Cross-flow fan blade ultrasonic welding machine

Abstract

This utility model relates to the field of ultrasonic welding technology for injection molded workpieces, and discloses an ultrasonic welding machine for cross-flow fan blades. It includes a work box, with a frustum fixedly connected to the top of the work box. The top of the frustum is fixedly connected to the ultrasonic welding machine body, two electric slide rails, and four clamping frames. Guide rods are fixedly connected inside the clamping frames, and clamping arc plates are slidably connected to the outer walls of the guide rods. This utility model, through the coordinated use of the clamping frames, guide rods, clamping arc plates, and positioning components, can automatically adjust the position of the clamping arc plates according to different specifications of cross-flow fan blades. This facilitates the welding of different types of fan blades without manual adjustment, reducing human error and time delays, improving overall production efficiency, ensuring the stability and precision of the cross-flow fan blades during welding, and contributing to improved product consistency and quality.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic welding technology for injection molded workpieces, and in particular to an ultrasonic welding machine for cross-flow fan blades. Background Technology

[0002] With the development of air supply systems in the home appliance industry, cross-flow fan blades, as core plastic components, are seeing their welding technology gradually move towards automation and intelligence during manufacturing. However, existing ultrasonic welding equipment for cross-flow fan blades still faces many problems in practical applications, particularly in areas such as welding guide clamping, automation of product specification changes, and welding head lifting control, making it difficult to meet the demands for efficient and precise production.

[0003] A search revealed an ultrasonic welding device for cross-flow fan blades, publication number CN113696489B, published on April 28, 2023. This device includes a support frame, a lifting support mechanism, a four-column positioning mechanism, and an ultrasonic welding mechanism, and is equipped with a photoelectric beam switch and a noise driving device. The lifting support mechanism allows the cross-flow fan blades to move freely up and down, while the four-column positioning mechanism provides precise positioning during the welding process. However, when dealing with cross-flow fan blades of different specifications, the device for adjusting the positions of the positioning and support mechanisms is complex, resulting in long line changeover times and difficulty in achieving rapid switching. Furthermore, although the noise driving device can absorb some welding noise, its heat dissipation effect on the welded workpiece is limited, failing to effectively solve the problem of heat accumulation during welding, which may affect the welding quality.

[0004] The above problems indicate that existing cross-flow fan blade ultrasonic welding equipment is not sufficiently automated when dealing with products of multiple specifications, and has obvious defects in welding guidance and clamping accuracy and heat dissipation. Therefore, this utility model aims to provide a cross-flow fan blade ultrasonic welding machine to overcome these shortcomings and achieve a higher level of intelligent, automated and efficient production. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an ultrasonic welding machine for cross-flow fan blades.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an ultrasonic welding machine for cross-flow fan blades, comprising a working box, a truncated cone fixedly connected to the top of the working box, an ultrasonic welding machine body, two electric slide rails, and four clamping frames fixedly connected to the top of the truncated cone, a guide rod fixedly connected inside the clamping frames, and clamping arc plates slidably connected to the outer wall of the guide rods, a positioning component capable of driving the four clamping arc plates to move relative to or apart from each other at the bottom of the truncated cone, a sliding groove opened on one side of the electric slide rail, an electric slider slidably connected inside the sliding groove, a connecting component provided on one side of the electric slider, and mounting grooves opened on both sides of the working box, with cooling components installed inside the mounting grooves.

[0007] The ultrasonic welding machine body generates ultrasonic energy, which is directly applied to the welding area of ​​the fan blade. The heat energy from the ultrasonic vibration raises the contact surface of the fan blade to a sufficient temperature, thus achieving welding. The electric slide rail, in conjunction with the electric slider, moves within the slide groove, ensuring that the gas collection hood can be precisely moved to the position of the cross-flow fan blade that needs cooling, enhancing the automated adjustment function. The positioning component controls the relative movement or separation of the four clamping arc plates to clamp cross-flow fan blades of different sizes. The cooling component provides cooling airflow to the system through a cooling fan, helping to quickly reduce the temperature of the fan blade after welding and prevent burns and deformation.

[0008] As a further description of the above technical solution:

[0009] The positioning component includes a servo motor fixedly installed at the bottom of the truncated cone. The output end of the servo motor rotates through the truncated cone and is fixedly connected to a connecting shaft. The top end of the connecting shaft is rotatably connected to a mounting base.

[0010] The bottom of the mounting base is fixedly connected to the frustum. The servo motor is responsible for driving the connecting shaft in the positioning assembly and adjusting the speed and angle according to the instructions of the control system, thereby precisely controlling the position of the four clamping arc plates.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the connecting shaft is fixedly connected to a driving bevel gear, and the outer wall of the driving bevel gear is meshed with four driven bevel gears. The interior of the driven bevel gears is fixedly connected to a rotating shaft.

[0013] The meshing between the driving bevel gear and the driven bevel gear transmits power, causing the rotating shaft to rotate. The gear system converts the rotational motion generated by the servo motor into the relative movement required to clamp the arc plate, thereby achieving automatic adjustment of the clamping frame position.

[0014] As a further description of the above technical solution:

[0015] One end of the rotating shaft rotates through the interior of the clamping frame and is fixedly connected to a threaded rod. The outer wall of the threaded rod is threadedly connected to the clamping arc plate.

[0016] One end of the threaded rod is rotatably connected to the inner wall of the clamping frame. When the threaded rod rotates, it drives the clamping arc plate to slide along the guide rod, thereby achieving the clamping or loosening of the cross-flow fan blade.

[0017] As a further description of the above technical solution:

[0018] The connecting assembly includes a photoelectric sensor fixedly mounted on one side of the electric slider, and an L-shaped plate fixedly connected to the bottom of the electric slider.

[0019] The photoelectric sensor is used to detect changes in the obstruction of the object, ensuring that after welding is completed, the system can accurately identify the insertion of the new fan blade and trigger the next automated process, including the movement of the electric slide rail and the activation of the cooling system.

[0020] As a further description of the above technical solution:

[0021] The cooling component includes a cooling fan fixedly installed inside the mounting slot, and a collecting duct is fixedly connected to one side of the cooling fan.

[0022] The cooling fan has an intake fan on one side and an exhaust fan on the other, which can form a directional airflow to accelerate heat dissipation.

[0023] As a further description of the above technical solution:

[0024] One side of the air collection duct is fixedly connected to a telescopic hose, and one end of the telescopic hose is fixedly connected to an air collection hood.

[0025] The outer wall of the gas collection hood is fixedly connected to the L-shaped plate, and the L-shaped plate is fixedly connected to the electric slider, which is responsible for driving the gas collection hood to move along the slide rail, ensuring that the gas collection hood can accurately cover the welded cross-flow fan blades and complete the cooling process.

[0026] As a further description of the above technical solution:

[0027] A control cabinet is fixedly installed on one side of the work box.

[0028] The control cabinet is the control center of the entire welding system. It is responsible for receiving signals from photoelectric sensors and driving each component to operate according to a preset program.

[0029] This utility model has the following beneficial effects:

[0030] 1. Compared with existing technologies, this cross-flow fan blade ultrasonic welding machine, through the coordinated use of structures such as clamping frame, guide rod, clamping arc plate and positioning components, can automatically adjust the position of clamping arc plate according to different specifications of cross-flow fan blades, which facilitates the welding of different types of fan blades without the need for manual adjustment, reduces human operation errors and time delays, improves overall production efficiency, ensures the stability and accuracy of cross-flow fan blades during welding, and helps to improve product consistency and quality.

[0031] 2. Compared with existing technologies, this cross-flow fan blade ultrasonic welding machine, through the coordinated use of electric slide rails, electric sliders, connecting components, and cooling components, can form an air circulation with intake and exhaust cooling fans, rapidly reducing the temperature of the welded cross-flow fan blades. This helps prevent burns to workers and deformation caused by overheating of materials, improving safety. Furthermore, photoelectric sensors detect changes in object obstruction in real time, ensuring the safety of the welding process and the accurate placement of new fan blades, avoiding operational errors and achieving efficient and continuous production. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a cross-flow fan blade ultrasonic welding machine proposed in this utility model.

[0033] Figure 2 This is a three-dimensional structural diagram of the internal view of the working box of a cross-flow fan blade ultrasonic welding machine proposed in this utility model.

[0034] Figure 3 This is a three-dimensional schematic diagram of the threaded rod and guide rod of an ultrasonic welding machine for cross-flow fan blades proposed in this utility model.

[0035] Figure 4 This is a three-dimensional schematic diagram of the positioning component structure of a cross-flow fan blade ultrasonic welding machine proposed in this utility model;

[0036] Figure 5 This is a three-dimensional schematic diagram of the cooling component structure of a cross-flow fan blade ultrasonic welding machine proposed in this utility model.

[0037] Legend:

[0038] 1. Work box; 2. Frustum; 3. Ultrasonic welding machine body; 4. Electric slide rail; 5. Clamping frame; 6. Guide rod; 7. Clamping arc plate; 8. Slide groove; 9. Electric slider; 10. Mounting slot; 11. Servo motor; 12. Connecting shaft; 13. Mounting base; 14. Driving bevel gear; 15. Driven bevel gear; 16. Rotating shaft; 17. Threaded rod; 18. Photoelectric sensor; 19. L-shaped plate; 20. Cooling fan; 21. Air collection duct; 22. Telescopic flexible hose; 23. Gas collection hood; 24. Control cabinet. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1-5 This utility model provides an ultrasonic welding machine for cross-flow fan blades, comprising a work box 1, a frustum 2 fixedly connected to the top of the work box 1, an ultrasonic welding machine body 3, two electric slide rails 4, and four clamping frames 5 fixedly connected to the top of the frustum 2, a guide rod 6 fixedly connected inside the clamping frame 5, and clamping arc plates 7 slidably connected to the outer wall of the guide rod 6, a positioning component at the bottom of the frustum 2 capable of driving the four clamping arc plates 7 to move relative to or away from each other, a slide groove 8 on one side of the electric slide rail 4, an electric slider 9 slidably connected inside the slide groove 8, a connecting component on one side of the electric slider 9, and mounting grooves 10 on both sides of the work box 1, with cooling components installed inside the mounting grooves 10. The ultrasonic vibration heat energy is used to bring the contact surface of the fan blade to a sufficient temperature, thereby achieving welding. 4. The electric slider 9 moves within the groove 8 to ensure that the gas collection hood 23 can be precisely moved to the position of the cross-flow fan blade that needs cooling, enhancing the automated adjustment function. The positioning component is responsible for controlling the relative movement or separation of the four clamping arc plates 7 to clamp cross-flow fan blades of different sizes. The cooling component provides cooling airflow to the system through the cooling fan 20 to help quickly reduce the temperature of the fan blades after welding, preventing burns and deformation. Through the coordinated use of structures such as the clamping frame 5, guide rod 6, clamping arc plates 7 and positioning component, the position of the clamping arc plates 7 can be automatically adjusted according to the cross-flow fan blades of different specifications, facilitating the welding of different types of fan blades without manual adjustment, reducing human error and time delay, improving overall production efficiency, ensuring the stability and accuracy of the cross-flow fan blades during welding, and helping to improve product consistency and quality.

[0041] The positioning assembly includes a servo motor 11 fixedly mounted on the bottom of the truncated cone 2. The output end of the servo motor 11 rotates through the truncated cone 2 and is fixedly connected to a connecting shaft 12. The top end of the connecting shaft 12 is rotatably connected to a mounting base 13, and the bottom of the mounting base 13 is fixedly connected to the truncated cone 2. The servo motor 11 is responsible for driving the connecting shaft 12 in the positioning assembly, adjusting the speed and angle according to the instructions of the control system, thereby precisely controlling the position of the four clamping arc plates 7. A driving bevel gear 14 is fixedly connected to the outer wall of the connecting shaft 12, and four driven bevel gears 15 are meshed with the outer wall of the driving bevel gear 14. The interior of the driven bevel gears 15... A rotating shaft 16 is fixedly connected. The meshing between the driving bevel gear 14 and the driven bevel gear 15 transmits power, causing the rotating shaft 16 to rotate. The gear system converts the rotational motion generated by the servo motor 11 into the relative movement required by the clamping arc plate 7, thereby realizing automatic adjustment of the position of the clamping frame 5. One end of the rotating shaft 16 rotates through the interior of the clamping frame 5 and is fixedly connected to a threaded rod 17. The outer wall of the threaded rod 17 is threadedly connected to the clamping arc plate 7, and one end of the threaded rod 17 is rotatably connected to the inner wall of the clamping frame 5. When the threaded rod 17 rotates, it drives the clamping arc plate 7 to slide along the guide rod 6, thereby realizing the clamping or loosening of the cross-flow fan blades.

[0042] The connecting components include a photoelectric sensor 18 fixedly installed on one side of the electric slider 9. An L-shaped plate 19 is fixedly connected to the bottom of the electric slider 9. The photoelectric sensor 18 is used to detect changes in the obstruction of objects, ensuring that after welding, the system can accurately identify the placement of new fan blades and trigger the next automated process, including the movement of the electric slide rail 4 and the start of the cooling system. The cooling components include a cooling fan 20 fixedly installed inside the mounting slot 10. A collecting pipe 21 is fixedly connected to one side of the cooling fan 20. One side of the cooling fan 20 is an intake fan, and the other side is an exhaust fan, which can form a directional air duct to accelerate heat dissipation. A telescopic hose 22 is fixedly connected to one side of the collecting pipe 21. One end of the telescopic hose 22 is fixedly connected to a gas collecting hood 23. The outer wall of the gas collecting hood 23 is fixedly connected to the L-shaped plate 19. The L-shaped plate 19 is fixedly connected to the electric slider 9 and is responsible for driving the gas collecting hood 23 to move along the slide rail, ensuring that the gas collecting hood 23 can accurately cover the welded cross-flow fan blades and complete the cooling process.

[0043] A control cabinet 24 is fixedly installed on one side of the work box 1. The control cabinet 24 is the control center of the entire welding system. It is responsible for receiving signals from the photoelectric sensor 18 and driving each component to operate according to the preset program.

[0044] Working principle: First, the ultrasonic welding machine body 3, electric slide rail 4, servo motor 11, photoelectric sensor 18 and cooling fan 20 are electrically connected to facilitate more convenient control of the device. Then, the cross-flow fan blade to be processed can be placed on the top position of the mounting base 13. Then, the servo motor 11 is started, and the output end rotates to drive the connecting shaft 12 to rotate, thereby causing the active bevel gear 14 to rotate and drive the driven bevel gear 15 to rotate, which in turn causes the four rotating shafts 16 to rotate. The rotation of the rotating shafts 16 drives the threaded rod 17 to rotate, causing the clamping arc plate 7 threaded to the outer wall of the threaded rod 17 to move along the guide rod 6. This allows the four clamping arc plates 7 to move around the center of the mounting base 13, thereby adjusting the cross-flow fan blades of different specifications, which facilitates the subsequent welding of the cross-flow fan blades.

[0045] Then, when a cross-flow fan blade is welded, the photoelectric sensor 18 senses two changes in the obstruction of objects: once by the welding machine and once by the worker placing a new cross-flow fan blade. When the signals of these two changes are transmitted to the control cabinet 24, they drive the pre-set program, causing the electric slide rail 4 to start and drive the electric slider 9 to move along the slide groove 8. This causes the L-shaped plate 19 to move the air collection hood 23. At this moment, the cooling fans 20 start, with one side being the intake cooling fan 20 and the other side being the exhaust cooling fan 20, which can form a transmission air duct to accelerate air circulation. Then, the gas enters the telescopic hose 22 along the air collection pipe 21 and then cools the newly welded cross-flow fan blade through the air collection hood 23, helping it to cool down quickly and thus avoiding accidental burns and preventing material deformation.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic welding machine for cross-flow fan blades, comprising a working box (1), characterized in that: A frustum (2) is fixedly connected to the top of the work box (1). An ultrasonic welding machine body (3), two electric slide rails (4) and four clamping frames (5) are fixedly connected to the top of the frustum (2). A guide rod (6) is fixedly connected inside the clamping frame (5). A clamping arc plate (7) is slidably connected to the outer wall of the guide rod (6). A positioning component capable of driving the four clamping arc plates (7) to move relative to or away from each other is provided at the bottom of the frustum (2). A slide groove (8) is provided on one side of the electric slide rail (4). An electric slider (9) is slidably connected inside the slide groove (8). A connecting component is provided on one side of the electric slider (9). An installation groove (10) is provided on both sides of the work box (1). A cooling component is provided inside the installation groove (10).

2. The ultrasonic welding machine for cross-flow fan blades according to claim 1, characterized in that: The positioning component includes a servo motor (11) fixedly installed at the bottom of the truncated cone (2). The output end of the servo motor (11) rotates through the truncated cone (2) and is fixedly connected to a connecting shaft (12). The top end of the connecting shaft (12) is rotatably connected to a mounting base (13), and the bottom of the mounting base (13) is fixedly connected to the truncated cone (2).

3. The ultrasonic welding machine for cross-flow fan blades according to claim 2, characterized in that: The outer wall of the connecting shaft (12) is fixedly connected to a driving bevel gear (14), and the outer wall of the driving bevel gear (14) is meshed with four driven bevel gears (15). The interior of the driven bevel gears (15) is fixedly connected to a rotating shaft (16).

4. The ultrasonic welding machine for cross-flow fan blades according to claim 3, characterized in that: One end of the rotating shaft (16) rotates through the inside of the clamping frame (5) and is fixedly connected to a threaded rod (17). The outer wall of the threaded rod (17) is threadedly connected to the clamping arc plate (7), and one end of the threaded rod (17) is rotatably connected to the inner wall of the clamping frame (5).

5. The ultrasonic welding machine for cross-flow fan blades according to claim 1, characterized in that: The connecting assembly includes a photoelectric sensor (18) fixedly installed on one side of the electric slider (9), and an L-shaped plate (19) is fixedly connected to the bottom of the electric slider (9).

6. The ultrasonic welding machine for cross-flow fan blades according to claim 1, characterized in that: The cooling component includes a cooling fan (20) fixedly installed inside the mounting slot (10), and a collecting duct (21) is fixedly connected to one side of the cooling fan (20).

7. The ultrasonic welding machine for cross-flow fan blades according to claim 6, characterized in that: One side of the air collection pipe (21) is fixedly connected to a telescopic hose (22), and one end of the telescopic hose (22) is fixedly connected to an air collection hood (23). The outer wall of the air collection hood (23) is fixedly connected to an L-shaped plate (19).

8. The ultrasonic welding machine for cross-flow fan blades according to claim 1, characterized in that: A control cabinet (24) is fixedly installed on one side of the work box (1).

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