Amplitude modulator structure for ultrasonic waves

By designing amplitude modulator structures symmetrically positioned on both sides of the welding head in the ultrasonic welding equipment, the amplitude of the welding head is enhanced, solving the problem of low welding efficiency and realizing high-efficiency welding of large workpieces.

CN223629661UActive Publication Date: 2025-12-05DONG HO ULTRASONIC MASCH CO LTD
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Patent Information

Application Number
CN202422867227.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-12-05
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

In existing technologies, the welding head amplitude of ultrasonic welding equipment is insufficient, resulting in low welding efficiency and poor welding quality, especially when welding large workpieces, which requires multiple operations.

Method used

Design an amplitude modulator structure for ultrasonic welding, employing two amplitude modulators symmetrically positioned on both sides of the welding head. Each amplitude modulator has multiple input sections and is connected to a transducer, enhancing the amplitude of the welding head through the concentrated transmission of mechanical vibration.

Benefits of technology

It improves welding efficiency, enabling the welding of large workpieces to be completed in one go, and enhances welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an amplitude modulator structure for ultrasonic waves, which comprises a welding head provided with a plurality of welding surfaces; the two amplitude modulators are arranged on the two sides of the welding head respectively, and each amplitude modulator is provided with at least two input parts. Therefore, the input portions of the two amplitude modulators can be respectively provided with a transducer, mechanical vibration provided by the transducers is transmitted to the two amplitude modulators through the input portions, then the two amplitude modulators transmit the mechanical vibration to the welding head in a concentrated mode, the amplitude of the welding head is enhanced, and the purpose of improving welding efficiency is achieved.
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Description

Technical Field

[0001] This utility model relates to an amplitude modulator structure, and more particularly to an amplitude modulator structure for ultrasound. Background Technology

[0002] For example, a "welding head structure" in Taiwan Patent No. M611684 includes a transducer; an amplitude modulator connected to one side of the transducer; a cross-shaped conductive mold with one top end connected to the amplitude modulator; and at least one welding head, each welding head being disposed at the remaining top ends of the cross-shaped conductive mold.

[0003] However, because of Taiwan Patent No. M611684 Figure 1 In this case, there is only one amplitude modulator on one side of the welding head, and the amplitude modulator has a transducer. Therefore, when welding large workpieces, the amplitude of the welding head may not be enough to complete the welding operation in one go, and it needs to be carried out in multiple times, resulting in low welding efficiency and poor welding quality.

[0004] Therefore, how to improve upon the aforementioned deficiencies is the technical challenge that the creators of this case sought to overcome. Utility Model Content

[0005] In view of the conventional design, the purpose of this invention is to solve and improve the problems and deficiencies of the conventional design by providing an amplitude modulator structure for ultrasound.

[0006] This utility model provides an amplitude modulator structure for ultrasound, comprising: a welding head having a plurality of welding surfaces; and two amplitude modulators respectively disposed on both sides of the welding head, and each of the two amplitude modulators having at least two input sections.

[0007] The two amplitude modulators are identical in shape and are symmetrically located on both sides of the welding head.

[0008] The input section of each of the two amplitude modulators is equipped with a transducer.

[0009] Therefore, the input sections of the two amplitude modulators can each be equipped with a transducer. The mechanical vibration provided by the transducer is transmitted to the two amplitude modulators through each input section, and then the two amplitude modulators respectively concentrate the mechanical vibration and transmit it to the welding head, thereby enhancing the amplitude of the welding head and achieving the purpose of improving welding efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the first embodiment of the present utility model.

[0011] Figure 2 This is a schematic diagram of the first embodiment of the present invention, which includes a transducer.

[0012] Figure 3 is a schematic view of the second embodiment of the present application.

[0013] Figure 4 is an exploded view of the second embodiment of the present application.

[0014] Figure 5 is a front view of the amplitude modulator in the second embodiment of the present application.

[0015] Figure 6 is a schematic view of the transducer provided in the second embodiment of the present application.

[0016] Figure 7 is a schematic view of the transducer provided in the second embodiment of the present application.

[0017] Figure 8 is a schematic view of the third embodiment of the present application.

[0018] Figure 9 is a front view of the amplitude modulator in the third embodiment of the present application.

[0019] BRIEF DESCRIPTION OF DRAWINGS 1 - welding head; 11 - welding surface; 2 - amplitude modulator; 21 - input portion; 3 - transducer. DETAILED DESCRIPTION

[0020] To make other characteristic contents and advantages of the present application and the effects achieved thereby more apparent, the present application will be described in detail below in conjunction with the drawings:

[0021] Referring to Figure 1 and Figure 2 , the present application provides an amplitude modulator structure for ultrasonic waves, which first embodiment comprises:

[0022] a welding head 1, which is provided with a plurality of welding surfaces 11. The welding head 1 can have a cross-shaped appearance.

[0023] two amplitude modulators 2, which are respectively arranged on both sides of the welding head 1 and are respectively provided with at least two input portions 21. The two amplitude modulators 2 are a component of an ultrasonic welding machine, and their main function is to increase the amplitude of mechanical vibration through different shapes.

[0024] Among them, the two amplitude modulators 2 have the same shape and are respectively symmetrically arranged on both sides of the welding head 1. The input portions 21 of the two amplitude modulators 2 are respectively provided with a transducer 3. The transducer 3 can be a piezoelectric ceramic transducer, which is used to provide a high-frequency mechanical vibration.

[0025] In Figure 1 and Figure 2 , the number of input parts 21 of the amplitude modulator 2 can be four, and the number of transducers 3 is four.

[0026] Referring to Figure 3 , Figure 4 , Figure 5 and Figure 6 , the number of input parts 21 of the amplitude modulator 2 can be adjusted according to the implementation requirements, for example, eight, and the number of transducers 3 is eight.

[0027] Referring to Figure 5 and Figure 7 , the eight transducers 3 respectively provide high-frequency mechanical vibrations, and the mechanical vibrations are transmitted to the two amplitude modulators 2 through the input parts 21 connected to each transducer 3, and the two amplitude modulators 2 respectively concentrate the mechanical vibrations to the welding head 1, so that the welding surface 11 of the welding head 1 can be used to weld the workpiece. Because there are a total of eight transducers 3 to provide mechanical vibrations, the amplitude of the welding head 1 can be effectively enhanced, and it is especially suitable for large workpieces because the amplitude of the welding head 1 is larger, and the welding operation of the large workpiece can be completed at one time.

[0028] Referring to Figure 8 and Figure 9 , the shapes of the two amplitude modulators 2 of the third embodiment are different from those of the first and second embodiments. The shapes of the two amplitude modulators 2 of the first and second embodiments are generally fork-shaped, and the shapes of the two amplitude modulators 2 of the third embodiment are generally block-shaped. The shapes of the two amplitude modulators 2 can be adjusted according to the implementation requirements.

[0029] Therefore, the input parts 21 of the two amplitude modulators 2 can be respectively provided with the transducers 3, the mechanical vibrations provided by the transducers 3 are transmitted to the two amplitude modulators 2 through each input part 21, and the two amplitude modulators 2 respectively concentrate the mechanical vibrations to the welding head 1, thereby enhancing the amplitude of the welding head 1 and achieving the purpose of improving the welding efficiency.

[0030] The above discussion is only for the preferred embodiments of the present application, and is not intended to limit the scope of the present application; therefore, equivalent shapes, structures or combinations made without departing from the spirit and scope of the present application should be covered within the protection scope of the present application.

Claims

1. An amplitude modulator structure for ultrasound waves, characterized by, Comprising: a welding head, the welding head being provided with a plurality of welding surfaces; and two amplitude modulators, the two amplitude modulators being respectively arranged at two sides of the welding head, and the two amplitude modulators being respectively provided with at least two input portions.

2. The amplitude modulator structure for ultrasound of claim 1, wherein: The two amplitude modulators are identical in shape and are respectively symmetrically arranged at the two sides of the welding head.

3. The amplitude modulator structure for ultrasonic waves according to claim 1, wherein: The two amplitude modulators are respectively provided with a transducer.