Amplitude-enhanced ultrasonic horn

Abstract

The present invention discloses an ultrasonic horn with enhanced amplitude, comprising a front thin rod, a rear thin rod, and a thick rod, the front thin rod and the rear thin rod having the same rod diameter. A middle reduced rod with a reduced diameter is connected between the front thin rod and the rear thin rod, and the ends of the middle reduced rod respectively have a first arc transition portion connected to the front thin rod and the rear thin rod. The thick rod has a larger diameter than the rear thin rod, and a second arc transition portion is connected between the thick rod and the rear thin rod. A flange is fixedly provided on the outside of the thick rod. The present invention aims to provide an ultrasonic horn that generates a larger amplitude under the condition of the same size, has a simple structure, and improves the processing efficiency of ultrasonic equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic machining, and in particular to an ultrasonic horn with enhanced amplitude. Background Art

[0002] Ultrasonic vibration-assisted processing is a processing method that uses a transducer to convert high-frequency electrical energy into high-frequency mechanical vibration energy, and applies it to the mechanical processing process to achieve mechanical removal and cavitation of the material. The ultrasonic horn is an important component of the ultrasonic system, which can increase the amplitude of the transducer and improve the mechanical quality factor. In practical applications, the processing environment often has certain restrictions on the size of the application equipment, which requires the ultrasonic vibrator to have a small size and to ensure that the ultrasonic high-frequency vibration output has sufficient amplitude, but it is very difficult to meet these requirements at the same time. Therefore, there is an urgent need for an ultrasonic horn that produces a larger amplitude under the same size, has a simple structure, and improves the processing efficiency of ultrasonic equipment. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an ultrasonic horn which has a larger amplitude under the same size, a simple structure and improves the processing efficiency of ultrasonic equipment.

[0004] To achieve the above object, the present invention is implemented through the following technical solutions:

[0005] An amplitude-enhanced ultrasonic horn comprises a front thin rod body, a rear thin rod body and a thick rod body arranged in sequence, wherein the front thin rod body and the rear thin rod body have the same rod diameter, a middle reduction rod body with a reduced diameter is connected between the front thin rod body and the rear thin rod body, and both ends of the middle reduction rod body respectively have a first arc transition portion connected to the front thin rod body and the rear thin rod body; the diameter of the thick rod body is larger than that of the rear thin rod body, a second arc transition portion is connected between the thick rod body and the rear thin rod body, and a flange is fixedly provided on the outside of the thick rod body.

[0006] Furthermore, a threaded hole is provided inside the thick rod body.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] The horn of the present invention is easy to process as a whole, has a simple structure, and is compact and light. Since a middle reduction rod body is provided between the front thin rod body and the rear thin rod body, the amplitude in the ultrasonic system can be efficiently amplified, and the amplitude is higher than that of horn rods of the same size, thereby effectively improving the processing efficiency of the ultrasonic equipment and improving the processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention;

[0010] Figure 2 Schematic diagram of the structure of other types of horn.

[0011] Reference numerals:

[0012] 1-front thin rod body, 2-middle reduced rod body, 3-rear thin rod body, 4-first arc transition part, 5-flange, 6-thick rod body, 7-second arc transition part. DETAILED DESCRIPTION

[0013] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0014] like Figure 1 As shown, an amplitude-enhanced ultrasonic horn comprises a front thin rod body 1, a rear thin rod body 3 and a thick rod body 6 arranged in sequence, wherein the front thin rod body 1 and the rear thin rod body 3 have the same rod diameter, a middle reduction rod body 2 with reduced diameter is connected between the front thin rod body 1 and the rear thin rod body 3, and both ends of the middle reduction rod body 2 respectively have a first arc transition portion 4 connected to the front thin rod body 1 and the rear thin rod body 3; the diameter of the thick rod body 6 is larger than that of the rear thin rod body 3, a second arc transition portion 7 is connected between the thick rod body 6 and the rear thin rod body 3, and a flange 5 is fixedly provided on the outside of the thick rod body 6.

[0015] The thick rod 6 is provided with a threaded hole inside for connecting with the connecting screw of the ultrasonic vibrator and other components. The flange on the thick rod 6 is used to connect the horn to an external device.

[0016] The thick rod body 6 in the present invention is transitionally connected to the rear thin rod body 3 through the second arc transition portion 7, and the two ends of the middle reduction rod body 2 are transitionally connected to the front thin rod body 1 and the rear thin rod body 3 through the first arc transition portion 4. Compared with the direct diameter change of the amplitude transformer, the use of arc transition can solve the problem of stress concentration at the diameter change. Moreover, the middle reduction rod body 2 can efficiently amplify the amplitude in the ultrasonic system. This is because the final amplitude output is the amplitude of each rod cross-section part, which is obtained by superimposing the amplitude of the previous rod cross-section. Compared with the superposition of ordinary amplitude transformers under a single diameter, the superposition of ultrasonic energy propagation of the improved amplitude transformer under two different diameters can produce a higher amplitude superposition effect. Without changing the maximum external dimensions of the amplitude transformer, the amplitude is higher than that of amplitude transformers of the same size. This improves the processing efficiency of ultrasonic auxiliary equipment and reduces processing force and processing damage.

[0017] like Figure 2 As shown, the middle reduction rod body 2 can be adapted to a variety of amplitude transformers, including cylindrical, stepped, conical, exponential, catenary, etc. The required amplitude transformer type can be selected for amplitude enhancement during specific applications, and has a wide range of adaptability.

[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ultrasonic horn with enhanced amplitude, characterized by: The invention comprises a front thin rod body (1), a rear thin rod body (3) and a thick rod body (6) which are arranged in sequence. The rod body diameters of the front thin rod body (1) and the rear thin rod body (3) are the same. A middle reduced rod body (2) with a reduced diameter is connected between the front thin rod body (1) and the rear thin rod body (3). Both ends of the middle reduced rod body (2) respectively have a first arc transition portion (4) connected to the front thin rod body (1) and the rear thin rod body (3). The diameter of the thick rod body (6) is larger than that of the rear thin rod body (3). A second arc transition portion (7) is connected between the thick rod body (6) and the rear thin rod body (3). A flange (5) is fixedly provided on the outside of the thick rod body (6).

2. The ultrasonic horn with enhanced amplitude according to claim 1, characterized in that: A threaded hole is provided inside the thick rod body (6).

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