A double peak roller welding structure

Abstract

The present application discloses a double-peak roller welding structure, which relates to the technical field of roller welding equipment, and includes: a first roller welding assembly and a second roller welding assembly, the first roller welding assembly and the second roller welding assembly are arranged relatively, the first roller welding assembly includes a first welding head and a first welding seat, the second roller welding assembly includes a second welding head and a second welding seat, the first welding head and the second welding seat are arranged correspondingly, and the second welding head and the first welding seat are arranged correspondingly; a first wave-generating assembly and a second wave-generating assembly, the first wave-generating assembly is connected to the first welding head, and the second wave-generating assembly is connected to the second welding head, which is used to transmit ultrasonic vibration; a first rotating assembly and a second rotating assembly, the first rotating assembly is connected to the first welding head, and the second rotating assembly is connected to the second welding head, which is used to transmit rotation. By providing a welding head and a welding pad on the roller welding assembly, the two roller welding assemblies are respectively connected to a wave-generating assembly, so that one wave-generating assembly can transmit ultrasonic vibration to one welding head, thereby avoiding the consumption of ultrasonic vibration between welding heads.

Description

Technical Field

[0001] The present application relates to the technical field of roller welding equipment, and in particular to a double-peak roller welding structure. Background Art

[0002] Roller welding, also known as girth welding, is a technology that welds metal plates, pipes and other materials by rolling and pressing the welding disc. Roller welding clamps the two components to be welded between hot-rolled steel wheels, and uses the rotation and pressing of the hot-rolled steel wheels to form a local plastic deformation area between the hot-rolled steel wheels and the components, causing plastic deformation of the two components and welding.

[0003] Double-peak roller welding is a roller welding structure that can weld two welds on the weldment at the same time. This technology is mainly used for welding two or three layers of foil. It is necessary to produce two continuous weld marks on the product to be welded to enhance the bonding strength and reduce the bonding resistance between materials. The existing implementation scheme is to make two pads on the same welding head assembly so that two weld marks can be produced simultaneously during welding. Due to the large size and spacing of the pads, during the ultrasonic roller welding process, the vibration of the sound wave is consumed by the pad at the front end, resulting in the pad at the rear end not being able to obtain sufficient sound wave energy, resulting in inconsistent welding effects of the two pads. In order to ensure the welding effect, only low-frequency vibration can be used for processing. If high-frequency vibration is used, the vibration frequencies of the two pads will differ greatly, resulting in poor applicability of roller welding. Summary of the invention

[0004] In order to solve the problem that during the double-peak roller welding process, two welding pads on the same welding head assembly cannot be processed at a higher frequency due to vibration consumption, the present application provides a double-peak roller welding structure.

[0005] A double-peak roller welding structure provided in this application adopts the following technical solution:

[0006] A double peak roller welding structure comprises:

[0007] A first roller welding assembly and a second roller welding assembly, wherein the first roller welding assembly and the second roller welding assembly are arranged opposite to each other, the first roller welding assembly comprises a first welding head and a first welding seat, the second roller welding assembly comprises a second welding head and a second welding seat, the first welding head and the second welding seat are arranged correspondingly, and the second welding head and the first welding seat are arranged correspondingly;

[0008] A first wave-generating component and a second wave-generating component, wherein the first wave-generating component is connected to the first welding head, and the second wave-generating component is connected to the second welding head, for transmitting ultrasonic vibration;

[0009] A first rotating assembly and a second rotating assembly, wherein the first rotating assembly is connected to the first welding head, and the second rotating assembly is connected to the second welding head, for transmitting rotation.

[0010] By adopting the above technical solution, a welding head and a welding pad are provided on the roller welding assembly, so that the two welding heads are respectively provided on two different roller welding assemblies. When the two roller welding assemblies are close to each other, the welding heads can cooperate with the corresponding welding pads for roller welding. The two roller welding assemblies are respectively connected to a wave generating assembly, so that one wave generating assembly can transmit ultrasonic vibration to one welding head, thereby avoiding the consumption of vibration. Moreover, since the welding head is controlled by a single wave generating assembly, the vibration frequency of a single welding head can be adjusted as needed, thereby improving the applicability of roller welding. The rotating assembly can rotate the welding head, thereby generating high temperature through vibration and rotation, so that the solder melts and welds.

[0011] Optionally, the first welding head includes a first welding shaft, a first rotating circle and a first welding pad, the first welding shaft is connected to the first wave-generating component, the first rotating circle is arranged on the outside of the first welding shaft, and is respectively connected to the first welding shaft and the first rotating component, a first air-avoiding cavity is formed between the first rotating circle and the first welding shaft to reduce ultrasonic vibration loss, the first welding pad is connected to the first welding shaft, and is arranged corresponding to the second welding seat for roller welding.

[0012] Optionally, the second welding head includes a second welding shaft, a second rotating circle and a second welding pad, the second welding shaft is connected to the second wave generating assembly, the second rotating circle is arranged on the outside of the second welding shaft and is respectively connected to the second welding shaft and the second rotating assembly, a second air-avoiding cavity is formed between the second rotating circle and the second welding shaft to reduce ultrasonic vibration loss, the second welding pad is connected to the second welding shaft and is arranged corresponding to the first welding seat for roller welding.

[0013] By adopting the above technical solution, the welding shaft is the ultrasonic vibration transmission structure of the welding head, and the wave generating component is connected to the welding shaft, so that the ultrasonic vibration can be well transmitted to the welding pad. The rotating ring is connected to the rotating component, and is used to receive the rotation transmitted by the rotating component, thereby driving the welding pad to rotate. The rotating ring is set on the outside of the welding shaft. While being connected to the welding shaft, the air-avoiding cavity formed with the welding shaft can reduce the consumption caused by the connection of the rotating component during the transmission of ultrasonic vibration along the welding shaft, ensure the accurate control of the roller welding process, and improve the energy utilization rate of the double-peak roller welding structure.

[0014] Optionally, the first roller welding assembly further includes two first bearing seats, which are disposed at both ends of the first welding head and connected to the first rotating circle.

[0015] Optionally, the second roller welding assembly further includes two second bearing seats, and the second bearing seats are disposed at both ends of the second welding head and connected to the second rotating circle.

[0016] By adopting the above technical solution, the bearing seat is used to support the welding head. Through the connection with the rotating circle, the ultrasonic vibration transmitted by the welding shaft will not be excessively consumed by the connection of the bearing seat, thereby ensuring the connection support of the welding head while ensuring the stability of the ultrasonic vibration transmission.

[0017] Optionally, the first welding head also includes a first connecting ring, which is connected to the first rotating circle and is arranged on the outside of the first rotating circle. A first buffer cavity is formed between the first connecting ring and the first rotating circle. The first rotating circle is connected to the first welding seat to weaken the influence of the vibration of the second roller welding assembly on the first roller welding assembly.

[0018] Optionally, the second welding head also includes a second connecting ring, which is connected to the second rotating circle and is arranged on the outside of the second rotating circle. A second buffer cavity is formed between the second connecting ring and the second rotating circle. The second rotating circle is connected to the second welding seat to weaken the influence of the vibration of the first roller welding assembly on the second roller welding assembly.

[0019] By adopting the above technical solution, the connecting ring is used to connect the welding seat and the welding head. The welding head and the welding seat of the same roller welding assembly rotate synchronously to improve the effect of ultrasonic roller welding. However, during the roller welding process of the welding seat, the corresponding welding head transmits vibration to the welding seat due to contact with the solder. The two different vibrations will affect the ultrasonic vibration transmission of the welding head. The buffer cavity is created by the connecting ring, so that the vibration transmitted from the relative roller welding assembly to the welding seat is buffered and eliminated, thereby avoiding the impact on the vibration transmission of the welding shaft and ensuring the stability of the roller welding process.

[0020] Optionally, two feeding rollers are further included, and the feeding rollers are arranged on both sides of the first roller welding assembly and are used to transport solder between the first roller welding assembly and the second roller welding assembly.

[0021] By adopting the above technical solution, the feed rod is used to transfer the solder between the roller welding components, so that the double-peak roller welding structure can continuously weld the solder, thereby improving the welding efficiency.

[0022] Optionally, it also includes a first moving component, which includes a telescopic device. The first roller welding component, the first wave-generating component and the first rotating component are connected to the telescopic device. The telescopic device controls the movement of the first roller welding component relative to the second roller welding component to adjust the distance between the first roller welding component and the second roller welding component.

[0023] By adopting the above technical solution, since the roller welding assembly, the wave generating assembly and the rotating assembly are connected to each other and transmit ultrasonic vibration or rotation, the three need to remain relatively fixed. The first roller welding assembly, the first wave generating assembly and the first rotating assembly are moved as a whole by the telescopic device, and moved closer to or away from the second roller welding assembly, thereby adjusting the distance between the first roller welding assembly and the second roller welding assembly, so that the roller welding structure can process solders of different thicknesses, thereby improving the application range of the roller welding structure.

[0024] Optionally, it also includes a second moving component, which includes a second track, and the second roller welding component, the second wave generating component and the second rotating component move on the second track; the first moving component also includes a first track, and the first roller welding component, the first wave generating component and the first rotating component move on the first track; the first track is parallel to the second track to increase the range of roller welding processing.

[0025] By adopting the above technical solution, the two roller welding assemblies can slide on relatively parallel tracks, thereby increasing the processing range of roller welding. In addition, in conjunction with the feeding of the feed roller, the movable roller welding assembly can also perform roller welding operations on curved welds, thereby improving the applicability of roller welding.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. A welding head and a welding pad are provided on the roller welding assembly, so that the two welding heads are respectively provided on two different roller welding assemblies. When the two roller welding assemblies are close to each other, the welding heads can cooperate with the corresponding welding pads to perform roller welding. The two roller welding assemblies are respectively connected to a wave generating assembly, so that one wave generating assembly can transmit ultrasonic vibration to one welding head, thereby avoiding the consumption of vibration. Moreover, since the welding head is controlled by a single wave generating assembly, the vibration frequency of a single welding head can be adjusted as needed, thereby improving the applicability of roller welding.

[0028] 2. The welding shaft is used to transmit ultrasonic vibration, and the rotating ring is used to transmit rotation. The rotating ring is set on the outside of the welding shaft and connected to the welding shaft. At the same time, an air-avoiding cavity is formed between the rotating ring and the welding shaft. The air-avoiding cavity can reduce the consumption caused by connecting the rotating components during the transmission of ultrasonic vibration along the welding shaft, ensure the accurate control of the roller welding process, and improve the energy utilization rate of the double-peak roller welding structure;

[0029] 3. However, during the roller welding process, the corresponding welding head transmits vibration to the welding seat due to contact with the solder. The two different vibrations will affect the ultrasonic vibration transmission of the welding head. The buffer cavity is created by the connecting ring to buffer and eliminate the vibration transmitted from the relative roller welding assembly to the welding seat, thereby avoiding the impact on the vibration transmission of the welding shaft and ensuring the stability of the roller welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 2 It is a schematic diagram of the overall structure of the first roller welding assembly, the first wave generating assembly and the first rotating assembly in the embodiment of the present application;

[0032] Figure 3 It is a schematic diagram of the overall structure of the second roller welding assembly, the second wave generating assembly and the second rotating assembly of the embodiment of the present application;

[0033] Figure 4 is a front view of a first roller welding assembly and a second roller welding assembly according to an embodiment of the present application;

[0034] Figure 5 is a schematic structural diagram of a first roller welding assembly according to an embodiment of the present application;

[0035] Figure 6 is a schematic diagram of the exploded structure of the first roller welding assembly of the embodiment of the present application;

[0036] Figure 7 is a schematic cross-sectional structural diagram of a first roller welding assembly according to an embodiment of the present application;

[0037] Figure 8 is a schematic structural diagram of a second roller welding assembly according to an embodiment of the present application;

[0038] Fig. 9 is a schematic diagram of the exploded structure of the second roller welding assembly of the embodiment of the present application;

[0039] Fig.10 It is a schematic diagram of the cross-sectional structure of the second roller welding assembly of the embodiment of the present application.

[0040] Figure numerals: 1, first roller welding assembly; 11, first welding head; 111, first welding shaft; 112, first rotating circle; 113, first welding pad; 114, first connecting ring; 115, first clamping hole; 116, first air-avoiding cavity; 117, first buffer cavity; 12, first welding seat; 121, first clamping block; 13, first bearing seat; 131, first bearing; 2, second roller welding assembly; 21, second welding head; 211, second welding shaft; 212, second rotating circle; 213, second welding pad; 214, second connecting ring; 215, second clamping hole; 216, second air-avoiding cavity; 217, second buffer cavity; 22, second Welding seat; 221, second clamping block; 23, second bearing seat; 231, second bearing; 3, first wave-generating assembly; 31, first ultrasonic connection port; 32, first ultrasonic transmission member; 4, second wave-generating assembly; 41, second ultrasonic connection port; 42, second ultrasonic transmission member; 5, first rotating assembly; 51, first rotating shaft; 52, first rotating motor; 6, second rotating assembly; 61, second rotating shaft; 62, second rotating motor; 7, first moving assembly; 71, telescopic device; 72, first track; 73, first motor; 8, second moving assembly; 81, second track; 82, second motor; 83, support frame; 9, feeding rod. DETAILED DESCRIPTION

[0041] The present application is further described in detail below in conjunction with the accompanying drawings.

[0042] A double peak roller welding structure, referring to Figure 1 , 2 and 3, comprising a first roller welding assembly 1, a second roller welding assembly 2, a first wave-generating assembly 3, a second wave-generating assembly 4, a first rotating assembly 5, a second rotating assembly 6, a first moving assembly 7, a second moving assembly 8 and a feeding roller 9. The first roller welding assembly 1, the first wave-generating assembly 3 and the first rotating assembly 5 are all connected to the first moving assembly 7, and the first roller welding assembly 1 and the second roller welding assembly 2 are arranged oppositely, and the solder passes between the first roller welding assembly 1 and the second roller welding assembly 2, thereby being processed by ultrasonic roller welding. The first rotating assembly 5 and the second rotating assembly 6 are arranged oppositely.

[0043] Referring to the figure, the first moving assembly 7 includes a telescopic device 71, a first track 72 and a first motor 73. The first track 72 is arranged on the telescopic device 71. The first roller welding assembly 1, the first wave-transmitting assembly 3 and the first rotating assembly 5 are all arranged on the first track 72 and can slide on the first track 72. The upper end of the first roller welding assembly 1 is the first wave-transmitting assembly 3, and the lower end is the first rotating assembly 5. The first motor 73 is arranged below the first rotating assembly 5, and is used to promote the movement of the first roller welding assembly 1, the first wave-transmitting assembly 3 and the first rotating assembly 5 on the first track 72. The second moving assembly 8 includes a second track 81, a second motor 82 and a support frame 83. The support frame 83 is fixedly connected to the second track 81. The second track 81 is parallel to the first track 72 and is in a fixed state. The second roller welding assembly 2, the second wave assembly 4 and the second rotating assembly 6 are all arranged on the second track 81 and can slide on the second track 81. The upper end of the second roller welding assembly 2 is the second wave assembly 4, and the lower end is the second rotating assembly 6. The second motor 82 is arranged below the second rotating assembly 6 to promote the movement of the second roller welding assembly 2, the second wave assembly 4 and the second rotating assembly 6 on the second track 81. Under the push of the telescopic device 71, the first roller welding assembly 1 can approach or move away from the second roller welding assembly 2. And under the push of the first track 72 and the second track 81, the first roller welding assembly 1 and the second roller welding assembly 2 can move up and down, thereby changing the vertical position of the roller welding process, and can achieve the purpose of bending welding with the cooperation of the feeding roller 9, thereby improving the application range of the roller welding structure.

[0044] Reference Figure 1 There are two feeding rods 9, which are respectively arranged on both sides of the first roller welding assembly 1. The solder is pushed by the two feeding rods 9 and passes between the first roller welding assembly 1 and the second roller welding assembly 2, so that the solder can be continuously roller welded, thereby improving the roller welding processing efficiency.

[0045] Reference Figure 4 , 58, the structures of the first roller welding assembly 1 and the second roller welding assembly 2 are similar, but the installation positions of the two are opposite. The first welding assembly includes a first welding head 11, a first welding seat 12 and two first bearing seats 13, wherein the first welding head 11 and the first welding seat 12 are arranged between the two first bearing seats 13, and the second welding assembly includes a second welding head 21, a second welding seat 22 and two second bearing seats 23, wherein the second welding head 21 and the second welding seat 22 are arranged between the two second bearing seats 23, wherein the first welding head 11 is arranged corresponding to the second welding seat 22, and the second welding head 21 is arranged corresponding to the first welding seat 12. By arranging the two welding heads on different roller welding assemblies respectively, the wave generating assembly and the rotating assembly can control one welding head respectively, avoiding the ultrasonic vibration consumption caused by the welding heads being installed on the same assembly together, and by controlling the vibration and rotation of the welding heads respectively, vibrations of different frequencies and rotations of different speeds can be applied to the two welding heads, so that the two welds of the double-peak roller welding are welded in different states, thereby improving the application range of the roller welding structure.

[0046] Reference Figure 5 , 6 7, the first welding head 11 includes a first welding shaft 111, a first rotating circle 112, a first welding pad 113 and a first connecting circle 114. The first welding shaft 111 is a supporting structure of the first welding head 11 and also a structure for transmitting ultrasonic vibration. The first wave generating component 3 is connected to the first welding shaft 111. The first welding pad 113 is arranged in the middle of the first welding shaft 111, and the first welding pad 113 is arranged opposite to the second welding seat 22, and is used to cooperate with the second welding seat 22 to perform roller welding on the solder. The first rotating circle 112 is arranged on the outside of both ends of the first welding shaft 111, and a first air-avoiding cavity 116 is formed between the first welding shaft 111. The first rotating circle 112 is connected to the first bearing seat 13 on the outside, and a first bearing 131 is provided between the first bearing seat 13 and the first rotating circle 112, so that the first welding head 11 can rotate freely while supporting the first welding head 11, and the first rotating circle 112 at one end is connected to the first rotating component 5 for transmitting rotation to the first welding head 11. Through the formed first air-avoiding cavity 116, the ultrasonic vibration transmitted in the first welding shaft 111 can be less transmitted to the first bearing seat 13 or the first rotating component 5, so that most of the ultrasonic vibration acts on the first welding pad 113, thereby ensuring the effect of the roller welding process and improving the energy utilization efficiency of the roller welding equipment.

[0047] Reference Figure 5 , 67, the first rotating circle 112 near the first welding seat 12 is also connected to the first connecting circle 114, the first connecting circle 114 is arranged on the outside of the first rotating circle 112, and a first buffer cavity 117 is formed between the first connecting circle 114 and the first rotating circle 112. The first rotating circle 112 is provided with a first clamping hole 115, and the first welding seat 12 is connected with a first clamping block 121, and the first clamping block 121 is clamped in the first clamping hole 115, so that the first welding seat 12 can rotate together with the first welding head 11, so that the solder can be melted and welded more quickly between the welding head and the welding seat, thereby improving the efficiency of the roller welding process. During the roller welding process, the second welding head 21 will transmit the vibration to the first welding seat 12 through the solder. By providing the first connecting ring 114 and the first buffer cavity 117, the vibration transmitted from the second welding head 21 is buffered and weakened in the first buffer cavity 117. Since the vibration frequencies are different when the two roller welding components are processed, the first buffer cavity 117 can avoid the influence of different vibrations and ensure the stability of the roller welding process.

[0048] Reference Figure 8 , 9 10, the second welding head 21 includes a second welding shaft 211, a second rotating circle 212, a second welding pad 213 and a second connecting circle 214. The structure of the second welding head 21 is similar to that of the first welding head 11, except that the second welding seat 22 is installed on the other side, so that the first welding pad 113 corresponds to the second welding seat 22, and the second welding pad 213 corresponds to the first welding seat 12. The second wave generating component 4 is connected to the second welding shaft 211, and the second rotating circle 212 is arranged on the outer side of both ends of the second welding shaft 211, and a second air-avoiding cavity 216 is formed between the second welding shaft 211. The outer side of the second rotating circle 212 is connected to the second bearing seat 23, and a second bearing 231 is arranged between the second bearing seat 23 and the second rotating circle 212. The second rotating circle 212 is connected to the second rotating component 6 for transmitting rotation to the second welding head 21. A second connecting ring 214 is also connected to the second rotating circle 212 near the second welding seat 22. The second connecting ring 214 is arranged outside the second rotating circle 212, and a second buffer cavity 217 is formed between the second connecting ring 214 and the second rotating circle 212. A second clamping hole 215 is provided on the second rotating circle 212. A second clamping block 221 is connected to the second welding seat 22. The second clamping block 221 is clamped in the second clamping hole 215, so that the second welding seat 22 can rotate together with the second welding head 21. The second air-avoiding cavity 216 and the second buffer cavity 217 have the same effect as the first air-avoiding cavity 116 and the first buffer cavity 117. By providing the air-avoiding cavity, the ultrasonic vibration transmission of the roller welding assembly is less affected by rotation and support. By providing the buffer cavity, the welding head is not affected by the vibration of the relative roller welding assembly, thereby ensuring the stability of the roller welding process.

[0049] Reference Figure 2 and3 The first wave-generating assembly 3 includes a first ultrasonic connection port 31 and a first ultrasonic transmission member 32. The first ultrasonic transmission member 32 is connected to the first welding shaft 111. The first ultrasonic connection port 31 is provided at the upper end of the first wave-generating assembly 3 for receiving ultrasonic vibration and transmitting it to the first roller welding assembly 1 through the first ultrasonic transmission member 32. The second wave-generating assembly 4 includes a second ultrasonic connection port 41 and a second ultrasonic transmission member 42. The second ultrasonic transmission member 42 is connected to the second welding shaft 211. The second ultrasonic connection port 41 is provided at the upper end of the second wave-generating assembly 4 for receiving ultrasonic vibration and transmitting it to the second roller welding assembly 2 through the second ultrasonic transmission member 42. The first rotating assembly 5 includes a first rotating shaft 51 and a first rotating motor 52. The first rotating shaft 51 is connected to the first rotating circle 112. The first rotating motor 52 is used to drive the first rotating shaft 51 to rotate. The second rotating assembly 6 includes a second rotating shaft 61 and a second rotating motor 62. The second rotating shaft 61 is connected to the second rotating circle 212. The second rotating motor 62 is used to drive the second rotating shaft 61 to rotate. The rotation and ultrasonic vibration are transmitted to the roller welding assembly through the wave generating assembly and the rotating assembly, so that the roller welding can be carried out smoothly.

[0050] The implementation principle of the embodiment of the present application is as follows: by installing a welding pad and a welding seat on each of the two roller welding assemblies, a vibration can be applied to each welding pad during double-peak roller welding, which is conducive to ensuring that both welding pads can maintain a better roller welding effect, and the vibration and rotation of the two roller welding assemblies can be adjusted according to needs, thereby improving the stability of the double-peak roller welding structure. The solder is pushed by the feed roller and passes between the roller welding assemblies, thereby generating local high temperature to achieve melting welding under the vibration and rotation of the welding pad and the support of the welding seat, and the welding pad generates ultrasonic vibration through the wave-generating assembly and rotates through the rotating assembly, thereby achieving welding of two welds.

[0051] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A double peak roller welding structure, characterized in that: include: A first roller welding assembly (1) and a second roller welding assembly (2), wherein the first roller welding assembly (1) and the second roller welding assembly (2) are arranged relative to each other, the first roller welding assembly (1) comprises a first welding head (11) and a first welding seat (12), the second roller welding assembly (2) comprises a second welding head (21) and a second welding seat (22), the first welding head (11) and the second welding seat (22) are arranged correspondingly, and the second welding head (21) and the first welding seat (12) are arranged correspondingly; A first wave-generating component (3) and a second wave-generating component (4), wherein the first wave-generating component (3) is connected to the first welding head (11), and the second wave-generating component (4) is connected to the second welding head (21), and is used for transmitting ultrasonic vibrations; A first rotating assembly (5) and a second rotating assembly (6), wherein the first rotating assembly (5) is connected to the first welding head (11), and the second rotating assembly (6) is connected to the second welding head (21), for transmitting rotation; The first welding head (11) comprises a first welding shaft (111), a first rotating circle (112) and a first welding pad (113); the first welding shaft (111) is connected to the first wave generating component (3); the first rotating circle (112) is arranged outside the first welding shaft (111) and is respectively connected to the first welding shaft (111) and the first rotating component (5); a first air-avoiding cavity (116) is formed between the first rotating circle (112) and the first welding shaft (111) to reduce ultrasonic vibration loss; the first welding pad (113) is connected to the first welding shaft (111) and is arranged corresponding to the second welding seat (22) for roller welding.

2. The double-peak roller welding structure according to claim 1, characterized in that: The second welding head (21) comprises a second welding shaft (211), a second rotating circle (212) and a second welding pad (213); the second welding shaft (211) is connected to the second wave generating assembly (4); the second rotating circle (212) is arranged outside the second welding shaft (211) and is respectively connected to the second welding shaft (211) and the second rotating assembly (6); a second air-avoiding cavity (216) is formed between the second rotating circle (212) and the second welding shaft (211) to reduce ultrasonic vibration loss; the second welding pad (213) is connected to the second welding shaft (211), is arranged corresponding to the first welding seat (12), and is used for roller welding.

3. The double-peak roller welding structure according to claim 1, characterized in that: The first roller welding assembly (1) further comprises two first bearing seats (13), wherein the first bearing seats (13) are arranged at two ends of the first welding head (11) and connected to the first rotating circle (112).

4. The double-peak roller welding structure according to claim 2, characterized in that: The second roller welding assembly (2) further comprises two second bearing seats (23), wherein the second bearing seats (23) are arranged at two ends of the second welding head (21) and connected to the second rotating circle (212).

5. The double-peak roller welding structure according to claim 1, characterized in that: The first welding head (11) further comprises a first connecting ring (114), the first connecting ring (114) being connected to the first rotating ring (112) and being arranged outside the first rotating ring (112), a first buffer cavity (117) being formed between the first connecting ring (114) and the first rotating ring (112), and the first rotating ring (112) being connected to the first welding seat (12) so as to reduce the influence of the vibration of the second roller welding assembly (2) on the first roller welding assembly (1).

6. The double-peak roller welding structure according to claim 2, characterized in that: The second welding head (21) further comprises a second connecting ring (214), the second connecting ring (214) being connected to the second rotating ring (212) and being arranged outside the second rotating ring (212), a second buffer cavity (217) being formed between the second connecting ring (214) and the second rotating ring (212), and the second rotating ring (212) being connected to the second welding seat (22) so as to reduce the influence of the vibration of the first roller welding assembly (1) on the second roller welding assembly (2).

7. The double-peak roller welding structure according to claim 1, characterized in that: It also comprises two feeding rollers, which are arranged on both sides of the first roller welding assembly (1) and are used to transport solder between the first roller welding assembly (1) and the second roller welding assembly (2).

8. The double-peak roller welding structure according to claim 1, characterized in that: The invention also comprises a first moving assembly (7), wherein the first moving assembly (7) comprises a telescopic device (71), the first roller welding assembly (1), the first wave-generating assembly (3) and the first rotating assembly (5) are connected to the telescopic device (71), and the telescopic device (71) controls the movement of the first roller welding assembly (1) relative to the second roller welding assembly (2), so as to adjust the distance between the first roller welding assembly (1) and the second roller welding assembly (2).

9. The double-peak roller welding structure according to claim 8, characterized in that: The invention also comprises a second moving assembly (8), wherein the second moving assembly (8) further comprises a second track (81), on which the second roller welding assembly (2), the second wave-generating assembly (4) and the second rotating assembly (6) move; the first moving assembly (7) further comprises a first track (72), on which the first roller welding assembly (1), the first wave-generating assembly (3) and the first rotating assembly (5) move; the first track (72) is parallel to the second track (81) to increase the range of roller welding processing.

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