CN215964604U - Ultrasonic vibrator assembly and ultrasonic processing equipment - Google Patents

Abstract

The utility model discloses an ultrasonic vibrator assembly and ultrasonic processing equipment. According to the ultrasonic vibrator assembly in the embodiment of the utility model, the first vibration reduction grooves are arranged on one side or two sides of the mounting part, and the first vibration reduction grooves block partial propagation paths of axial vibration on the amplitude transformer on the mounting part, so that the energy of the vibration reaching the external structure connected to the far side of the first vibration reduction grooves relative to the amplitude transformer is reduced, the influence of the axial vibration of the amplitude transformer on the external structure is effectively reduced, and even if the contact position of the mounting part and the amplitude transformer has large vibration, the connection position of the external structure and the mounting part can be ensured not to generate axial vibration or the amplitude of the axial vibration is small. Therefore, the mounting member in the ultrasonic vibrator assembly in the embodiment of the present invention is not disposed at the node position, so that the axial vibration on the horn does not affect the external structure, and the radial vibration at the node position on the horn can be prevented from affecting the ultrasonic vibrator assembly.

Description

Ultrasonic vibrator assembly and ultrasonic processing equipment

Technical Field

The utility model relates to the field of application of ultrasonic vibrator assemblies, in particular to an ultrasonic vibrator assembly and ultrasonic processing equipment.

Background

The ultrasonic transducer assembly is a structure capable of converting a high-frequency electric signal into high-frequency mechanical vibration, and is an important component of an ultrasonic machining apparatus in precision machining. The ultrasonic vibrator component is connected with a knife handle of a cutter in the ultrasonic machining equipment in the machining process, so that the ultrasonic vibrator component can drive the knife handle to rotate at a high speed. High-frequency axial vibration generated by the ultrasonic vibrator component cannot be transmitted to the tool shank, otherwise, the axial vibration of the tool shank is transmitted to the spindle rotor, and the spindle rotor generates axial vibration to quickly wear a spindle bearing, so that the spindle is damaged.

At present, the tool shank is usually fixed at a resonance frequency, and the axial vibration amplitude on the amplitude transformer of the ultrasonic vibrator assembly is at a zero position (node position), so that the axial vibration is not transmitted to the spindle rotor. However, during the machining process, due to the influence of load change, tool shank temperature and the like, the resonant frequency of the ultrasonic vibrator assembly is easy to drift, so that the position of a node is changed, axial vibration is still transmitted from the amplitude transformer to the tool shank, and the main shaft is damaged. In addition, although the axial vibration at the node position is minimum, the radial vibration at the node position is maximum, and the fixed tool shank cannot vibrate radially, so that the kinetic energy generated by the radial vibration is converted into heat energy, the ultrasonic vibrator assembly generates heat, and the resonant frequency of the ultrasonic vibrator assembly changes.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. To this end, the present invention proposes an ultrasonic vibrator assembly capable of reducing the influence of vibration of a horn on an external structure connected to the ultrasonic vibrator assembly.

The utility model also provides ultrasonic processing equipment with the ultrasonic vibrator assembly.

An ultrasonic vibrator assembly according to an embodiment of a first aspect of the present invention includes:

a piezoelectric element for generating vibration;

the vibration damping device comprises an amplitude transformer, wherein one end of the amplitude transformer is connected with a piezoelectric element and is used for changing the amplitude of vibration generated by the piezoelectric element, an installation part is sleeved on the amplitude transformer, a plurality of first vibration damping grooves are formed in one side of the installation part along the axial direction of the amplitude transformer, and the first vibration damping grooves are formed in the near side of a connecting structure relative to the axis of the amplitude transformer; or a plurality of first vibration reduction grooves are formed in two sides of the mounting piece in the axial direction of the amplitude transformer, a connecting structure used for being connected with an external structure is further arranged on the mounting piece, and the connecting structure is located on the far side of the first vibration reduction grooves relative to the axis of the amplitude transformer.

The ultrasonic vibrator assembly in the embodiment of the utility model has at least the following beneficial effects: through set up a plurality of first damping grooves on one side or both sides at the installed part, first damping groove has blocked the partial propagation path of axial vibration on the width of cloth pole on the installed part, makes the energy of the vibration of the outer structure who reaches the distal side of connecting in first damping groove relative width of cloth pole reduce to effectively reduce the influence of width of cloth pole axial vibration to outer structure, even the installed part has great vibration with width of cloth pole contact position, also can guarantee that outer structure does not take place axial vibration or axial vibration's amplitude is very little with the hookup location of installed part. Therefore, the mounting member in the ultrasonic vibrator assembly in the embodiment of the present invention is not disposed at the node position, so that the axial vibration on the horn does not affect the external structure, and the radial vibration at the node position on the horn can be prevented from affecting the ultrasonic vibrator assembly.

According to some embodiments of the utility model, the first damping groove is an annular groove, and the center of the first damping groove is located on the axis of the horn.

According to some embodiments of the utility model, the connecting structure comprises a plurality of connecting holes located distally of the first damping groove with respect to the axis of the horn.

According to some embodiments of the utility model, the plurality of attachment holes are symmetrically distributed on the mounting member with respect to the axis of the horn.

According to some embodiments of the utility model, the mounting member is provided with the first vibration reduction grooves on both sides in the axial direction of the horn, and the first vibration reduction grooves on both sides of the mounting member are arranged in a staggered manner.

According to some embodiments of the present invention, the ultrasonic vibrator assembly further comprises a piezoelectric assembly limiting member, the piezoelectric assembly limiting member is sleeved on the horn, the piezoelectric assembly limiting member is located at one end of the horn connected to the piezoelectric element, and the piezoelectric assembly limiting member is connected to the piezoelectric element.

According to some embodiments of the present invention, the piezoelectric assembly limiting member is provided with a second vibration reduction groove on one side in the axial direction of the horn, or both sides in the axial direction of the horn.

An ultrasonic machining apparatus according to an embodiment of a second aspect of the present invention includes:

the ultrasonic cutter comprises an ultrasonic vibrator assembly, a cutter handle and a cutter, wherein the ultrasonic vibrator assembly, the cutter handle and the cutter are arranged in the first aspect of the utility model, the cutter handle is connected with the mounting piece and sleeved outside the ultrasonic vibrator assembly, the cutter is positioned at the other end, connected with the piezoelectric element, of the ultrasonic vibrator assembly, and the cutter is connected with the amplitude transformer;

the equipment body comprises a main shaft, and the main shaft is connected with the tool shank.

According to the ultrasonic machining apparatus in some embodiments of the present invention, the ultrasonic oscillator assembly further includes a piezoelectric assembly limiting member, the piezoelectric assembly limiting member is sleeved on the amplitude transformer, the piezoelectric assembly limiting member is located at one end of the amplitude transformer connected to the piezoelectric element, the tool shank is provided with a plurality of clamping holes at positions corresponding to the piezoelectric assembly limiting member, clamping members penetrate through the clamping holes, the clamping members abut against the piezoelectric assembly limiting member, and the plurality of clamping members are used for fixing the piezoelectric assembly limiting member.

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 following figures and examples, in which:

FIG. 1 is a schematic view of an ultrasonic transducer assembly in an embodiment of the utility model;

FIG. 2 is an exploded view of the ultrasonic vibrator assembly of the embodiment of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of an ultrasonic tool according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view A-A of the ultrasonic tool of the embodiment of FIG. 3 of the present invention.

Reference numerals:

the vibration-damping device comprises a piezoelectric element 100, an amplitude transformer 200, an amplitude-changing part 210, a mounting part 300, a first vibration-damping groove 310, a connecting hole 320, a piezoelectric component limiting part 400, a piezoelectric component fixing part 410, a second vibration-damping groove 420, a clamping hole 430, a clamping part 440, a tool shank 510, a tool 520 and a spindle 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, 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 illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device 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 invention.

In the description of the present invention, several means are one or more, and plural means are two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood 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 invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 and 2, in one embodiment of the present invention, an ultrasonic vibrator assembly is provided, including a piezoelectric element 100, a horn 200, and a mounting member 300. Wherein the piezoelectric element 100 is used to generate vibration; one end of the horn 200 is connected to the piezoelectric element 100, and the horn 200 changes the amplitude of the vibration generated by the piezoelectric element 100. The mounting member 300 is sleeved on the horn, and a plurality of first vibration reduction grooves 310 are formed in one side of the mounting member 300 in the axial direction of the horn 200, or a plurality of first vibration reduction grooves 310 are formed in both sides of the mounting member 300 in the axial direction of the horn 200. Mounting member 300 is also provided with attachment structure for attachment to an external structure, which is located on mounting member 300 distal to first damping groove 310 relative to the axis of horn 200.

The piezoelectric reverse effect of the piezoelectric element 100 can convert a high-frequency electric signal into high-frequency mechanical vibration. The horn 200 is a structure for changing the amplitude of the vibration generated by the piezoelectric element 100. The structure and operation principle of the piezoelectric element 100 and the horn 200 are well known in the art, and are not described in detail in this application.

In some embodiments of the present invention, the horn 200 includes a horn section 210, the horn section 210 is located between the piezoelectric element 100 and the mounting member 300, one end of the horn section 210 is connected to the piezoelectric element 100, and the area of the cross section of the horn section 210 gradually decreases from the end connected to the piezoelectric element 100 to the other end in the axial direction of the horn 200, so that the vibration generated by the piezoelectric element 100 passes through the horn section 210, and the amplitude increases to reach the amplitude required for machining or other operations. The amplitude changing portion 210 may be formed in a circular truncated cone shape.

The node position of the horn 200 refers to a position where the amplitude of the vibration generated by the piezoelectric element 100 is zero on the horn 200 during the propagation of the vibration generated by the piezoelectric element 100 on the horn 200 at the resonant frequency of the ultrasonic vibrator assembly. The nodal position of horn 200 may be detected by calculation or related instrumentation.

The mount 300 is a structure for connecting the ultrasonic vibrator assembly with an external structure. In the ultrasonic machining apparatus, the external structure connected to the mounting member 300 is a shank of the ultrasonic tool. Mounting member 300 can be integrally formed with horn 200; the mounting member 300 may also be secured to the horn 200 by a connector, such as a threaded hole in the side edge of the mounting member 300, into which a threaded connector, such as a screw or bolt, is received to urge the mounting member 300 against the horn 200.

The mounting member 300 may be provided in a disc structure to facilitate processing and assembly. The mounting member 300 may be coupled to the external structure by a threaded connection. For example, referring to FIG. 1, in some embodiments of the present invention, the attachment structure of the mount 300 includes a plurality of attachment holes 320, the attachment holes 320 being located distal of the first damping slot 310 relative to the axis of the horn 200. The connection hole 320 is a through-hole or threaded hole structure for the connection of the ultrasonic vibrator assembly with an external structure. The outer structure may be coupled to the coupling hole 320 by a coupling member such as a screw, a bolt, etc., so as to be fixedly coupled to the ultrasonic vibrator assembly. The mode of arranging the connecting hole 320 is simple and convenient to process and simple to connect. The connection holes 320 may penetrate both sides of the mounting member 300, or may be provided on side edges of the mounting member 300. A threaded sleeve or other connecting structure may also be provided on the mounting member 300 for connection to an external structure.

During operation of the ultrasonic vibrator assembly, axial vibration on the horn 200 is transmitted to the mounting member 300, and the first vibration reduction groove 310 is recessed from one side surface of the mounting member 300 to the other side, so that when the axial vibration on the horn 200 reaches the first vibration reduction groove 310, the propagation path of the axial vibration on the horn 200 reaching the first vibration reduction groove 310 is reduced, and thus part of the axial vibration reaching the first vibration reduction groove 310 is changed in path and is propagated in other directions, and during the change of the propagation path, the energy of the axial vibration is attenuated, and the loss of the axial vibration energy is increased along with the increase of the propagation distance. The outer structure is connected to the distal side of the first damping grooves 310 with respect to the horn 200, so that the energy of the axial vibration reaching the connection position of the mounting member 300 to the outer structure is reduced after the axial vibration of the horn 200 passes through the blocking effect of the first damping grooves 310, and the energy of the axial vibration transmitted to the outer structure is also reduced, thereby reducing the influence of the axial vibration of the horn 200 on the outer structure. The number of the first damping grooves 310 may be one or more. It is understood that the first damping groove 310 may be provided as a square groove, an annular groove, or other shaped blind groove. The greater the number of the first damping grooves 310 is provided, the better the damping effect for the external structure is.

After the external structure and the mounting member 300 are fixed by a connecting member such as a screw thread or a screw, the external structure may not vibrate axially. The ultrasonic vibrator module in the embodiment of the present invention is suitable for ultrasonic application apparatuses such as ultrasonic processing apparatuses for machining, ultrasonic surgical apparatuses for medical use, and the like.

The node position of the horn 200 refers to a position where the amplitude of the vibration generated by the piezoelectric element 100 is zero on the horn 200 during the propagation of the vibration generated by the piezoelectric element 100 on the horn 200 at the resonant frequency of the ultrasonic vibrator assembly. The nodal position of horn 200 may be detected by calculation or related instrumentation. Therefore, the position where the horn 200 is connected to the external structure is usually set at the node position to avoid the influence of the axial vibration on the horn 200 on the external structure, but in the actual operation of the ultrasonic vibrator assembly, the resonant frequency of the ultrasonic vibrator assembly is likely to shift due to the influence of the load change, the external structure temperature, and the like, so that the node position is changed, and the axial vibration on the horn 200 is still transmitted to the external structure connected to the ultrasonic vibrator assembly. In addition, although the axial vibration at the node position is minimum, the radial vibration at the node position is maximum, and since the external structure fixedly connected with the mounting member 300 cannot generate the radial vibration, the kinetic energy generated by the radial vibration on the horn 200 is converted into heat energy, so that the ultrasonic vibrator assembly generates heat, the resonant frequency of the ultrasonic vibrator assembly is changed, and the node position is shifted. Therefore, the axial vibration of the horn 200 still affects the outer structure, causing the outer structure to be worn or damaged.

The ultrasonic vibrator assembly of the embodiment of the present invention partially blocks the propagation path of the axial vibration of the horn 200 on the mounting member 300 by providing the first vibration-damping grooves 310 on the mounting member 300, so that the energy of the axial vibration reaching the external structure connected to the distal side of the first vibration-damping grooves 310 with respect to the horn 200 is reduced. The effect of blocking the axial vibration propagation of the horn 200 by the first vibration-damping grooves 310 is effectively reduced, and even if the contact position of the mounting member 300 and the horn 200 has large vibration, the connection position of the external structure and the mounting member 300 can be ensured not to generate axial vibration or the amplitude of the axial vibration is small. Therefore, the mounting member 300 in the ultrasonic vibrator assembly according to the embodiment of the present invention is not disposed at the node position, so that the axial vibration of the horn 200 does not affect the external structure, and the radial vibration of the node position on the horn 200 can be prevented from affecting the ultrasonic vibrator assembly.

Referring to fig. 1, in some embodiments of the present invention, the connection holes 320 are symmetrically distributed on the mounting member 300 with respect to the axis of the horn 200, so that after the external structure is connected to the ultrasonic vibrator assembly through the connection holes 320, the stress distribution on the external structure and the mounting member 300 is more uniform, and the connection between the mounting member 300 and the external structure is more stable.

Referring to fig. 1, in some embodiments of the present invention, the first damping groove 310 may be provided as a square groove, an annular groove, or a blind groove of other shapes. It is understood that the first vibration-damping grooves 310 are formed on both sides of the mounting member 300 in the axial direction of the horn 200, and the first vibration-damping grooves 310 are formed on only one side of the mounting member 300 in the axial direction of the horn 200, which is more effective in blocking the propagation of vibration on the mounting member 300.

In some embodiments of the present invention, the mounting member 300 is provided with the first vibration damping grooves 310 on both sides in the axial direction of the horn 200, and the first vibration damping grooves 310 on both sides of the mounting member 300 are staggered, so as to avoid that the thickness of the mounting member 300 at the same position is too thin due to the opening of the first vibration damping grooves 310 at the same position of the mounting member 300, and ensure the strength and rigidity of the mounting member 300.

Referring to fig. 1 and 2, in some embodiments of the present invention, first damping groove 310 is an annular groove, and the center of first damping groove 310 is located on the axis of horn 200. The horn 200 is generally a cylindrical structure, and axial vibrations on the horn 200 propagate in the circumferential direction of the horn 200 toward the mount 300. The circular first damping groove 310 is concentrically disposed with the section of the horn 200 at the position connected to the mounting member 300, and can partially block the propagation path of the axial vibration at the position of the first damping groove 310 in the circumferential direction, thereby having a better damping effect.

Referring to fig. 1 and 2, in some embodiments of the present invention, the ultrasonic transducer assembly further includes a piezoelectric assembly limiting member 400 and a piezoelectric assembly fixing member 410, the piezoelectric assembly limiting member 400 is sleeved on the horn 200, and the piezoelectric assembly limiting member 400 is located at one end of the horn 200 connected to the piezoelectric element 100. The end of the horn 200 connected to the piezoelectric element 100 is the node position of the horn 200, and at the resonance frequency, the axial vibration of the horn 200 is the smallest and the radial vibration is the largest at this position. The piezoelectric element stop 400 is disposed at this location with minimal effect from axial vibration of the horn 200. In addition, the piezoelectric assembly limiting member 400 can increase the rigidity of the ultrasonic vibrator assembly to adapt to the radial vibration of the horn 200, thereby avoiding the radial deformation caused by too low structural rigidity of the mounting member 300 provided with the first vibration reduction grooves 310. The piezoelectric element retainer 400 may be configured as a disk structure for easy processing and assembly.

Referring to fig. 1 and 2, in some embodiments of the present invention, the ultrasonic transducer assembly further includes a piezoelectric assembly fixing member 410, a fixing through hole is formed on the piezoelectric element 100, a threaded hole is formed on the piezoelectric assembly limiting member 400, the piezoelectric assembly fixing member 410 is inserted into the fixing through hole and the threaded hole and is in threaded connection with the piezoelectric assembly limiting member 400, and the piezoelectric assembly fixing member 410 and the piezoelectric assembly limiting member 400 respectively abut against two ends of the piezoelectric element 100. The piezoelectric element fixing member 410 may be various screw, bolt with nut, or other threaded connection members. The piezoelectric element fixing member 410 and the piezoelectric element limiting member 400 respectively abut against two ends of the piezoelectric element 100, so that the two ends of the piezoelectric element 100 are respectively limited by the piezoelectric element fixing member 410 and the piezoelectric element limiting member 400, and the piezoelectric element 100 is stably fixed on one side of the horn 200. In addition, the piezoelectric element fixing member 410 is in threaded connection with the piezoelectric element limiting member 400, so that the piezoelectric element fixing member 410 and the piezoelectric element limiting member 400 can be disassembled in a threaded manner, and the ultrasonic oscillator assembly can be conveniently maintained and replaced in a later period.

Referring to fig. 1 and 2, in some embodiments of the present invention, the piezoelectric assembly limiter 400 is provided with second vibration reduction grooves 420 on both sides in the axial direction of the horn 200. The second vibration-damping groove 420 is recessed from one side surface of the piezoelectric assembly limiting member 400 to the other side, so that the second vibration-damping groove 420 can partially block a propagation path of radial vibration of the horn 200 on the piezoelectric assembly limiting member 400, and the amplitude of the radial vibration on the piezoelectric assembly limiting member 400 is reduced, so as to reduce the influence of the radial vibration of the horn 200 on the piezoelectric assembly limiting member 400.

The second damping groove 420 may be provided as an annular groove, and a center of the second damping groove 420 may be disposed on the axis of the horn 200, so that the second damping groove 420 can partially block a propagation path of radial vibration on the piezoelectric module stopper 400 in a circumferential direction, thereby having a better damping effect.

Referring to fig. 3 and 4, an ultrasonic machining apparatus including an ultrasonic tool 520 and an apparatus body is also provided in an embodiment of the present invention. The ultrasonic blade 520 includes the ultrasonic transducer assembly according to the above embodiment of the present invention, a blade holder 510, and a blade 520, the blade holder 510 is connected to the mounting member 300 and is sleeved outside the ultrasonic transducer assembly, the blade 520 is located at the other end of the ultrasonic transducer assembly connected to the piezoelectric element 100, and the blade 520 is connected to the horn 200. The apparatus body includes a main shaft 600, and the main shaft 600 is connected with the tool holder 510.

During machining, the prior art typically fixes the shank 510 to the nodal position on the horn 200 of the ultrasonic vibrator assembly so that axial vibrations are not transmitted into the rotor of the spindle 600. However, during the machining process, the resonance frequency of the ultrasonic transducer assembly is likely to drift due to the influence of the change in load, the temperature of the tool holder 510, and the like, and the position of the node is changed, so that the vibration is transmitted from the horn 200 to the tool holder 510, and the main shaft 600 is damaged.

In the ultrasonic machining apparatus according to the embodiment of the present invention, the propagation path of the axial vibration of the horn 200 transmitted to the mounting member 300 is blocked by the first vibration-damping groove 310, so that the energy of the axial vibration reaching the tool shank 510 connected to the first vibration-damping groove 310 on the far side of the horn 200 is reduced, and after the tool shank 510 is fixed to the mounting member 300, the tool shank 510 does not generate the axial vibration or the amplitude of the axial vibration reaching the tool shank 510 is small, thereby effectively preventing the main shaft 600 from being damaged. The tool shank 510 of the ultrasonic processing device in the embodiment of the present invention may be fixed to a non-node position on the horn 200, and axial vibration of the tool shank 510 may not occur, and radial vibration of the non-node position relative to the node position is small, so that an influence of the radial vibration on the horn 200 on the ultrasonic vibrator assembly may be reduced.

Referring to fig. 3 and 4, in some embodiments of the present invention, the ultrasonic transducer assembly in the ultrasonic processing apparatus in an embodiment of the present invention further includes a piezoelectric assembly limiting member 400, the piezoelectric assembly limiting member 400 is sleeved on the horn 200, the piezoelectric assembly limiting member 400 is located at one end of the horn 200 connected to the piezoelectric element 100, the tool holder 510 is provided with a plurality of clamping holes 430 at positions corresponding to the piezoelectric assembly limiting member 400, clamping members 440 are inserted into the clamping holes 430, the clamping members 440 abut against the piezoelectric assembly limiting member 400, and the plurality of clamping members 440 are used to fix the piezoelectric assembly limiting member 400.

The clamping members 440 may support the piezoelectric element limiting member 400 from multiple directions, so that the piezoelectric element limiting member 400 can be fixed in the tool holder 510. For example: referring to fig. 4, the upper and lower sides of the piezoelectric element limiting member 400 are respectively provided with two clamping members 440, and the two clamping members 440 respectively abut against the piezoelectric element limiting member 400 at the upper and lower sides of the piezoelectric element limiting member 400, so that the piezoelectric element limiting member 400 is fixed.

Since the first vibration damping groove 310 is formed in the mounting member 300, the structural strength and rigidity of the mounting member 300 are affected, and the ultrasonic vibrator assembly may be radially moved or radially deformed during vibration. After being clamped, the piezoelectric assembly limiting part 400 is restrained, so that the rigidity of the ultrasonic vibrator assembly is improved, and the ultrasonic vibrator assembly can resist radial movement or radial deformation.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims (9)

1. An ultrasonic vibrator assembly, comprising:

a piezoelectric element for generating vibration;

the vibration damping device comprises an amplitude transformer, wherein one end of the amplitude transformer is connected with a piezoelectric element and is used for changing the vibration amplitude generated by the piezoelectric element, an installation part is sleeved on the amplitude transformer, one side of the installation part along the axial direction of the amplitude transformer is provided with a plurality of first vibration damping grooves, the installation part is also provided with a connecting structure used for being connected with an external structure, and the first vibration damping grooves are arranged on the near side of the connecting structure relative to the axial line of the amplitude transformer; or a plurality of first vibration reduction grooves are formed in two sides of the mounting piece in the axial direction of the amplitude transformer, a connecting structure used for being connected with an external structure is further arranged on the mounting piece, and the connecting structure is located on the far side of the first vibration reduction grooves relative to the axis of the amplitude transformer.

2. The ultrasonic vibrator assembly of claim 1, wherein the first vibration-damping groove is an annular groove, and the center of the first vibration-damping groove is located on the axis of the horn.

3. The ultrasonic horn assembly of claim 1 wherein the attachment structure comprises a plurality of attachment holes located distally of the first vibration dampening slots relative to the axis of the horn.

4. The ultrasonic transducer assembly of claim 3, wherein a plurality of the attachment holes are symmetrically distributed on the mounting member with respect to an axis of the horn.

5. The ultrasonic vibrator assembly according to claim 1, wherein the mount is provided with the first vibration damping grooves on both sides in an axial direction of the horn, and the first vibration damping grooves on both sides of the mount are staggered.

6. The ultrasonic vibrator assembly according to any one of claims 1 to 5, further comprising a piezoelectric assembly stopper, the piezoelectric assembly stopper being fitted to the horn, the piezoelectric assembly stopper being located at an end of the horn to which the piezoelectric element is connected, the piezoelectric assembly stopper being connected to the piezoelectric element.

7. The ultrasonic vibrator assembly according to claim 6, wherein the piezoelectric assembly stopper is provided with a second vibration damping groove on one side in the axial direction of the horn, or both sides in the axial direction of the horn.

8. Ultrasonic machining apparatus, characterized by comprising:

an ultrasonic tool, comprising the ultrasonic vibrator assembly according to any one of claims 1 to 7, a tool shank and a tool, wherein the tool shank is connected with the mounting member and sleeved outside the ultrasonic vibrator assembly, the tool is positioned at the other end of the ultrasonic vibrator assembly connected with the piezoelectric element, and the tool is connected with the amplitude transformer;

the equipment body comprises a main shaft, and the main shaft is connected with the tool shank.

9. Ultrasonic machining apparatus, characterized by comprising:

the ultrasonic cutter comprises the ultrasonic vibrator assembly as claimed in claim 6 or 7, a cutter handle and a cutter, wherein the cutter handle is connected with the mounting piece and sleeved outside the ultrasonic vibrator assembly, the cutter is positioned at the other end of the ultrasonic vibrator assembly connected with the piezoelectric element, and the cutter is connected with the amplitude transformer;

the handle is provided with a plurality of clamping holes at the corresponding positions of the piezoelectric component limiting parts, clamping pieces penetrate through the clamping holes, the clamping pieces abut against the piezoelectric component limiting parts, and the clamping pieces are used for fixing the piezoelectric component limiting parts.

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