An ultrasonic metal welding apparatus

Abstract

The application relates to an ultrasonic metal welding device, belonging to the technical field of ultrasonic welding, which comprises a rack, a function module, an ultrasonic triple piece and a guide mechanism, the rack is used for bearing and fixing; the function module is fixed on the rack, and the function module is used for providing a welding energy source and controlling a welding action; the ultrasonic triple piece is connected with the function module, the ultrasonic triple piece comprises a welding head, and the welding head is used for executing the welding action; the guide mechanism is arranged between the welding head and the rack and is used for driving the welding head to approach a metal piece to be welded; the guide mechanism comprises a linear guide rail and a connecting assembly, the linear guide rail is fixed on the rack, the connecting assembly connects the linear guide rail and the welding head to enable the welding head to move along the length direction of the linear guide rail, and the track surface of the linear guide rail faces the vibration direction of the welding head and is parallel to the vibration direction. The application has the effects of improving the transmission of the reaction vibration of the ultrasonic triple piece of the ultrasonic metal welding device, prolonging the service life of the guide rail and improving the reliability of the whole machine.

Description

Technical Field

[0001] This application relates to the field of ultrasonic welding technology, and in particular to an ultrasonic metal welding device. Background Technology

[0002] Ultrasonic metal welding equipment utilizes high-frequency vibration energy to generate frictional heat and plastic deformation at the metal contact surface, thereby achieving solid-state welding. The equipment mainly consists of a frame, functional modules mounted on the frame, and an ultrasonic triplet. The functional modules include a generator and control system, which connect to the ultrasonic triplet to achieve the welding function. The ultrasonic triplet comprises a welding head, an amplitude modulator, and a transducer; these three components work together in resonance to form the core energy transfer path. The transducer of the ultrasonic triplet converts the high-frequency signal into a small-amplitude mechanical vibration of the same frequency. This vibration is then amplified by an amplitude transformer, and finally transmitted to the workpiece surface through the welding head. Welding is achieved through high-frequency frictional heat generation and plastic deformation.

[0003] During welding, the ultrasonic triplet generates high-frequency lateral vibrations of at least 20,000 times per second. These lateral vibrations not only act on the contacting workpiece but also transmit reaction forces to the guide rails connected to the welding head and the frame. Therefore, the strength and lifespan of the bolts and guide rails on the frame where the welding head is mounted are critical. Existing ultrasonic metal welding equipment uses two linear guide rails on the frame, with their sliders fixed in the same direction. The welding head is mounted on the sliders, and the linear movement of the sliders brings the welding head closer to the workpiece for welding. The linear guide rail surface is perpendicular to the direction of the welding head's vibration. The reaction force generated by the lateral vibration acts as a lateral shear force on the guide rails and connecting bolts. The bolts and linear guide rails bear this lateral shear force, accelerating their deformation and wear. Their lifespan directly affects the overall lifespan and reliability of the ultrasonic metal welding equipment. Utility Model Content

[0004] In order to improve the transmission of reaction vibration of the ultrasonic triplet in ultrasonic metal welding equipment, increase the life of the guide rail and the overall reliability of the machine, this application provides an ultrasonic metal welding equipment.

[0005] The ultrasonic metal welding equipment provided in this application adopts the following technical solution: An ultrasonic metal welding device, comprising: The frame is used for support and fixation; A functional module, fixed to the frame, is used to provide welding energy and control welding actions; An ultrasonic triplet, which is connected to the functional module, includes a welding head for performing welding actions; A guiding mechanism is disposed between the welding head and the frame to drive the welding head closer to the metal part to be welded. The guiding mechanism includes a linear guide rail and a connecting assembly. The linear guide rail is fixed on the frame. The connecting assembly connects the linear guide rail and the welding head so that the welding head moves along the length of the linear guide rail. The track surface of the linear guide rail is parallel to the vibration direction of the welding head.

[0006] By adopting the above scheme, the track surface of the linear guide is aligned parallel to the vibration direction of the welding head. The lateral vibration force generated by the ultrasonic triplet is aligned with the guiding direction of the linear guide, transforming the force on the guide from lateral shear force to tensile and compressive force. The guide and connecting bolts no longer bear the lateral shear force that easily leads to deformation and wear, significantly reducing the deformation and wear rate of these components and substantially increasing the service life of the guide. This extended guide life eliminates the need for frequent guide component replacements during long-term use, reducing maintenance costs and downtime. Furthermore, the improved reliability of the guide and connecting components enhances the overall operational stability of the equipment, reducing problems such as decreased welding precision and unstable welding quality caused by guide wear, thereby improving the overall reliability of the machine.

[0007] Preferably, the linear guide rail includes a first guide rail, a first slider, a second guide rail, and a second slider; The track surfaces of the first guide rail and the second guide rail are fixed to the frame with opposite orientations. The first slider is slidably connected to the first guide rail, and the second slider is slidably connected to the second guide rail. The two ends of the connecting component are respectively connected to the first slider and the second slider, and the welding head is connected to the middle of the connecting component.

[0008] By adopting the above scheme, the track surfaces of the first and second guide rails face opposite directions. When the welding head of the ultrasonic triplet generates high-frequency lateral vibration, the vibration is transmitted to the connecting assembly and acts on the first and second guide rails respectively through the first and second sliders. The forces acting on the two guide rails are in opposite directions, achieving mechanical balance. Compared to a single guide rail bearing the vibration reaction force, the reverse-direction arrangement of the dual guide rails disperses the force generated by the vibration and utilizes the opposing forces to partially cancel out the vibration influence, further reducing the impact force and deformation risk on the guide rails and connecting components, and further reducing the wear rate of the guide rails. This results in a better improvement in the transmission of the ultrasonic triplet's reaction vibration. The connecting assembly connects the two sliders and supports the welding head, transmitting the mechanical balance effect of the two guide rails to the welding head on one hand, and providing a stable mounting and moving platform for the welding head on the other. The welding head is connected in the middle of the connecting assembly, allowing the vibration force to be evenly distributed on both sides of the guide rails, avoiding uneven force distribution.

[0009] Preferably, the connector includes a first slider fixing plate, a second slider fixing plate, and a welding head fixing plate; The first slider fixing plate and the second slider fixing plate are respectively fixedly connected to the top ends of the first slider and the second slider, and the welding head fixing plate is disposed on the side of the first slider and the second slider; The welding head fixing plate is fixedly connected to the first slider fixing plate and the second slider fixing plate.

[0010] By adopting the above scheme, the first slider fixing plate and the second slider fixing plate are respectively fixed to the top of the first slider and the second slider, making the connection between the slider and the connecting component more stable and more effectively transmitting the vibration force on the slider to the connecting component. The welding head fixing plate is set on the side of the first slider and the second slider and is fixedly connected to the first and second slider fixing plates, forming a stable triangular structural frame. When the welding head of the ultrasonic triplet generates high-frequency lateral vibration, the vibration force is transmitted through the welding head fixing plate to the slider fixing plates on both sides, and then through the slider to the first guide rail and the second guide rail. The stable frame structure can more effectively balance the vibration reaction force, reduce the stress concentration phenomenon of the guide rail and the connecting component caused by vibration, and optimize the transmission path of the ultrasonic triplet's reaction vibration. Because the vibration force is more evenly distributed, the impact force and wear degree of the guide rail are further reduced, extending the service life of the guide rail and reducing the frequency and cost of equipment maintenance.

[0011] Preferably, the welding head fixing plate, the first slider fixing plate, and the second slider fixing plate are an integral part.

[0012] By adopting the above scheme, the connecting component is set as a single piece, that is, the welding head fixing plate, the first slider fixing plate, and the second slider fixing plate are integrally formed, making the entire connecting component a complete load-bearing structure. When the welding head generates high-frequency lateral vibration, the vibration force can be transmitted more smoothly and evenly within the single piece, avoiding vibration energy loss and local stress abrupt changes caused by loose connections between components. The vibration force is more efficiently distributed to the first and second guide rails, making the guide rails more evenly stressed, thereby further optimizing the transmission effect of the ultrasonic triple-unit reaction vibration and reducing the risk of component damage caused by vibration. More uniform vibration transmission and lower stress concentration significantly reduce fatigue damage to the guide rails, significantly extending their service life. The high rigidity and stability of the single piece ensure precise positioning of the welding head during welding, effectively avoiding welding quality fluctuations caused by loose or deformed connecting components, improving product welding accuracy and consistency. At the same time, the overall reliability of the equipment structure is enhanced, the probability of failure caused by vibration during operation is significantly reduced, and the continuous and stable operation of the equipment is guaranteed.

[0013] Preferably, a guide rail fixing plate is provided between the linear guide rail and the frame, one side of the guide rail fixing plate is fixedly connected to the frame, and a guide rail groove is provided on the side of the guide rail fixing plate adjacent to the frame, and the linear guide rail is fixedly connected to the guide rail groove on the guide rail fixing plate.

[0014] By adopting the above scheme, the guide rail fixing plate provides an intermediate transition connection structure for the linear guide rail. The guide rail groove on the side of the guide rail fixing plate enables precise positioning and installation of the linear guide rail, enhances the connection strength between the linear guide rail and the guide rail fixing plate, restricts the movement of the linear guide rail in non-guiding directions, and ensures the guiding accuracy of the linear guide rail under high-frequency vibration. With the assistance of the guide rail fixing plate, the linear guide rail, fixed in the guide rail groove, can more effectively transmit and disperse the vibration force, reducing the impact on itself and the connection points with the frame. When the welding head of the ultrasonic triplet generates high-frequency lateral vibration, the vibration force is transmitted to the linear guide rail through the connecting components. The guide rail fixing plate can effectively disperse the force on the guide rail, preventing the vibration force from directly concentrating on the connection point between the frame and the guide rail. The guide rail groove's limiting and fixing of the linear guide rail also reduces the displacement of the guide rail during vibration, allowing the vibration force to be transmitted more stably along the path of the guide rail fixing plate and the guide rail, thereby optimizing the transmission of the ultrasonic triplet's reaction vibration and reducing the risk of damage to various components due to vibration.

[0015] Preferably, the frame includes a mounting frame and a fixing frame. The functional module and the guide mechanism are respectively fixed to two adjacent sides of the mounting frame. One side of the fixing frame is detachably connected to one side of the mounting frame, and the fixing frame is located on the side of the mounting frame opposite to the functional module and the guide mechanism. The other side of the fixing frame is fixed to the mounting base of the equipment.

[0016] By adopting the above scheme, the frame is configured as a split structure comprising a mounting frame and a fixed frame. Functional modules and guiding mechanisms are mounted on the mounting frame, which is then connected to the fixed frame. The mounting frame and its modules are installed as a whole on the corresponding machine position on the production line via the fixed frame. Specifically, the fixed frame can be the bottom support bracket of the mounting frame, the top suspension bracket of the mounting frame, or a side-mounted bracket on the side of the mounting frame.

[0017] Preferably, a quick-change assembly is further provided between the connecting assembly and the welding head. The quick-change assembly includes a fixed block and a movable block. The fixed block is fixedly connected to the connecting assembly and is provided with an installation through groove. One end of the movable block is slidably connected to the installation through groove. An abutment block that presses against the movable block is provided in the installation through groove. The other end of the movable block is connected to the welding head.

[0018] By adopting the above scheme, when installing the welding head of the ultrasonic triplet, the welding head is first installed on the movable block. Then, the movable block is slid into the fixed block from one end of the mounting slot. At this time, the movable block is hooked into the fixed block. Then, the abutment block is pressed against the movable block to fix it in place, thus completing the installation of the welding head. When disassembling the welding head, the abutment block is first adjusted to loosen its pressure on the movable block. At this time, the movable block is hooked into the fixed block, eliminating the need to hold the ultrasonic triplet by hand and reducing the risk of falling. Then, the movable block is slid out of the mounting slot to complete the disassembly of the welding head. By hooking the movable block in the mounting slot, a single worker can disassemble and replace the welding head, greatly reducing replacement time and operational complexity. Furthermore, by installing the welding head using the quick-change assembly, the structure of the quick-change assembly allows the movable block to adaptively adjust its position within a certain range, effectively buffering and dispersing some vibration energy, avoiding concentrated vibration force on the connection parts, and reducing the risk of loosening of the connection or damage to components due to vibration.

[0019] Preferably, the cross-section of the mounting groove is an inverted right trapezoid, the abutment block is disposed on the right-angle side of the mounting groove, the side of the abutment block facing the middle of the mounting groove is an inclined surface opposite to the inclined surface of the mounting groove, and one end of the movable block is a trapezoidal shape that matches the inclined surface of the mounting groove and the inclined surface of the abutment block.

[0020] By adopting the above scheme, the inverted right-angled trapezoidal mounting slot design, combined with the matching shapes of the abutment block and the movable block, utilizes the wedge-tightening effect generated by the inclined surface structure and the limiting characteristics of the trapezoidal structure to achieve a more stable connection and more convenient operation. When the movable block is inserted into the mounting slot, its trapezoidal end fits against the inclined surface of the mounting slot, and the inclined surface of the abutment block is in close contact with the corresponding inclined surface of the movable block. When the abutment block presses against the movable block, the wedge-tightening force generated by the interaction of the two inclined surfaces can firmly fix the movable block in the mounting slot. Compared with planar contact, this inclined wedge-tightening structure can provide greater friction and fastening force, effectively preventing the movable block from loosening or displacing under high-frequency vibration. The inverted right-angled trapezoidal cross-section of the mounting slot provides both a limiting function for the movable block and creates conditions for the inclined wedge structure. The abutment block is located on one side of the right angle and has an inclined surface in a specific direction. Through its cooperation with the inclined surface of the movable block, it achieves pressure and fastening of the movable block, ensuring the reliability of the connection. One end of the movable block is designed as a trapezoidal truncated platform that matches the mounting slot and the inclined surface of the abutment block, ensuring that it can fit tightly with other components during installation, effectively transmitting vibration force, and facilitating disassembly and assembly.

[0021] Preferably, the end of the abutment block away from the movable block is provided with an adjusting member for adjusting its own position, and the adjusting member is provided with a fastener for fixing itself.

[0022] By adopting the above scheme, the adjusting component is used to adjust the abutment block, so that the abutment block slides within the fixed block. The sliding of the abutment block causes the inclined surface of the abutment block to press against the movable block, thereby fixing the movable block. After adjusting the abutment block, the adjusting component is fixed with fasteners, so that the abutment block is more securely fixed to the movable block.

[0023] Preferably, the quick-change assembly further includes a locking block, which is detachably connected to the fixing block and located at the port of the mounting slot away from the frame. When the locking block is locked to the fixing block, it abuts against the movable block.

[0024] By adopting the above scheme, after the movable block is installed, a locking block is installed on the fixed block, and the positioning block is pressed against the movable block and cooperates with the connecting component to limit the sliding direction of the movable block, thereby further fixing the movable block. Similarly, when disassembling the movable block, the locking block must be removed first.

[0025] In summary, this application has the following beneficial effects: 1. The linear guide rail surface is parallel to the vibration direction of the welding head, which converts the lateral shear force into tensile and compressive forces, avoiding the guide rail and bolts from bearing the lateral shear force that easily causes wear, reducing the deformation and wear rate, extending the life of the guide rail, reducing equipment maintenance costs and downtime, and improving operational stability and welding accuracy.

[0026] 2. The first and second guide rails are set in opposite directions, so that the forces transmitted during vibration are opposite and form a balance, which disperses the impact force and offsets part of the vibration effect, further reducing the risk of wear and deformation; the connecting component carries the welding head in the middle, so that the vibration is evenly distributed to the two guide rails and avoids uneven force.

[0027] 3. The slider fixing plate and the welding head fixing plate form a triangular frame, which stably transmits vibration and balances reaction force, reducing stress concentration; the integrated design of the connecting components improves the uniformity of vibration transmission and structural rigidity, avoids energy loss and local stress abrupt changes, ensures accurate welding head position, and improves welding accuracy and equipment stability.

[0028] 4. The guide rail fixing plate achieves precise positioning and force transmission and dispersion through grooves, avoiding force concentration at the frame connection point; the split frame facilitates module installation; the quick-change component utilizes inclined wedge clamping and trapezoidal limiting structure to enable single-person quick disassembly and assembly of the welding head, buffering vibration energy, preventing loosening, shortening replacement time and improving connection reliability. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application; Figure 2 This is a schematic diagram of the front side of an embodiment of this application; Figure 3This is a schematic diagram of the left side of an embodiment of this application; Figure 4 This is a schematic diagram of the guiding mechanism and ultrasonic triple unit according to an embodiment of this application; Figure 5 This is a structural schematic diagram of the quick-change component according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures: 1. Rack; 11. Mounting bracket; 12. Fixture; 2. Functional modules; 3. Ultrasonic triplet; 31. Transducer; 32. Amplitude modulator; 33. Welding head; 4. Guiding mechanism; 41. Linear guide rail; 411. First guide rail; 412. First slider; 413. Second guide rail; 414. Second slider; 415. Guide rail fixing plate; 416. Guide rail groove; 42. Connecting assembly; 421. First slider fixing plate; 422. Second slider fixing plate; 423. Welding head fixing plate; 5. Quick-change component; 51. Fixing block; 511. Mounting slot; 52. Movable block; 53. Abutment block; 54. Adjusting component; 55. Fastener; 56. Locking block. Detailed Implementation

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0036] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0037] Embodiment 1 of this application discloses an ultrasonic metal welding device.

[0038] Reference Figures 1 to 3An ultrasonic metal welding device includes a frame 1, functional modules 2, an ultrasonic triplet 3, and a guiding mechanism 4. Functional modules 2 provide welding energy and control the welding action. The ultrasonic triplet 3 includes a transducer 31, an amplitude modulator 32, and a welding head 33. The transducer 31 connects to the functional module 2 to convert sound waves into mechanical vibrations. The amplitude modulator 32 amplifies the vibration amplitude and transmits it to the welding head 33, which then performs the welding action on the metal workpiece. The frame 1 is used for support and fixation, including a mounting frame 11 and a fixing frame 12. The mounting frame 11 is used to mount the modules. In this embodiment, the fixing frame 12 is detachably connected to the bottom of the mounting frame 11, serving to support the mounting frame 11. In other equivalent embodiments, it can also be a top suspension bracket for the mounting frame 11, or a side-mounted bracket for the side of the mounting frame 11. Functional module 2 is installed on top of mounting bracket 11. One side of mounting bracket 11 is the front panel. Guide mechanism 4 is installed on the front panel. The welding head 33 of ultrasonic triplet 3 is connected to guide mechanism 4. The welding head 33 is moved to contact the metal workpiece through guide mechanism 4 and telescopic drive. In this embodiment, ultrasonic triplet 3 is installed horizontally parallel to the front panel. Therefore, the vibration direction of welding head 33 is horizontally parallel to the front panel.

[0039] Reference Figure 4The guiding mechanism 4 includes a linear guide rail 41 and a connecting assembly 42. The linear guide rail 41 is fixed to the frame 1. The connecting assembly 42 connects the linear guide rail 41 and the welding head 33, allowing the welding head 33 to move along the length of the linear guide rail 41. The track surface of the linear guide rail 41 is parallel to the vibration direction of the welding head 33. Specifically, the linear guide rail 41 includes a first guide rail 411, a first slider 412, a second guide rail 413, and a second slider 414. A guide rail fixing plate 415 is provided between the linear guide rail 41 and the frame 1. One end of the guide rail fixing plate 415 is fixedly connected to the frame 1. A guide rail groove 416 is provided on the side of the guide rail fixing plate 415 adjacent to the frame 1. The linear guide rail 41 is fixedly connected to the guide rail groove 416 on the guide rail fixing plate 415. The track surfaces of the first guide rail 411 and the second guide rail 413 are fixed to the frame 1 with opposite orientations, i.e., the track surfaces of the first guide rail 411 and the second guide rail 413 face the sides of the frame 1. The first slider 412 is slidably connected to the first guide rail 411, and the second slider 414 is slidably connected to the second guide rail 413. The two ends of the connecting assembly 42 are fixedly connected to the first slider 412 and the second slider 414, respectively, and the welding head 33 is connected to the middle of the connecting assembly 42. Specifically, the connecting assembly 42 includes a first slider fixing plate 421, a second slider fixing plate 422, and a welding head fixing plate 423. The first slider fixing plate 421 and the second slider fixing plate 422 are fixedly connected to the top ends of the first slider 412 and the second slider 414, respectively. The welding head fixing plate 423 is disposed on the side of the first slider 412 and the second slider 414, and the welding head fixing plate 423 is fixedly connected to the first slider fixing plate 421 and the second slider fixing plate 422. In other equivalent embodiments, the welding head fixing plate 423, the first slider fixing plate 421, and the second slider fixing plate 422 can be integrally formed as a single piece. The track surfaces of the first guide rail 411 and the second guide rail 413 face opposite directions. When the welding head 33 of the ultrasonic triplet 3 generates high-frequency lateral vibration, the vibration is transmitted to the connecting component 42 and then acts on the first guide rail 411 and the second guide rail 413 through the first slider 412 and the second slider 414, respectively. The forces acting on the two guide rails are in opposite directions, which can form a mechanical balance. Compared with a single guide rail bearing the vibration reaction force, the method of setting the double guide rails in opposite directions disperses the force generated by the vibration and uses the opposite forces to cancel out part of the vibration influence, further reducing the impact force and deformation risk of the guide rails and connecting components, and further reducing the wear rate of the guide rails.

[0040] Furthermore, referring to Figure 5A quick-change assembly 5 is also provided between the connecting assembly 42 and the welding head 33. The quick-change assembly 5 includes a fixed block 51 and a movable block 52. The fixed block 51 is fixedly connected to the connecting assembly 42 and has an installation groove 511. One end of the movable block 52 is slidably connected to the installation groove 511. An abutment block 53 that presses against the movable block 52 is provided in the installation groove 511. The other end of the movable block 52 is connected to the welding head 33. The cross-section of the installation groove 511 is an inverted right trapezoid. The abutment block 53 is located on the right-angled side of the installation groove 511. The side of the abutment block 53 facing the middle of the installation groove 511 is an inclined surface opposite to the inclined surface of the installation groove 511. One end of the movable block 52 is a trapezoidal shape that matches the inclined surface of the installation groove 511 and the inclined surface of the abutment block 53. The end of the abutment block 53 away from the movable block 52 is provided with an adjusting member 54 for adjusting its own position, and the adjusting member 54 is provided with a fastener 55 for fixing itself. The quick-change assembly 5 also includes a locking block 56, which is detachably connected to the fixed block 51 and is located at the port of the mounting slot 511 away from the frame 1. When the locking block 56 is locked with the fixed block 51, it abuts against the movable block 52. The welding head is installed through the quick-change assembly. The structure of the quick-change assembly allows the movable block to adaptively adjust its position within a certain range, which can effectively buffer and disperse some vibration energy, avoid the vibration force from being concentrated on the connection part, and reduce the risk of connection loosening or component damage caused by vibration.

[0041] The embodiments of this application have the effect of improving the transmission of reaction vibration of the ultrasonic triplet 3 of the ultrasonic metal welding equipment, increasing the life of the guide rail and the overall reliability of the machine.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ultrasonic metal welding device, characterized in that, include: The frame (1) is used for support and fixation; Functional module (2), which is fixed on the frame (1), is used to provide welding energy and control welding actions; An ultrasonic triplet (3) is connected to the functional module (2). The ultrasonic triplet (3) includes a welding head (33) for performing welding actions. A guiding mechanism (4) is disposed between the welding head (33) and the frame (1) for driving the welding head (33) closer to the metal part to be welded. The guiding mechanism (4) includes a linear guide rail (41) and a connecting component (42). The linear guide rail (41) is fixed on the frame (1). The connecting component (42) connects the linear guide rail (41) and the welding head (33) so that the welding head (33) moves along the length direction of the linear guide rail (41). The track surface of the linear guide rail (41) is parallel to the vibration direction of the welding head (33).

2. The ultrasonic metal welding equipment according to claim 1, characterized in that, The linear guide (41) includes a first guide (411), a first slider (412), a second guide (413), and a second slider (414); The track surfaces of the first guide rail (411) and the second guide rail (413) are fixed to the frame (1) with opposite orientations. The first slider (412) is slidably connected to the first guide rail (411), and the second slider (414) is slidably connected to the second guide rail (413). The two ends of the connecting component (42) are respectively connected to the first slider (412) and the second slider (414), and the welding head (33) is connected to the middle part of the connecting component (42).

3. The ultrasonic metal welding equipment according to claim 2, characterized in that, The connecting assembly (42) includes a first slider fixing plate (421), a second slider fixing plate (422), and a welding head fixing plate (423); The first slider fixing plate (421) and the second slider fixing plate (422) are respectively fixedly connected to the top ends of the first slider (412) and the second slider (414), and the welding head fixing plate (423) is disposed on the side of the first slider (412) and the second slider (414); The welding head fixing plate (423) is fixedly connected to the first slider fixing plate (421) and the second slider fixing plate (422).

4. The ultrasonic metal welding equipment according to claim 3, characterized in that, The welding head fixing plate (423), the first slider fixing plate (421), and the second slider fixing plate (422) are an integral part.

5. An ultrasonic metal welding device according to claim 1, characterized in that, A guide rail fixing plate (415) is provided between the linear guide rail (41) and the frame (1). One side of the guide rail fixing plate (415) is fixedly connected to the frame (1). A guide rail groove (416) is provided on the side of the guide rail fixing plate (415) adjacent to the frame (1). The linear guide rail (41) is fixedly connected to the guide rail groove (416) on the guide rail fixing plate (415).

6. The ultrasonic metal welding equipment according to claim 1, characterized in that, The frame (1) includes a mounting frame (11) and a fixing frame (12). The functional module (2) and the guide mechanism (4) are respectively fixed to two adjacent sides of the mounting frame (11). One side of the fixing frame (12) is detachably connected to one side of the mounting frame (11), and the fixing frame (12) is located on the side of the mounting frame (11) different from the functional module (2) and the guide mechanism (4). The other side of the fixing frame (12) is fixed to the mounting base of the equipment.

7. An ultrasonic metal welding device according to claim 1, characterized in that, A quick-change assembly (5) is also provided between the connecting assembly (42) and the welding head (33). The quick-change assembly (5) includes a fixed block (51) and a movable block (52). The fixed block (51) is fixedly connected to the connecting assembly (42). The fixed block (51) is provided with an installation through groove (511). One end of the movable block (52) is slidably connected to the installation through groove (511). An abutment block (53) that presses against the movable block (52) is provided in the installation through groove (511). The other end of the movable block (52) is connected to the welding head (33).

8. An ultrasonic metal welding device according to claim 7, characterized in that, The cross-section of the mounting slot (511) is an inverted right trapezoid. The abutment block (53) is located on the right-angle side of the mounting slot (511). The side of the abutment block (53) facing the middle of the mounting slot (511) is an inclined surface opposite to the inclined surface of the mounting slot (511). One end of the movable block (52) is a trapezoidal shape that matches the inclined surface of the mounting slot (511) and the inclined surface of the abutment block (53).

9. An ultrasonic metal welding device according to claim 7, characterized in that, The abutment block (53) is provided with an adjusting member (54) for adjusting its own position at one end away from the movable block (52), and the adjusting member (54) is provided with a fastener (55) for fixing itself.

10. An ultrasonic metal welding device according to claim 7, characterized in that, The quick-change assembly (5) further includes a locking block (56), which is detachably connected to the fixing block (51) and located at the port of the mounting slot (511) away from the frame (1). When the locking block (56) is locked to the fixing block (51), it abuts against the movable block (52).

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