Efficient vibration transmission amplitude-change pole and ultrasonic metal welding device

Abstract

The utility model relates to the field of ultrasonic welding, in particular to an efficient vibration transmission amplitude-change pole and an ultrasonic metal welding device.The efficient vibration transmission amplitude-change pole comprises a main body and a first protrusion, the main body and the first protrusion are coaxially arranged, the two ends of the main body are the input end and the output end, the output end is fixedly connected with the first protrusion, and the output end of the main body is provided with a vibration coupling face; the vibration coupling surface is of a plane structure and abuts against second equipment to transmit ultrasonic vibration, and a groove is formed in the vibration coupling surface. According to the invention, the groove can isolate the first projection from the vibration coupling surface for a certain spatial distance, thereby weakening or eliminating the negative impact on the vibration transmission efficiency of the vibration coupling surface caused by the tensile stress of the first projection, and further improving the vibration transmission efficiency. According to the ultrasonic metal welding device, the ultrasonic welding head can be rapidly assembled and disassembled, the welding efficiency is high, the precision is high, and the ultrasonic welding head can be rapidly assembled and disassembled.

Description

Technical Field

[0001] The present application relates to the field of ultrasonic welding, and in particular to a high-efficiency vibration transmission horn and an ultrasonic metal welding device. Background Art

[0002] In the field of welding, ultrasonic metal welding is a process between cold pressure welding and friction welding. During welding, the welding pressure acts vertically on the welding surface through the welding head welding point, and the shear force of high-frequency vibration is superimposed. When the shear force exceeds the elastic limit of the material, part of the contact surface of the workpiece begins to slip. This shear force constantly changes direction at a frequency of tens of thousands of times per second during the welding process, breaking and removing the dirt on the surface of the workpiece. The pure metal surface begins to contact in multiple points. With the continuation of high-frequency vibration, the contact area of ​​the pure metal continues to expand until it expands to the entire welding area. At the same time, atomic diffusion occurs on the contact surface, and the metal recrystallizes to form a fine-grained structure and presents the characteristics of metal cold deformation.

[0003] At present, in conventional ultrasonic metal welding devices on the market, the vibration input end of the vibration transmission horn is connected to the ultrasonic transducer, and the vibration output end is connected to the ultrasonic welding head. The ultrasonic vibration from the ultrasonic transducer is transmitted to the ultrasonic welding head through the vibration transmission horn to realize the ultrasonic welding function. Among them, the vibration output end of the vibration transmission horn is provided with a fastening thread hole, and the bolt is connected in the fastening thread hole. The vibration transmission horn is fastened and connected to the ultrasonic welding head through the fastening thread hole and the connecting bolt. In actual application, if the structural size of the fastening thread hole of the vibration transmission horn is too thick, the main body of the horn will become weak and easy to be cracked by vibration, and the vibration transmission efficiency of the vibration transmission horn will be reduced, resulting in heat. If the structural size of the fastening thread hole of the vibration transmission horn is too thin, the structural size of the connecting bolts that cooperate with each other will become thinner accordingly, the fastening prestress will be reduced, and the connecting bolts will also be prone to fatigue fracture. Utility Model Content

[0004] The purpose of the present application is to provide a high-efficiency vibration transmission horn and an ultrasonic metal welding device.

[0005] The embodiments of the present application can be implemented through the following technical solutions:

[0006] A high-efficiency vibration transmission horn, comprising a fixedly connected main body and a first protrusion, wherein the main body is a columnar structure and the cross-sectional area of ​​the main body along its radial direction is larger than the maximum cross-sectional area of ​​the first protrusion along the radial direction of the main body, the main body and the first protrusion are coaxially arranged, the two ends of the main body are an input end and an output end respectively, the output end is fixedly connected to the first protrusion, and the input end is used to connect to a first device;

[0007] Furthermore, a vibration coupling surface is provided at the output end of the main body, the vibration coupling surface is a planar structure and abuts against the second device to transmit ultrasonic vibrations, a groove is provided on the vibration coupling surface, the groove and the vibration coupling surface are both coaxially arranged with the main body, and the groove is fixedly connected to the first protrusion.

[0008] Furthermore, the first protrusion includes a thread column and a boss, the thread column is fixedly connected to the boss, and the boss is fixedly connected to the main body;

[0009] Furthermore, the thread column is a cylindrical structure and has threads on its outer surface;

[0010] Furthermore, the boss is a columnar structure.

[0011] Furthermore, the main body includes a first shaft portion and a second shaft portion, the first shaft portion and the second shaft portion are fixedly connected and coaxially arranged, the outer diameter of the second shaft portion is greater than or equal to the first shaft portion, and the second shaft portion is arranged at the output end or the input end of the main body.

[0012] Further, the cross section of the first shaft portion along the radial direction of the main body is any one of a circle and a rectangle;

[0013] Furthermore, a cross section of the second shaft portion along the radial direction of the main body is any one of a circular shape and a rectangular shape.

[0014] Furthermore, the first protrusion is a solid structure or a hollow structure.

[0015] Furthermore, one or more groups of wrench grooves are symmetrically arranged on the outer wall of the main body along its axial direction.

[0016] Furthermore, a wire hole structure is coaxially arranged inside the input end of the main body, and the main body is adapted and connected to the first device through the wire hole structure.

[0017] An ultrasonic metal welding device comprises an ultrasonic transducer, an ultrasonic welding head, a welding head resonant fixture and a vibration transmission and amplitude modulation rod, wherein the vibration coupling surface abuts against the ultrasonic welding head, the first protrusion penetrates and passes through the ultrasonic welding head and the welding head resonant fixture in sequence, the thread column is threadedly connected to the welding head resonant fixture, the ultrasonic welding head is fastened to the welding head resonant fixture through the vibration transmission and amplitude modulation rod, the ultrasonic transducer is connected to the input end of the vibration transmission and amplitude modulation rod, and the ultrasonic vibration is transmitted to the ultrasonic welding head through the vibration transmission and amplitude modulation rod.

[0018] An ultrasonic metal welding device comprises an ultrasonic transducer, an ultrasonic welding head, a welding head resonant fixture, a resonant rod and the vibration transmission and amplitude modulation rod, wherein the vibration coupling surface abuts against the ultrasonic welding head, the first protrusion penetrates and passes through the ultrasonic welding head, the welding head resonant fixture and the resonant rod in sequence, the screw column is threadedly connected to the resonant rod, the ultrasonic welding head is fastened to the welding head resonant fixture through the vibration transmission and amplitude modulation rod and the resonant rod, the ultrasonic transducer is connected to the input end of the vibration transmission and amplitude modulation rod, and the ultrasonic vibration is transmitted to the ultrasonic welding head through the vibration transmission and amplitude modulation rod.

[0019] An ultrasonic metal welding device comprises an ultrasonic transducer, an ultrasonic welding head, a welding head resonance fixture, a resonance rod and the vibration transmission and amplitude modulation rod, the two sides of the welding head resonance fixture are respectively abutted against the vibration coupling surface and the resonance rod, the ultrasonic welding head is arranged in the clamp of the welding head resonance fixture, the first protrusion penetrates and passes through the ultrasonic welding head, the welding head resonance fixture and the resonance rod in sequence, the wire column is threadedly connected to the resonance rod, the ultrasonic welding head is fastened to the welding head resonance fixture through the vibration transmission and amplitude modulation rod and the resonance rod, the ultrasonic transducer is connected to the input end of the vibration transmission and amplitude modulation rod, and the ultrasonic vibration is transmitted to the ultrasonic welding head through the vibration transmission and amplitude modulation rod.

[0020] The embodiment of the present application provides a high-efficiency vibration transmission horn and an ultrasonic metal welding device which has at least the following beneficial effects:

[0021] 1. The overall structural setting of the vibration transmission horn in the present application makes the main body unaffected by the thickness of the first protrusion. The outer diameter of the first protrusion can be increased according to actual needs to obtain greater fatigue resistance, transmit greater vibration power, and obtain a longer service life. At the same time, it can also achieve greater fastening prestress, improve vibration coupling efficiency, and avoid heating problems;

[0022] 2. The groove in the present application can isolate the first protrusion and the vibration coupling surface by a certain spatial distance, thereby reducing or eliminating the negative impact of the tensile stress of the first protrusion on the vibration transmission efficiency of the vibration coupling surface, thereby improving the vibration transmission efficiency;

[0023] 3. The setting of the groove in the present application reduces the effective action area of ​​the vibration coupling surface, which can further increase the pre-stress of the vibration coupling surface, improve the ultrasonic vibration coupling efficiency of the ultrasonic welding device, and reduce welding losses;

[0024] 4. The first protrusion in this application can be used as a positioning reference to further improve welding accuracy;

[0025] 5. The ultrasonic metal welding device in this application is a direct pressure ultrasonic metal welding device, which has high welding efficiency and high precision;

[0026] 6. The ultrasonic welding head loading and unloading structure of the ultrasonic metal welding device in the present application is a fast welding head loading and unloading structure, which can realize high-precision and fast loading and unloading of the ultrasonic welding head, and the installation and debugging are quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of the vibration transmission horn of Example 1 of the present application;

[0028] Figure 2 It is a cross-sectional view of the vibration transmission horn of Example 1 of the present application;

[0029] Figure 3 is a cross-sectional view of an ultrasonic welding device according to Embodiment 1 of the present application;

[0030] Figure 4 This is a structural diagram of the vibration transmission horn of Example 2 of the present application;

[0031] Figure 5 It is a cross-sectional view of the vibration transmission horn of the second embodiment of the present application;

[0032] Figure 6 It is a cross-sectional view of the ultrasonic welding device of Example 2 of the present application;

[0033] Figure 7 This is a structural diagram of the vibration transmission horn of Example 3 of the present application;

[0034] Figure 8 It is a cross-sectional view of the vibration transmission horn of Example 3 of the present application;

[0035] Fig. 9 This is a cross-sectional view of the ultrasonic welding device of Example 3 in the present application.

[0036] The numbers in the figure are: 1-vibration transmission and amplitude modulation rod, 11-main body, 112-first shaft portion, 113-second shaft portion, 12-vibration coupling surface, 13-groove, 14-wrench groove, 15-first protrusion, 151-thread column, 152-boss, 3-resonance rod, 4-ultrasonic transducer, 5-ultrasonic welding head, 6-welding head resonance fixture. DETAILED DESCRIPTION

[0037] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0038] In addition, various components on the drawings are enlarged (thickened) or reduced (thinned) for ease of understanding, but this practice is not intended to limit the scope of protection of the present application.

[0039] Words importing the singular also include the plural and vice versa.

[0040] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, the words first, second, etc. are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance, and their names may be different in the detailed description and claims of the present application.

[0041] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0042] The present application provides a high-efficiency vibration transmission horn, comprising a fixedly connected main body 11 and a first protrusion 15, wherein the main body 11 is a columnar structure and the cross-sectional area of ​​the main body 11 along its radial direction is greater than the maximum cross-sectional area of ​​the first protrusion 15 along the radial direction of the main body 11. The main body 11 and the first protrusion 15 are coaxially arranged, and at the same time, the two ends of the main body 11 are respectively an input end and an output end, the input end is connected to a first device, and the output end is fixedly connected to the first protrusion 15;

[0043] In some preferred embodiments of the present application, the cross-section of the main body 11 along its radial direction is mostly circular or rectangular.

[0044] In some preferred embodiments of the present application, the main body 11 includes a first shaft portion 112 and a second shaft portion 113, the first shaft portion 112 and the second shaft portion 113 are fixedly connected and coaxially arranged, the outer diameter of the second shaft portion 113 is greater than or equal to the first shaft portion 112, and the amplitude of the ultrasonic wave is changed by changing the outer diameters of the first shaft portion 112 and the second shaft portion 113. At the same time, the second shaft portion 113 is arranged at the output end or the input end of the main body 11, wherein when the second shaft portion 113 is arranged at the output end of the main body 11, it plays a role in reducing the amplitude; when the second shaft portion 113 is arranged at the input end of the main body 11, it plays a role in increasing the amplitude.

[0045] In some preferred embodiments of the present application, a cross-section of the first shaft portion 112 along the radial direction of the main body 11 is either circular or rectangular; a cross-section of the second shaft portion 113 along the radial direction of the main body 11 is either circular or rectangular.

[0046] Furthermore, a vibration coupling surface 12 is provided at the output end of the main body 11 , and the vibration coupling surface 12 is a planar structure. The vibration transmission and horn 1 is connected to the second device through the vibration coupling surface 12 to couple and output ultrasonic vibration.

[0047] Furthermore, a groove 13 is provided on the vibration coupling surface 12, and the shape, structure and size of the groove 13 can be adjusted according to actual conditions and requirements, such as Figure 2 As shown, the radial length of the vibration coupling surface 12 is a, the radial length of the groove 13 is b, and the radial length of the first protrusion 15 is c, and the size relationship between the three is a>b>c. The first protrusion 15 is fixedly connected to the groove 13 and the first protrusion 15 does not contact the vibration coupling surface 12, that is, the groove 13 separates the first protrusion 15 from the vibration coupling surface 12.

[0048] On the one hand, the arrangement of the groove 13 can further reduce the area of ​​the vibration coupling surface 12, thereby increasing the pre-stress of the vibration coupling surface, thereby increasing the ultrasonic vibration coupling efficiency and reducing welding losses.

[0049] On the other hand, the force borne by the first protrusion 15 is tensile stress, and the tensile stress will cause a protrusion deformation at the root where the first protrusion 15 is fixedly connected to the main body 11. If the vibration coupling surface 12 is too close to the first protrusion 15, this protrusion deformation will also cause the planar structure of the vibration coupling surface 12 to deform, thereby reducing the vibration coupling efficiency of the vibration coupling surface 12. The present application isolates the vibration coupling surface 12 from the first protrusion 15 and makes them have a certain spatial distance through the setting of the groove 13, which is equivalent to setting a avoiding position, thereby reducing or eliminating the influence of this deformation on the vibration coupling surface 12, thereby improving the ultrasonic vibration coupling efficiency and reducing welding losses.

[0050] Specifically, the first device includes an ultrasonic transducer 4 and the like.

[0051] Specifically, the third device includes a resonance rod 3, a welding head resonance fixture 6 and the like.

[0052] Specifically, the second device includes an ultrasonic horn 5, a horn resonance fixture 6, and the like.

[0053] In some preferred embodiments of the present application, the first protrusion 15 is a solid structure or a hollow structure.

[0054] Further, the first protrusion 15 includes a threaded column 151 and a boss 152, wherein the threaded column 151 is fixedly connected to the boss 152, and the boss 152 is fixedly connected to the main body 11, wherein the threaded column 151 is a cylindrical structure and the outer surface is provided with threads, that is, the threaded connection between the threaded column 151 and the third device can be achieved through the threads and the threads can provide a tightening prestress. The boss 152 is a columnar structure, and the cross-section of the boss 152 along its radial direction is mostly circular, rectangular and polygonal. At the same time, the boss 152 can serve as a positioning reference when installing the vibration transmission and amplitude transformer 1.

[0055] In the present application, the main body 11 can be unaffected by the first protrusion 15, and the thickness of the first protrusion 15 can be designed according to actual conditions. When the first protrusion 15 has a large diameter, it can obtain greater fatigue resistance, transmit greater vibration power, and obtain a longer service life. At the same time, it can also achieve greater fastening prestress, improve vibration coupling efficiency, and avoid heat problems.

[0056] In some preferred embodiments of the present application, one or more groups of wrench grooves 14 are provided on the outer wall of the main body 11 for disassembling the vibration transmission horn 1 .

[0057] Furthermore, a wire hole structure is coaxially arranged inside the input end of the main body 11, and the wire hole structure is adapted to the first device, and the connection between the vibration transmission and amplitude modulation rod 1 and the first device is achieved through the wire hole structure.

[0058] An ultrasonic welding device includes an ultrasonic transducer 4, an ultrasonic welding head 5, a welding head resonance fixture 6 and the vibration transmission and amplitude modulation rod 1, wherein one end of the vibration transmission and amplitude modulation rod 1 away from the first protrusion 15 is connected to the ultrasonic transducer 4, and the other end of the vibration transmission and amplitude modulation rod 1 is connected to the ultrasonic welding head 5 or the welding head resonance fixture 6.

[0059] Furthermore, the vibration coupling surface 12 abuts against the ultrasonic horn 5 or the horn resonance fixture 6 .

[0060] Furthermore, the ultrasonic welding device further comprises a resonance rod 3 , and the threaded structure of the first protrusion 15 is connected to the resonance rod 3 or the welding head resonance fixture 6 .

[0061] Hereinafter, various situations of the above-mentioned high-efficiency vibration transmission horn and ultrasonic metal welding device will be described through embodiments.

[0062] Embodiment 1

[0063] like Figure 1 , Figure 2 and Figure 3 As shown, the present application provides a high-efficiency vibration transmission horn, comprising a fixedly connected main body 11 and a first protrusion 15, the main body 11 and the first protrusion 15 are coaxially arranged, the main body 11 is a cylindrical structure and the cross section along its radial direction is circular, and the diameter of the cross section is always the same. At the same time, the two ends of the main body 11 are respectively an input end and an output end, the input end is connected to the first device, and the output end is fixedly connected to the first protrusion 15.

[0064] Furthermore, a vibration coupling surface 12 is provided at the output end of the main body 11 , and the vibration coupling surface 12 is a planar structure. The vibration transmission and horn 1 is connected to the second device through the vibration coupling surface 12 to couple and output ultrasonic vibration.

[0065] Furthermore, a groove 13 is provided on the vibration coupling surface 12, and the cross-section of the groove 13 is circular. The groove 13 and the vibration coupling surface 12 are concentrically arranged. At the same time, the diameter of the groove 13 is smaller than the diameter of the vibration coupling surface 12 and larger than the diameter of the first protrusion 15. The first protrusion 15 is fixedly connected to the groove 13 and the first protrusion 15 does not contact the vibration coupling surface 12, that is, the groove 13 separates the first protrusion 15 from the vibration coupling surface 12. The groove 13 can weaken or eliminate the negative impact of the first protrusion 15 on the vibration transmission efficiency of the vibration coupling surface 12 due to the tensile stress and increase the pre-compression stress of the vibration coupling surface 12.

[0066] Specifically, the first device is an ultrasonic transducer 4 , the second device is an ultrasonic horn 5 , and the third device is a horn resonance fixture 6 .

[0067] In some preferred embodiments of the present application, the first protrusion 15 is a hollow structure, that is, the interior of the first protrusion 15 is a hollow tubular structure extending along its axial direction.

[0068] Furthermore, the first protrusion 15 includes a threaded post 151 and a boss 152, wherein the threaded post 151 is fixedly connected to the boss 152, and the boss 152 is fixedly connected to the main body 11, and a thread is provided on the outer surface of the threaded post 151. The cross-sections of the boss 152 and the threaded post 151 along the radial direction of the main body 11 are both circular, and the diameters of the circles are the same.

[0069] Furthermore, a group of spanner grooves 14 are provided on the outer wall of the main body 11 close to the output end, and the spanner grooves 14 can facilitate the disassembly of the vibration transmission horn 1 .

[0070] Furthermore, a wire hole structure is coaxially arranged inside the input end of the main body 11, and the wire hole structure is adapted to the first device, and the connection between the vibration transmission and amplitude modulation rod 1 and the first device is achieved through the wire hole structure.

[0071] The present application also provides an ultrasonic welding device, including an ultrasonic transducer 4, an ultrasonic welding head 5, a welding head resonance fixture 6 and the vibration transmission and amplitude modulation rod 1, the vibration coupling surface 12 is in contact with the ultrasonic welding head 5, the first protrusion 15 penetrates and passes through the ultrasonic welding head 5 and the welding head resonance fixture 6 in sequence, the wire column 151 is connected to the welding head resonance fixture 6 by a thread, and the ultrasonic welding head 5 is fastened to the welding head resonance fixture 6 through the cooperation of the vibration transmission and amplitude modulation rod 1 and the welding head resonance fixture, the ultrasonic transducer 4 is connected to the input end of the vibration transmission and amplitude modulation rod 1, and the ultrasonic vibration is transmitted to the ultrasonic welding head 5 through the vibration transmission and amplitude modulation rod 1, so as to finally realize ultrasonic welding.

[0072] Embodiment 2

[0073] like Figure 4 , Figure 5 and Figure 6 As shown, the overall structure of the vibration transmission and amplitude changing rod in this embodiment is similar to that in the first embodiment, and the only difference is that the main body 11 includes a first shaft portion 112 and a second shaft portion 113, and the first shaft portion 112 and the second shaft portion 113 are fixedly connected, and the cross-sections of the first shaft portion 112 and the second shaft portion 113 along the radial direction of the main body 11 are both circular, and the outer diameter of the second shaft portion 113 is larger than the outer diameter of the first shaft portion 112. At the same time, the second shaft portion 113 is arranged at the input end of the main body 11 to increase the amplitude.

[0074] Specifically, the first device is an ultrasonic transducer 4 , the second device is an ultrasonic horn 5 , and the third device is a resonance rod 3 .

[0075] Furthermore, the first protrusion 15 is a solid structure.

[0076] The present application also provides an ultrasonic welding device, including an ultrasonic transducer 4, an ultrasonic welding head 5, a resonant rod 3, a welding head resonant fixture 6 and the vibration transmission and amplitude modulation rod 1, the vibration coupling surface 12 is in contact with the ultrasonic welding head 5, the first protrusion 15 penetrates and passes through the ultrasonic welding head 5, the welding head resonant fixture 6 and the resonant rod 3 in sequence, the wire column 151 is connected to the resonant rod 3 by a thread, and the ultrasonic welding head 5 is fastened to the welding head resonant fixture 6 by the cooperation of the vibration transmission and amplitude modulation rod 1 and the resonant rod 3, the ultrasonic transducer 4 is connected to the input end of the vibration transmission and amplitude modulation rod 1, and the ultrasonic vibration is transmitted to the ultrasonic welding head 5 through the vibration transmission and amplitude modulation rod 1, so as to finally realize ultrasonic welding.

[0077] Embodiment 3

[0078] like Figure 7 , Figure 8 and Fig. 9 As shown, the vibration transmission and amplitude modulation rod in this embodiment is similar to the overall structure of the embodiment 2, the only difference is that the cross-section of the first shaft portion 112 along the radial direction of the main body 11 is circular, and the cross-section of the second shaft portion 113 along the radial direction of the main body 11 is rectangular.

[0079] Furthermore, the cross section of the groove 13 is rectangular, and the cross section of the boss 152 is polygonal.

[0080] Furthermore, the first device is an ultrasonic transducer 4 , the second device is a welding head resonance fixture 6 , and the third device is a resonance rod 3 .

[0081] The present application also provides an ultrasonic welding device, including an ultrasonic transducer 4, an ultrasonic welding head 5, a resonant rod 3, a welding head resonant fixture 6 and the vibration transmission and amplitude modulation rod 1, the two sides of the welding head resonant fixture 6 are respectively abutted against the vibration coupling surface 12 and the resonant rod 3, the ultrasonic welding head 5 is arranged in the clamping mouth of the welding head resonant fixture 6, the first protrusion 15 penetrates and passes through the ultrasonic welding head 5, the welding head resonant fixture 6 and the resonant rod 3 in sequence, the wire column 151 is connected to the resonant rod 3 by a thread, and the ultrasonic welding head 5 is fastened to the welding head resonant fixture 6 by the cooperation of the vibration transmission and amplitude modulation rod 1 and the resonant rod 3, the ultrasonic transducer 4 is connected to the input end of the vibration transmission and amplitude modulation rod 1, and the ultrasonic vibration is transmitted to the ultrasonic welding head 5 through the vibration transmission and amplitude modulation rod 1, so as to finally realize ultrasonic welding.

[0082] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications may be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A high-efficiency vibration transmission horn, characterized in that: The invention comprises a main body (11) and a first protrusion (15) which are fixedly connected, the main body (11) being a columnar structure and the cross-sectional area of ​​the main body (11) along its radial direction being larger than the maximum cross-sectional area of ​​the first protrusion (15) along the radial direction of the main body (11), the main body (11) and the first protrusion (15) being coaxially arranged, the two ends of the main body (11) being an input end and an output end respectively, the output end being fixedly connected to the first protrusion (15), and the input end being used for connecting to a first device; The output end of the main body (11) is provided with a vibration coupling surface (12), the vibration coupling surface (12) is a planar structure and abuts against a second device to transmit ultrasonic vibrations, a groove (13) is provided on the vibration coupling surface (12), the groove (13) and the vibration coupling surface (12) are both coaxially arranged with the main body (11), and the groove (13) is fixedly connected to the first protrusion (15).

2. The high-efficiency vibration transmission horn according to claim 1, characterized in that: The first protrusion (15) comprises a thread post (151) and a boss (152), the thread post (151) is fixedly connected to the boss (152), and the boss (152) is fixedly connected to the main body (11); The thread column (151) is a cylindrical structure and has a thread on its outer surface; The boss (152) is a columnar structure.

3. The high-efficiency vibration transmission horn according to claim 1, characterized in that: The main body (11) comprises a first shaft portion (112) and a second shaft portion (113); the first shaft portion (112) and the second shaft portion (113) are fixedly connected and coaxially arranged; the outer diameter of the second shaft portion (113) is greater than or equal to that of the first shaft portion (112); and the second shaft portion (113) is arranged at an output end or an input end of the main body (11).

4. The high-efficiency vibration transmission horn according to claim 3 is characterized in that: The cross section of the first shaft portion (112) along the radial direction of the main body (11) is any one of a circular shape and a rectangular shape; The cross section of the second shaft portion (113) along the radial direction of the main body (11) is any one of a circular shape and a rectangular shape.

5. The high-efficiency vibration transmission horn according to claim 1, characterized in that: The first protrusion (15) is a solid structure or a hollow structure.

6. The high-efficiency vibration transmission horn according to claim 1, characterized in that: One or more groups of spanner grooves (14) are symmetrically arranged on the outer wall of the main body (11) along its axial direction.

7. The high-efficiency vibration transmission horn according to claim 1, characterized in that: A wire hole structure is coaxially arranged inside the input end of the main body (11), and the main body (11) is adapted to and connected to the first device through the wire hole structure.

8. An ultrasonic metal welding device, characterized in that: It comprises an ultrasonic transducer (4), an ultrasonic welding head (5), a welding head resonance fixture (6) and a vibration transmission and amplitude modulation rod (1) as described in any one of claims 1 to 7, wherein the vibration coupling surface (12) is in contact with the ultrasonic welding head (5), the first protrusion (15) penetrates and passes through the ultrasonic welding head (5) and the welding head resonance fixture (6) in sequence, the thread column (151) is threadedly connected to the welding head resonance fixture (6), and the ultrasonic welding head (5) is fastened by the vibration transmission and amplitude modulation rod (1) and the welding head resonance fixture (6), the ultrasonic transducer (4) is connected to the input end of the vibration transmission and amplitude modulation rod (1), and the ultrasonic vibration is transmitted to the ultrasonic welding head (5) through the vibration transmission and amplitude modulation rod (1).

9. An ultrasonic metal welding device, characterized in that: The invention comprises an ultrasonic transducer (4), an ultrasonic welding head (5), a welding head resonance fixture (6), a resonance rod (3) and a vibration transmission and amplitude modulation rod (1) as claimed in any one of claims 1 to 7, wherein the vibration coupling surface (12) is in contact with the ultrasonic welding head (5), the first protrusion (15) penetrates and passes through the ultrasonic welding head (5), the welding head resonance fixture (6) and the resonance rod (3) in sequence, the thread column (151) is threadedly connected to the resonance rod (3), the ultrasonic welding head (5) is fastened to the welding head resonance fixture (6) through the vibration transmission and amplitude modulation rod (1) and the resonance rod (3), the ultrasonic transducer (4) is connected to the input end of the vibration transmission and amplitude modulation rod (1), and the ultrasonic vibration is transmitted to the ultrasonic welding head (5) through the vibration transmission and amplitude modulation rod (1).

10. An ultrasonic metal welding device, characterized in that: The ultrasonic horn (5) comprises an ultrasonic transducer (4), an ultrasonic horn (5), a horn resonance fixture (6), a resonance rod (3), and a vibration transmission and amplitude modulation rod (1) as claimed in any one of claims 1 to 7, wherein the two sides of the horn resonance fixture (6) are respectively in contact with the vibration coupling surface (12) and the resonance rod (3), the ultrasonic horn (5) is arranged in the clamping opening of the horn resonance fixture (6), the first protrusion (15) penetrates and passes through the ultrasonic horn (5), the horn resonance fixture (6) and the resonance rod (3) in sequence, the thread column (151) is threadedly connected to the resonance rod (3), the ultrasonic horn (5) is fastened to the horn resonance fixture (6) through the vibration transmission and amplitude modulation rod (1) and the resonance rod (3), the ultrasonic transducer (4) is connected to the input end of the vibration transmission and amplitude modulation rod (1), and the ultrasonic vibration is transmitted to the ultrasonic horn (5) through the vibration transmission and amplitude modulation rod (1).

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