CN215966851U - Ultrasonic three-in-one set and ultrasonic welding head - Google Patents
Ultrasonic three-in-one set and ultrasonic welding head Download PDFInfo
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- CN215966851U CN215966851U CN202122343642.XU CN202122343642U CN215966851U CN 215966851 U CN215966851 U CN 215966851U CN 202122343642 U CN202122343642 U CN 202122343642U CN 215966851 U CN215966851 U CN 215966851U
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Abstract
The utility model aims to provide an ultrasonic three-in-one set and an ultrasonic welding head, which can realize simultaneous welding of double points and multiple points. The ultrasonic welding head is used for ultrasonic welding, the ultrasonic welding head is in contact with a workpiece to be welded through a working part in the ultrasonic welding process, and the ultrasonic welding head comprises a swing rod, an acoustic rod and a connecting part. The swing rod is provided with a first end and a second end, and the second end is provided with a working part; one end of the acoustic rod is connected with the swing rod between the first end and the second end; the connecting part is arranged at the first end; wherein, the second end is provided with at least one cell body, and the cell body is at least two with the work portion, thereby adopts this ultrasonic bonding head structure can effectively reduce the problem that current two-spot or multiple spot welding head exists and reduce the rosin joint phenomenon.
Description
Technical Field
The utility model relates to the field of ultrasonic welding, in particular to an ultrasonic three-in-one set and an ultrasonic welding head.
Background
The ultrasonic welding technique is a welding process in which high-frequency vibration waves are transmitted to the surfaces of two objects to be welded, and the surfaces of the two objects are rubbed against each other under pressure to form fusion between molecular layers, and is widely used in the field of manufacturing, for example, lithium batteries for automobiles.
In order to improve the welding efficiency, the existing ultrasonic welding process has many improvements on double welding heads and multiple welding heads. The utility model of patent application No. 201911345022.0 provides an ultrasonic horn wherein a horn having two horn units is disclosed, the horn further having a joint extending toward one side of the horn units, and a horn clamping device clamps the horn, the joint of the horn being pressed by a pressing head during welding.
However, because the load is very large during the double-point or multi-point welding, the pressure generally required is also very large, the welding heads of the existing double welding heads and multi-welding heads are seriously deformed under the large pressure, the welding mark is not uniform, meanwhile, when the distance of the double welding mark or the multi-welding mark is far away, the gain of the welding head is difficult to be made large, the power is low during the welding, the false welding is easy to occur, the gain of the welding head is increased by thinning or narrowing the front half part of the welding head, the rigidity of the welding head is further reduced, the stress deformation condition is worsened, the design of the welding head has certain limitation due to the above conditions, and the desired welding mark is often difficult to obtain.
SUMMERY OF THE UTILITY MODEL
One object of the present invention is to provide an ultrasonic horn that enables simultaneous welding of two or more points.
It is another object of the present invention to provide an ultrasonic triad including an ultrasonic horn as described above.
To achieve the above object, an ultrasonic horn for ultrasonic welding, which is in contact with a workpiece to be welded through a working portion during ultrasonic welding, includes:
the swing rod is provided with a first end and a second end, and the second end is provided with the working part;
an acoustic rod having one end connected to the pendulum rod between the first end and the second end; and
a connecting portion disposed at the first end;
wherein, the second end is provided with at least one cell body, the cell body will the work portion is at least two.
In one or more embodiments, the swing link has a thickness direction, and the groove is penetratingly opened at the second end to divide the working portion into at least two.
In one or more embodiments, the pendulum rod has a thickness direction and is divided by the acoustic rod into an upper pendulum rod and a lower pendulum rod, the lower pendulum rod having the second end;
wherein the lower rocker has a first section near the acoustic bar and a second section near the second end, the first section having a first thickness and the second section having a second thickness along the thickness direction, the first thickness being different from the second thickness.
In one or more embodiments, the pendulum rod has a width direction and is divided by the acoustic rod into an upper pendulum rod and a lower pendulum rod, the lower pendulum rod having the second end;
the lower swing rod is provided with a body section close to the acoustic rod and a working section close to the second end, the body section is provided with a first width along the width direction, the working section is provided with a second width, the second width is larger than the first width, and an arc transition section is arranged at the joint of the body section and the working section.
In one or more embodiments, the acoustic bar has a third width along the width direction, the third width having a width matching the second width.
In one or more embodiments, the swing link is axially symmetric in the width direction.
In one or more embodiments, the acoustic rod has a variable cross-sectional structure along an axial direction thereof.
In one or more embodiments, the pendulum bar is integral with the acoustic bar.
An ultrasonic triad for achieving the aforementioned another object includes a transducer, an amplitude modulator, and an ultrasonic horn as previously described.
The advanced effects of the utility model include one or a combination of the following:
in the ultrasonic welding head, the groove body is arranged at the second end of the swing rod, so that the working parts of the ultrasonic welding head are two or more, the two-point or multi-point welding can be realized through two or more working parts in the ultrasonic welding process, and the welding efficiency is improved. Simultaneously, because the bonding tool is the wedge-bar structure, the seal position of welding under the high pressure warp very low, even if with bonding tool body front end work portion attenuation or narrow in order to improve the bonding tool gain, also can not make bonding tool atress warp and strengthen, consequently, this adoption this ultrasonic bonding head structure can effectively reduce the problem that current two-spot or multiple spot welding head exists thereby reduces the rosin joint phenomenon.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 illustrates a front perspective view of an ultrasonic horn in accordance with an embodiment;
FIG. 2 illustrates a side perspective view of an ultrasonic horn in accordance with an embodiment;
FIG. 3 illustrates a side schematic view of an ultrasonic horn in accordance with an embodiment;
FIG. 4 shows a schematic perspective view of an ultrasonic horn in accordance with another embodiment;
FIG. 5 shows a schematic perspective view of an ultrasonic horn in accordance with yet another embodiment;
fig. 6 shows a perspective view of an ultrasonic horn according to yet another embodiment.
Detailed Description
The following discloses many different embodiments or examples for implementing the subject technology described. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and are not intended to limit the scope of the present disclosure.
To improve the efficiency of ultrasonic welding, one or more of the following embodiments provide an ultrasonic horn, such as fig. 1 illustrates a front perspective view of an embodiment of an ultrasonic horn, fig. 2 illustrates a side perspective view of an embodiment of an ultrasonic horn, and fig. 3 illustrates a side perspective view of an embodiment of an ultrasonic horn. Reference numerals and/or letters may be repeated among the various examples in this disclosure. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It is noted that these and other figures which follow are merely exemplary and not drawn to scale and should not be considered as limiting the scope of the utility model as it is actually claimed.
It is understood that the present application uses specific words to describe embodiments of the application, such as "one embodiment," "an embodiment," and/or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.
The ultrasonic welding head is used for ultrasonic welding, the welding head is integrally of a wedge rod structure and is provided with a working part 1, and the working part 1 is a part of the ultrasonic welding head, which is contacted with a workpiece to be welded in the ultrasonic welding process. The ultrasonic horn includes a pendulum rod 2, an acoustic rod 3, and a connecting portion 4.
The swing link 2 has a first end 21 and a second end 22, and the working portion 1 is located at the second end 22 of the swing link 21. It will be appreciated that certain features, structures, or characteristics of one or more embodiments of the application may be combined as suitable. In addition, the terms "first", "second", and the like are used to define the components, and are used only for convenience of distinguishing the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, the scope of the present application is not to be construed as being limited.
One end 31 of the acoustic rod 3 is connected with the swing link 2, the connection position is located between the first end 21 and the second end 22 of the swing link, and the connecting part 4 is arranged at the first end of the swing link 2. In the ultrasonic welding process, ultrasonic vibration is transmitted to the oscillating bar 2 along the axial direction of the acoustic rod 3, the connecting part 4 is connected with a clamping mechanism in an ultrasonic welding machine and used for applying pressure to the oscillating bar, and the pressure is transmitted to the surface of a workpiece to be welded through the working part 1.
In one or more embodiments shown in fig. 1 to 3, the groove body 20 is one groove body provided at the second end 22 of the swing rod 2, so that the working portion 1 of the ultrasonic welding head is divided into two working portions, which are shown as a first working portion 11 and a second working portion 12 in the figures, thereby realizing double-point welding through the first working portion 11 and the second working portion 12 in the ultrasonic welding process, and improving the welding efficiency. Simultaneously, because connecting portion 4 and work portion 1 are located the both ends of pendulum rod 2 respectively, the bonding tool is whole to be wedge-bar structure, and the welding seal position that work portion 1 formed under the high pressure warp very low, even if with bonding tool body front end work portion attenuation or narrow in order to improve the bonding tool gain, also can not make bonding tool atress warp and strengthen, consequently, thereby this ultrasonic welding head structure of this adoption can effectively reduce the problem that current two-point or multiple spot welding head exists and reduce the rosin joint phenomenon.
While one embodiment of an ultrasonic horn is described above, in other embodiments of an ultrasonic horn, the ultrasonic horn may have more details than the embodiments described above in many respects, and at least some of these details may vary widely. At least some of these details and variations are described below in several embodiments.
In one embodiment of the ultrasonic horn, the pendulum rod 2 has a thickness direction w, and the slot 20 opens through the second end 22, as in the embodiment shown in fig. 1 to 3, so that the working part 1 is divided into two working parts: a first working part 11 and a second working part 12. It will be understood that "divided" as used herein means that the working parts 1 are physically separated, i.e. there is no connection between the first working part 11 and the second working part 12 as in the embodiment shown in the figures.
In other embodiments, different from those shown in the drawings, the slot 20 may be open at the second end 22, but not through in the thickness direction w. If the number of the slot bodies 20 is one, the working portion 1 is divided into the first working portion 11 and the second working portion 12, and the division indicates that the first working portion 11 and the second working portion 12 can be used as independent welding head working portions during welding, but there may be a certain connection relationship between the first working portion 11 and the second working portion 12, for example, the slot body 20 may be a slot opened in the end face of the second end 22, and there may be a certain connection portion between the first working portion 11 and the second working portion 12 at the periphery of the slot.
It will be appreciated that the channel 20 as described in one or more of the previous embodiments divides the working portion 1 of the ultrasound horn into at least two embodiments, including at least two embodiments: the tank 20 divides the working part 1 of the ultrasonic horn into at least two, and the tank 20 divides the working part 1 of the ultrasonic horn into at least two.
Referring to fig. 1, in one or more embodiments of the ultrasonic horn, the pendulum rod 2 has a thickness direction w and is divided by the acoustic rod 3 into an upper pendulum rod 23 and a lower pendulum rod 24, i.e., in the directions shown in fig. 1 to 3, the upper pendulum rod 23 is located above the acoustic rod 3, and the lower pendulum rod 24 is located below the acoustic rod. The upper swing link 23 has a first end 21 and the lower swing link 24 has a second end 22. In the lower rocker 24, which has a first section 241 near the acoustic bar 3 and a second section 242 near the second end 22, the first section 241 has a first thickness w1 and the second section 242 has a second thickness w2 in the thickness direction w of the rocker 2. Wherein the first thickness w1 is different from the second thickness w 2. It is understood that the division between the first segment 241 and the second segment 242 is according to a first thickness w1 and a second thickness w 2. By providing the first section 241 and the second section 242 with different thicknesses, it is possible to achieve a different size of the weld imprint of the working portion 1 of the ultrasonic horn, for example in the embodiment shown in the figures, the second thickness w2 is greater than the first thickness w1, so that it is possible to achieve a weld imprint with a greater thickness.
Referring to fig. 3, in one or more embodiments of the ultrasonic horn, the pendulum bar 2 has a width direction b, and the lower pendulum bar 24 has a body section 243 near the acoustic rod 3 and a working section 244 near the second end 22. Along the width direction b, the body section 243 has a first width b1, the working section 244 has a second width b2, the second width b2 is greater than the first width b1, and the junction of the body section 243 and the working section 244 has an arc-shaped transition section 245. It is understood that the division between the body section 243 and the working section 244 is according to a first width b1 and a second width b 2. By providing second width b2 greater than first width b1, it is achieved that working portion 1 of the ultrasonic horn can be divided to have two or more working portions 1, while the provision of transition segment 245 reduces stress concentrations that may result from the excessive width of working segment 244.
With continued reference to fig. 3, in one or more embodiments of the ultrasonic horn, the acoustic bar has a third width b3, the third width b3 having a width matching the second width b 2. Where matching means that the third width b3 is equal to or close to the second width b2, when the second width b2 of the working segment 244 is larger, providing the third width b3 equal to or close to the second width b2 can improve the overall rigidity of the ultrasonic horn.
With continued reference to fig. 3, in one or more embodiments of the ultrasonic horn, the pendulum rod 2 is axially symmetric in the width direction b, so as to ensure uniform stress on the two or more working parts of the horn after being divided, and ensure welding quality during the two-point and multiple-point welding process.
In addition to the ultrasonic horn described in one or more of the above embodiments, the ultrasonic horn may also be subject to one or more of the following modifications or variations, which are described below only with respect to those embodiments.
In one or more embodiments of the ultrasonic horn, as shown in fig. 4, the pendulum rod 2 has a length direction L in which the length of the upper pendulum rod 23 is greater than the length of the lower pendulum rod 24, so that it is suitable for use in a transverse welding application where the transverse space of the upper pendulum rod is not limited and the lower pendulum rod does not need to be greatly avoided. Of course, in some suitable embodiments, the length of the upper swing link 23 may be configured to be less than or equal to the length of the lower swing link 24 to accommodate different welding applications.
In one or more embodiments of the ultrasonic horn, as shown in fig. 5, the acoustic rod 3 is of a variable cross-sectional configuration along its axial direction to increase the gain of the horn. Of course, in other embodiments than those shown in the figures, there may be many variations or modifications in the configuration of the acoustic bar 3. The acoustic rod 3 can be a cylindrical structure as shown in the figure, a square structure, or other variable cross-section structures.
In one or more embodiments of the ultrasonic horn, as shown in fig. 6, the two grooves 20 are opened at the second end 22 of the swing link 2, so that the working portions 1 of the ultrasonic horn are divided into three, which are shown as the first working portion 11, the second working portion 12 and the third working portion 13, so that three-point welding can be realized by the three working portions in the ultrasonic welding process. In other reasonable embodiments, the number of the grooves 20 can be three, four or more, so that the working parts are multiple, and more welding points can be welded at the same time.
In one or more embodiments of the ultrasonic horn, the pendulum rod 2 and the acoustic rod 3 are a unitary structure that is formed from the same blank or raw material by a unitary molding process including, but not limited to, machining, cast molding, or additive manufacturing. Of course, in other suitable embodiments, the pendulum rod 2 and the acoustic rod 3 may be separately manufactured and then connected by welding or fastening.
As in one or more of the embodiments described above, there may also be many variations or modifications in the configuration of the connecting member 4. For example, the connecting member 4 may be a square block structure having a wedge-shaped structure as shown in the figure, a connecting structure having a hole portion, or other connecting structures with suitable clamping.
The ultrasonic horn described in one or more of the embodiments described above may be used in an ultrasonic triad, which also includes a transducer and an amplitude modulator.
It is to be noted that one or more of the embodiments and their variations as described above may be combined as appropriate.
Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the utility model, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.
Claims (9)
1. An ultrasonic horn for use in ultrasonic welding, the ultrasonic horn being in contact with a workpiece to be welded through a working portion during ultrasonic welding, comprising:
the swing rod is provided with a first end and a second end, and the second end is provided with the working part;
an acoustic rod having one end connected to the pendulum rod between the first end and the second end; and
a connecting portion disposed at the first end;
wherein, the second end is provided with at least one cell body, the cell body will the work portion is at least two.
2. The ultrasonic horn of claim 1 wherein the pendulum has a thickness direction and the channel opens through the second end to divide the working portion into at least two.
3. The ultrasonic horn of claim 1 wherein the pendulum has a thickness direction and is divided by the acoustic bar into an upper pendulum and a lower pendulum, the lower pendulum having the second end;
wherein the lower rocker has a first section near the acoustic bar and a second section near the second end, the first section having a first thickness and the second section having a second thickness along the thickness direction, the first thickness being different from the second thickness.
4. The ultrasonic horn of claim 1 wherein the pendulum has a width direction and is divided by the acoustic bar into an upper pendulum and a lower pendulum, the lower pendulum having the second end;
the lower swing rod is provided with a body section close to the acoustic rod and a working section close to the second end, the body section is provided with a first width along the width direction, the working section is provided with a second width, the second width is larger than the first width, and an arc transition section is arranged at the joint of the body section and the working section.
5. An ultrasonic horn according to claim 4 wherein the acoustic bar has a third width in the width direction, the third width having a width matching the second width.
6. The ultrasonic horn of claim 4 wherein the pendulum is axially symmetric in the width direction.
7. An ultrasonic horn according to claim 1 wherein the acoustic rod is of variable cross-sectional configuration along its axis.
8. The ultrasonic horn of claim 1 wherein the pendulum and the acoustic rod are one piece.
9. An ultrasonic triad comprising a transducer, an amplitude modulator, and an ultrasonic horn of any of claims 1-8.
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| CN202122343642.XU CN215966851U (en) | 2021-09-26 | 2021-09-26 | Ultrasonic three-in-one set and ultrasonic welding head |
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| CN202122343642.XU CN215966851U (en) | 2021-09-26 | 2021-09-26 | Ultrasonic three-in-one set and ultrasonic welding head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669857A (en) * | 2022-04-24 | 2022-06-28 | 广东利元亨智能装备股份有限公司 | Welding head assembly, ultrasonic three-way set and ultrasonic welding machine |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669857A (en) * | 2022-04-24 | 2022-06-28 | 广东利元亨智能装备股份有限公司 | Welding head assembly, ultrasonic three-way set and ultrasonic welding machine |
| CN114669857B (en) * | 2022-04-24 | 2024-02-23 | 广东利元亨智能装备股份有限公司 | Welding head assembly, ultrasonic triple set and ultrasonic welding machine |
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