A multi-station ultrasonic welding apparatus

Abstract

The application belongs to the technical field of automobile production and discloses a multi-station ultrasonic welding device, which comprises a base, a sliding seat is arranged on the base and can slide along the length direction of the base, an ultrasonic welding assembly is arranged on the sliding seat, the ultrasonic welding assembly comprises a fixing frame arranged on the sliding seat, a rotating seat is arranged on the fixing frame, a mechanical arm is rotatably arranged on the rotating seat, a welding head is connected to the end of the mechanical arm, and two groups of workpiece placing tools are arranged on the two sides of the base along the length direction of the base. The ultrasonic welding assembly can move along the length direction of the base under the drive of the sliding seat, so that the ultrasonic welding assembly can be used for four groups of workpiece placing tools. When the workpieces on one station are welded, the ultrasonic welding assembly can move to the next station for welding, and the workpieces on the welded station can be taken out and placed again, so that the waiting time between processes is greatly reduced, and the work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automobile production technology, and in particular to a multi-station ultrasonic welding equipment. Background Technology

[0002] Ultrasonic welding, as a novel solid-state welding technology, has been increasingly adopted in the automotive parts manufacturing industry due to its advantages, including no need for welding wire or flux, no open flame or smoke during the welding process, small heat-affected zone, high welding efficiency, and stable joint quality. This technology utilizes high-frequency vibration energy to induce plastic deformation and frictional heat at the contact surfaces of the welded workpieces, achieving a solid-state connection between materials. It is particularly suitable for welding lightweight metals such as aluminum alloys and copper alloys, as well as non-metallic materials such as plastics and rubber. It effectively solves the bottleneck problems of traditional welding technologies in welding lightweight materials, and is therefore widely used in the manufacturing of automotive parts.

[0003] Currently, most ultrasonic welding equipment used in automotive parts production is single-station structure. In actual production, frequent workpiece clamping, positioning, welding, and unloading operations are required. The waiting time between each process is long, resulting in low overall efficiency and making it difficult to meet the efficiency requirements of large-scale mass production. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a multi-station ultrasonic welding device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a multi-station ultrasonic welding equipment, including a base, a sliding seat slidably disposed on the base along its length direction, an ultrasonic welding assembly disposed on the sliding seat, the ultrasonic welding assembly including a fixed frame disposed on the sliding seat, a rotating seat disposed on the fixed frame, a robotic arm rotatably disposed on the rotating seat, a welding head connected to the end of the robotic arm, and two sets of workpiece placement fixtures arranged at intervals on both sides of the base along its length direction.

[0006] By adopting the above technical solution, two sets of workpiece placement fixtures are set on each side of the base, resulting in four sets of workpiece placement fixtures. This allows for four workstations to place workpieces for welding. A sliding seat is then slidably set on the base, which drives the ultrasonic welding assembly to move between two workstations along the length of the base. A rotating seat is also provided, allowing the robotic arm to rotate horizontally, thus enabling the welding head to move between the four workstations. In this way, once the workpiece at one workstation is welded, the ultrasonic welding assembly can move to weld the workpiece at the next workstation. The welded workstations can then be used for picking up and re-placing workpieces, greatly reducing the waiting time between processes and improving work efficiency.

[0007] Furthermore, the base is provided with two slide rails arranged at intervals along its length, and several sliders are slidably mounted on the slide rails. The sliders on the two slide rails are all fixedly connected to the bottom of the sliding seat. A rack is also provided on the base between the two slide rails along its length. A drive motor is provided in the middle of the sliding seat. The output shaft of the drive motor passes downward through the sliding seat and has a gear at its end. The gear meshes with the rack.

[0008] By adopting the above technical solution, a slide rail and a slider are set to provide sliding guidance for the sliding seat and ensure that the sliding seat slides smoothly on the base; a drive motor, gears, and racks are set, and the drive motor drives the gears to rotate, and the sliding seat is realized by the cooperation of the racks.

[0009] Furthermore, an ultrasonic welding assembly is provided on each side of the sliding seat along the length of the base of the drive motor, and the workpiece placement fixture includes two sets of placement racks arranged at intervals, on which the workpiece to be welded is placed.

[0010] By adopting the above technical solution, an ultrasonic welding assembly is set on each side of the drive motor, and then combined with two sets of placement racks on each workpiece placement fixture, so that welding of two sets of workpieces can be performed simultaneously, further improving work efficiency.

[0011] Furthermore, a cantilever frame is provided on the fixed frame, and a placement plate is provided on the cantilever frame. The placement plate is provided with a plurality of placement slots, and the placement slots are used to place different types of welding heads.

[0012] By adopting the above technical solution, a cantilever frame, a placement plate, and a placement groove are set up. Different types of welding heads are placed in the placement groove, which makes it convenient to select the appropriate welding head according to the needs during welding.

[0013] Furthermore, the end of the robotic arm is provided with a connecting plate, the connecting plate is provided with a slide cylinder, the slide cylinder is connected to a seat, and the bottom of the connecting seat is provided with a quick-connect connector, which is used to quickly connect with the upper end of the welding head.

[0014] By adopting the above technical solution, a connecting plate, a sliding cylinder, a connecting seat, and a quick-change connector are set up. The quick-change connector is quickly inserted into the upper part of the welding head, which facilitates the automatic replacement of the welding head by the robot arm.

[0015] Furthermore, a protective canopy is provided on the outer side of the base. The protective canopy is open on both sides in the width direction of the base, and a protective net is provided between the two sets of workpiece placement fixtures on both sides of the base.

[0016] By adopting the above technical solutions, protective sheds and protective nets are set up to protect the working area of ​​the equipment and ensure work safety.

[0017] In summary, this utility model has the following beneficial effects: 1. In this application, by setting two sets of workpiece placement fixtures on each side of the base, four sets of workpiece placement fixtures can be set, thus providing four workstations for welding. A sliding seat is then slidably set on the base, which drives the ultrasonic welding assembly to move between two workstations along the length of the base. A rotating seat is also set, allowing the robotic arm to rotate horizontally, thereby enabling the welding head to move between the four workstations. In this way, after the workpiece at one workstation is welded, the ultrasonic welding assembly can move to weld the workpiece at the next workstation. The welded workstations can be used for picking up and re-placing parts, greatly reducing the waiting time between processes and improving work efficiency.

[0018] 2. In this application, by setting up two sets of ultrasonic welding components and cooperating with two sets of placement racks on each workpiece placement fixture, welding of two sets of workpieces can be performed simultaneously, further improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the concealed protective shed and protective netting according to an embodiment of this utility model; Figure 3 This is a top view of the embodiment of the present invention with the protective shed and protective netting concealed. Figure 4 This is a structural schematic diagram of the base, sliding seat, and ultrasonic welding assembly of this utility model embodiment; Figure 5 yes Figure 4 A partially enlarged structural diagram; Figure 6 This is a cross-sectional structural diagram of the base and sliding seat portion of an embodiment of this utility model.

[0020] In the diagram: 10. Base; 11. Slide rail; 12. Slider; 13. Rack; 20. Sliding seat; 21. Drive motor; 22. Gear; 30. Ultrasonic welding assembly; 31. Fixture; 32. Rotary seat; 33. Robotic arm; 34. Welding head; 35. Cantilever frame; 351. Placement plate; 352. Placement slot; 36. Connecting plate; 37. Slide table cylinder; 38. Connecting seat; 39. Quick-change connector; 40. Workpiece placement fixture; 41. Placement rack; 50. Protective canopy; 51. Protective net. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] like Figure 1-6 As shown in the illustration, this application discloses a multi-station ultrasonic welding device, including a base 10, a sliding seat 20, an ultrasonic welding assembly 30, and a workpiece placement fixture 40. The sliding seat 20 is slidably disposed on the base 10 along its length, and the ultrasonic welding assembly 30 is disposed on the sliding seat 20, allowing the ultrasonic welding assembly 30 to slide on the base 10 via the sliding seat 20. Two sets of workpiece placement fixtures 40 are arranged at intervals on both sides of the base 10 along its length, for a total of four sets of workpiece placement fixtures 40. The workpiece placement fixtures 40 are used to place the workpieces to be welded. The sliding seat 20 drives the ultrasonic welding assembly 30 to move along the length of the base 10, allowing the ultrasonic welding assembly 30 to accommodate all four sets of workpiece placement fixtures 40. In this way, after the workpiece at one station is welded, the ultrasonic welding assembly 30 can move to the next station for welding, while the welded station can be used for workpiece removal and repositioning, greatly reducing the waiting time between processes and improving work efficiency.

[0023] Specifically, two slide rails 11, aligned with the length of the slide rails, are spaced apart on the base 10. Several sliders 12 slide on each slide rail 11, and these sliders 12 are fixedly connected to the bottom of the sliding seat 20. The slide rails 11 and sliders 12 provide sliding guidance for the sliding seat 20, ensuring its smooth sliding on the base 10. A rack 13, aligned with the length of the slide rails, is also located on the base 10 between the two slide rails 11. A drive motor 21 is located in the middle of the sliding seat 20. The output shaft of the drive motor 21 passes downward through the sliding seat 20 and has a gear 22 at its end, which meshes with the rack 13. The drive motor 21 drives the gear 22 to rotate, and the sliding of the sliding seat 20 is achieved through the interaction with the rack 13.

[0024] An ultrasonic welding assembly 30 is installed on each side of the sliding base 20, located on both sides of the drive motor 21 along the length of the base 10. The workpiece placement fixture 40 includes two sets of placement racks 41 arranged at intervals, on which the workpieces to be welded are placed. This allows for the simultaneous welding of two sets of workpieces, further improving work efficiency.

[0025] The ultrasonic welding assembly 30 includes a fixed frame 31 mounted on a sliding base 20. A rotating base 32 is mounted on the fixed frame 31, and a robotic arm 33 is rotatably mounted on the rotating base 32. A welding head 34 is connected to the end of the robotic arm 33. The rotating base 32 allows the robotic arm 33 to rotate horizontally, thus accommodating the workpiece placement fixture 40 on both sides of the base 10. An extension frame 35 extends outward from the fixed frame 31, and a placement plate 351 is mounted on the extension frame 35. The placement plate 351 has several placement slots 352 for placing different types of welding heads 34. A connecting plate 36 is mounted at the end of the robotic arm 33, and a sliding cylinder 37 is mounted on the connecting plate 36. A connecting seat 38 is mounted on the slide of the sliding cylinder 37, and a quick-connect connector 39 is mounted at the bottom of the connecting seat 38 for quick-connect engagement with the upper end of the welding head 34. This allows for the placement of various types of welding heads 34 within the slot 352, depending on the needs of the on-site work. The robotic arm can then use the slide cylinder 37 to drive the connecting seat 38 and quick-change connector 39 to move and cooperate with the upper end of the welding head 34, thereby enabling the rapid replacement of the welding head 34.

[0026] A protective canopy 50 is provided on the outside of the base 10. The protective canopy 50 is open on both sides in the width direction of the base 10, and a protective net 51 is provided between the two sets of workpiece placement fixtures 40 on both sides of the base 10. The protective canopy 50 and the protective net 51 are used to protect the working area of ​​the equipment. A control cabinet is also provided outside the protective canopy 50. The control cabinet contains a control system and an ultrasonic generator. The control system is used to control the movement of components such as the drive motor 21, the rotary seat 32, and the robot arm. The ultrasonic generator is used to connect to the welding head 34. A drag chain is also provided inside the base 10 between the two slide rails 11. The drag chain is used for the wiring and air pipes between the control cabinet and the various electrical and pneumatic components on the slide seat 20 to avoid interference of the wiring when the components move.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-station ultrasonic welding device, characterized in that: The device includes a base (10), on which a sliding seat (20) is slidably disposed along its length. An ultrasonic welding assembly (30) is disposed on the sliding seat (20). The ultrasonic welding assembly (30) includes a fixed frame (31) disposed on the sliding seat (20). A rotating seat (32) is disposed on the fixed frame (31). A robotic arm (33) is rotatably disposed on the rotating seat (32). A welding head (34) is connected to the end of the robotic arm (33). Two sets of workpiece placement fixtures (40) are arranged at intervals on both sides of the base (10) along its length.

2. The multi-station ultrasonic welding equipment according to claim 1, characterized in that: The base (10) has two slide rails (11) spaced apart and aligned with its length direction. Several sliders (12) are slidably mounted on the slide rails (11). The sliders (12) on the two slide rails (11) are fixedly connected to the bottom of the sliding seat (20). A rack (13) aligned with its length direction is also mounted on the base (10) between the two slide rails (11). A drive motor (21) is mounted in the middle of the sliding seat (20). The output shaft of the drive motor (21) passes downward through the sliding seat (20) and a gear (22) is mounted at its end. The gear (22) meshes with the rack (13).

3. The multi-station ultrasonic welding equipment according to claim 2, characterized in that: On the sliding seat (20), a set of ultrasonic welding components (30) are arranged on each side of the drive motor (21) along the length of the base (10). The workpiece placement fixture (40) includes two sets of placement racks (41) arranged at intervals, and the placement racks (41) are used to place the workpieces to be welded.

4. The multi-station ultrasonic welding equipment according to claim 1, characterized in that: A cantilever frame (35) is provided on the fixed frame (31) extending outward. A placement plate (351) is provided on the cantilever frame (35). A plurality of placement slots (352) are provided on the placement plate (351). Different types of welding heads (34) are placed in the placement slots (352).

5. A multi-station ultrasonic welding device according to claim 4, characterized in that: The end of the robotic arm (33) is provided with a connecting plate (36), and a slide cylinder (37) is provided on the connecting plate (36). A connecting seat (38) is provided on the slide of the slide cylinder (37), and a quick-connect connector (39) is provided at the bottom of the connecting seat (38). The quick-connect connector (39) is used to quickly connect with the upper end of the welding head (34).

6. The multi-station ultrasonic welding equipment according to claim 1, characterized in that: The base (10) is covered with a protective shed (50) on the outside. The protective shed (50) is open on both sides of the base (10) in the width direction. A protective net (51) is provided between the two sets of workpiece placement fixtures (40) on both sides of the base (10).

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