ring at the shaft core 110, and the power supplying assemblies 210 are disposed at an outer ring at the outer sleeve 120.

Referring to fig. 6, it can be understood that the mounting groove 310 is open at one end near the axis of the shaft assembly 100 and closed at the other end, the adjusting assembly 500 includes a third elastic connection member 550, the third elastic connection member 550 is disposed in the mounting groove 310, one end of the third elastic connection member 550 abuts against the closed end of the mounting groove 310, and the other end is provided with the conductive movable member 400.

The conductive movable member 400 may be disposed in the mounting groove 310 and connected thereto by the third elastic connection member 550 to achieve a flexible connection. The third elastic connection 550 may be made of the same elastic material as the first elastic connection 520, and preferably, the third elastic connection 550 also uses a spring.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. The utility model provides a wireless response module built-in direct-connected supersound main shaft unit which characterized in that includes:

-a shaft assembly (100), one end of the shaft assembly (100) being for mounting a tool;

A wireless sensing module (200), the wireless sensing module (200) being disposed on the shaft assembly (100);

The limiting blocks (300) are arranged at one end of the shaft assembly (100) for installing a cutter and are distributed along the circumferential direction of the shaft assembly (100), the limiting blocks (300) are provided with mounting grooves (310), the mounting grooves (310) extend towards the axis of the shaft assembly (100) to be close, and each mounting groove (310) is internally provided with a conductive movable piece (400) and an adjusting assembly (500);

Wherein, the conductive movable piece (400) is connected with the wireless induction module (200) through a wire;

The adjusting component (500) is in transmission connection with the conductive movable piece (400), and the adjusting component (500) can drive the conductive movable piece (400) to move in the mounting groove (310).

2. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 1, wherein: the adjusting assembly (500) comprises a fixing piece (510) and a first elastic connecting piece (520), the fixing piece (510) is fixedly arranged in the mounting groove (310), the fixing piece (510) is provided with an adjusting groove (511) coaxial with the mounting groove (310), the first elastic connecting piece (520) and the conductive movable piece (400) are arranged in the adjusting groove (511), one end of the first elastic connecting piece (520) is abutted to the fixing piece (510), the other end of the first elastic connecting piece is abutted to the conductive movable piece (400), and the first elastic connecting piece (520) can push the conductive movable piece (400) to be close to the axis of the shaft assembly (100).

3. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 2, wherein: the mounting groove (310) is internally provided with a first step surface (311), the fixing piece (510) is inserted into the mounting groove (310), and the fixing piece (510) is abutted with the first step surface (311).

4. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 2, wherein: the fixing piece (510) is in threaded fit connection with the mounting groove (310).

5. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 2, wherein: the conductive movable piece (400) is a metal sphere (410), the metal sphere (410) is arranged in the adjusting groove (511), one end, close to the axis of the shaft assembly (100), of the adjusting groove (511) is provided with a reducing portion, and the inner diameter of the reducing portion is smaller than the diameter of the metal sphere (410).

6. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 2, wherein: the first elastic connection (520) is a spring.

7. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 1, wherein: the adjusting component (500) comprises a set screw (530) and a second elastic connecting piece (540), the second elastic connecting piece (540) is arranged in the mounting groove (310), one end of the second elastic connecting piece (540) is provided with the set screw (530), the other end of the second elastic connecting piece is provided with the conductive movable piece (400), the conductive movable piece (400) is located at one end, close to the axis of the shaft component (100), of the mounting groove (310), and the set screw (530) is connected with the mounting groove (310) in a threaded fit mode.

8. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 7, wherein: be equipped with second step face (312) in mounting groove (310), electrically conductive movable part (400) include cylinder (420) and contact (430), contact (430) connect in cylinder (420), just contact (430) stretch out to the outside of mounting groove (310), cylinder (420) are equipped with the third step face, the third step face can the butt second step face (312).

9. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 7, wherein: the shaft assembly (100) comprises a shaft core (110), an outer sleeve body (120) and a supporting assembly (130), one end of the shaft core (110) is used for installing a cutter, the limiting block (300) is arranged at the end, the supporting assembly (130) is sleeved on the shaft core (110), the outer sleeve body (120) is sleeved on the supporting assembly (130), an assembling space is enclosed between the outer sleeve body (120) and the shaft core (110), the shaft core (110) and the outer sleeve body (120) can rotate relatively, and the wireless sensing module (200) is arranged in the assembling space.

10. The wireless induction module built-in direct-connection ultrasonic spindle unit according to claim 1, wherein: the mounting groove (310) is close to one end opening of the axis of the shaft assembly (100), the other end is closed, the adjusting assembly (500) comprises a third elastic connecting piece (550), the third elastic connecting piece (550) is arranged in the mounting groove (310), one end of the third elastic connecting piece (550) is abutted to the closed end of the mounting groove (310), and the other end of the third elastic connecting piece is provided with the conductive movable piece (400).