Jacking mechanism and ultrasonic welding apparatus

Abstract

The utility model relates to a jacking mechanism technical field especially relates to a jacking mechanism and ultrasonic welding equipment. Jacking mechanism includes seat frame, lifting line body, horizontal moving mechanism and conversion mechanism. Lifting line body is along the first direction of seat frame and is arranged in seat frame, and has the butt joint position of butt joint commodity flow line body and the welding position lower than commodity flow line body. Horizontal moving mechanism is arranged in seat frame. Conversion mechanism includes pivot and the push board of setting in pivot, pivot rotatory mounting is arranged in seat frame, and one end of push board is slidably contacted in lifting line body, and horizontal moving mechanism and the other end transmission connection of push board are connected, to drive push board and pivot relative to seat frame synchronous rotation, and through push board support lifting line body and move up and down between welding position and butt joint position. Ultrasonic welding equipment includes above-mentioned jacking mechanism, and lifting line body is moved up and down through the rotation power of push board, avoids the stop or jam of lifting line body when moving up and down, improves the lifting movement precision and stability of jacking mechanism.

Description

Technical Field

[0001] This utility model relates to the field of lifting mechanism technology, and in particular to a lifting mechanism and ultrasonic welding equipment. Background Technology

[0002] The battery cells undergo ultrasonic welding, which involves welding the copper and aluminum tabs of two cells together. The welding mechanism is installed at the welding station on the logistics line, and the welding socket is fixed there. During welding, the copper-aluminum adapter plate below the tab contacts the welding socket plane, the welding head descends and performs the welding, and then returns to its original position after welding. The battery cells are transported via a carrier (pallet). At the welding station, the carrier is lowered to the welding socket by a lifting mechanism. After welding, the lifting mechanism raises the carrier to align with the guide rails of the logistics line, allowing it to be transported along the line to the next workstation.

[0003] In related technologies, conventional lifting mechanisms (lifting cylinders) are typically installed at the welding stations of logistics lines, with one at each of the four corners and the other at the center. The lifting mechanisms at the four corners move in sync with the lifting mechanism at the center via synchronous lifters, collectively supporting the vehicle's lifting and movement. The problem is that multiple lifting mechanisms supporting the vehicle's lifting and movement together not only result in an overly complex overall structure and poor synchronous lifting effect, making it prone to stalling and ensuring the accuracy of the vehicle's lifting and movement, but also cause the lead screws in the lifting mechanisms to wear out, leading to jamming. Utility Model Content

[0004] The purpose of this invention is to provide a lifting mechanism and an ultrasonic welding device to simplify the structure of the lifting mechanism, avoid stalling or jamming during the lifting process, and improve the lifting accuracy and stability of the lifting mechanism.

[0005] To achieve this objective, the technical solution adopted by this utility model is as follows:

[0006] Lifting mechanism, including:

[0007] Frame;

[0008] A lifting line body, which is slidably disposed on the frame along a first direction, and has a docking position for connecting with an external logistics line body and a welding position lower than the logistics line body;

[0009] A lateral movement mechanism is provided on the mounting frame;

[0010] The conversion mechanism includes a rotating shaft and a push plate disposed on the rotating shaft. The rotating shaft is rotatably mounted on the base frame. One end of the push plate slides against the lifting line body. The transverse movement mechanism is drivenly connected to the other end of the push plate to drive the push plate and the rotating shaft to rotate synchronously relative to the base frame, and to support the lifting line body to move up and down between the welding position and the docking position through the push plate.

[0011] As an optional configuration, the lifting line includes two line assemblies arranged opposite each other along a second direction, each line assembly comprising:

[0012] A support plate is slidably disposed on the seat frame along the first direction, and one end of the push plate slidably abuts against the support plate;

[0013] A track extends in a third direction and is positioned at the top of the support plate;

[0014] The first direction, the second direction, and the third direction are set at an angle to any two of them.

[0015] As an optional configuration, the support plate includes:

[0016] The main body plate is slidably mounted on the base frame, and the track is located at the top of the main body plate;

[0017] A protrusion is provided on the inner side of the main body plate. The protrusion has an arc surface, and one end of the push plate slides against the arc surface.

[0018] As an optional configuration, the protrusion is provided with a stop, and along the first direction, one end of the arc surface extends obliquely to the top of the protrusion, and the other end of the arc surface extends obliquely to the stop.

[0019] As an optional solution, one end of the push plate is rotatably equipped with a first roller, which slides against the arc surface.

[0020] As an optional arrangement, one of the main body plate and the base frame is provided with a first slide rail along the first direction, and the other is provided with a first slider, with the first slider slidingly engaging with the first slide rail.

[0021] As an optional solution, the lateral movement mechanism includes:

[0022] A transverse drive component is disposed on the mounting frame;

[0023] A transverse plate, wherein the transverse drive is connected to the transverse plate to move the transverse plate in a third direction, thereby pushing the push plate and the rotating shaft to rotate synchronously relative to the base.

[0024] As an optional configuration, the transverse plate is provided with a second roller, which slides against the other end of the push plate.

[0025] As an optional arrangement, one of the seat frame and the transverse plate is provided with a second slide rail along the third direction, and the other is provided with a corresponding second slider, the second slider slidingly engaging with the second slide rail.

[0026] An ultrasonic welding device includes a welding mechanism and the aforementioned lifting mechanism, wherein the lifting mechanism is used to transport a workpiece to a welding position, and the welding mechanism is used to weld the workpiece located at the welding position.

[0027] The beneficial effects of this utility model are as follows:

[0028] The lifting mechanism proposed in this utility model has a push plate drive connection between the lateral movement mechanism and the conversion mechanism to drive the push plate to rotate axially relative to the base frame around the rotating shaft. As the push plate rotates, the other end of the push plate supports the lifting line to move up and down between the welding position and the docking position. The lateral movement mechanism drives the push plate to rotate, thereby realizing the lifting line to move up and down between the welding position and the docking position. That is, the rotational power of the push plate drives the lifting line to move linearly up and down, eliminating the need for multiple lifting cylinders and synchronous lifting devices. This not only simplifies the overall structure of the lifting mechanism and reduces the synchronization requirements, but also avoids the lifting line from stalling or jamming during the up and down movement between the welding position and the docking position, improving the lifting accuracy and stability of the lifting process.

[0029] The ultrasonic welding equipment proposed in this utility model includes the aforementioned lifting mechanism. The lateral movement mechanism drives the push plate to rotate, thereby enabling the lifting line to move vertically between the welding position and the docking position. That is, the rotational power of the push plate drives the lifting line to move linearly, eliminating the need for multiple lifting cylinders and synchronous lifting devices. This not only simplifies the overall structure of the lifting mechanism and reduces the synchronization requirements of the lifting mechanism, but also avoids the lifting line from stalling or getting stuck when moving vertically between the welding position and the docking position, thus improving the lifting accuracy and stability of the lifting process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the vehicle sliding to the track of the lifting mechanism provided in this embodiment of the utility model;

[0031] Figure 2 This is a schematic diagram of the lifting mechanism provided in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the lifting mechanism provided in this embodiment of the utility model when the lifting line is in the docking position.

[0033] The component names and labels in the diagram are as follows:

[0034] 100. Battery cell; 10. Carrier; 20. Clamp;

[0035] 1. Seat frame; 2. Lifting line; 21. Support plate; 211. Main plate; 212. Protrusion; 2121. Arc surface; 2122. Stop block; 22. Track; 3. Horizontal movement mechanism; 31. Horizontal movement drive component; 32. Horizontal movement plate; 321. Second roller; 4. Rotating shaft; 5. Push plate; 51. First roller; 6. First slide rail; 7. First slider; 8. Second slide rail; 9. Second slider. Detailed Implementation

[0036] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] This embodiment proposes an ultrasonic welding device, which includes a welding mechanism and a lifting mechanism. The lifting mechanism is used to transport the workpiece to the welding position, and the welding mechanism is used to weld the workpiece located at the welding position. In this embodiment, the workpiece is a battery cell, and the welding mechanism is used in the ultrasonic welding process of the battery cell to weld the copper and aluminum tabs of two battery cells together.

[0042] like Figure 1 As shown, two battery cells 100 are placed on a carrier 10 (usually a tray). A clamp 20 is installed on the carrier 10 to clamp and fix the battery cells 100. The copper tabs of the two battery cells 100 are positioned opposite each other, with a copper adapter plate stacked below them. The aluminum tabs of the two battery cells 100 are also positioned opposite each other, with an aluminum adapter plate stacked below them. Guide wheels and driving elements (such as motors) for rotating the guide wheels are installed on the left and right sides of the carrier 10. The guide wheels on the left and right sides slide and engage with two parallel guide rails on the logistics line, allowing the battery cells 10 to be transferred along the logistics line via the carrier 10. A welding mechanism is installed at the welding station on the logistics line. The welding mechanism includes a welding cylinder and a welding head. The welding cylinder drives the welding head to move up and down along the height direction (vertical direction in the figure) at the welding station. When the carrier 10 moves to the welding station, it detaches from the logistics line and is lowered by a lifting mechanism at the welding station, ensuring that the copper-aluminum adapter plates in the carrier 10 contact the welding base plane at the welding station. The welding cylinder drives the welding head to descend and complete the welding process, welding the copper tabs of the two battery cells 100 to the copper adapter plates and the aluminum tabs of the two battery cells 100 to the aluminum adapter plates. After completing the welding operation, the welding head returns to its original position and rises. Finally, the lifting mechanism lifts the carrier 10 until it is flush with the guide rails on both sides of the logistics line, allowing the carrier 10 to continue transporting along the logistics line to the next station.

[0043] Currently, conventional lifting mechanisms (lifting cylinders) are typically installed at the welding stations of logistics lines, with one at each of the four corners and the other at the center. The lifting mechanisms at the four corners move in sync with the lifting mechanism at the center via synchronous lifters, collectively supporting the carrier 10 to achieve lifting and movement. However, because multiple lifting mechanisms jointly support the lifting and movement of the carrier 10, the overall structure is overly complex, the synchronous lifting effect is poor, and stalling is common, making it difficult to guarantee the lifting and movement accuracy of the carrier 10. Furthermore, the lead screws in the lifting mechanisms are prone to wear, leading to jamming.

[0044] To solve the above problems, such as Figure 2 and Figure 3 As shown, this embodiment also proposes a lifting mechanism, which includes a base frame 1, a lifting line 2, a lateral movement mechanism 3, and a conversion mechanism. The lifting line 2 is slidably mounted on the base frame 1 along a first direction (the vertical direction in the figure), and has a docking position for connecting with an external logistics line and a welding position lower than the logistics line. The lateral movement mechanism 3 is mounted on the base frame 1. The conversion mechanism includes a rotating shaft 4 and a push plate 5 mounted on the rotating shaft 4. The rotating shaft 4 is rotatably mounted on the base frame 1. One end of the push plate 5 slides against the lifting line 2. The lateral movement mechanism 3 is driven to the other end of the push plate 5 to drive the push plate 5 and the rotating shaft 4 to rotate synchronously relative to the base frame 1, and supports the lifting line 2 to move up and down between the welding position and the docking position. The lateral movement mechanism 3 is driven to the push plate 5 of the conversion mechanism to drive the push plate 5 to rotate about the axis of the rotating shaft 4 relative to the base frame 1. As the push plate 5 rotates, the other end of the push plate 5 supports the lifting line 2 to move up and down between the welding position and the docking position. The lateral movement mechanism 3 drives the push plate 5 to rotate, thereby enabling the lifting line 2 to move up and down between the welding position and the docking position. In other words, the rotational power of the push plate 5 drives the lifting line 2 to move up and down in a straight line. This eliminates the need for multiple lifting cylinders and synchronous lifting devices, which not only simplifies the overall structure of the lifting mechanism and reduces the synchronization requirements of the lifting mechanism, but also avoids the lifting line 2 from stalling or getting stuck when moving up and down between the welding position and the docking position, thus improving the lifting accuracy and stability of the lifting process.

[0045] like Figure 2As shown, the lifting line 2 includes two line components arranged opposite each other along a second direction (left-right direction in the figure). Each line component includes a support plate 21 and a track 22. The support plate 21 is slidably mounted on the seat 1 along a first direction, and one end of the push plate 5 slidably abuts against the support plate 21. The track 22 extends along a third direction (front-back direction in the figure) and is located at the top of the support plate 21. Any two of the first, second, and third directions are angled. By setting up two line components, the tracks 22 of the two line components are aligned with the two guide rails of the external logistics line, allowing the guide wheels on the left and right sides of the carrier 10 to move smoothly between the aligned tracks 22 and the guide rails. The aforementioned first, second, and third directions are perpendicular to each other.

[0046] like Figure 2 and Figure 3 As shown, the support plate 21 includes a main plate 211 and a protrusion 212. The main plate 211 is slidably mounted on the base 1, and the track 22 is mounted on the top of the main plate 211. The protrusion 212 is located on the inner side of the main plate 211 and has an arc surface 2121. One end of the push plate 5 slides against the arc surface 2121. When the push plate 5 rotates relative to the base 1 with the rotating shaft 4 under the drive of the transverse mechanism 3, one end of the push plate 5 slides along the arc surface 2121 of the protrusion 212 to support and push the protrusion 212 and the main plate 211 to move up and down between the welding position and the butt joint position in the first direction.

[0047] Specifically, the lifting line 2 includes two protrusions 212 arranged opposite each other along the second direction. The protrusions 212 are fixedly installed on the corresponding main body plate 211 by bolts or other fasteners to ensure that the main body plate 211 and the protrusions 212 move synchronously up and down. The rotating shaft 4 is provided with two push plates 5 spaced apart along its axial direction, so that one end of the two push plates 5 abuts against the arc surface 2121 of the corresponding protrusions 212. That is, the power transmission between the conversion mechanism and the lifting line 2 is achieved through two point contacts, so that the lifting line 2 is only subjected to force at two points. While ensuring stable support for the lifting line 2, it also simplifies the structure of the lifting mechanism and enhances the stability of the lifting line 2 in the up and down movement between the welding position and the docking position.

[0048] Furthermore, the protrusion 212 is provided with a stop 2122. Along the first direction, one end of the arc surface 2121 extends obliquely to the top of the protrusion 212, and the other end of the arc surface 2121 extends obliquely to the stop 2122. By providing the stop 2122, the extreme displacement of the push plate 5 sliding on the arc surface 2121 is limited, preventing the push plate 5 from disengaging from the arc surface 2121, thereby ensuring the reliability and stability of the power transmission between the conversion mechanism and the lifting line 2. Specifically, the protrusion 212 is provided with a stop 2122 at its bottom end along the first direction to maximize the length of the arc surface 2121, thereby increasing the sliding range of the push plate 5 along the arc surface 2121, that is, increasing the lifting distance of the lifting line 2.

[0049] like Figure 2 and Figure 3 As shown, a first roller 51 is rotatably mounted on one end of the push plate 5, and the first roller 51 slides against the arc surface 2121. The push plate 5 abuts against the arc surface 2121 through the first roller 51, so that the first roller 51 rolls along the arc surface 2121. That is, there is rolling friction between the push plate 5 and the arc surface 2121. On the one hand, this greatly reduces the friction between the push plate 5 and the protrusion 212, reduces the resistance of the protrusion 212 to the rotation of the push plate 5, and makes the rotation of the push plate 5 relative to the base 1 smoother. On the other hand, it also reduces the wear of the push plate 5 and the arc surface 2121, and improves the protection of the push plate 5 and the protrusion 212.

[0050] Furthermore, one of the main body plate 211 and the base frame 1 is provided with a first slide rail 6 along a first direction, and the other is provided with a corresponding first slider 7, with the first slider 7 slidingly engaged with the first slide rail 6. By providing the sliding engagement of the first slider 7 and the first slide rail 6, the lifting and lowering movement of the main body plate 211 between the welding position and the butt joint position is guided and limited, improving the accuracy and stability of the lifting and lowering movement of the main body plate 211. In this embodiment, the base frame 1 is provided with a first slide rail 6 along a first direction, and the main body plate 211 is provided with a corresponding first slider 7. When the push plate 5 rotates on the base frame 1, the push plate 5 supports and pushes the main body plate 211 to move up and down between the welding position and the butt joint position, and the first slider 7 of the main body plate 211 slides up and down along the first slide rail 6 in the first direction. In other embodiments, the main body plate 211 is provided with a first slide rail 6 along the first direction of the base frame 1, and the base frame 1 is provided with a corresponding first slider 7.

[0051] Specifically, in each line assembly, the main body plate 211 is provided with two first sliders 7 spaced apart along a third direction, and the support frame 1 is provided with two parallel first slide rails 6, so as to prevent the main body plate 211 from shifting position during lifting and moving, and further improve the accuracy and stability of the lifting and moving of the main body plate 211. Of course, the number of first sliders 7 and first slide rails 6 can also be three or four or more, which is not specifically limited here.

[0052] like Figure 2 and Figure 3 As shown, the lateral movement mechanism 3 includes a lateral movement drive 31 and a lateral movement plate 32. The lateral movement drive 31 is mounted on the base 1. The lateral movement drive 31 is connected to the lateral movement plate 32 in a transmission manner, causing the lateral movement plate 32 to move along a third direction, thereby pushing the push plate 5 and the rotating shaft 4 to rotate synchronously relative to the base 1. The lateral movement drive 31 pushes the lateral movement plate 32 to move along a third direction, and through the lateral movement plate 32, pushes the push plate 5 to rotate, thus converting the thrust of the lateral movement plate 32 along the third direction into the rotational motion of the push plate 5. The aforementioned lateral movement drive 31 is a motor. The motor has a simple structure and high control precision, so that the lateral movement plate 32 has high movement precision along the third direction.

[0053] Specifically, the lateral drive component 31 drives the lateral plate 32 to move along a third direction via a lead screw assembly, further improving the movement accuracy of the lateral plate 32 along this direction. Moreover, the axial (third-direction) dimension of the lead screw assembly is small, saving installation space for the lateral mechanism 3 and making the lifting mechanism more compact. Furthermore, the lateral drive component 31, the lead screw assembly, and the lateral plate 32 enable modular assembly of the lateral mechanism 3, improving the efficiency of disassembly and assembly and facilitating installation and maintenance. Since the lead screw assembly is a conventional mechanical power transmission component, its structure will not be described in detail.

[0054] Furthermore, the transverse plate 32 is provided with a second roller 321, which slides against the other end of the push plate 5. The transverse plate 32 abuts against the push plate 5 through the second roller 321, so that the second roller 321 rolls along the surface of the push plate 5. That is, there is rolling friction between the transverse plate 32 and the push plate 5. On the one hand, this greatly reduces the friction between the transverse plate 32 and the push plate 5, making the rotation of the push plate 5 relative to the base 1 smoother; on the other hand, it also reduces the wear of the transverse plate 32 and the push plate 5, and improves the protection of the transverse plate 32 and the push plate 5.

[0055] It should be noted that during the rotation of the push plate 5 relative to the base 1, the bottom end of the push plate 5 will not come into contact with the transverse plate 32, so as to avoid interference between the push plate 5 and the transverse plate 32, thereby preventing the transverse plate 32 from blocking the rotation of the push plate 5 and causing the push plate 5 to jam.

[0056] like Figure 2As shown, one of the base frame 1 and the transverse plate 32 is provided with a second slide rail 8 along a third direction, and the other is provided with a corresponding second slider 9, which slides in conjunction with the second slide rail 8. By providing the slidingly engaged second slider 9 and second slide rail 8, the movement of the transverse plate 32 along the third direction is guided and limited, improving the movement accuracy and stability of the transverse plate 32. In this embodiment, the base frame 1 is provided with a second slide rail 8 along a third direction, and the transverse plate 32 is provided with a corresponding second slider 9. When the transverse plate 32 reciprocates along the third direction, the second slider 9 reciprocates along the second slide rail 8 along the third direction. In other embodiments, the transverse plate 32 is provided with a second slide rail 8 along a first direction, and the base frame 1 is provided with a corresponding second slider 9.

[0057] Specifically, the transverse plate 32 is U-shaped, giving it two extended arms spaced apart along a second direction. A second roller 321 is rotatably mounted on the upper surface of each extended arm, and a second slider 9 is mounted on the lower surface of each extended arm. Two parallel second slide rails 8 are provided on the frame 1 to prevent the transverse plate 32 from shifting position along a third direction, further improving the moving accuracy and stability of the transverse plate 32.

[0058] For ease of understanding, the specific working process of ultrasonic welding equipment is as follows:

[0059] like Figure 3 As shown, when the carrier 10 carrying the battery cell 100 moves from the external logistics line to the welding station (at this time, the docking position), the guide wheels on the left and right sides of the carrier 10 slide from the guide rails of the logistics line to the track 22 of the lifting line 2. The transverse drive 31 drives the transverse plate 32 to move from back to front along a third direction, the push plate 5 rotates clockwise around the axis of the rotating shaft 4, and the first roller 51 rolls from bottom to top along the arc surface 2121, so that the lifting line 2 descends from the docking position to the welding position. At this time, the copper-aluminum adapter piece in the carrier 10 contacts the welding seat plane at the welding station to provide good support for the copper-aluminum adapter piece. The welding cylinder drives the welding head to descend to the welding position and complete the welding. After completing the welding operation, the welding head resets and rises. Then, the transverse drive 31 drives the transverse plate 32 to move from front to back along a third direction, so as to push the push plate 5 to rotate counterclockwise around the axis of the rotating shaft 4. The first roller 51 rolls from top to bottom along the arc surface 2121, so that the lifting line 2 is raised from the welding position to the docking position. The guide wheels on the left and right sides of the carrier 10 slide from the track 22 of the lifting line 2 to the guide rail of the external logistics line, so that the carrier 10 can continue to be transported along the logistics line to the rear work station.

[0060] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting mechanism, characterized in that, include: Frame (1); The lifting line (2) is slidably disposed on the frame (1) along the first direction, and has a docking position for docking with the external logistics line and a welding position lower than the logistics line; A transverse movement mechanism (3) is provided on the frame (1); The conversion mechanism includes a rotating shaft (4) and a push plate (5) disposed on the rotating shaft (4). The rotating shaft (4) is rotatably mounted on the frame (1). One end of the push plate (5) slides against the lifting line (2). The transverse mechanism (3) is connected to the other end of the push plate (5) to drive the push plate (5) and the rotating shaft (4) to rotate synchronously relative to the frame (1). The push plate (5) supports the lifting line (2) to move up and down between the welding position and the docking position.

2. The lifting mechanism according to claim 1, characterized in that, The lifting line (2) includes two line components arranged opposite each other along a second direction, the line components including: The support plate (21) is slidably disposed on the seat frame (1) along the first direction, and one end of the push plate (5) slides against the support plate (21). The track (22) extends in a third direction and is disposed at the top of the support plate (21); The first direction, the second direction, and the third direction are set at an angle to any two of them.

3. The lifting mechanism according to claim 2, characterized in that, The support plate (21) includes: The main body plate (211) is slidably mounted on the seat frame (1), and the track (22) is mounted on the top of the main body plate (211); A protrusion (212) is provided on the inner side of the main body plate (211). The protrusion (212) has an arc surface (2121). One end of the push plate (5) slides against the arc surface (2121).

4. The lifting mechanism according to claim 3, characterized in that, The protrusion (212) is provided with a stop (2122). Along the first direction, one end of the arc surface (2121) extends obliquely to the top of the protrusion (212), and the other end of the arc surface (2121) extends obliquely to the stop (2122).

5. The lifting mechanism according to claim 3, characterized in that, One end of the push plate (5) is rotatably provided with a first roller (51), which slides against the arc surface (2121).

6. The lifting mechanism according to claim 3, characterized in that, One of the main body plate (211) and the seat frame (1) is provided with a first slide rail (6) along the first direction, and the other is provided with a first slider (7) corresponding to it. The first slider (7) slides in cooperation with the first slide rail (6).

7. The lifting mechanism according to any one of claims 1 to 6, characterized in that, The lateral movement mechanism (3) includes: A transverse drive (31) is disposed on the frame (1); The transverse plate (32) is connected to the transverse drive (31) so that the transverse plate (32) moves along a third direction, thereby pushing the push plate (5) and the rotating shaft (4) to rotate synchronously relative to the seat (1).

8. The lifting mechanism according to claim 7, characterized in that, The transverse plate (32) is provided with a second roller (321), which slides against the other end of the push plate (5).

9. The lifting mechanism according to claim 7, characterized in that, One of the seat frame (1) and the transverse plate (32) is provided with a second slide rail (8) along the third direction, and the other is provided with a second slider (9) corresponding to it. The second slider (9) and the second slide rail (8) are in sliding cooperation.

10. An ultrasonic welding equipment, characterized in that, The invention includes a welding mechanism and a lifting mechanism as described in any one of claims 1 to 9, wherein the lifting mechanism is used to transport a workpiece to a welding position, and the welding mechanism is used to weld the workpiece located at the welding position.

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