CN210449769U

CN210449769U - Ultrasonic vibrator suitable for thermal aging forming

Info

Publication number: CN210449769U
Application number: CN201921405713.0U
Authority: CN
Inventors: 左都全; 张远凤; 徐光强; 杨洋
Original assignee: Chongqing Three Gorges University
Current assignee: Chongqing Three Gorges University
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-05-05
Anticipated expiration: 2029-08-28

Abstract

The utility model discloses an ultrasonic vibrator suitable for thermal ageing takes shape, including transducer and amplitude transformer, its characterized in that: one end of the transducer is connected with an ultrasonic wave-generating power supply through a lead, and the other end of the transducer is rigidly connected with an amplitude transformer; the amplitude transformer is divided into a primary amplitude transformer and a secondary amplitude transformer, the input end of the primary amplitude transformer is tightly attached to the output end of the transducer, the flange is arranged at the node of the primary amplitude transformer, and the vibrator is fixed on the bracket through an annular groove beside the flange; the utility model discloses a design a compound amplitude transformer, not only be favorable to enlargiing the vibration amplitude of vibrator transducer radiating surface, be favorable to realizing the mould rigid connection in room temperature vibrator and the hot ageing environment of high temperature moreover, realize the impedance matching between transducer and mould well.

Description

Ultrasonic vibrator suitable for thermal aging forming

Technical Field

The utility model relates to an ultrasonic wave technical field, concretely relates to ultrasonic vibrator suitable for thermal ageing takes shape.

Background

An Ultrasonic horn (UAT), also called Ultrasonic shift lever or Ultrasonic concentrator, is an important component of an Ultrasonic vibration system, and has the functions of amplifying the particle displacement or speed of mechanical vibration and concentrating Ultrasonic energy on a smaller area, which is called energy concentrating effect for short.

Current ultrasonic horns are typically both single horns and composite primary horns. The single amplitude transformer can be classified according to the shape of the bus, and can be divided into types of steps, indexes, catenary, cones, gausses, fourier, cosines and the like, while the composite primary amplitude transformer is an integral structure formed by combining two single amplitude transformers, and has the advantage that the amplitude of mechanical vibration is further increased, so that the composite primary amplitude transformer is characterized by being widely applied to the fields of ultrasonic processing, ultrasonic welding, ultrasonic cell destruction, ultrasonic metal forming, ultrasonic medical treatment and the like. However, the composite primary horn has several disadvantages: 1. the vibration amplitude of the radiation surface is limited, the vibration amplitude range of the radiation surface of the prior first-level amplitude transformer is usually 20-60 microns, and the vibration amplitude range is not enough to fully release residual stress in small and medium-sized precision parts, high-rigidity parts and the like; 2. the applicability is poor and the destructiveness is large at high temperature, and the output end of the first-stage amplitude transformer is easy to crack and damage under the high-temperature condition; 3. the impedance matching capability of the plate in the thermal ageing environment is poor; therefore, it is important to try to further amplify the mechanical amplitude of the vibration-formed plate in the thermal aging environment and match the impedance by using two-stage amplitude variation.

Disclosure of Invention

The utility model aims at providing an ultrasonic vibrator suitable for thermal ageing takes shape, the amplitude transformer of this vibrator can not only realize the output of the big vibration amplitude of radiant surface, the residual stress in the abundant release material, but also be equipped with the secondary amplitude transformer of unique material, be favorable to realizing the mould rigid connection in room temperature vibrator and the high temperature thermal ageing environment, adjust the impedance matching between transducer and mould well, it is big to have vibration amplitude, the impedance matching ability is strong, advantages such as resonant effect is good.

In order to realize the purpose of the utility model, the invention provides the technical scheme that.

An ultrasonic vibrator suitable for thermal ageing forming comprises a transducer and an amplitude transformer, and is characterized in that: one end of the transducer is connected with an ultrasonic wave generating power supply through a lead, and the other end of the transducer is rigidly connected with an amplitude transformer through a screw; the amplitude transformer is divided into a primary amplitude transformer and a secondary amplitude transformer, the input end of the primary amplitude transformer is tightly attached to the output end of the transducer, the flange is arranged at the node of the primary amplitude transformer, and the vibrator is fixed on the support through an annular groove beside the flange.

Preferably, the first amplitude transformer and the second amplitude transformer are respectively provided with a first hole and a second hole, and the first hole is connected with the second hole of the second amplitude transformer through a screw, so that the right end face of the first amplitude transformer is tightly attached to the left end face of the second amplitude transformer; the first-stage amplitude transformer is provided with a curved surface which is an exponential function.

Preferably, the secondary amplitude transformer is Ti-6Al-4V titanium alloy, the secondary amplitude transformer is a bar rolled under the heating condition of 940 ℃, the diameter range of the bar is 8-12 mm, the surface roughness is not lower than the value of 3.2um, and the impedance matching between the transducer and the die can be easily realized; the secondary amplitude transformer is rigidly connected with the die in the thermal aging environment, and the ultrasonic waves can be easily transmitted to the die in the high-temperature furnace from the outside of the room-temperature furnace in the form of longitudinal waves.

Preferably, the transducer and the first-stage amplitude transformer are respectively provided with a first surface and a second surface; the symmetrical positions of the flange plates are respectively provided with a U-shaped groove, so that the transducer and the amplitude transformer can be easily disassembled through the first clamping surface and the second clamping surface or the first clamping surface and the U-shaped groove during disassembly, and the whole disassembly process is quick and convenient.

Compared with the prior art, the beneficial effects of the utility model are that: the two-stage amplitude transformer is beneficial to amplifying the vibration amplitude of the radiation surface of the vibrator transducer and fully releasing residual stress in materials, is also provided with the two-stage amplitude transformer made of unique materials, is beneficial to realizing rigid connection of the room-temperature vibrator and a mold in a high-temperature thermal aging environment, well adjusts the impedance matching between the transducer and the mold, and has the advantages of large vibration amplitude, strong impedance matching capability, good resonance effect and the like.

Drawings

Fig. 1 is a working state diagram of the present invention.

Fig. 2 is a schematic structural view of the ultrasonic vibrator of the present invention.

Fig. 3 is a two-dimensional exploded view of the ultrasonic vibrator of the present invention.

Fig. 4 is a cross-sectional view at a-a of fig. 3.

In the figure: 1-ultrasonic wave power supply; 100-a horn; 2-a transducer; 2.1-face one; 3-a first-stage amplitude transformer; 3.1-flour two; 3.2-flange plate; 3.21-U-shaped groove; 3.3-curved surface; 3.14-hole one; 4-a scaffold; 5-a second-level amplitude transformer; 5.1-hole two; 6-molding; 7-an annular groove; 8-screw.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Example (b): referring to fig. 1 to 4, the embodiment of the present invention includes a transducer 2 and an amplitude transformer 100, wherein one end of the transducer 2 is connected to an ultrasonic wave power supply 1 through a wire, so as to realize conversion and transmission of an electrical signal and an ultrasonic wave, and the other end is rigidly connected to the amplitude transformer 100 through a screw 8; the amplitude transformer 100 is divided into a first-stage amplitude transformer 3 and a second-stage amplitude transformer 5, the input end of the first-stage amplitude transformer 3 is tightly attached to the output end of the transducer 2, the flange 3.2 is arranged at the node of the first-stage amplitude transformer 3, the node is arranged at the midpoint of the first-stage amplitude transformer 3, and the vibrator is fixed on the support 4 through an annular groove 7 beside the flange 3.2.

In the embodiment, the primary amplitude transformer 3 and the secondary amplitude transformer 5 are respectively provided with a first hole 3.4 and a second hole 5.1, and the first hole 3.4 is connected with the second hole 5.1 of the secondary amplitude transformer 5 through a screw 8, so that the right end surface of the primary amplitude transformer 3 is tightly attached to the left end surface of the secondary amplitude transformer 5; the first-stage amplitude transformer 3 is provided with a curved surface 3.3, and the curved surface 3.3 is an exponential function; the secondary horn 5 is vertically welded with a mould 6 in a thermal ageing environment, and ultrasonic waves are transmitted to the mould 6 in a high-temperature furnace from the outside of the room-temperature furnace in the form of longitudinal waves.

The transducer 2 and the first-stage amplitude transformer 3 in the embodiment are respectively provided with a first surface 2.1 and a second surface 3.1; the U-shaped grooves 3.21 are respectively arranged at the symmetrical positions of the flange 3.2, so that the transducer 2 and the amplitude transformer can be easily disassembled 100 through the first clamping surface 2.1 and the second clamping surface 3.1 or the first clamping surface 2.1 and the U-shaped grooves 3.21 during disassembly, and the whole disassembly process is quick and convenient.

The diameters of the left end and the right end of the primary amplitude transformer 3 in the embodiment are respectively 60mm and 15mm, the secondary amplitude transformer 5 is a Ti-6Al-4V titanium alloy bar with the diameter of 8mm, the surface roughness is 3.2um, the amplitude amplification coefficient of the primary amplitude transformer 3 is 4 times, the amplitude amplification coefficient of the secondary amplitude transformer 5 is 1.2 times, and the amplitude amplification coefficient transmitted to the die (6) is 4.8 times.

The foregoing is illustrative of the present invention and is not to be construed as limiting thereof. The person skilled in the art can make changes and modifications without departing from the scope of the invention, and shall fall within the protection scope of the invention.

Claims

1. An ultrasonic vibrator suitable for thermal age forming comprising a transducer (2) and a horn (100), characterized in that: one end of the transducer (2) is connected with the ultrasonic wave power supply (1) through a lead, and the other end of the transducer is rigidly connected with the amplitude transformer (100); the amplitude transformer (100) is divided into a primary amplitude transformer (3) and a secondary amplitude transformer (5), the input end of the primary amplitude transformer (3) is tightly attached to the output end of the transducer (2), the flange (3.2) is arranged at the node of the primary amplitude transformer (3), and the vibrator is fixed on the support (4) through an annular groove (7) beside the flange (3.2).

2. An ultrasonic vibrator suitable for thermal age forming according to claim 1, wherein: the primary amplitude transformer (3) and the secondary amplitude transformer (5) are respectively provided with a first hole (3.4) and a second hole (5.1), and the first hole (3.4) is connected with the second hole (5.1) of the secondary amplitude transformer (5) through a screw (8), so that the right end face of the primary amplitude transformer (3) is tightly attached to the left end face of the secondary amplitude transformer (5); the primary amplitude transformer (3) is also provided with a curved surface (3.3), and the curved surface (3.3) is an exponential function.

3. An ultrasonic vibrator adapted to be used for thermal aging forming according to claim 1 or 2, wherein: the secondary amplitude transformer (5) is Ti-6Al-4V titanium alloy, and the secondary amplitude transformer (5) is rigidly connected with the die (6) in a thermal aging environment, so that ultrasonic waves are transmitted to the die (6) in a high-temperature furnace from the outside of the room-temperature furnace in a longitudinal wave mode.

4. An ultrasonic vibrator suitable for thermal age forming according to claim 1, wherein: the energy converter (2) and the primary amplitude transformer (3) are respectively provided with a first surface (2.1) and a second surface (3.1); the symmetrical positions of the flange plates (3.2) are respectively provided with a U-shaped groove (3.21), and when the energy converter is disassembled, the energy converter (2) and the amplitude transformer (100) can be easily disassembled through the first clamping surface (2.1) and the second clamping surface (3.1) or the first clamping surface (2.1) and the U-shaped groove (3.21).