LU503842B1 - Ultrasonic vibrator with extendable frequency bands - Google Patents
Ultrasonic vibrator with extendable frequency bands Download PDFInfo
- Publication number
- LU503842B1 LU503842B1 LU503842A LU503842A LU503842B1 LU 503842 B1 LU503842 B1 LU 503842B1 LU 503842 A LU503842 A LU 503842A LU 503842 A LU503842 A LU 503842A LU 503842 B1 LU503842 B1 LU 503842B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- cover plate
- extendable
- ultrasonic vibrator
- frustum
- frequency bands
- Prior art date
Links
- 230000036316 preload Effects 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000003754 machining Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
- B06B1/0614—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile for generating several frequencies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Ultrasonic vibrator with extendable frequency bands Disclosed is an ultrasonic vibrator with extendable frequency bands, including tools different in shape and size, an amplitude transformer, piezoelectric ceramics and a preload bolt. The amplitude transformer is composed of a front cover plate, a frustum, a flange plate and a rear cover plate. The front cover plate is arranged at a top of the frustum, the flange plate is arranged at a bottom of the frustum, and the rear cover plate is arranged at a bottom of the flange plate. The tools different in shape and size are connected to the front cover plate through threads, the piezoelectric ceramics sleeve the preload bolt in a penetrating manner, and the preload bolt is connected to the rear cover plate through threads. By means of the present invention, the frequency of the ultrasonic vibrator can be matched with more different tools within a center frequency range. Finally, different vibrators within the center frequency range vibrate many times.
Description
ULTRASONIC VIBRATOR WITH EXTENDABLE FREQUENCY BANDS LU503842
[0001] The present invention relates to the technical field of lamps creating atmospheres, and more particularly relates to an ultrasonic vibrator with extendable frequency bands.
[0002] Ceramic rock plates are novel building materials, which have become popular in recent years, have advantages of being resistant to a high temperature, acid and base, non-radiative, impermeable, etc., and thus are widely applied in the fields of kitchen home, etc. Machining of this kind of hard and brittle materials is different from that of metal materials, which focuses on brittleness removal. Current small hole machining of the rock plates mostly adopts ordinary machining with a diamond grinding head, but due to high hardness and brittleness of the rock plates, tool head wear is fast, machining efficiency is low, edge breakage is likely to happen, the yield is reduced, and meanwhile production costs of enterprises are greatly increased. Thus, a new machining method is needed for machining this kind of hard and brittle materials.
[0003] Ultrasonic-assisted machining is a kind of combined machining technology, belonging to non-traditional machining, which removes materials by applying ultrasonic vibration to workpieces or tools, and is widely applied in the fields of mold manufacturing, medical equipment, aerospace, etc. Many scholars have found through researches that ultrasonic-assisted machining has obvious advantages, particularly in machining of the hard and brittle materials. However, rotary ultrasonic machining applies rotary movement on the basis of ultrasonic machining through machining tool heads, which is implemented mainly by changing a shape of an amplitude transformer. Ultrasonic-assisted machining has advantages of reducing cutting force and tool head wear, having a wide machining application range, improving workpiece surface quality, etc.
[0004] Critical parts for ultrasonic-assisted machining of the rock plates lie in ultrasonic vibrator design. According to existing technical schemes, one vibrator can be only matched with one tool close to it in shape and size within a vibrator center frequency range, mainly because once the shape and the size of the amplitude transformer of the vibrator are determined, the overall vibration frequency of the vibrator is determined within a small range. It can be known according to practical work experience that when a frequency difference between two LU503842 vibrators is 1.5 KHz or below, the two vibrators can adopt the same frequency for matching, or otherwise, one frequency is not within a design range, which influences stability. Thus, in practical production, when there are several different tools, different vibrators the same with the tools in number are needed, which causes that the cost is high, and production is not facilitated. Thus, the frequency of the vibrators needs to be extended so that the vibrators can be matched with more different tools.
[0005] There are frequency band extending manners at present, which mainly include punching several through holes in the amplitude transformer so as to reduce an effective mass of the amplitude transformer. But the range of this kind of frequency band extending is narrow, and the objective is to realize multi-frequency vibration in the same vibrator rather than realize multiple vibrations in different vibrators.
[0006] In view of the defects in the prior art, the present invention aims to provide an ultrasonic vibrator with extendable frequency bands, through which the frequency of the ultrasonic vibrator can be matched with more different tools within a center frequency range.
Finally, different vibrators within the center frequency range vibrate many times.
[0007] In order to achieve the above objective, the present invention adopts a following technical scheme:
[0008] An ultrasonic vibrator with extendable frequency bands, including a plurality of tools different in shape and size, and further including an amplitude transformer, a plurality of piezoelectric ceramics and a preload bolt, where the amplitude transformer is composed of a front cover plate, a frustum, a flange plate and a rear cover plate, the front cover plate is arranged at a top of the frustum, the flange plate is arranged at a bottom of the frustum, and the rear cover plate is arranged at a bottom of the flange plate; and the plurality of tools different in shape and size are in threaded connection to the front cover plate, the plurality of piezoelectric ceramics sleeve the preload bolt in a penetrating manner, and the preload bolt is in threaded connection to the rear cover plate.
[0009] It needs to be explained that the front cover plate, the frustum, the flange plate and the rear cover plate are integrally formed.
[0010] It needs to be explained that 4 spiral grooves are formed in a surface of the frustum, LU503842 where a screw pitch of the spiral grooves is 80 mm, and the number of turns is 0.45.
[0011] It needs to be explained that 14 through holes with the radius being 5 mm are formed in a periphery of the flange plate.
[0012] It needs to be explained that internal threads are arranged on an inner side surface of the front cover plate.
[0013] It needs to be explained that internal threads are arranged on an inner side surface of the rear cover plate.
[0014] The present invention has the beneficial effects:
[0015] 1. The same vibrator can be matched with more tools different in shape and size, thereby reducing the number of the vibrators, and costs.
[0016] 2. Tool connectors are uniform in size, which facilitates installation by workers, shortens installation time and reduces installation errors,
[0017] 3. The edge breakage amount of the machined rock plates is small
[0018] FIG. 1 is a structural schematic diagram of the present invention;
[0019] FIG. 2 is a structural schematic diagram of an amplitude transformer in FIG. 1;
[0020] FIG. 3 is a sectional structure schematic diagram of the amplitude transformer in FIG. 2;
[0021] FIG. 4 is a structural schematic diagram of a tool of the present invention;
[0022] FIG. 5 is a structural schematic diagram of another tool of the present invention; and
[0023] FIG. 6 is a structural schematic diagram of another tool of the present invention.
[0024] The present invention is further described by combining figures below. It needs to be explained that embodiments give detailed implementations and specific operation processes based on the technical scheme, but a scope of protection of the present invention is not limited to the embodiments.
[0025] As shown in FIG. 1, FIG. 2 and FIG. 3, the present invention provides an ultrasonic vibrator with extendable frequency bands, including a plurality of tools 100 different in shape and size, and further including an amplitude transformer 1, a plurality of piezoelectric ceramics 2 and a preload bolt 3, where the amplitude transformer 1 is composed of a front cover plate
11, a frustum 12, a flange plate 13 and a rear cover plate 14. The front cover plate 11 is LU503842 arranged at a top of the frustum 12, the flange plate 13 is arranged at a bottom of the frustum 12, and the rear cover plate 14 is arranged at a bottom of the flange plate 13. The plurality of tools 100 different in shape and size are in threaded connection to the front cover plate 11, the plurality of piezoelectric ceramics 2 sleeve the preload bolt 3 in a penetrating manner, and the preload bolt 3 is in threaded connection to the rear cover plate 14.
[0026] Further, the front cover plate, the frustum, the flange plate and the rear cover plate of the present invention are integrally formed.
[0027] Further, as shown in FIG. 2 and FIG. 3, 4 spiral grooves 121 are formed in a surface of the frustum 12 of the present invention, where a screw pitch of the spiral grooves 121 is 80 mm, and the number of turns is 0.45.
[0028] Further, as shown in FIG. 2 and FIG. 3, 14 through holes 131 with the radius being 5 mm are formed in a periphery of the flange plate 13 of the present invention.
[0029] Further, internal threads are arranged on an inner side surface of the front cover plate of the present invention.
[0030] Further, internal threads are arranged on an inner side surface of the rear cover plate of the present invention.
[0031] It should be indicated that the plurality of tools different in shape and size in the present invention all have the same connector having external threads matched with the internal threads of the front cover plate.
[0032] Similarly, the preload bolt is a hexagonal preload bolt which is provided with internal threads matched with external threads of the rear cover plate.
[0033] Embodiment 1
[0034] An installation process of the present invention:
[0035] as shown in FIG. 4, FIG. 5 and FIG. 6, the connectors of the tools 100 different in shape and size are all of an external thread structure and are equal in size, the internal threads of the front cover plate of the amplitude transformer 1 are connected to the external threads of the tool connectors, the 4 piezoelectric ceramics sequentially sleeve the preload bolt in the penetrating manner, and the internal hexagonal preload bolt and the internal threads of the rear cover plate are connected by a wrench, thereby achieving a preload effect. When the tools 100 having the same connector but having different shapes and sizes are used, only the tools need to be replaced. Finally, the present invention is installed on an ultrasonic tool holder and, 503842 then installed on an ultrasonic spindle to be used for machining.
[0036] Embodiment 2
[0037] When the present invention is used: 5 [0038] copper sheets between the piezoelectric ceramics are firstly externally connected to an ultrasonic power supply to regulate voltage, the piezoelectric ceramics generate longitudinal vibration, that is, electric energy is converted into mechanical energy due to a piezoelectric effect, and since the amplitude transformer has a function of amplifying vibration and the spiral grooves in the amplitude transformer have a function of changing a vibration direction, part of longitudinal vibration generated by the piezoelectric ceramics is converted into torsional vibration which is amplified, and finally, the tools generate longitudinal vibration and part of torsional vibration. Accordingly, an effect that an edge breakage amount is reduced when the tools machine the rock plates is achieved.
[0039] Those skilled in the art can make other corresponding changes and transformations according to the above described technical scheme and concepts, while all the changes and transformations should fall within the scope of protection of claims of the present invention.
Claims (6)
1. An ultrasonic vibrator with extendable frequency bands, comprising a plurality of tools different in shape and size, characterized by further comprising an amplitude transformer, a plurality of piezoelectric ceramics and a preload bolt, wherein the amplitude transformer is composed of a front cover plate, a frustum, a flange plate and a rear cover plate, the front cover plate is arranged at a top of the frustum, the flange plate is arranged at a bottom of the frustum, and the rear cover plate is arranged at a bottom of the flange plate; and the plurality of tools different in shape and size are in threaded connection to the front cover plate, the plurality of piezoelectric ceramics sleeve the preload bolt in a penetrating manner, and the preload bolt is in threaded connection to the rear cover plate.
2. The ultrasonic vibrator with extendable frequency bands according to claim 1, characterized in that the front cover plate, the frustum, the flange plate and the rear cover plate are integrally formed.
3. The ultrasonic vibrator with extendable frequency bands according to claim 1 or 2, characterized in that 4 spiral grooves are formed in a surface of the frustum, wherein a screw pitch of the spiral grooves is 80 mm, and the number of turns is 0.45.
4, The ultrasonic vibrator with extendable frequency bands according to claim 1 or 2, characterized in that 14 through holes with the radius being 5 mm are formed in a periphery of the flange plate.
5. The ultrasonic vibrator with extendable frequency bands according to claim 1, characterized in that internal threads are arranged on an inner side surface of the front cover plate.
6. The ultrasonic vibrator with extendable frequency bands according to claim 1, characterized in that internal threads are arranged on an inner side surface of the rear cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU503842A LU503842B1 (en) | 2023-04-03 | 2023-04-03 | Ultrasonic vibrator with extendable frequency bands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU503842A LU503842B1 (en) | 2023-04-03 | 2023-04-03 | Ultrasonic vibrator with extendable frequency bands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU503842B1 true LU503842B1 (en) | 2023-10-05 |
Family
ID=88244327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU503842A LU503842B1 (en) | 2023-04-03 | 2023-04-03 | Ultrasonic vibrator with extendable frequency bands |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU503842B1 (en) |
-
2023
- 2023-04-03 LU LU503842A patent/LU503842B1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20231005 |
|
| PD | Change of ownership |
Owner name: GUANGDONG UNIVERSITY OF TECHNOLOGY; CN Free format text: FORMER OWNER: MONALISA GROUP CO.,LTD. Effective date: 20240205 Owner name: MONALISA GROUP CO.,LTD.; CN Free format text: FORMER OWNER: GUANGDONG UNIVERSITY OF TECHNOLOGY Effective date: 20240205 |