An ultrasonic welding device and method

Abstract

This invention discloses an ultrasonic welding device and welding method, relating to the field of ultrasonic welding technology. The invention includes a worktable, with a placement platform slidably connected above the worktable. A placement plate is slidably connected inside the placement platform. The bottom of the placement plate is fixedly connected to the interior of the placement platform via a shock-absorbing column. Two fixing blocks are fixedly installed on the bottom of the placement plate, each with one end of a first connecting rod rotatably mounted on it. The other end of the first connecting rod is rotatably mounted on a sliding block, which is slidably connected to a connecting shaft. This invention utilizes the synergistic force of the shock-absorbing column and the shock-absorbing spring at the bottom of the placement plate. The shock-absorbing column provides stable support, while the shock-absorbing spring absorbs and releases vibration energy through elastic deformation, reducing welding vibration and ensuring stability. Simultaneously, a negative pressure collector creates negative pressure, drawing away waste material through a collection pipe and collection head. A filter screen filters out large particles, and a turbine drives a cleaning brush to prevent filter screen clogging, achieving efficient collection and a clean environment.

Description

Technical Field

[0001] This invention belongs to the field of ultrasonic welding technology, and more specifically, relates to an ultrasonic welding apparatus and welding method. Background Technology

[0002] Ultrasonic welding equipment, as a highly efficient and environmentally friendly welding device, cleverly utilizes high-frequency ultrasonic vibration energy to achieve material bonding. Its core principle lies in the synergistic effect of mechanical vibration and thermal effect, which promotes atomic-level tight bonding of the contact surface materials at the microscopic level. Specifically, it precisely transmits high-frequency vibration waves to the surfaces of two objects to be welded, and by applying pressure, allows the surfaces to rub against each other, thereby breaking down intermolecular barriers and forming a strong molecular layer fusion, achieving high-quality welding.

[0003] Existing ultrasonic welding equipment commonly suffers from high-frequency vibration interference during operation. Vibrations generated by the welding head during operation are easily transmitted to the tooling and the workpiece, compromising workpiece positioning accuracy and causing defects such as welding misalignment and weld seam displacement, severely impacting product welding quality and consistency. Simultaneously, the lack of an effective collection structure for metal residues and debris generated during welding means that residues scattered on the worktable are difficult to clean, not only causing worktable contamination and increasing subsequent cleaning workload, but also potentially seeping into tooling gaps, accelerating component wear, and ultimately reducing the overall service life and operational stability of the equipment. Summary of the Invention

[0004] In view of the problems in the related technologies, the present invention proposes an ultrasonic welding device and welding method to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an ultrasonic welding device. The device is ingeniously designed and structurally sound, aiming to improve the stability and quality of the welding process while also facilitating the collection and treatment of waste generated during welding. Specifically, the device includes a stable worktable with a placement platform slidably connected above it to support the parts to be welded. A placement plate is slidably connected inside the placement platform, and the bottom of the placement plate is fixedly connected to the interior of the placement platform via shock-absorbing columns to effectively absorb vibrations generated during welding and ensure welding accuracy. Two fixing blocks are fixedly installed at the bottom of the placement plate, each with one end of a first connecting rod rotatably mounted on it. The other end of the first connecting rod is rotatably mounted on a sliding block, which is slidably connected to a connecting shaft. A shock-absorbing spring is provided between the two sliding blocks to further enhance the shock absorption effect. A fixing mechanism is provided above the placement plate to securely fix the processed parts and prevent displacement during welding. An electric base frame is slidably connected above the worktable, and a connecting member is slidably connected to the electric base frame. An ultrasonic welding head is fixedly mounted on the connecting member for performing the welding operation. A negative pressure collector is installed above the connector, and collection pipes are installed on both sides of the negative pressure collector. The collection pipes are fixedly connected to a collection head for collecting waste generated during the welding process. A filter screen is installed at one end of the collection head to filter out large particles of impurities in the waste. A cleaning brush is rotatably mounted on the surface of the filter screen, and a turbine is fixedly connected to the cleaning brush. The turbine is rotatably installed inside the collection head. The rotation of the turbine drives the cleaning brush to clean the filter screen and prevent the filter screen from becoming clogged.

[0006] Furthermore, a first sliding groove is provided above the worktable, and a first threaded rod is rotatably installed inside the first sliding groove. A handle is fixedly installed at one end of the first threaded rod for easy manual adjustment. The placement platform is threadedly connected to the first threaded rod. By rotating the first threaded rod, the placement platform can be driven to slide within the first sliding groove, thereby adjusting the position of the placement platform.

[0007] Furthermore, one end of the shock-absorbing column is fixedly installed on the bottom of the placement plate, and the other end is fixedly installed inside the placement platform, providing stable support for the placement plate. The connecting shaft is fixedly installed inside the placement platform, providing a sliding track for the sliding blocks. The shock-absorbing spring is sleeved on the connecting shaft and located between the two sliding blocks, absorbing and releasing vibration energy through its elastic deformation.

[0008] Furthermore, the fixing mechanism includes four first connecting blocks fixedly mounted on the placement plate, arranged in pairs to provide a stable support base for the fixing mechanism. Two sets of the first connecting blocks are rotatably mounted with first bidirectional threaded rods. Each of the four first connecting blocks has a second connecting block fixedly mounted above it, also arranged in pairs. Two sets of the second connecting blocks are rotatably mounted with second bidirectional threaded rods. The rotation of the first and second bidirectional threaded rods drives the clamping plate to perform clamping or releasing operations.

[0009] Furthermore, two of each of the first and second bidirectional threaded rods are provided. A first transmission wheel is fixedly mounted on one end of each of the two first bidirectional threaded rods, and the two first transmission wheels are connected by a first transmission belt to achieve synchronous rotation of the two first bidirectional threaded rods. The output end of a first motor is fixedly mounted on the other end of one of the first bidirectional threaded rods to provide power to the first bidirectional threaded rod. A second transmission wheel is fixedly mounted on one end of each of the two second bidirectional threaded rods, and the two second transmission wheels are connected by a second transmission belt to achieve synchronous rotation of the two second bidirectional threaded rods. The output end of a second motor is fixedly mounted on the other end of one of the second bidirectional threaded rods to provide power to the second bidirectional threaded rod. A first clamping plate is threadedly connected to both ends of the first bidirectional threaded rod, and a second clamping plate is threadedly connected to both ends of the second bidirectional threaded rod. Rotation of the bidirectional threaded rods can drive the first and second clamping plates to move towards or away from each other, thereby clamping or releasing parts. The second clamping plate has a slot for sliding of the first clamping plate, ensuring that the first and second clamping plates do not interfere with each other during movement.

[0010] Furthermore, a second sliding groove is provided above the worktable. Two second sliding grooves are provided to offer sliding tracks for the electric base frame. A second threaded rod is rotatably mounted inside one of the second sliding grooves, while a guide rod is fixedly mounted inside the other, ensuring the stability of the electric base frame during sliding. One end of the electric base frame is threadedly connected to the second threaded rod, and the other end is slidably connected to the guide rod. By rotating the second threaded rod, the electric base frame can be driven to slide within the second sliding groove, thereby adjusting its position. The output end of a third motor is fixedly mounted to one end of the second threaded rod, providing power to the second threaded rod.

[0011] Furthermore, a third sliding groove is provided above the electric base frame, and a third threaded rod is rotatably mounted inside the third sliding groove to provide a sliding track for the connector. The connector is threadedly connected to the third threaded rod. By rotating the third threaded rod, the connector can be driven to slide within the third sliding groove, thereby adjusting the position of the ultrasonic welding head. The output end of a fourth motor is fixedly mounted at one end of the third threaded rod to provide power to the third threaded rod, achieving precise position control of the welding head.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This ultrasonic welding device uses a first motor and a second motor to drive the first and second bidirectional threaded rods to rotate, causing the first and second clamping plates to move towards each other. This provides precise and stable clamping of the parts from two directions, ensuring that the parts do not move during welding and improving welding quality. Simultaneously, the position of the placement platform can be adjusted by manually turning the handle, and the positions of the electric base frame and the ultrasonic welding head can be adjusted using a third motor and a fourth motor, respectively. This allows for flexible adaptation to the welding needs of parts of different sizes, expanding the device's applicability.

[0013] 2. During the welding process, the shock-absorbing columns and springs at the bottom of the plate work together. The shock-absorbing columns provide stable support, while the springs absorb and release vibration energy through elastic deformation, effectively reducing vibrations during welding and ensuring welding stability. Furthermore, the negative pressure collector generates negative pressure, drawing in welding waste through the collection pipe and head. The filter screen filters out large particles of impurities, and a turbine drives a cleaning brush to clean the filter screen and prevent clogging, achieving efficient waste collection and maintaining a clean working environment.

[0014] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the workbench of the present invention; Figure 3 This is a schematic diagram of the electric base frame of the present invention; Figure 4 The negative pressure collector of the present invention; Figure 5Schematic diagram of the fixing mechanism of the present invention Figure 1 ; Figure 6 Schematic diagram of the fixing mechanism of the present invention Figure 2 ; Figure 7 This is a schematic diagram of the placement plate of the present invention.

[0017] The attached diagram lists the components represented by each number as follows: 1. Workbench; 2. Placement platform; 3. Placement plate; 4. Vibration damping column; 5. Fixing block; 6. First connecting rod; 7. Sliding block; 8. Connecting shaft; 9. Vibration damping spring; 10. Electric base frame; 11. Connecting piece; 12. Ultrasonic welding head; 13. Negative pressure collector; 14. Collection pipe; 15. Collection head; 16. Filter screen; 17. Cleaning brush; 18. Turbine; 19. First chute; 20. First threaded rod; 21. First connecting block; 22. First bidirectional threaded rod 23. Handle; 25. Second connecting block; 26. Second bidirectional threaded rod; 27. First transmission wheel; 28. First transmission belt; 29. ​​First motor; 30. Second transmission wheel; 31. Second transmission belt; 32. Second motor; 33. First clamping plate; 34. Second clamping plate; 35. Groove; 36. Second slide groove; 37. Second threaded rod; 38. Guide rod; 39. Third motor; 40. Fourth motor; 41. Third slide groove; 42. Third threaded rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0019] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention.

[0020] Please see Figures 1-7As shown, this invention is an ultrasonic welding device that integrates efficient welding, precise positioning, stable vibration reduction, and waste collection functions, aiming to improve the quality and efficiency of welding operations. The specific structure includes a workbench 1, with a placement platform 2 slidably connected above it to support the parts to be welded; a placement plate 3 is slidably connected inside the placement platform 2, and the bottom of the placement plate 3 is fixedly connected to the inside of the placement platform 2 via a vibration-damping column 4 to effectively absorb vibrations during the welding process and ensure welding stability; two fixing blocks 5 are fixedly installed at the bottom of the placement plate 3, each fixing block 5 having one end of a first connecting rod 6 rotatably mounted on it, and the other end of the first connecting rod 6 rotatably mounted on a sliding block 7, which is slidably connected to a connecting shaft 8; a vibration-damping spring 9 is provided between the two sliding blocks 7 to further enhance the vibration reduction effect; a fixing mechanism is provided above the placement plate 3 for securely fixing the processed parts. An electric base frame 10 is slidably connected above the workbench 1. A connector 11 is slidably connected to the electric base frame 10. An ultrasonic welding head 12 is fixedly installed on the connector 11 for performing welding operations. A negative pressure collector 13 is provided above the connector 11. Collection pipes 14 are provided on both sides of the negative pressure collector 13. A collection head 15 is fixedly connected to the collection pipes 14 for collecting waste generated during the welding process. A filter screen 16 is provided at one end of the collection head 15 to filter out large particles of impurities in the waste. A cleaning brush 17 is rotatably installed on the surface of the filter screen 16. A turbine 18 is fixedly connected to the cleaning brush 17. The turbine 18 is rotatably installed inside the collection head 15. The rotation of the turbine drives the cleaning brush to clean the filter screen and prevent the filter screen from clogging.

[0021] The working principle of the ultrasonic welding device proposed in this invention is as follows: During operation, the parts to be welded are first securely fixed using a fixing mechanism above the placement plate 3, based on the dimensions of the parts. The parts to be welded are then placed on the placement plate 3, and the relevant components of the fixing mechanism are adjusted to ensure accurate positioning and secure fixation.

[0022] Next, by adjusting the connection structure between the workbench 1 and the placement platform 2, the placement platform 2 is slid on the workbench 1, and the placement plate 3 containing the parts is moved to the designated position.

[0023] Then, the electric base frame 10 above the workbench 1 is operated. The electric base frame 10 slides on the workbench 1, and at the same time, the connector 11 on the electric base frame 10 slides on the electric base frame 10, driving the ultrasonic welding head 12 on the connector 11 to move, and accurately positioning the ultrasonic welding head 12 to the part that needs to be welded.

[0024] During the welding process, the bottom of the placement plate 3 is fixedly connected to the inside of the placement platform 2 via the shock-absorbing column 4, which can effectively absorb the vibration generated during the welding process. At the same time, the first connecting rod 6 on the two fixed blocks 5 at the bottom of the placement plate 3 will drive the sliding block 7 to slide on the connecting shaft 8 with the vibration. The shock-absorbing spring 9 between the two sliding blocks 7 will be further compressed or stretched to enhance the shock absorption effect and ensure the stability of the welding.

[0025] During the welding process, the negative pressure collector 13 above the connector 11 generates negative pressure, drawing the waste material through the collection pipes 14 on both sides and the fixedly connected collection head 15. As the waste material passes through the filter screen 16 at one end of the collection head 15, large particles are filtered out. Simultaneously, the airflow drives the turbine 18, which is mounted inside the collection head 15, to rotate. The turbine 18 then drives the cleaning brush 17, which is fixedly connected to it, to rotate on the surface of the filter screen 16, cleaning the screen and preventing clogging, thus ensuring smooth waste collection. After welding is completed, all components are shut down, completing the entire welding operation.

[0026] In one embodiment, for the workbench 1, a first slide groove 19 is provided above the workbench 1. A first threaded rod 20 is rotatably installed inside the first slide groove 19. A handle 23 is fixedly installed at one end of the first threaded rod 20 for easy manual adjustment. The placement table 2 is threadedly connected to the first threaded rod 20. By rotating the first threaded rod 20, the placement table 2 can be driven to slide in the first slide groove 19, thereby adjusting the position of the placement table 2 to meet the welding requirements of parts of different sizes.

[0027] In one embodiment, for the aforementioned shock-absorbing column 4, one end of the shock-absorbing column 4 is fixedly installed at the bottom of the placement plate 3, and the other end is fixedly installed inside the placement platform 2 to provide stable support for the placement plate 3; the connecting shaft 8 is fixedly installed inside the placement platform 2 to provide a sliding track for the sliding block 7; the shock-absorbing spring 9 is sleeved on the connecting shaft 8 and located between the two sliding blocks 7, and absorbs and releases vibration energy through its elastic deformation to ensure stability during the welding process.

[0028] In one embodiment, the fixing mechanism includes four first connecting blocks 21 fixedly installed on the placement plate 3, arranged in pairs to provide a stable support base for the fixing mechanism; two sets of first connecting blocks 21 are rotatably mounted with first bidirectional threaded rods 22, and two second connecting blocks 25 are fixedly installed above each of the four first connecting blocks 21, arranged in pairs; two sets of second connecting blocks 25 are rotatably mounted with second bidirectional threaded rods 26. By rotating the first bidirectional threaded rods 22 and the second bidirectional threaded rods 26, the clamping plate can be driven to perform clamping or loosening operations.

[0029] In one embodiment, for the aforementioned first bidirectional threaded rod 22, there are two of each first bidirectional threaded rod 22 and second bidirectional threaded rod 26. One end of each of the two first bidirectional threaded rods 22 is fixedly mounted with a first transmission wheel 27. The two first transmission wheels 27 are connected by a first transmission belt 28 to achieve synchronous rotation of the two first bidirectional threaded rods 22. The other end of one of the first bidirectional threaded rods 22 is fixedly mounted with the output end of a first motor 29 to provide power to the first bidirectional threaded rod 22 and drive the first clamping plate 33 to perform clamping or releasing operations.

[0030] In one embodiment, for the aforementioned second bidirectional threaded rods 26, a second transmission wheel 30 is fixedly installed at one end of each of the two second bidirectional threaded rods 26. The two second transmission wheels 30 are connected by a second transmission belt 31 to achieve synchronous rotation of the two second bidirectional threaded rods 26. The output end of a second motor 32 is fixedly installed at the other end of one of the second bidirectional threaded rods 26 to provide power to the second bidirectional threaded rod 26. The two ends of the first bidirectional threaded rod 22 are threadedly connected to a first clamping plate 33, and the two ends of the second bidirectional threaded rod 26 are threadedly connected to a second clamping plate 34. By rotating the bidirectional threaded rods, the first clamping plate 33 and the second clamping plate 34 can be driven to move towards or away from each other, thereby clamping or releasing the parts. The second clamping plate 34 has a slot 35 for the first clamping plate 33 to slide, ensuring that the first clamping plate 33 and the second clamping plate 34 do not interfere with each other during movement.

[0031] In one embodiment, for the workbench 1, a second slide groove 36 is provided above the workbench 1. There are two second slide grooves 36 to provide a sliding track for the electric base frame 10. A second threaded rod 37 is rotatably installed inside one of the second slide grooves 36, and a guide rod 38 is fixedly installed inside the other second slide groove 36 to ensure the stability of the electric base frame 10 during the sliding process. One end of the electric base frame 10 is threadedly connected to the second threaded rod 37, and the other end is slidably connected to the guide rod 38. By rotating the second threaded rod 37, the electric base frame 10 can be driven to slide in the second slide groove 36, thereby adjusting the position of the electric base frame 10. The output end of a third motor 39 is fixedly installed at one end of the second threaded rod 37 to provide power to the second threaded rod 37.

[0032] In one embodiment, for the aforementioned electric base frame 10, a third sliding groove 41 is provided above the electric base frame 10, and a third threaded rod 42 is rotatably installed inside the third sliding groove 41 to provide a sliding track for the connector 11; the third threaded rod 42 is threadedly connected to the connector 11, and by rotating the third threaded rod 42, the connector 11 can be driven to slide in the third sliding groove 41, thereby adjusting the position of the ultrasonic welding head 12; one end of the third threaded rod 42 is fixedly installed with the output end of the fourth motor 40 to provide power to the third threaded rod 42, so as to realize precise position control of the welding head to meet different welding requirements.

[0033] The working principle of the ultrasonic welding device proposed in this invention is as follows: During operation, the parts to be welded are first placed on the placement plate 3. The first motor 29 is then turned on, and its output drives one of the first bidirectional threaded rods 22 to rotate. A first transmission wheel 27 at one end of this first bidirectional threaded rod 22 drives the other first transmission wheel 27 to rotate via a first transmission belt 28, thereby causing the two first bidirectional threaded rods 22 to rotate synchronously. The threads at both ends of the two first bidirectional threaded rods 22 drive the first clamping plate 33 to move towards each other, initially clamping the parts in a first direction.

[0034] Next, the second motor 32 is turned on. The output of the second motor 32 drives one of the second bidirectional threaded rods 26 to rotate. The second transmission wheel 30 at one end of the second bidirectional threaded rod 26 drives the other second transmission wheel 30 to rotate via the second transmission belt 31, so that the two second bidirectional threaded rods 26 rotate synchronously. The threads at both ends of the two second bidirectional threaded rods 26 drive the second clamping plate 34 to move towards each other. The slot 35 on the second clamping plate 34 allows the first clamping plate 33 to slide. The second clamping plate 34 cooperates with the first clamping plate 33 to further clamp the part from the second direction, ensuring that the part is firmly fixed on the placement plate 3.

[0035] If the position of the placement platform 2 needs to be adjusted to meet the welding requirements of parts of different sizes, the handle 23 at one end of the first threaded rod 20 can be manually rotated. The first threaded rod 20 rotates in the first slide groove 19 above the worktable 1. Since the placement platform 2 is threadedly connected to the first threaded rod 20, the placement platform 2 will slide in the first slide groove 19, thereby adjusting to the appropriate position.

[0036] Then the third motor 39 is turned on. The output end of the third motor 39 drives the second threaded rod 37 to rotate in one of the second slide grooves 36 above the worktable 1. One end of the electric base frame 10 is threadedly connected to the second threaded rod 37, and the other end is slidably connected to the guide rod 38 in another second slide groove 36. The rotation of the second threaded rod 37 drives the electric base frame 10 to slide in the second slide groove 36, adjusting the electric base frame 10 to a suitable position.

[0037] Next, the fourth motor 40 is turned on. The output end of the fourth motor 40 drives the third threaded rod 42 to rotate in the third slide groove 41 above the electric base frame 10. The connector 11 is threadedly connected to the third threaded rod 42. The rotation of the third threaded rod 42 drives the connector 11 to slide in the third slide groove 41, so that the ultrasonic welding head 12 on the connector 11 moves to the part that needs to be welded.

[0038] During the welding process, one end of the shock-absorbing column 4 at the bottom of the placement plate 3 is fixed to the bottom of the placement plate 3, and the other end is fixed inside the placement platform 2, providing stable support for the placement plate 3 and absorbing some vibration. At the same time, the first connecting rod 6 on the fixing block 5 at the bottom of the placement plate 3 drives the sliding block 7 to slide on the connecting shaft 8 fixed inside the placement platform 2. The shock-absorbing spring 9 between the two sliding blocks 7 is sleeved on the connecting shaft 8, absorbing and releasing vibration energy through elastic deformation to ensure welding stability.

[0039] During welding, waste is drawn into the negative pressure system of the negative pressure collector 13 above the connector 11 by the collection pipes 14 on both sides and the fixedly connected collection head 15. As the waste passes through the filter screen 16 at one end of the collection head 15, large particles are filtered out. The airflow drives the turbine 18, which is mounted inside the collection head 15, to rotate. The turbine 18 then drives the cleaning brush 17, which is fixedly connected to it, to rotate on the surface of the filter screen 16, cleaning the screen and preventing clogging, thus ensuring smooth waste collection. After welding is completed, all motors and the negative pressure collector 13 are turned off, completing the entire welding process.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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.

[0041] The preferred embodiments of the invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. The embodiments selected and specifically described in this specification are intended to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An ultrasonic welding apparatus, comprising a worktable (1), characterized in that: A placement platform (2) is slidably connected above the workbench (1). A placement plate (3) is slidably connected inside the placement platform (2). The bottom of the placement plate (3) is fixedly connected to the inside of the placement platform (2) via a shock-absorbing column (4). Two fixing blocks (5) are fixedly installed at the bottom of the placement plate (3). One end of a first connecting rod (6) is rotatably installed on each of the two fixing blocks (5). The other end of the first connecting rod (6) is rotatably installed on a sliding block (7). The sliding block (7) is slidably connected to a connecting shaft (8). A shock-absorbing spring (9) is provided between the two sliding blocks (7). A fixing mechanism is provided above the placement plate (3). The fixing mechanism is used to fix the processed parts. The workbench (1) is fixedly connected to an electric base frame (10) which is slidably connected to a connector (11). An ultrasonic welding head (12) is fixedly installed on the connector (11). A negative pressure collector (13) is provided above the connector (11). Collection pipes (14) are provided on both sides of the negative pressure collector (13). A collection head (15) is fixedly connected to the collection pipes (14). A filter screen (16) is provided at one end of the collection head (15). A cleaning brush (17) is rotatably installed on the surface of the filter screen (16). A turbine (18) is fixedly connected to the cleaning brush (17). The turbine (18) is rotatably installed inside the collection head (15).

2. The ultrasonic welding apparatus according to claim 1, characterized in that, The workbench (1) has a first slide groove (19) on top, and a first threaded rod (20) is rotatably installed inside the first slide groove (19). A handle (23) is fixedly installed at one end of the first threaded rod (20), and the placement platform (2) is threadedly connected to the first threaded rod (20).

3. The ultrasonic welding apparatus according to claim 2, characterized in that, One end of the shock-absorbing column (4) is fixedly installed at the bottom of the placement plate (3), and the other end is fixedly installed inside the placement platform (2). The connecting shaft (8) is fixedly installed inside the placement platform (2), and the shock-absorbing spring (9) is sleeved on the connecting shaft (8).

4. The ultrasonic welding apparatus according to claim 3, characterized in that, The fixing mechanism includes a first connecting block (21) fixedly installed on the placement plate (3). There are four first connecting blocks (21), which are divided into two groups. The two groups of first connecting blocks (21) are rotatably mounted with a first bidirectional threaded rod (22). A second connecting block (25) is fixedly installed above each of the four first connecting blocks (21), which are divided into two groups. The two groups of second connecting blocks (25) are rotatably mounted with a second bidirectional threaded rod (26).

5. An ultrasonic welding apparatus according to claim 4, characterized in that, There are two of each of the first bidirectional threaded rod (22) and the second bidirectional threaded rod (26). One end of each of the two first bidirectional threaded rods (22) is fixedly mounted with a first transmission wheel (27). The two first transmission wheels (27) are connected by a first transmission belt (28). The other end of one of the first bidirectional threaded rods (22) is fixedly mounted with the output end of a first motor (29).

6. The ultrasonic welding apparatus according to claim 5, characterized in that, Two second bidirectional threaded rods (26) are each fixedly mounted with a second transmission wheel (30) at one end. The two second transmission wheels (30) are connected by a second transmission belt (31). The output end of a second motor (32) is fixedly mounted at the other end of one of the second bidirectional threaded rods (26). The two ends of the first bidirectional threaded rod (22) are threadedly connected to a first clamping plate (33). The two ends of the second bidirectional threaded rod (26) are threadedly connected to a second clamping plate (34). The second clamping plate (34) has a slot (35) for the first clamping plate (33) to slide.

7. An ultrasonic welding apparatus according to claim 1, characterized in that, The workbench (1) is provided with a second slide groove (36) above it. There are two second slide grooves (36). A second threaded rod (37) is rotatably installed inside one of the second slide grooves (36), and a guide rod (38) is fixedly installed inside the other second slide groove (36). One end of the electric base frame (10) is threadedly connected to the second threaded rod (37), and the other end is slidably connected to the guide rod (38). The output end of the third motor (39) is fixedly installed at one end of the second threaded rod (37).

8. An ultrasonic welding apparatus according to claim 7, characterized in that, The electric base frame (10) has a third slide groove (41) on top. A third threaded rod (42) is rotatably installed inside the third slide groove (41). The third threaded rod (42) is threadedly connected to a connector (11). The output end of a fourth motor (40) is fixedly installed at one end of the third threaded rod (42).

9. The welding method of the ultrasonic welding apparatus according to claim 1, characterized in that, Includes the following steps: Step 1: According to the size of the part to be welded, use the fixing mechanism above the placement plate (3) to fix the part securely, place the part on the placement plate (3), adjust the relevant parts of the fixing mechanism to ensure that the part is in the correct position and is firmly fixed. Step 2: Adjust the connection structure between the workbench (1) and the placement platform (2) so that the placement platform (2) slides on the workbench (1) and moves the placement plate (3) containing the parts to the designated position. Step 3: Operate the electric base frame (10) above the workbench (1) to slide on the workbench (1). At the same time, the connector (11) on the electric base frame (10) slides on the electric base frame (10), driving the ultrasonic welding head (12) to move and accurately positioning the ultrasonic welding head (12) to the part that needs to be welded. Step 4: Welding is performed. The bottom of the placement plate (3) is fixedly connected to the inside of the placement platform (2) through the shock-absorbing column (4) to absorb vibration. At the same time, the first connecting rod (6) on the bottom fixing block (5) of the placement plate (3) drives the sliding block (7) to slide on the connecting shaft (8) with the vibration. The shock-absorbing spring (9) between the two sliding blocks (7) is compressed or stretched to enhance the shock absorption effect. Step 5: During welding, the negative pressure collector (13) above the connector (11) generates negative pressure, which draws in waste through the collection pipe (14) and the collection head (15). When the waste passes through the filter screen (16) at one end of the collection head (15), large particles of impurities are filtered out. The airflow drives the turbine (18) inside the collection head (15) to rotate, and the turbine (18) drives the cleaning brush (17) to rotate and clean the surface of the filter screen (16).

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