CN118269178A - Ultrasonic cutter - Google Patents

Abstract

The application discloses an ultrasonic cutter which comprises a cutter handle main body, an amplitude transformer and a vibration reduction structure. The handle main body is provided with a matching part. The amplitude transformer comprises an amplitude transformer body and a flange, wherein the flange is arranged on the periphery of the amplitude transformer body, and the amplitude transformer transmits ultrasonic vibration for working along the axial direction of the flange. The vibration reduction structure is used for reducing ultrasonic vibration transmitted by the amplitude transformer to the cutter handle main body, and is provided with at least two of a first vibration reduction groove, a second vibration reduction groove and a vibration reduction gap. The first vibration reduction groove is arranged on the matching part, is recessed along the axial direction of the flange and extends around the circumferential direction of the flange. The second vibration reduction groove is arranged on the flange, is recessed along the axial direction of the flange and extends around the circumference of the flange. The flange is abutted against the matching part, so that a vibration reduction gap is formed between the amplitude transformer and the knife handle main body. The ultrasonic cutter can reduce energy loss of ultrasonic vibration in the transmission process, and is simple in structure and easy to produce and assemble.

Description

Ultrasonic cutter

Technical Field

The application relates to the technical field of ultrasonic application, in particular to an ultrasonic cutter.

Background

The ultrasonic auxiliary processing has excellent performance on a plurality of difficult-to-process materials, and the working principle is as follows: the ultrasonic generator converts power frequency alternating current electric energy into ultrasonic frequency electric oscillation with certain power output, the transducer converts the ultrasonic frequency electric oscillation into ultrasonic mechanical vibration, and a tool fixed at the end part of the amplitude transformer generates ultrasonic vibration through an amplitude expanding rod (amplitude transformer) to act on the processing surface of a workpiece so as to form the workpiece.

An ultrasonic blade is one of the ultrasonic devices, and a horn is one of the key mechanisms in the ultrasonic blade, which transmits ultrasonic vibrations to the tool. In practical application, due to structural design, processing and manufacturing reasons and the like, ultrasonic vibration cannot be completely transmitted to a tool end along the amplitude transformer, and part of ultrasonic vibration is transmitted to the shell of the ultrasonic cutter from the amplitude transformer to the periphery, so that a large amount of ultrasonic vibration energy is lost, and the shell is damaged.

Most of the prior art designs generally have a variety of structures for the portion of the horn that is adapted to be coupled to the housing of the ultrasonic blade to reduce the transmission of ultrasonic vibrations to the housing of the ultrasonic blade, but this also results in an excessively complex horn structure that is difficult to machine and to assemble, with a corresponding increase in production and application costs.

Disclosure of Invention

In view of the above, the application provides an ultrasonic cutter to reduce energy loss of ultrasonic vibration in the transmission process, and the ultrasonic cutter has a simple structure and is easy to produce and assemble.

The application provides an ultrasonic cutter which comprises a cutter handle main body, an amplitude transformer and a vibration reduction structure. The handle main body is provided with a matching part. The amplitude transformer comprises an amplitude transformer body and a flange, wherein the flange is arranged on the periphery of the amplitude transformer body, and the amplitude transformer transmits ultrasonic vibration for working along the axial direction of the flange. The vibration reduction structure is used for reducing ultrasonic vibration transmitted from the amplitude transformer to the cutter handle main body, and is provided with at least two of a first vibration reduction groove, a second vibration reduction groove and a vibration reduction gap. The first vibration reduction groove is arranged on the matching part, is recessed along the axial direction of the flange and extends around the circumference of the flange. The second vibration reduction groove is formed in the flange, is recessed along the axial direction of the flange and extends around the circumference of the flange. The flange is abutted against the matching part, so that the vibration reduction gap is formed between the amplitude transformer and the knife handle main body.

In the embodiment, the ultrasonic cutter is provided with the vibration reduction structure, and the vibration reduction structure is formed between the amplitude transformer and the cutter handle main body by abutting the flange and the matching part, so that the rigidity is weakened, the natural frequency is reduced, and most of vibration energy can be absorbed by the flange when ultrasonic high-frequency vibration passes through the flange, so that the effect of blocking vibration transmission is achieved, and the transmission of ultrasonic vibration from the amplitude transformer to the cutter handle main body can be reduced; and the vibration reduction structure is selectively arranged between the amplitude transformer and the tool handle main body, and the matching part is arranged on the tool handle main body to realize the vibration reduction effect together with the flange, so that the transmission efficiency of ultrasonic vibration to the tool end is improved, the structural design of the amplitude transformer is simplified, the design cost is reduced, and the service life of the ultrasonic cutter is prolonged.

In at least one embodiment, when the vibration damping structure is provided with the vibration damping gap, the flange is capable of blocking one side of the vibration damping gap in the direction of the flange axial direction so that the other side of the vibration damping gap forms an opening, and the opening of the vibration damping gap faces opposite to the notch of the first vibration damping groove and/or opposite to the notch of the second vibration damping groove in the direction of the flange axial direction.

In the above embodiment, in the radial direction of the flange, the vibration damping gap is adjacent to the first vibration damping groove and/or the second vibration damping groove, whether the opening direction of the vibration damping gap is opposite to the notch direction of the first vibration damping groove or the opening direction of the vibration damping gap is opposite to the notch direction of the second vibration damping groove, the flange and the matching part form an approximately S-shaped structure on the axial section of the flange between the amplitude transformer and the tool handle main body, so that the vibration damping structure is more similar to the structure of a spring, and the absorption effect of the vibration damping structure on ultrasonic vibration is improved; if the vibration damping structure is simultaneously provided with the first vibration damping groove, the second vibration damping groove and the vibration damping gap, the S-shaped structure can be further prolonged in a bending mode, and the capability of the vibration damping structure for preventing ultra-deep vibration from being transmitted from the amplitude transformer to the cutter handle main body is further improved.

In at least one embodiment, when the vibration damping structure is not provided with the vibration damping gap, the notch of the first vibration damping groove faces opposite to the notch of the second vibration damping groove in the direction of the flange axial direction.

In the above embodiment, in the radial direction of the flange, the first vibration reduction groove is adjacent to the second vibration reduction groove, and the notch orientation of the first vibration reduction groove is opposite to the notch orientation of the second vibration reduction groove, so that the flange and the matching portion form an approximately "S" structure on the axial section of the flange between the amplitude transformer and the tool shank main body, the vibration reduction structure is more similar to the structure of a spring, and the absorption of the vibration reduction structure to ultrasonic vibration is improved.

In at least one embodiment, the flange includes an abutment portion that abuts against the mating portion at least in a radial direction of the flange.

In the above embodiment, since the flange and the mating portion themselves need to have a certain extension length in the axial direction of the flange, so as to form the first vibration reduction groove and the second vibration reduction groove with the notch facing the axial direction parallel to the flange, and the vibration reduction gap with the opening facing the axial direction parallel to the flange, the flange is abutted to the mating portion in the radial direction of the flange by the abutting portion, and the flange is connected with the mating portion, the vibration reduction structure is easier to form an elastic structure between the amplitude transformer and the handle main body, the structural form of the amplitude transformer and the handle main body is simplified, and the cost is reduced.

In at least one embodiment, a projection of the abutment portion in a radial direction of the flange at least partially coincides with a projection of the first vibration reduction groove in the radial direction of the flange.

In the above embodiment, the first vibration reduction groove is formed in parallel in the radial direction within the axial range of the flange where the abutting portion is located, and the overlapping area of the abutting portion and the first vibration reduction groove is increased as much as possible in the axial direction of the flange, so that the rigidity between the amplitude transformer and the tool handle main body at the vibration reduction structure is weakened, and the absorption of the vibration reduction structure to ultrasonic vibration is improved.

In at least one embodiment, a projection of the abutment portion in a radial direction of the flange at least partially coincides with a projection of the second vibration reduction groove in the radial direction of the flange.

In the above embodiment, the second vibration reduction groove is formed in parallel in the radial direction within the axial range of the flange where the abutting portion is located, and the overlapping area of the abutting portion and the second vibration reduction groove is increased as much as possible in the axial direction of the flange, so that the rigidity between the amplitude transformer and the tool handle main body at the vibration reduction structure is weakened, and the absorption of the vibration reduction structure to ultrasonic vibration is improved.

In at least one embodiment, the projection of the damping gap in the axial direction of the flange at least partially coincides with the projection of the abutment in the axial direction of the flange.

In the above embodiment, in the radial range of the flange where the abutting portion is located, the vibration damping gap exists in parallel in the axial direction, and the overlapping area of the abutting portion and the vibration damping gap is increased as much as possible in the radial direction of the flange, so that the rigidity between the amplitude transformer and the knife handle main body at the vibration damping structure is weakened, and the absorption of the vibration damping structure to ultrasonic vibration is improved.

In at least one embodiment, a recess is provided on the mating portion, and the flange abuts against the recess.

In the above embodiment, the flange and the matching part are matched through the concave-convex matching, so that the flange is convenient to install and match, meanwhile, the flange is removed to be abutted to the concave part of the matching part, the processing of the flange is facilitated, the structural strength of the flange is convenient to improve, and the service life of the flange is prolonged.

In at least one embodiment, a portion of the flange abuts against the mating portion in the axial direction of the flange, and the vibration damping gap is formed between the other portion of the flange and the shank body.

In the embodiment, the flange part is abutted and partially used for forming the vibration reduction gap, so that an approximate S-shaped structure is formed between the amplitude transformer and the knife handle main body on the axial section of the flange by the flange and the matching part, the vibration reduction structure is more similar to the structure of a spring, and the absorption of the vibration reduction structure to ultrasonic vibration is improved.

In at least one embodiment, the flange abuts against a portion of the mating portion in the axial direction of the flange, and the vibration damping gap is formed between the horn and another portion of the mating portion.

In the embodiment, the matching part is partially abutted and partially used for forming the vibration reduction gap, so that an approximate S-shaped structure is formed between the flange and the tool handle main body on the axial section of the flange, the vibration reduction structure is more similar to the structure of a spring, and the absorption of the vibration reduction structure to ultrasonic vibration is improved.

In at least one embodiment, the tool shank body is provided with a mounting cavity, and the mating portion is provided on a cavity wall within the mounting cavity.

In the above embodiment, the connection strength between the part of the amplitude transformer located in the mounting cavity and the cutter handle main body and the stability of the part can be enhanced, and the vibration reduction capability of the amplitude transformer for reducing the transmission of ultrasonic vibration to the periphery can be maintained.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope.

FIG. 1 is a schematic cross-sectional view of an ultrasonic tool with a vibration damping structure having a first vibration damping slot, a second vibration damping slot, and a vibration damping gap according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of an ultrasonic tool without a vibration damping gap in accordance with an embodiment of the present application;

fig. 3 is a schematic perspective view of an ultrasonic tool according to an embodiment of the application.

Description of main reference numerals:

Ultrasonic knife 100

Knife handle main body 1

Mating part 11

Recess 110

Mounting cavity 12

Amplitude transformer 2

Horn body 21

Flange 22

Abutment portion 220

Vibration damping structure 3

First vibration reduction groove 31

Second vibration damping groove 32

Damping gap 33

Tool head 4

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The term "parallel" is used to describe an ideal state between two components. In an actual production or use state, there may be a state of approximately parallelism between the two components. For example, in connection with numerical descriptions, parallel may refer to an angle between two straight lines ranging between 180++10°, parallel may refer to a dihedral angle between two planes ranging between 180++10°, and parallel may refer to an angle between a straight line and a plane ranging between 180++10°. The two components described as "parallel" may be considered "straight" or "planar" as they are considered "straight" or "planar" in that they are not strictly straight or planar, but may be substantially straight or planar in that they extend in a macroscopic manner.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, 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 application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The application provides an ultrasonic cutter which comprises a cutter handle main body, an amplitude transformer and a vibration reduction structure. The handle main body is provided with a matching part. The amplitude transformer comprises an amplitude transformer body and a flange, wherein the flange is arranged on the periphery of the amplitude transformer body, and the amplitude transformer transmits ultrasonic vibration for working along the axial direction of the flange. The vibration reduction structure is used for reducing ultrasonic vibration transmitted from the amplitude transformer to the cutter handle main body, and is provided with at least two of a first vibration reduction groove, a second vibration reduction groove and a vibration reduction gap. The first vibration reduction groove is arranged on the matching part, is recessed along the axial direction of the flange and extends around the circumference of the flange. The second vibration reduction groove is formed in the flange, is recessed along the axial direction of the flange and extends around the circumference of the flange. The flange is abutted against the matching part, so that the vibration reduction gap is formed between the amplitude transformer and the knife handle main body.

The ultrasonic cutter is provided with a vibration reduction structure, and an elastic structure is formed between the amplitude transformer and the cutter handle main body by propping the flange and the matching part, so that the rigidity is weakened, the natural frequency is reduced, and most of vibration energy can be absorbed by the flange when ultrasonic high-frequency vibration passes through the flange, so that the effect of blocking vibration transmission is achieved, and the transmission of ultrasonic vibration from the amplitude transformer to the cutter handle main body can be reduced; and the vibration reduction structure is selectively arranged between the amplitude transformer and the tool handle main body, and the matching part is arranged on the tool handle main body to realize the vibration reduction effect together with the flange, so that the transmission efficiency of ultrasonic vibration to the tool end is improved, the structural design of the amplitude transformer is simplified, the design cost is reduced, and the service life of the ultrasonic cutter is prolonged.

The first vibration reduction groove, the second vibration reduction groove and the vibration reduction gap respectively refer to a cutter handle main body or a cavity area formed by the amplitude transformer and the cutter handle main body in a matched mode.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without collision.

Referring to fig. 1-3, an embodiment of the present application provides an ultrasonic blade 100 comprising a handle body 1, a horn 2, and a vibration reduction structure 3. The holder body 1 is provided with a mating portion 11. The amplitude transformer 2 comprises an amplitude transformer body 21 and a flange 22, the flange 22 is arranged on the periphery of the amplitude transformer body 21, and the amplitude transformer 2 transmits ultrasonic vibration for working along the axial direction of the flange 22. The vibration damping structure 3 is for reducing ultrasonic vibrations transmitted from the horn 2 to the shank body 1, and the vibration damping structure 3 is provided with at least two of a first vibration damping groove 31, a second vibration damping groove 32, and a vibration damping gap 33. The first vibration reduction groove 31 is provided in the fitting portion 11, and the first vibration reduction groove 31 is recessed in the axial direction of the flange 22 and extends around the circumferential direction of the flange 22. The second vibration reduction groove 32 is provided in the flange 22, and the second vibration reduction groove 32 is recessed in the axial direction of the flange 22 and extends around the circumferential direction of the flange 22. The flange 22 is abutted against the mating portion 11, so that a vibration damping gap 33 is formed between the horn 2 and the holder body 1. In the above scheme, the ultrasonic cutter 100 is provided with the vibration reduction structure 3, and is propped against the matching part 11 between the amplitude transformer 2 and the cutter handle main body 1 through the flange 22 to form an elastic structure, so that the rigidity is weakened, the natural frequency is reduced, and when the high-frequency vibration of the ultrasonic passes through the flange 22, most of vibration energy can be absorbed by the flange 22, so that the effect of blocking vibration transmission is achieved, and the transmission of the ultrasonic vibration from the amplitude transformer 2 to the cutter handle main body 1 can be reduced; and vibration reduction structure 3 is at amplitude transformer 2, handle of a knife main part 1 and the selectivity setting between the two, sets up cooperation portion 11 and flange 22 cooperation and realize the vibration reduction effect jointly on handle of a knife main part 1, when promoting the transmission efficiency of ultrasonic vibration to the instrument end, simplify the structural design of amplitude transformer 2, reduce design cost, improve ultrasonic cutter 100 life. In some embodiments, the horn body 21 is disposed coaxially with the flange 22.

The axial direction of the flange 22 is indicated by the arrow X in fig. 1 and 2.

In some embodiments, the first vibration reduction groove 31 and the second vibration reduction groove 32 are annular grooves around the flange 22, the vibration reduction gap 33 is annular gap around the flange 22, and the annular rings are coaxial with the flange 22, so as to improve the vibration reduction effect of the vibration reduction structure 3. In other embodiments, the first vibration damping groove 31, the second vibration damping groove 32, and the vibration damping gap 33 may be provided in a stepwise manner at intervals in the circumferential direction of the flange 22.

In some embodiments, flange 22 is located at the vibration node of horn 2.

Referring to fig. 1, in some embodiments, when the vibration reducing structure 3 is provided with the vibration reducing gap 33, the flange 22 can block one side of the vibration reducing gap 33 in the axial direction of the flange 22 so that the other side of the vibration reducing gap 33 forms an opening, and the opening of the vibration reducing gap 33 faces opposite to the notch of the first vibration reducing groove 31 and/or opposite to the notch of the second vibration reducing groove 32 in the axial direction of the flange 22. As shown in fig. 1, the opening direction of the damper gap 33 is indicated by an arrow 33A, the notch direction of the first damper groove 31 is indicated by an arrow 31A, the notch direction of the second damper groove 32 is indicated by an arrow 32A, and the angle between the two arrows is regarded as the opposite direction between 120 ° and 180 °. In the radial direction of the flange 22, the vibration damping gap 33 is adjacent to the first vibration damping groove 31 and/or the second vibration damping groove 32, whether the opening direction of the vibration damping gap 33 is opposite to the notch direction of the first vibration damping groove 31 or the opening direction of the vibration damping gap 33 is opposite to the notch direction of the second vibration damping groove 32, the flange 22 and the matching part 11 can form an approximate S structure on the axial section (namely the section shown in fig. 1) of the flange 22 between the amplitude transformer 2 and the knife handle main body 1, the vibration damping structure 3 is more similar to a spring structure, and the absorption effect of the vibration damping structure 3 on ultrasonic vibration is improved; if the vibration damping structure 3 is provided with the first vibration damping groove 31, the second vibration damping groove 32 and the vibration damping gap 33 at the same time, the S structure can be further extended in a meandering manner, and the capability of the vibration damping structure 3 to prevent transmission of ultra-deep vibration from the horn 2 to the handle body 1 can be further improved.

In other embodiments, in conjunction with fig. 1, the damping gap 33 and the notch of the first damping groove 31 and/or the notch of the second damping groove 32 are oriented in the same direction, so that a damping effect can be achieved between the horn 2 and the tool holder body 1, and the structural design of the horn 2 can be simplified, so that the design cost can be reduced, and the ultrasonic tool 100 can be easily manufactured, processed and assembled.

Referring to fig. 2, in some embodiments, when the vibration damping structure 3 is not provided with the vibration damping gap 33, the notch orientation of the first vibration damping groove 31 is opposite to the notch orientation of the second vibration damping groove 32 in the axial direction of the flange 22. As shown in fig. 2, the notch direction of the first vibration reduction groove 31 is the direction indicated by the arrow 31A, the notch direction of the second vibration reduction groove 32 is the direction indicated by the arrow 32A, and the angle between the two arrows is considered as the opposite direction between 120 ° and 180 °. In the radial direction of the flange 22, the first vibration reduction groove 31 is adjacent to the second vibration reduction groove 32, and the notch of the first vibration reduction groove 31 is opposite to the notch of the second vibration reduction groove 32, so that the flange 22 and the matching part 11 form an approximate S-shaped structure between the amplitude transformer 2 and the knife handle main body 1 on the axial section (i.e. the section shown in fig. 2) of the flange 22, the vibration reduction structure 3 is more similar to a spring structure, and the absorption of ultrasonic vibration by the vibration reduction structure 3 is improved.

In other embodiments, in combination with fig. 2, the notch orientation of the first vibration reduction groove 31 is the same as the notch orientation of the second vibration reduction groove 32, so that a vibration reduction effect can be achieved between the amplitude transformer 2 and the tool shank body 1, the structural design of the amplitude transformer 2 can be simplified, the design cost can be reduced, and the ultrasonic tool 100 is easy to manufacture, process and assemble.

Referring to fig. 1 and 2, in some embodiments, the flange 22 includes an abutment 220, and the abutment 220 abuts against the mating portion 11 at least in a radial direction of the flange 22. Because the flange 22 and the matching part 11 need to have a certain extension length in the axial direction of the flange 22 so as to form a first vibration reduction groove 31 and a second vibration reduction groove 32 with notches facing the axial direction parallel to the flange 22 and a vibration reduction gap 33 with openings facing the axial direction parallel to the flange 22, the flange 22 is abutted with the matching part 11 in the radial direction of the flange 22 through the abutting part 220, and the flange 22 is connected with the matching part 11, so that the vibration reduction structure 3 is easier to form an elastic structure between the amplitude transformer 2 and the tool handle main body 1, the structural form of the amplitude transformer 2 and the tool handle main body 1 is simplified, and the cost is reduced.

In some embodiments, the abutment 220 and the mating portion 11 may abut in an axial direction of the flange 22, such that the horn 2 is restrained axially of the flange 22 relative to the shank body 1, improving stability of the horn 2.

Referring to fig. 1 and 2, in some embodiments, a projection of the abutment 220 in a radial direction of the flange 22 at least partially coincides with a projection of the first vibration reduction groove 31 in a radial direction of the flange 22. Wherein, the projection of the abutting part 220 in the radial direction of the flange 22 is a region shown as 220A; the projection of the first vibration reduction groove 31 in the radial direction of the flange 22 is specifically the projection of the spatial boundary defined by the first vibration reduction groove 31 in the radial direction of the flange 22, which projection is the area indicated by 31B. In the axial range of the flange 22 where the abutting part 220 is located, the first vibration reduction grooves 31 are arranged in parallel in the radial direction, and the overlapping area of the abutting part 220 and the first vibration reduction grooves 31 is increased as much as possible in the axial direction of the flange 22, so that the rigidity between the amplitude transformer 2 and the knife handle main body 1 at the vibration reduction structure 3 is weakened, and the absorption of the vibration reduction structure 3 to ultrasonic vibration is improved. In some embodiments, the projection of the abutting portion 220 in the radial direction of the flange 22 is all within the projection range of the first vibration reduction groove 31 in the radial direction of the flange 22, and the vibration reduction effect of the vibration reduction structure 3 is better.

Referring to fig. 1 and 2, in some embodiments, a projection of the abutment 220 in a radial direction of the flange 22 at least partially coincides with a projection of the second vibration reduction groove 32 in a radial direction of the flange 22. Wherein, the projection of the abutting part 220 in the radial direction of the flange 22 is a region shown as 220A; the projection of the second vibration reduction groove 32 in the radial direction of the flange 22 is specifically the projection of the spatial boundary defined by the second vibration reduction groove 32 in the radial direction of the flange 22, which projection is the area indicated by 32B. In the axial range of the flange 22 where the abutting part 220 is located, the second vibration reduction grooves 32 are arranged in parallel in the radial direction, and the overlapping area of the abutting part 220 and the second vibration reduction grooves 32 is increased as much as possible in the axial direction of the flange 22, so that the rigidity between the amplitude transformer 2 and the knife handle main body 1 at the vibration reduction structure 3 is weakened, and the absorption of the vibration reduction structure 3 to ultrasonic vibration is improved. In some embodiments, the projection of the abutting portion 220 in the radial direction of the flange 22 is all within the projection range of the second vibration reduction groove 32 in the radial direction of the flange 22, and the vibration reduction effect of the vibration reduction structure 3 is better.

Referring to fig. 1, in some embodiments, the projection of the vibration damping gap 33 in the axial direction of the flange 22 at least partially coincides with the projection of the abutment 220 in the axial direction of the flange 22. Wherein, the projection of the abutting part 220 in the axial direction of the flange 22 is a region shown as 220B; the projection of the damper gap 33 in the axial direction of the flange 22 is specifically the projection of the spatial boundary defined by the damper gap 33 in the axial direction of the flange 22, which projection is the area indicated by 33B. In the radial range of the flange 22 where the abutting part 220 is located, a vibration reduction gap 33 is arranged in parallel in the axial direction, and the overlapping area of the abutting part 220 and the vibration reduction gap 33 is increased as much as possible in the radial direction of the flange 22, so that the rigidity between the amplitude transformer 2 and the knife handle main body 1 at the vibration reduction structure 3 is weakened, and the absorption of the vibration reduction structure 3 to ultrasonic vibration is improved. In some embodiments, the projection of the vibration damping gap 33 in the axial direction of the flange 22 is all within the projection range of the abutment 220 in the axial direction of the flange 22, and the vibration damping effect of the vibration damping structure 3 is better.

Referring to fig. 1 and 2, in some embodiments, the mating portion 11 is provided with a recess 110, and the flange 22 abuts against the recess 110. The flange 22 and the matching part 11 are matched in a concave-convex manner, so that the flange 22 is convenient to install and match, meanwhile, the flange 22 is removed to be abutted against the concave part 110 of the matching part 11, the processing of the flange 22 is facilitated, the structural strength of the flange 22 is convenient to improve, and the service life is prolonged. Specifically, the flange 22 is abutted against the recess 110 of the fitting portion 11 by the abutment portion 220. In other embodiments, instead of providing the flange 22 with the recess 110, the engaging portion 11 may abut against the recess 110 of the flange 22 to achieve a concave-convex engagement, so as to facilitate installation and positioning.

Referring to fig. 1 and 2, in some embodiments, a portion of the flange 22 abuts against the mating portion 11 in the axial direction of the flange 22, and a vibration damping gap 33 is formed between the other portion of the flange 22 and the shank body 1. The flange 22 is partially abutted and partially used for forming a vibration reduction gap 33, which is beneficial to forming an approximate S-shaped structure between the flange 22 and the matching part 11 on the axial section of the flange 22 between the amplitude transformer 2 and the knife handle main body 1, so that the vibration reduction structure 3 is more similar to a spring structure, and the absorption of the vibration reduction structure 3 to ultrasonic vibration is improved. In some embodiments, in the axial direction of the flange 22, a portion of the flange 22 may abut against all of the mating portion 11, with a vibration damping gap 33 formed between another portion of the flange 22 and the shank body 1; or a part of the flange 22 abuts against a part of the fitting portion 11, and a damper gap 33 is formed between the other part of the flange 22 and the other part of the fitting portion 11.

In some embodiments, and with reference to fig. 1 and 2, the flange 22 abuts a portion of the mating portion 11 in the axial direction of the flange 22, and a vibration damping gap 33 is formed between the horn 2 and another portion of the mating portion 11. The matching part 11 is partially abutted and partially used for forming a vibration reduction gap 33, which is beneficial to forming an approximate S-shaped structure between the flange 22 and the matching part 11 on the axial section of the flange 22 between the amplitude transformer 2 and the knife handle main body 1, so that the vibration reduction structure 3 is more similar to a spring structure, and the absorption of the vibration reduction structure 3 to ultrasonic vibration is improved. In some embodiments, in the axial direction of the flange 22, a part of the fitting 11 abuts against the entirety of the flange 22, and a vibration damping gap 33 is formed between the other part of the fitting 11 and the horn body 21; or a part of the fitting portion 11 abuts against a part of the flange 22, and a damper gap 33 is formed between the other part of the fitting portion 11 and the other part of the flange 22.

Referring to fig. 1 and 2, in some embodiments, the tool shank body 1 is provided with a mounting cavity 12, and the mating portion 11 is provided on a cavity wall within the mounting cavity 12. The strength of the connection between the portion of the horn 2 located in the installation cavity 12 and the handle body 1 and the stability of the portion itself can be enhanced while maintaining the vibration damping ability of the horn 2 to reduce the transmission of ultrasonic vibrations to the surroundings. In other embodiments, the matching portion 11 is disposed at the cavity opening of the mounting cavity 12, so that the ultrasonic vibration transmitted by the amplitude transformer 2 around can be reduced.

Referring to fig. 1 and 2, in some embodiments, the ultrasonic blade 100 further comprises a tool head 4, the tool head 4 being disposed on a portion of the horn 2 extending out of the mounting chamber 12, the horn 2 transmitting operative ultrasonic vibrations to the tool head 4.

In one embodiment, as shown in connection with fig. 1, the vibration damping structure 3 is provided with a first vibration damping groove 31, a second vibration damping groove 32 and a vibration damping gap 33.

In an embodiment, as shown in fig. 1, the second vibration reduction groove 32 is filled, so that the vibration reduction structure 3 is provided with the first vibration reduction groove 31 and the vibration reduction gap 33.

In an embodiment, as shown in fig. 1, the first vibration reduction groove 31 is filled, so that the vibration reduction structure 3 is provided with the second vibration reduction groove 32 and the vibration reduction gap 33.

In one embodiment, the flange 22 is attached to the mating portion 11, and as shown in fig. 2, the vibration damping structure 3 is provided with a first vibration damping groove 31 and a second vibration damping groove 32.

According to the ultrasonic cutter 100, the vibration reduction structure 3 is arranged, the flange 22 and the matching part 11 are propped against each other between the amplitude transformer 2 and the cutter handle main body 1 to form an elastic structure, the rigidity is weakened, the natural frequency is reduced, and when ultrasonic high-frequency vibration passes through the flange 22, most of vibration energy is absorbed by the flange 22, so that the effect of blocking vibration transmission is achieved, and the transmission of ultrasonic vibration from the amplitude transformer 2 to the cutter handle main body 1 can be reduced; and vibration reduction structure 3 is at amplitude transformer 2, handle of a knife main part 1 and the selectivity setting between the two, sets up cooperation portion 11 and flange 22 cooperation and realize the vibration reduction effect jointly on handle of a knife main part 1, when promoting the transmission efficiency of ultrasonic vibration to the instrument end, simplify the structural design of amplitude transformer 2, reduce design cost, improve ultrasonic cutter 100 life.

The above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present application.

The information disclosed in the background section of the application is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Claims (10)

1. An ultrasonic cutter is characterized in that: comprising the following steps:

The tool handle body is provided with a matching part;

the amplitude transformer comprises an amplitude transformer body and a flange, wherein the flange is arranged on the periphery of the amplitude transformer body, and the amplitude transformer transmits ultrasonic vibration for working along the axial direction of the flange;

The vibration reduction structure is used for reducing ultrasonic vibration transmitted by the amplitude transformer to the cutter handle main body and is provided with at least two of a first vibration reduction groove, a second vibration reduction groove and a vibration reduction gap;

The first vibration reduction groove is arranged on the matching part, is recessed along the axial direction of the flange and extends around the circumference of the flange;

the second vibration reduction groove is arranged on the flange, is recessed along the axial direction of the flange and extends around the circumference of the flange;

the flange is abutted against the matching part, so that the vibration reduction gap is formed between the amplitude transformer and the knife handle main body.

2. The ultrasonic blade of claim 1, wherein: when the vibration reduction structure is provided with the vibration reduction gap, the flange can seal one side of the vibration reduction gap in the axial direction of the flange to form an opening on the other side of the vibration reduction gap,

And, in the direction of the flange axial direction, the opening of the vibration damping gap faces opposite to the notch of the first vibration damping groove and/or opposite to the notch of the second vibration damping groove.

3. The ultrasonic blade of claim 1, wherein: when the vibration reduction structure is not provided with the vibration reduction gap, the notch of the first vibration reduction groove faces opposite to the notch of the second vibration reduction groove in the axial direction of the flange.

4. The ultrasonic blade of claim 1, wherein: the flange includes an abutting portion that abuts against the mating portion at least in a radial direction of the flange.

5. The ultrasonic blade of claim 4, wherein: the projection of the abutting portion in the radial direction of the flange is at least partially overlapped with the projection of the first vibration reduction groove in the radial direction of the flange.

6. The ultrasonic blade of claim 4, wherein: the projection of the abutting portion in the radial direction of the flange is at least partially overlapped with the projection of the second vibration reduction groove in the radial direction of the flange.

7. The ultrasonic blade of claim 4, wherein: the projection of the vibration reduction gap in the axial direction of the flange is at least partially overlapped with the projection of the abutting part in the axial direction of the flange.

8. The ultrasonic blade of claim 1, wherein: the matching part is provided with a concave part, and the flange is abutted with the concave part.

9. The ultrasonic blade of claim 1, wherein: in the axial direction of the flange, one part of the flange is abutted with the matching part, and the vibration reduction gap is formed between the other part of the flange and the cutter handle main body.

10. The ultrasonic blade of claim 1, wherein: in the axial direction of the flange, the flange is abutted against one part of the matching part, and the vibration reduction gap is formed between the amplitude transformer and the other part of the matching part.