CN211219132U

CN211219132U - Ultrasonic welding head

Info

Publication number: CN211219132U
Application number: CN201922265058.XU
Authority: CN
Inventors: 李振旭
Original assignee: Wuxi Nicle Ultrasonic Equipment Co ltd
Current assignee: Wuxi Nicle Ultrasonic Equipment Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-08-11
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses an ultrasonic wave bonding tool, it includes the bonding tool body, and the bottom of bonding tool body is the face of weld, and the middle part of face of weld is protruding to both ends smooth transition, the top and the transducer assembly of bonding tool body, and seted up the fillet recess on the face of assembly for reduce vertical amplitude error, the both ends of face of weld are protruding for the terminal surface of bonding tool body, and through cambered surface transitional coupling, set up the slot that the level link up on the bonding tool body, be used for reducing horizontal amplitude error. The ultrasonic welding head is designed with special shape and structure, and corrects vertical amplitude and horizontal amplitude, so that amplitude error on the welding surface of the welding head is small, welding precision is ensured, and the ultrasonic welding head is suitable for some precise instrument welding occasions.

Description

Ultrasonic welding head

Technical Field

The utility model relates to an ultrasonic welding equipment field especially relates to an ultrasonic bonding tool.

Background

Ultrasonic welding is performed by transmitting a high-frequency vibration wave to the surfaces of two objects to be welded, and rubbing the surfaces of the two objects against each other under pressure to form a fusion between the molecular layers. Specifically, high frequency electrical energy is converted into mechanical motion of equal frequency by a transducer, and vibrational energy is transferred to the horn and further to the joint of the work pieces to be welded, where it is frictionally converted into thermal energy to melt the plastic.

The transducer and the welding head are main components, and in the actual use process, after the transducer and the welding head are connected by screws, the situation that the amplitude of the center part and the amplitude of the edge of the welding head are uneven is very easy to occur, and the error between the center amplitude and the edge amplitude can reach more than 20 micrometers by taking a block-shaped welding surface as an example, so that the welding quality of a finished product is influenced.

SUMMERY OF THE UTILITY MODEL

Based on above, an object of the utility model is to provide an ultrasonic bonding tool to the inhomogeneous condition of the amplitude at bonding tool ubiquitous central part and edge, optimizes bonding tool structure, reduces the amplitude error, improves welding quality.

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

the utility model provides an ultrasonic bonding tool, its includes the bonding tool body, and the bottom of bonding tool body is the face of weld, and the middle part of face of weld is protruding to both ends smooth transition, the top and the transducer assembly of bonding tool body, and seted up the fillet recess on the assembly face for reduce vertical amplitude error, the both ends of face of weld are protruding for the terminal surface of bonding tool body, and through cambered surface transitional coupling, set up the slot that the level link up on the bonding tool body, are used for reducing horizontal amplitude error.

In particular, the welding surface is a slope inclined to one side.

In particular, the welding surface is a circular arc surface symmetrical about the central axis.

In particular, the smooth transition at the bottom of the horn body is also the weld face.

Particularly, the welding head body is made of aluminum alloy, and the surface of the welding head body is plated with nickel.

To sum up, the beneficial effects of the utility model are that, compared with the prior art, the ultrasonic bonding tool has designed special shape and structure, has revised vertical amplitude and horizontal amplitude for the amplitude error is little on the bonding tool face of weld, ensures welding precision, thereby is applicable to some precision instruments and meters welding occasion.

Drawings

Fig. 1 is a schematic structural diagram of an ultrasonic horn according to an embodiment of the present invention;

fig. 2 is an elevation view of an ultrasonic horn provided in accordance with an embodiment of the present invention;

fig. 3 is a side view of an ultrasonic horn according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 3, the present embodiment provides an ultrasonic bonding tool, which includes a bonding tool body 1, wherein the bonding tool body 1 is made of an aluminum alloy material and has a nickel-plated surface.

The bottom of the welding head body 1 is a welding surface 2, the middle part of the welding surface 2 is convex, and the welding surface is in smooth transition towards two end parts, in the embodiment, the welding surface 2 is an inclined plane inclined towards one side and is an arc surface symmetrical with a central axis, and the smooth transition part can also be used as the welding surface 2. Thereby guaranteeing the working precision of the welding surface 2 and being suitable for special working conditions such as curved surfaces, narrow space and the like.

The top of the welding head body 1 is assembled with the transducer, and a fillet groove 3 is formed in the assembling surface and used for reducing vertical amplitude errors.

The two end parts of the welding surface 2 are raised relative to the end surface of the welding head body 1 and are in transition connection through the cambered surfaces 4, so that the amplitude errors of the two end parts are reduced.

The welding head body 1 is provided with a groove 5 which is horizontally communicated and used for reducing transverse amplitude errors.

In conclusion, the ultrasonic welding head is designed with a special shape and structure, and corrects the vertical amplitude and the horizontal amplitude, so that the amplitude error on the welding surface of the welding head is small, the welding precision is ensured, and the ultrasonic welding head is suitable for some precise instrument and meter welding occasions.

The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an ultrasonic bonding tool, its characterized in that, includes the bonding tool body, the bottom of bonding tool body is the face of weld, the middle part of face of weld is protruding to both ends smooth transition, the top and the transducer assembly of bonding tool body, and seted up the fillet recess on the assembly face for reduce vertical amplitude error, the both ends of face of weld are protruding for the terminal surface of bonding tool body, and pass through cambered surface transitional coupling, set up the slot that the level link up on the bonding tool body for reduce horizontal amplitude error.

2. The ultrasonic horn of claim 1, wherein: the welding surface is an inclined surface inclined to one side.

3. The ultrasonic horn of claim 1, wherein: the welding surface is an arc surface symmetrical with the central axis.

4. The ultrasonic horn of claim 1, wherein: the smooth transition portion of the bottom of the welding head body is also a welding surface.

5. The ultrasonic horn of claim 1, wherein: the welding head body is made of aluminum alloy, and nickel is plated on the surface of the welding head body.