CN218657830U

CN218657830U - Ultrasonic knife handle

Info

Publication number: CN218657830U
Application number: CN202223141858.9U
Authority: CN
Inventors: 赵学奇; 马原; 许超
Original assignee: Shenzhen Qingding Equipment Co ltd
Current assignee: Shenzhen Qingding Equipment Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-21
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses an ultrasonic wave handle of a knife, including ultrasonic vibration unit, amplitude transformer and hydraulic pressure chuck unit, wherein the front end of ultrasonic vibration unit is connected the rear end of amplitude transformer, the rear end of hydraulic pressure chuck unit is connected the front end of amplitude transformer, the front end of hydraulic pressure chuck unit is used for coming an erection joint cutter through adjusting hydraulic pressure. The utility model provides an adopt hydraulic pressure chuck's ultrasonic wave handle of a knife has improved the precision of ultrasonic wave handle of a knife cutter, has reduced the cutter loading and unloading operation degree of difficulty.

Description

Ultrasonic knife handle

Technical Field

The utility model relates to an ultrasonic machining technical field especially relates to an ultrasonic wave handle of a knife.

Background

In recent years, ultrasonic machining is rapidly developed, and when the ultrasonic knife handle is machined, a cutter is driven by ultrasonic to vibrate in a high-frequency and micro mode, so that the effects of reducing cutting force, cutting heat and cutter load, reducing cutter loss and improving part machining quality are achieved. The ultrasonic knife handle on the market at present mainly fixes the cutter on the knife handle through the collet chuck, and the cutter loading and unloading operation is complicated, and cutter and knife handle axiality are difficult to guarantee.

The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an adopt ultrasonic wave handle of a knife of hydraulic pressure chuck has improved the precision of ultrasonic wave handle of a knife cutter, has reduced the cutter loading and unloading operation degree of difficulty.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses an ultrasonic wave handle of a knife, including ultrasonic vibration unit, amplitude transformer and hydraulic pressure chuck unit, wherein the front end of ultrasonic vibration unit is connected the rear end of amplitude transformer, the rear end of hydraulic pressure chuck unit is connected the front end of amplitude transformer, the front end of hydraulic pressure chuck unit is used for coming an erection joint cutter through adjusting hydraulic pressure.

Preferably, the hydraulic chuck unit comprises a hydraulic chuck base body and a pressurizing piece, the rear end of the hydraulic chuck base body is connected to the front end of the amplitude transformer, a cutter connecting hole is formed in the front end of the hydraulic chuck base body and used for installing and connecting a cutter, a pressurizing hole and a liquid cavity are further formed in the hydraulic chuck base body, the pressurizing hole is communicated with the liquid cavity, the pressurizing hole is used for being connected with the pressurizing piece in a matched mode and used for adjusting the pressure in the liquid cavity, and the liquid cavity is arranged on the outer side of the cutter connecting hole in parallel.

Preferably, an expansion wall is arranged between the liquid cavity and the cutter connecting hole.

Preferably, the pressurizing hole is provided perpendicular to a sidewall of the cutter attachment hole.

Preferably, the pressurizing piece adopts a pressurizing screw plug structure, and the pressurizing hole is correspondingly of an internal thread structure.

Preferably, the rear end of the hydraulic chuck base body is integrally connected to the front end of the horn.

Preferably, the front end of the amplitude transformer is sequentially provided with a guide groove and an internal threaded hole from front to back, the diameter of the guide groove is larger than that of the internal threaded hole, the rear end of the hydraulic chuck base body is sequentially provided with an external threaded part and a guide post from back to front, the guide post is matched with the guide groove, and the external threaded part is matched with the internal threaded hole to connect the rear end of the hydraulic chuck base body to the front end of the amplitude transformer.

Preferably, the ultrasonic knife handle further comprises a knife handle shell and a gland, a cavity is formed in the front end of the knife handle shell, an amplitude transformer flange is arranged at the outer circumference of the amplitude transformer, and the gland is fixedly connected to the front end of the cavity to fixedly connect the amplitude transformer flange between the knife handle shell and the gland.

Preferably, an amplitude transformer flange is arranged at the outer circumference of the amplitude transformer, and 4-8 spiral grooves which are uniformly distributed are formed in the outer circumference of the amplitude transformer flange, which is positioned at the front side of the amplitude transformer flange.

Preferably, a mounting hole is formed in the rear end of the amplitude transformer, the ultrasonic vibration unit comprises a screw, a rear cover plate, a plurality of electrode plates and a plurality of piezoelectric ceramic plates, the electrode plates and the piezoelectric ceramic plates are coaxial and are arranged between the rear cover plate and the amplitude transformer in an axial alternating mode, and the screw penetrates through the rear cover plate, the electrode plates and the piezoelectric ceramic plates and then is fixedly connected to the position, at the mounting hole, of the amplitude transformer so as to fixedly connect the electrode plates and the piezoelectric ceramic plates to the rear end of the amplitude transformer.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides an ultrasonic knife handle combines hydraulic pressure chuck unit to use in the ultrasonic knife handle, and hydraulic pressure chuck unit wherein has better damping effect, good centre gripping stability and loading and unloading cutter and easily operates to make the ultrasonic knife handle can combine hydraulic pressure chuck unit's advantage, make the cutter loading and unloading operation of ultrasonic knife handle become simple and easy, and cutter and ultrasonic knife handle axiality change in guaranteeing.

The hydraulic chuck unit and the amplitude transformer can be separated and integrated, modularization can be flexibly realized, and the processing difficulty is reduced. When the hydraulic chuck unit is used for machining, the hydraulic chuck unit has a good damping effect, and the damping characteristic in the liquid cavity can reduce vibration generated when the cutter cuts a workpiece, so that the influence of the vibration generated when the cutter cuts the workpiece on the performance of the ultrasonic cutter handle is reduced.

Drawings

Fig. 1 is a schematic structural view of an ultrasonic knife handle according to a first embodiment of the present invention;

FIG. 2 is a schematic view of the horn of FIG. 1;

FIG. 3 is a schematic diagram of the construction of the base of the hydraulic chuck of FIG. 1;

fig. 4 is a schematic structural view of an ultrasonic knife handle according to a second embodiment of the present invention;

fig. 5 is a schematic structural view of an ultrasonic knife handle according to a third embodiment of the present invention;

fig. 6 is a schematic structural view of the ultrasonic knife handle of the first embodiment of the present invention applied to a BT machine tool;

fig. 7 is a schematic structural diagram of the first embodiment of the present invention, in which the ultrasonic knife handle is applied to an HSK machine tool.

Detailed Description

The embodiments of the present invention will be described in detail below. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for either a fixed function or a circuit/signal communication function.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It should be noted that, for convenience of illustration, to clarify the positional relationship between the structures, "front" described in the embodiment of the present invention refers to the direction in which the mounting position of the tool in the entire ultrasonic tool handle is located, and "rear" refers to the direction opposite to "front".

Example one

As shown in fig. 1, the embodiment of the utility model discloses an ultrasonic knife handle, including ultrasonic vibration unit 10, become width of cloth pole 20 and hydraulic chuck unit 30, the rear end at width of cloth pole 20 is connected to the front end of ultrasonic vibration unit 10, and the front end at width of cloth pole 20 is connected to the rear end of hydraulic chuck unit 30, and the front end of hydraulic chuck unit 30 is used for installing and connecting a cutter 40 through adjusting hydraulic pressure.

Referring to fig. 2, an amplitude transformer flange 21 is disposed on an outer circumference of the amplitude transformer 20, a mounting hole 22 is disposed at a rear end of the amplitude transformer, a guide groove 24 and an internal threaded hole 23 are sequentially disposed at a front end of the amplitude transformer from front to back, and a diameter of the guide groove 24 is greater than a diameter of the internal threaded hole 23. The ultrasonic vibration unit 10 comprises a screw 11, a back cover plate 12, a plurality of electrode plates 13 and a plurality of piezoelectric ceramic plates 14, wherein the electrode plates 13 and the piezoelectric ceramic plates 14 are coaxial and are alternately arranged between the back cover plate 12 and an amplitude transformer 20 along the axial direction, the electrode plates 13 are copper electrode plates, and the copper electrode plates are electrically connected with an electric energy transmission system. The screw 11 is fixedly connected to the mounting hole 22 of the horn 20 after passing through the back cover plate 12, the plurality of electrode pads 13 and the plurality of piezoelectric ceramic plates 14, so as to fixedly connect the plurality of electrode pads 13 and the plurality of piezoelectric ceramic plates 14 to the rear end of the horn 20.

Referring to fig. 3, the hydraulic chuck unit 30 includes a hydraulic chuck base 31 and a pressing member 32, a rear end of the hydraulic chuck base 31 is connected to a front end of the horn 20, wherein a tool connecting hole 311 is formed at the front end of the hydraulic chuck base 31 for installing and connecting a tool 40, a pressing hole 312 and a fluid chamber 313 are further formed in the hydraulic chuck base 31, the pressing hole 312 and the fluid chamber 313 are communicated with each other, the pressing hole 312 is disposed perpendicular to a side wall of the tool connecting hole 311, the pressing hole 312 is used for being in fit connection with the pressing member 32 for adjusting a pressure in the fluid chamber 313, the fluid chamber 313 is disposed in parallel at an outer side of the tool connecting hole 311 for adjusting a clamping force when the tool connecting hole 311 is connected to the tool 40 by controlling the pressure in the fluid chamber 313, and an expansion wall 314 is disposed between the fluid chamber 313 and the tool connecting hole 311. The pressurizing hole is arranged perpendicular to the side wall of the cutter connecting hole. In the present embodiment, the pressing member 32 has a pressing screw structure, and the pressing hole 311 has an internal thread structure.

The rear end of the hydraulic chuck base body 31 is provided with an external thread portion 315 and a guide post 316 in this order from the rear to the front, the guide post 316 and the guide groove 24 are matched with each other, and the external thread portion 315 and the internal thread hole 23 are cooperatively connected with each other to connect the rear end of the hydraulic chuck base body 31 to the front end of the horn 20. Wherein, the precise fit of the guide post 316 and the guide groove 24 ensures the coaxiality of the hydraulic chuck base body 31 and the amplitude transformer 20 when the hydraulic chuck base body 31 is repeatedly assembled and disassembled, the liquid cavity 313 on the hydraulic chuck base body 31 can be filled with high-pressure oil, the high-pressure oil in the closed liquid cavity 313 is increased by screwing the pressurizing piece 32 by using an inner hexagonal wrench, the high-pressure oil uniformly transmits the pressure to each part of the closed liquid cavity 313, and the expansion wall 314 is expanded to clamp the cutter 40.

The piezoelectric ceramic plate 14 behind the ultrasonic knife handle transmits ultrasonic energy to the working end of the cutter 40 after amplitude variation of the ultrasonic energy is carried out through the amplitude variation rod 20 through high-frequency ultrasonic vibration, the cutter 40 is driven to carry out high-frequency micro vibration, and machined parts are removed gradually, so that the effects of reducing cutting force, reducing cutting heat, reducing cutter load, reducing cutter loss and improving part machining quality are achieved. The damping characteristic in the hydraulic oil chamber (the liquid chamber 313) can reduce the vibration generated when the tool 40 cuts a workpiece because the hydraulic chuck unit 30 has a good damping effect, a good clamping stability and an easy operation of assembling and disassembling the tool during machining.

As shown in fig. 2, the node at which the ultrasonic tool shank has zero amplitude in the ultrasonic vibration state is set to the position of the horn flange 21 of the horn 20, and the ultrasonic vibration is prevented from being transmitted to the machine tool spindle connected to the rear through the horn flange 21 via the tool shank housing.

Example two

As shown in fig. 4, the ultrasonic blade handle of the present embodiment differs from the ultrasonic blade handle of the first embodiment only in that: a plurality of uniformly distributed helical grooves 25, for example 4 to 8, are provided in the horn 20 at the outer circumference thereof on the front side of the horn flange 21. The longitudinal ultrasonic vibration generated by the electrode slice 13 converts part of the longitudinal ultrasonic vibration into longitudinal-torsional ultrasonic composite vibration through the spiral groove 25 on the amplitude transformer 20, so that the amplitude transformer 20 is changed from an amplitude transformer which can only realize the longitudinal amplitude transformer to an amplitude transformer which can realize the longitudinal-torsional amplitude simultaneously, and the cutter 40 outputs longitudinal-torsional composite high-frequency vibration. Other structures of the ultrasonic knife handle of the present embodiment are the same as those of the ultrasonic knife handle of the first embodiment, and are not described herein again.

EXAMPLE III

As shown in fig. 5, the ultrasonic blade handle of the present embodiment differs from the ultrasonic blade handle of the first embodiment only in that: the rear end of the hydraulic chuck base 31 in this embodiment is integrally connected to the front end of the horn 20, that is, the horn 20 is integrated with the hydraulic chuck unit 30, and the hydraulic chuck unit 30 is provided at the front end of the horn 20. Other structures of the ultrasonic knife handle of the present embodiment are the same as those of the ultrasonic knife handle of the first embodiment, and are not described herein again.

Example four:

as shown in fig. 6, in the present embodiment, the ultrasonic tool shank 100 in the first embodiment is loaded into the BT40 tool shank housing 200 in the BT series, a cavity 201 is opened at the front end of the tool shank housing 200, the gland 300 is connected with the front end of the cavity 201 of the tool shank housing 200 in a matching manner through a thread 301, and the horn flange 21 is fixed on the tool shank housing 200, so that the ultrasonic tool shank 100 is applied to the BT machine tool for ultrasonic machining.

Example five:

as shown in fig. 7, in the present embodiment, the ultrasonic tool shank 100 in the first embodiment is loaded into the HSK63A tool shank housing 200 in the HSK series, a cavity 201 is formed in the front end of the tool shank housing 200, the gland 300 is in fit connection with the front end of the cavity 201 of the tool shank housing 200 through a thread 301, and the horn flange 21 is fixed on the tool shank housing 200, so that the ultrasonic tool shank 100 is applied to an HSK machine tool for ultrasonic machining.

The background section of the present invention may contain background information regarding the problems or environment of the present invention rather than describing the prior art by others. Accordingly, the inclusion in this background section is not an admission by the applicant that prior art is available.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific/preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. For those skilled in the art to which the present invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the present invention, and these alternatives or modifications should be considered as belonging to the protection scope of the present invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like, mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The ultrasonic knife handle is characterized by comprising an ultrasonic vibration unit, an amplitude transformer and a hydraulic chuck unit, wherein the front end of the ultrasonic vibration unit is connected to the rear end of the amplitude transformer, the rear end of the hydraulic chuck unit is connected to the front end of the amplitude transformer, and the front end of the hydraulic chuck unit is used for installing and connecting a knife tool through adjusting hydraulic pressure.

2. The ultrasonic knife handle according to claim 1, wherein the hydraulic chuck unit comprises a hydraulic chuck base body and a pressurizing piece, the rear end of the hydraulic chuck base body is connected to the front end of the amplitude transformer, a knife connecting hole is formed in the front end of the hydraulic chuck base body and used for installing and connecting a knife, a pressurizing hole and a liquid cavity are further formed in the hydraulic chuck base body and communicated with each other, the pressurizing hole is used for being connected with the pressurizing piece in a matched mode and used for adjusting the pressure in the liquid cavity, and the liquid cavity is arranged on the outer side of the knife connecting hole in parallel.

3. An ultrasonic blade holder according to claim 2 in which an expansion wall is provided between the fluid chamber and the blade attachment aperture.

4. An ultrasonic blade holder according to claim 2 wherein the pressure port is disposed perpendicular to a side wall of the blade attachment bore.

5. An ultrasonic knife handle according to claim 2, wherein the pressurizing member is a pressurizing screw plug structure, and the pressurizing hole is a corresponding internal thread structure.

6. The ultrasonic blade handle of claim 2, wherein the rearward end of the hydraulic collet base is integrally connected to the forward end of the horn.

7. The ultrasonic knife handle according to claim 2, characterized in that a guide groove and an internal threaded hole are sequentially formed in the front end of the amplitude transformer from front to back, the diameter of the guide groove is larger than that of the internal threaded hole, an external threaded part and a guide post are sequentially arranged at the rear end of the hydraulic chuck base body from back to front, the guide post and the guide groove are matched with each other, and the external threaded part and the internal threaded hole are mutually matched and connected to connect the rear end of the hydraulic chuck base body to the front end of the amplitude transformer.

8. The ultrasonic knife handle according to any one of claims 1 to 7, further comprising a knife handle housing and a gland, wherein a cavity is formed in the front end of the knife handle housing, a horn flange is arranged on the outer circumference of the horn, and the gland is fixedly connected to the front end of the cavity to fixedly connect the horn flange between the knife handle housing and the gland.

9. The ultrasonic knife handle according to any one of claims 1 to 7, wherein a horn flange is arranged at the outer circumference of the horn, and 4-8 spiral grooves are uniformly distributed on the outer circumference of the horn flange at the front side of the horn flange.

10. The ultrasonic knife handle according to any one of claims 1 to 7, wherein a mounting hole is formed at the rear end of the horn, the ultrasonic vibration unit comprises a screw, a back cover plate, a plurality of electrode plates and a plurality of piezoelectric ceramic plates, the electrode plates and the piezoelectric ceramic plates are coaxial and are axially and alternately arranged between the back cover plate and the horn, and the screw penetrates through the back cover plate, the electrode plates and the piezoelectric ceramic plates and then is fixedly connected to the mounting hole of the horn so as to fixedly connect the electrode plates and the piezoelectric ceramic plates to the rear end of the horn.