CN220028993U - Integrated ultrasonic welding head - Google Patents

Abstract

The utility model relates to an integrated ultrasonic welding head, which comprises a first welding head, a second welding head and a generator, wherein the first welding head comprises an adapter body and a welding rod body, and a plurality of welding rod bodies are closely arranged and connected to the adapter body for welding workpieces; the second welding head is arranged close to the first welding head, and comprises an amplitude transformer, a connecting body and a welding part, wherein the welding part is connected to one side of the connecting body and is used for welding a workpiece; the first adapter and the horn are connected to a generator, respectively, wherein the generator generates ultrasonic waves to cause the electrode body and the weld to work cooperatively. According to the integrated ultrasonic welding head, the plurality of welding rod bodies are closely arranged and connected on the adapter body for welding the workpiece, and the welding part is connected to one side of the connector body for welding the workpiece, so that the ultrasonic wave generated by the generator can enable the welding rod bodies and the welding part to work cooperatively through the adapter body, and the welding rod bodies and the welding part weld the workpiece cooperatively.

Description

Integrated ultrasonic welding head

Technical Field

The utility model relates to the technical field of automobile accessory machining, in particular to an integrated ultrasonic welding head.

Background

In the prior art, the ultrasonic welding technology is to directly apply high-frequency vibration to a welding workpiece through pressure, and the contact surface of the welding workpiece is subjected to friction heat generation to locally melt a material, then cooled and solidified to form a joint point, so that the welding of the workpiece is finally realized. In the ultrasonic welding of the existing automobile parts, as a single welding head is generally used for welding in the ultrasonic welding process of the automobile parts, in the welding mode, when the size of the automobile parts to be welded is larger, the workpieces cannot be welded and formed once when the single welding head is used for welding, and as the welded parts are easily cracked due to the fact that the welding points are different at the adjacent welding parts during welding, the firmness of welded products is affected, and therefore the problem of low firmness of the automobile parts after welding is needed to be solved.

Disclosure of Invention

The utility model aims to provide an integrated ultrasonic welding head and aims to solve the technical problem of low reliability of welded automobile parts.

In order to solve the technical problems, an integrated ultrasonic welding head is provided, which comprises a first welding head, a second welding head and a generator, wherein the first welding head comprises an adapter body and a welding rod body, and a plurality of welding rod bodies are closely arranged and connected with the adapter body for welding workpieces; the second welding head is arranged close to the first welding head and comprises an amplitude transformer, a connecting body and a welding part, the welding part is connected to one side of the connecting body and used for welding a workpiece, and the amplitude transformer is connected to the connecting body relative to the welding part; the adapter and the amplitude transformer are respectively connected with the generator, wherein the generator generates ultrasonic waves to enable the welding rod body and the welding part to work cooperatively.

Further, the adapter body comprises a first side surface, a first hollowed-out groove is formed in the adapter body, the first hollowed-out groove is perpendicular to the first side surface, and the first hollowed-out groove penetrates through the adapter body.

Further, the adapter body further comprises a second side surface adjacent to the first side surface, a second hollowed-out groove is further formed in the adapter body, the second hollowed-out groove is perpendicular to the second side surface, and the second hollowed-out groove penetrates through the adapter body and is communicated with the first hollowed-out groove.

Further, at least two first welding heads are spliced with the second welding heads, and the second welding heads are adjacent to the two first welding heads in a splicing joint.

Further, the connector forms a third hollow groove, the third hollow groove penetrates through the connector, and the third hollow groove and the second hollow groove are arranged in parallel.

Further, the welding rod body comprises an extension column, a connecting column and a welding head part, one end of the extension column is connected to the adapter body, the connecting column is connected to the other end of the extension column in the direction away from the adapter body, the welding part is connected to the connecting column away from the extension column, and the connecting position of the connecting column and the extension column is gradually contracted in the direction away from the adapter body so that the diameter of the connecting column is smaller than that of the extension column.

Further, the welding head portion comprises a contact surface, the contact surface comprises a first curved surface and a second curved surface, the first curved surface is smoothly connected with the second curved surface, and/or the first curved surface and/or the second curved surface are/is used for contacting a workpiece.

Further, at least two third hollowed-out grooves are arranged on the connector at intervals.

Further, the connecting body comprises an extension part and a connecting part connected with the extension part, wherein the welding part is far away from the extension part and is connected with the connecting part, and the connecting part gradually contracts towards the direction far away from the amplitude transformer and is connected with the extension part.

Further, the welding portion is annular and arranged on the connecting portion, the welding portion comprises an end face, and the end face is tangent to the contact surface.

The implementation of the embodiment of the utility model has the following beneficial effects:

in the integrated ultrasonic welding head in this embodiment, because a plurality of welding rod bodies are closely arranged and connected on the adapter body and are used for welding the workpiece, the welding part is connected to one side of the connector body and is used for welding the workpiece, thereby the generator generates ultrasonic waves and makes the welding rod body and the welding part work cooperatively through the adapter body, and then the welding rod body and the welding part weld the workpiece cooperatively, and the problem of low reliability after the automobile fitting is welded in the prior art is overcome.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an integrated ultrasonic horn according to an embodiment of the present utility model;

fig. 2 is a schematic view of a first welding head according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a first bonding tool according to an embodiment of the present utility model from a second perspective;

FIG. 4 is a schematic view of a structure of a connector according to a first embodiment of the present utility model;

FIG. 5 is a schematic view of a structure of a connector according to a second embodiment of the present utility model;

fig. 6 is a bottom view of an integrated ultrasonic horn according to an embodiment of the present utility model;

fig. 7 is a partial enlarged view at a in fig. 6.

Wherein: 100. an integrated ultrasonic horn; 110. a first welding head; 111. an adapter; 1111. a first side; 1112. a first hollow groove; 1113. a second side; 1114. a second hollow groove; 112. a welding rod body; 1121. an extension column; 1122. a connecting column; 1123. a welding head part; 11231. a contact surface; 11201. a first curved surface; 11202. a second curved surface; 120. a second welding head; 121. a horn; 122. a connecting body; 1221. a third hollow groove; 1222. an extension; 1223. a connection part; 123. a welding part; 1231. an end face; 200. a workpiece.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-7, an integrated ultrasonic welding head 100 according to an embodiment of the present utility model includes a first welding head 110, a second welding head 120, and a generator (not shown), wherein the first welding head 110 includes an adapter 111 and a welding rod body 112, and the plurality of welding rod bodies 112 are closely arranged and connected to the adapter 111 for welding a workpiece 200; the second welding head 120 is disposed close to the first welding head 110, the second welding head 120 includes a horn 121, a connecting body 122, and a welding portion 123, the welding portion 123 is connected to one side of the connecting body 122 for welding the workpiece 200, and the horn 121 is connected to the connecting body 122 opposite to the welding portion 123; the adapter 111 and horn 121 are each connected to a generator that generates ultrasonic waves to cause the electrode body 112 and weld 123 to cooperate. In a specific application, a single welding head is generally designed to weld according to the shape of a workpiece 200 to be welded and the edge to be welded, but because the principle of ultrasonic welding is that high-frequency vibration is utilized to directly act on the welded workpiece 200 through pressure, the contact surface of the welding part is locally melted due to friction heat, and then cooled and solidified to form a joint, the welding of the workpiece 200 is finally realized, however, because the welding head is relatively slow in the track welding process, a large temperature difference exists between a certain welding position and an unwelded position, so that cracking easily occurs after welding, and further the firmness after welding of an automobile part is realized, therefore, the welding part 123 is closely arranged on the adapter 111 through a plurality of electrode bodies 112 and is used for welding the workpiece 200, and the welding part 123 is connected on one side of the connecting body 122 to form a complete welding track, so that when the ultrasonic device is started, the ultrasonic wave is generated to enable the electrode body 112 and the welding part 123 to cooperatively work to jointly finish the welding of the workpiece 200, and thus, the firmness after welding of the workpiece 200 can be improved, and the efficiency of the welding of the workpiece 200 can be improved.

In one possible embodiment, the adapter 111 includes a first side 1111, the adapter 111 is formed with a first hollow groove 1112, the first hollow groove 1112 is perpendicular to the first side 1111, and the first hollow groove 1112 penetrates through the adapter 111. In a specific application, the first hollow groove 1112 penetrates through the adapter 111 to suppress radial vibration of the electrode body 112 to a certain extent, and by reducing energy loss caused by the radial vibration, ultrasonic kinetic energy generated by the generator tends to the axial direction for improving energy required by welding, and in addition, the first hollow groove 1112 also reduces weight of the adapter 111 and reduces metal fatigue caused by high-frequency vibration of the adapter 111.

In one possible embodiment, the adapter 111 further includes a second side 1113 adjacent to the first side 1111, the adapter 111 further includes a second hollow groove 1114 formed therein, the second hollow groove 1114 is perpendicular to the second side 1113, and the second hollow groove 1114 is communicated with the first hollow groove 1112 through the adapter 111. In particular applications, when the hollowed-out direction of the first hollowed-out groove 1112 is assumed to be the X direction, the hollowed-out direction of the second hollowed-out groove 1114 is assumed to be the Y direction, the X direction and the Y direction are mutually perpendicular, when the ultrasonic wave of the generator is transmitted to the first hollowed-out groove 1112, the ultrasonic wave is restrained in the radial direction of Y, when the ultrasonic wave of the generator is transmitted to the second hollowed-out groove 1114, the ultrasonic wave is restrained in the radial direction of X, therefore, when the first hollowed-out groove 1112 and the second hollowed-out groove 1114 act together, the radial vibration of the X direction and the Y direction can be greatly restrained, and it is worth explaining that the radial vibration of either the X-bias direction or the Y-bias X direction can also play a restraining effect through the first hollowed-out groove 1112 and the second hollowed-out groove 1114.

In one possible embodiment, at least two first bonding tools 110 are joined to a second bonding tool 120, and the second bonding tool 120 is adjacent to the junction of the two first bonding tools 110. In a specific application, after the two first welding heads 110 are spliced with the second welding head 120, the second welding head 120 is adjacent to the splicing position of the two first welding heads 110, and the splicing between the first welding heads 110 makes adjacent welding rods form a tight arrangement to form a specific welding track (the shape edge of the workpiece 200) for welding the workpiece 200, if the shape of the workpiece 200 is complex, such as having a larger corner feature, the welding part 123 of the second welding head 120 can weld the part of the workpiece 200 after the corner is more, so that the workpiece 200 at the corner is not welded for the second time, thereby improving the welding efficiency.

In one possible embodiment, the connecting body 122 forms a third hollow groove 1221, the third hollow groove 1221 penetrates through the connecting body 122, and the third hollow groove 1221 is disposed parallel to the second hollow groove 1114. In a specific application, since the connecting body 122 is relatively flat, the third hollow groove 1221 can inhibit the transverse vibration of the connecting body 122, and the third hollow groove 1221 and the second hollow groove 1114 are arranged in parallel, so that the third hollow groove 1221 can inhibit the vibration of the second hollow groove 1114 in the same direction.

In one possible embodiment, the welding rod body 112 includes an extension column 1121, a connection column 1122, and a welding head 1123, one end of the extension column 1121 is connected to the adapter body 111, the connection column 1122 is connected to the other end of the extension column 1121 in a direction away from the adapter body 111, and the welding part 123 is connected to the connection column 1122 away from the extension column 1121, wherein the connection point of the connection column 1122 and the extension column 1121 is gradually contracted in a direction away from the adapter body 111 so that the diameter of the connection column 1122 is smaller than that of the extension column 1121. In a specific application, in order to further increase the frequency of the axial vibration, the connection portion between the connection post 1122 and the extension post 1121 gradually contracts away from the adapter 111, so that the diameter of the connection post 1122 is smaller than that of the extension post 1121, and thus, when the ultrasonic wave of the generator is transmitted from the extension post 1121 to the connection post 1122, the radial vibration is further reduced due to the radial length reduction when the diameter of the connection post 1122 is smaller than that of the extension post 1121, so that the energy of the axial ultrasonic vibration of the welding portion 123 is more concentrated.

In one possible embodiment, the horn 1123 includes a contact surface 11231, the contact surface 11231 includes a first curved surface 11201 and a second curved surface 11202, the first curved surface 11201 is smoothly connected to the second curved surface 11202, and the first curved surface 11201 and/or the second curved surface 11202 are configured to contact the workpiece 200. In a specific application, since the parallelism of the surface of the workpiece 200 is not high, in order to improve the contact degree between the contact surface 11231 of the welding portion 123 and the workpiece 200, the first curved surface 11201 and the second curved surface 11202 are connected smoothly, so that the first curved surface 11201 and/or the second curved surface 11202 can contact the surface of the workpiece 200 to weld, and in addition, the curvature of the first curved surface 11201 and the second curved surface 11202 is small, the product of the contact surface 11231 of the first curved surface 11201 or the second curved surface 11202 and the welding portion 123 can be improved, and the energy of ultrasonic vibration can be transferred to the workpiece 200.

In one possible embodiment, at least two third hollow grooves 1221 are disposed on the connecting body 122 at intervals. In particular, in order to improve the capability of the connector 122 to laterally inhibit vibration, at least two third hollow grooves 1221 are disposed on the connector 122 at intervals, where the lengths of the third hollow grooves 1221 may be inconsistent, and the number of the third hollow grooves 1221 is not limited.

In one possible embodiment, the connector 122 includes an extension 1222 and a connecting portion 1223 connected to the extension 1222, the weld 123 being connected to the connecting portion 1223 away from the extension 1222, wherein the connecting portion 1223 tapers away from the horn 121 to connect to the extension 1222. In a specific application, in order to improve the capability of the connector 122 to vibrate vertically, the connecting portion 1223 gradually contracts towards the direction away from the horn 121 and is connected to the extension portion 1222, so that the connecting portion 1223 contracts laterally and is connected to the extension portion 1222, and therefore, the lateral length of the connecting portion 1223 is smaller than that of the extension portion 1222, so that the capability of the connector 122 to vibrate laterally is weakened, the axial vibration of the connector 122 is indirectly enhanced, and the welding portion 123 transmits the energy of the vertical vibration to the workpiece 200.

In one possible embodiment, the welding portion 123 is disposed in an annular shape on the connecting portion 1223, and the welding portion 123 includes an end face 1231, where the end face 1231 is tangent to the contact face 11231. In a specific application, the welding portion 123 is annularly adapted to the edge of the workpiece 200, and the end face 1231 and the contact face 11231 are tangentially arranged, so that when the end face 1231 of the welding portion 123 contacts the surface of the workpiece 200, the contact face 11231 of the welding head 1123 also contacts the workpiece 200, thereby avoiding the occurrence of cold welding of the workpiece 200.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An integrated ultrasonic horn, comprising:

the welding rod body is closely arranged and connected with the adapter body to be used for welding a workpiece;

the second welding head is arranged close to the first welding head and comprises an amplitude transformer, a connecting body and a welding part, the welding part is connected to one side of the connecting body and used for welding a workpiece, and the amplitude transformer is connected to the connecting body relative to the welding part;

and the adapter body and the amplitude transformer are respectively connected with the generator, wherein the generator generates ultrasonic waves to enable the welding rod body and the welding part to work cooperatively.

2. The integrated ultrasonic horn of claim 1, wherein the adapter includes a first side, the adapter is formed with a first hollowed-out groove, the first hollowed-out groove is perpendicular to the first side, and the first hollowed-out groove penetrates through the adapter.

3. The integrated ultrasonic horn of claim 2, wherein the adapter further comprises a second side adjacent to the first side, the adapter further defines a second hollowed out groove perpendicular to the second side, and the second hollowed out groove extends through the adapter and communicates with the first hollowed out groove.

4. An integrated ultrasonic welding head according to claim 2 or 3, wherein at least two of said first welding heads are joined to said second welding heads, and said second welding heads are joined adjacent to said two first welding heads.

5. The integrated ultrasonic horn of claim 4, wherein the connector forms a third hollowed-out groove that extends through the connector, and the third hollowed-out groove is disposed parallel to the second hollowed-out groove.

6. The integrated ultrasonic horn of claim 1 wherein the electrode body comprises an extension post, a connecting post and a horn portion, one end of the extension post being connected to the adapter body, the connecting post being connected to the other end of the extension post in a direction away from the adapter body, the weld being connected to the connecting post in a direction away from the extension post, wherein the junction of the connecting post and the extension post tapers in a direction away from the adapter body such that the diameter of the connecting post is smaller than the extension post.

7. The integrated ultrasonic horn of claim 6, wherein the horn portion includes a contact surface comprising a first curved surface and a second curved surface, the first curved surface being in smooth connection with the second curved surface, and the first curved surface and/or the second curved surface being for contacting a workpiece.

8. The integrated ultrasonic horn of claim 5 wherein at least two of said third hollowed-out grooves are spaced apart on said connector.

9. The integrated ultrasonic horn of claim 7 wherein the connector includes an extension and a connector connected to the extension, the weld being connected to the connector away from the extension, wherein the connector tapers away from the horn to connect to the extension.

10. The integrated ultrasonic horn of claim 9, wherein the weld is annularly disposed to the connection, the weld including an end face, the end face being tangential to the contact face.