An ultrasonic welding device for engineering locomotive wiring harnesses

Abstract

This invention relates to the field of wire harness welding technology and discloses an ultrasonic welding device for engineering locomotive wire harnesses. The device includes a base, an ultrasonic welding device mounted on top of the base, and three sets of shell plates on the top of the base. Two shell plates form a group, and a set of clamping plates is arranged between the two shell plates. Each group has three clamping plates. The device also includes a movable plate. It can automatically gather, twist, and shape exposed copper wires in the wire harness, eliminating the problem of scattered copper wires. It also enables automated wire harness transfer and docking. A staggered welding mechanism drives the wire harness ends to overlap at different heights, ensuring that the ultrasonic welding operations do not interfere with each other and that fusion is sufficient. The device adopts a fully mechanical linkage design, has a high degree of automation, is adaptable to different specifications of engineering locomotive wire harnesses, and the welding formation is not affected by loose copper wires. It operates stably and can meet the needs of large-scale continuous welding processing of wire harnesses.

Description

Technical Field

[0001] This invention relates to the field of wire harness welding technology, and in particular to an ultrasonic welding device for engineering locomotive wire harnesses. Background Technology

[0002] The internal wiring of engineering locomotives is complex, and a large number of wire harnesses need to be electrically connected by ultrasonic welding. This process is widely used in locomotive wire harness processing due to its advantages of high welding efficiency and good connection stability.

[0003] Existing ultrasonic welding methods typically require stripping the insulation layer of the engineering locomotive wiring harness before welding the copper wires. Because the internal copper wires are prone to loosening and branching after the insulation is removed, traditional ultrasonic welding equipment directly welds these scattered wires, easily leading to defects such as incomplete welds, warped wires, and insufficient weld strength. This significantly reduces the reliability of the wiring harness. Furthermore, the gathering and twisting of the copper wires is mostly done manually, which is not only labor-intensive but also makes it difficult to ensure processing consistency and can easily cause hand injuries to workers. Existing equipment has a simple clamping structure, making it impossible to accurately center and position the wiring harness. During transport, the wiring harness is prone to shifting and the mechanism may jam, resulting in poor positioning accuracy. It also cannot achieve misaligned overlapping welding of the wiring harness ends, has weak adaptability to different specifications of wiring harnesses, and has a low overall level of automation, failing to meet the high-volume, high-standard welding processing needs of engineering locomotive wiring harnesses. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing technology has the disadvantage of loose copper wire affecting the welding effect. To this end, we propose an ultrasonic welding device for engineering locomotive wiring harnesses.

[0005] To achieve the above objectives, this application employs the following ultrasonic welding device for engineering locomotive wiring harnesses, comprising a base, an ultrasonic welding device mounted on the top of the base, three sets of shell plates arranged in pairs on the top of the base, a set of clamping plates between two shell plates, and three clamping plates in each set. The base is provided with:

[0006] Three sets of wire harness positioning mechanisms, each including a hydraulic rod that drives the clamping plate to move radially and a motor that drives the shell plate to rotate as a whole;

[0007] The mobile feeding mechanism includes a mobile module and a mobile plate mounted on the mobile module. V-shaped grooves are provided on both sides of the mobile plate. A sliding column is slidably connected in the V-shaped groove. The sliding column is connected to the transverse plate. The mobile feeding mechanism drives the wire harness positioning mechanisms on both sides to move closer to or further away from the wire harness positioning mechanism in the middle.

[0008] The staggered welding mechanism includes a triangular base plate fixed to the bottom of the shell plate and an adjustable inclined plate. The inclined plate and the inclined surface of the triangular base plate cooperate to change the height of the shell plate. When the moving feeding mechanism moves the wire harness to the ultrasonic welding device, the staggered welding mechanism makes the ends of the wire harnesses on both sides form a staggered overlap.

[0009] A guiding and correcting mechanism includes a housing and a spring. The sliding column is slidably connected inside the housing, and the spring is connected between the sliding column and the housing to guide the sliding column to reset.

[0010] Preferably, the wire harness positioning mechanism includes:

[0011] A sleeve plate is fixedly connected to the top of the base. A limiting plate is fixedly connected between two shell plates. An internal toothed circular plate is rotatably connected inside the limiting plate. Three first gears are rotatably connected between the two shell plates. Three sliding grooves are opened on the surface of the shell plates. A toothed plate is provided on one side of the clamping plate. One side of the toothed plate is meshed with the surface of the first gear. A hydraulic rod is rotatably connected between the two shell plates. The output end of the hydraulic rod is rotatably connected to the top of the internal toothed circular plate. A toothed ring plate is rotatably connected to the inner wall of the sleeve plate. A motor is fixedly connected to the top of the sleeve plate. A second gear is fixedly connected to the output end of the motor. The bottom of the second gear is meshed with the surface of the toothed ring plate.

[0012] Preferably, the mobile feeding mechanism includes:

[0013] Two long plates are provided, with a guide groove in the middle of each long plate. The moving module is installed in the middle of the base. The moving plate is installed on the surface of the moving module. Slide plates are slidably connected to both sides of each long plate. A long rod is fixedly connected between the two slide plates. A transverse plate is slidably connected to the surface of the long rod. A sliding column is fixedly connected to the bottom of the transverse plate. The sliding column is slidably connected to the inner wall of the moving module and the inner wall of the guide groove.

[0014] Preferably, the misaligned welding mechanism includes:

[0015] Limiting rods are slidably connected to both sides of the triangular base plate. The bottom of the limiting rods is fixedly connected to the transverse plate. A lead screw is threaded to the top of the slide plate. One end of the lead screw is rotatably connected to an inclined plate. The bottom of the inclined plate slides along the surface of the long rod. The bottom of the triangular base plate is a triangular inclined surface.

[0016] Preferably, the guiding correction mechanism includes:

[0017] The long plate has an inner groove, and the sleeve is slidably connected to the inner wall of the inner groove. Self-lubricating rods are fixedly connected to both sides of the inner wall of the inner groove, and both sides of the sleeve slide along the surface of the self-lubricating rods.

[0018] Preferably, a support plate is fixedly connected to one side of the shell plate, and the top of the support plate has an arc-shaped structure.

[0019] Preferably, the clamping surface of the clamping plate is an inclined surface. By moving each clamping plate laterally, the inclined surfaces of the three clamping plates are forced to intersect, changing the size of the central triangular area to form a three-point centered clamping.

[0020] Preferably, the clamping surface of each set of clamps is in contact with the inclined side surface of the adjacent clamp.

[0021] The technical effects and advantages of this invention are as follows:

[0022] In this invention, the bare copper wires can be automatically gathered, fastened and twisted, replacing the traditional manual sorting method. The wire harness is automatically centered and positioned by the clamping structure of the inclined plate. It can adapt to locomotive wire harnesses with different wire diameters and strand numbers, effectively solving problems such as poor soldering and warping caused by the scattered bare copper wires. The welding quality and processing consistency are significantly improved, while reducing the intensity of manual labor and safety hazards.

[0023] In this invention, the wire harness transfer, copper wire pretreatment, and end-joining processes can be linked together. The processes are closely connected, which greatly reduces the equipment downtime and improves the overall processing efficiency. With the help of the staggered welding mechanism, the wire harness clamping height can be flexibly adjusted so that the ends of the two sets of wire harnesses are staggered and overlapped. This provides an independent working space for the ultrasonic welding device, avoids mutual interference during the welding process, and allows the wire harness to fuse more fully, further strengthening the weld connection strength and reliability.

[0024] In this invention, a guiding and correcting mechanism is used to provide full-process directional guidance and elastic reset for the wire harness transfer component, which can effectively avoid the phenomenon of mechanism deviation and jamming, and ensure the positioning and docking accuracy of the wire harness. The arc-shaped support plate on the side of the shell plate can stably support the wire harness and protect the insulation layer. The adjacent clamping plates are tightly fitted with no gaps to prevent copper wires from getting stuck and causing failure. The whole machine has strong operational stability and durable structure, and can meet the needs of large-scale continuous welding production of engineering locomotive wire harnesses for a long time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 This is a sectional view of the vertical cross-section structure of the present invention;

[0027] Figure 3 This is an exploded view of a portion of the wire harness positioning mechanism of the present invention;

[0028] Figure 4 This is an exploded view of the internal structure of the shell plate of the present invention;

[0029] Figure 5 This is an exploded view of part of the mobile feeding mechanism of the present invention;

[0030] Figure 6 This is a cross-sectional view of the internal structure of the long plate of the present invention;

[0031] Figure 7 This is an exploded view of a portion of the misaligned welding mechanism of the present invention.

[0032] Legend: 1. Base; 2. Ultrasonic welding device; 3. Shell plate; 4. Clamping plate; 5. Moving plate; 6. Sleeve plate; 7. Limiting plate; 8. Internal gear plate; 9. First gear; 10. Slide groove; 11. Gear plate; 12. Hydraulic rod; 13. Gear ring plate; 14. Motor; 15. Second gear; 16. Long plate; 17. Guide groove; 18. V-groove; 19. Moving module; 20. Slide plate; 21. Long rod; 22. Transverse plate; 23. Sliding column; 24. Triangular base plate; 25. Limiting rod; 26. Lead screw; 27. Inclined plate; 28. Shell; 29. ​​Inner groove; 30. Self-lubricating rod; 31. Spring; 32. Support plate. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the invention in a schematic manner, and therefore only show the components relevant to the invention.

[0034] Reference Figure 1 - Figure 7 As shown, the present invention provides an ultrasonic welding device for engineering locomotive wiring harnesses, including a base 1, an ultrasonic welding device 2 installed on the top of the base 1, three sets of shell plates 3 arranged on the top of the base 1, two shell plates 3 forming a group, a set of clamping plates 4 arranged between two shell plates 3, and three clamping plates 4 in each group, and also includes a movable plate 5.

[0035] Furthermore, the top of the base 1 is provided with three sets of wire harness positioning mechanisms. The middle wire harness positioning mechanism clamps the wire harness and then twists the wire harness welding end, so that the loose end of the wire harness copper wire is clamped by the shell plate 3 and twisted to gather and tighten the dispersed copper wire, ensuring that the copper wire will not be scattered during the subsequent welding process.

[0036] Specifically, refer to Figure 1 - Figure 4 As shown, the wire harness positioning mechanism includes:

[0037] A sleeve plate 6 is fixedly connected to the top of the base 1. A limiting plate 7 is fixedly connected between the two shell plates 3. An internal toothed circular plate 8 is rotatably connected inside the limiting plate 7. Three first gears 9 are rotatably connected between the two shell plates 3. Three sliding grooves 10 are opened on the surface of the shell plates 3. A toothed plate 11 is provided on one side of the clamping plate 4. One side of the toothed plate 11 is meshed with the surface of the first gear 9. A hydraulic rod 12 is rotatably connected between the two shell plates 3. The output end of the hydraulic rod 12 is rotatably connected to the top of the internal toothed circular plate 8. A toothed ring plate 13 is rotatably connected to the inner wall of the sleeve plate 6. A motor 14 is fixedly connected to the top of the sleeve plate 6. A second gear 15 is fixedly connected to the output end of the motor 14. The bottom of the second gear 15 is meshed with the surface of the toothed ring plate 13. Before welding, the insulation layer on the surface of the wire harness usually needs to be stripped to expose the copper wires inside. However, these copper wires are usually scattered because they are not bound by an outer insulation layer, and cannot be directly ultrasonically welded.

[0038] At this point, the staff needs to place the two wire harnesses to be welded into the wire harness positioning mechanisms on both sides, so that the wire harnesses pass through the clamping area formed by the three clamping plates 4. It should be noted that the clamping area of ​​the clamping plates 4 is the insulation layer of the wire harness, not the copper wire, and the copper wire ends are all facing the wire harness positioning mechanism in the middle. Then, the copper wires move with the wire harness positioning mechanisms on both sides, so that the copper wires enter the wire harness positioning mechanism in the middle.

[0039] The copper wire then enters the central wire harness positioning mechanism. The copper wire does not need to fully enter the clamping plate 4 of the central wire harness positioning mechanism. It only needs to extend a little bit into the clamping area of ​​the clamping plate 4. The specific size can be set according to the specifications of the copper wire. Therefore, the clamping plate 4 simply clamps, centers, gathers, and fixes the scattered ends of the copper wire.

[0040] At this time, the wire harness is fixed and clamped by the wire harness positioning mechanism on the side, and the copper wire end of the wire harness is in the middle of the wire harness positioning mechanism. Subsequently, the hydraulic rod 12 extends and pushes the internal toothed circular plate 8 to deflect counterclockwise. The internal toothed circular plate 8 is limited inside the limiting plate 7 and will rotate counterclockwise by a certain angle inside the limiting plate 7. This makes the rotation of the internal toothed circular plate 8 drive the first gear 9 to rotate synchronously. The first gear 9 meshes with the toothed plate 11 and drives the clamping plate 4 to move laterally along the slide groove 10. By changing the slope of the clamping plate 4, the triangular surface formed by the clamping plate 4 is reduced, so that the clamping plate 4 can clamp and gather the copper wire inside, pinch the loose copper wire, and prevent it from spreading out during subsequent welding. The above process is consistent with the operation of the wire harness positioning mechanisms on both sides, only the extension and retraction length of the hydraulic rod 12 changes to adapt to the size and specifications of the wire harness.

[0041] When the hydraulic rod 12 retracts to the specified distance under the extrusion force, it stops moving, causing the clamping plate 4 in the middle area to clamp the copper wire end of the wire harness. This, along with the wire harness positioning mechanisms on both sides, fixes the wire harness. Subsequently, the motor 14 drives the second gear 15 to rotate, causing the second gear 15 to mesh with and drive the gear ring plate 13 to rotate. The gear ring plate 13 rotates inside the sleeve plate 6. The clamping plate 4 in this area clamps the copper wire of the wire harness. When the gear ring plate 13 rotates, it drives the wire harness positioning mechanism in the middle to rotate synchronously for several turns before stopping. This allows the clamping plate 4 to clamp and tighten the loose copper wire by its own rotation, effectively preventing problems such as copper wire splitting, loosening, and warping.

[0042] After being gathered and twisted, the copper wires are compact and neat, with each individual wire tightly attached and the end shape uniform. This completely solves the problem of bare copper wires being scattered and unable to be directly welded. The equipment can flexibly adjust the clamping distance and number of rotations according to wire harnesses of different sizes and strands, making it highly adaptable. The entire clamping, gathering, and twisting process is completed automatically and continuously, with uniform clamping force and smooth rotation, preventing bending, breakage, or damage to the insulation layer of the copper wires. The pre-treated wire harness ends fully meet the process requirements of ultrasonic welding, with sufficient welding contact area and uniform force, significantly improving welding strength and product qualification rate. At the same time, it reduces manual finishing processes and effectively improves the overall production efficiency of wire harness processing.

[0043] Furthermore, the base 1 is also equipped with a moving feeding mechanism. The moving feeding mechanism clamps the wire harness and moves it back and forth, and drives the wire harness to move relatively close at both the front and rear ends, automatically feeding the wire harness during the initial processing of the welding wire harness and automatically docking it during welding.

[0044] Specifically, refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the mobile feeding mechanism includes:

[0045] Two long plates 16 are provided, with a guide groove 17 in the middle of each long plate 16. V-shaped grooves 18 are provided on both sides of the movable plate 5. A movable module 19 is installed in the middle of the base 1, and the movable plate 5 is mounted on the surface of the movable module 19. Slide plates 20 are slidably connected to both sides of the long plates 16. A long rod 21 is fixedly connected between the two slide plates 20. A transverse sliding plate 22 is slidably connected to the surface of the long rod 21. A sliding column 23 is fixedly connected to the bottom of the transverse sliding plate 22 and slidably connected to the V-shaped grooves 18. The inner wall of the guide groove 17 is slidably connected to the inner wall of the sliding column 23. During the above process, after the wire harness positioning mechanisms on both sides clamp the wire harness, the wire harness will be driven by the operation of this mechanism to enter the wire harness positioning mechanism in the middle for fastening. The moving module 19 drives the moving plate 5 to move forward in a straight line, while the V-shaped groove 18 is sleeved on the surface of the sliding column 23. The sliding column 23 is limited by the guide of the rear inclined surface of the V-shaped groove 18. The sliding column 23 will slide along the transverse groove at the front end of the guide groove 17, so that the sliding column 23 moves laterally along the guide groove 17.

[0046] The sliding column 23 moves horizontally, causing the horizontal plate 22 and the wire harness positioning mechanism installed at the top to move synchronously. The horizontal plate 22 drags the long rod 21 and the slide plate 20 to slide along both sides of the long plate 16, thereby enabling the V-shaped groove 18 to guide the sliding column 23 to move inward. This allows the wire harness positioning mechanisms on both sides to clamp the wire harness and move it closer to the central wire harness positioning mechanism. At this time, the loose copper wire is tightly attached to the central wire harness positioning mechanism for processing. Then, the moving module 19 moves in the opposite direction, causing the moving plate 5 to move backward as a whole. This causes the V-shaped groove 18 to move the sliding column 23 outward along the horizontal groove of the guide groove 17. After gradually entering the vertical groove, the guide groove 17 guides the sliding column 23 to move backward along the vertical groove. At the last side position, the inclined groove at the front end of the V-shaped groove 18 guides the sliding column 23 to move inward along the horizontal groove at the rear end of the guide groove 17.

[0047] After the wire harness positioning mechanisms on both sides clamp the processed wire harness and move backward to both sides of the ultrasonic welding device 2, the wire harness positioning mechanisms on both sides move inward and place the processed wire harness at the welding processing area of ​​the ultrasonic welding device 2. Then the wire harness positioning mechanisms stop, and the ultrasonic welding device 2 runs to weld the wire harness. Finally, the wire harness positioning mechanisms on both sides release the clamping expansion plate 4, and the operator pulls out the entire welded wire harness. Then the moving module 19 resets and runs, driving the moving plate 5 to make the sliding column 23 and the wire harness positioning mechanisms on both sides reset to the initial position, preparing for the next wire harness welding processing.

[0048] Furthermore, the base 1 is also equipped with a staggered welding mechanism, which is connected to the moving feeding mechanism so that when the wire harness is clamped to the ultrasonic welding device 2, it automatically overlaps at a high degree to achieve the upper and lower bonding welding of the wire harness.

[0049] Specifically, refer to Figure 1 and Figure 7 As shown, the misaligned welding mechanism includes:

[0050] A triangular base plate 24 is fixedly connected to the bottom of two shell plates 3. Limiting rods 25 are slidably connected to both sides of the triangular base plate 24. The bottom of the limiting rods 25 is fixedly connected to the transverse plate 22. A lead screw 26 is threadedly connected to the top of the slide plate 20. One end of the lead screw 26 is rotatably connected to an inclined plate 27. The bottom of the inclined plate 27 slides along the surface of the long rod 21. The bottom of the triangular base plate 24 is a triangular inclined surface. When the moving module 19 moves the sliding column 23 and the wire harness positioning mechanisms on both sides to the front and rear ends, the operator turns the lead screw 26 to push the inclined plate 27 to slide along the surface of the long rod 21, so that the inclined plate 27 moves closer to the wire harness positioning mechanism. The bottom side of the triangular base plate 24 contacts the inclined surface of the inclined plate 27. The forward distance of the inclined plate 27 pushes the entire triangular base plate 24 to slide upward along the limiting rod 25, changing the initial height of the wire harness positioning mechanisms on both sides, so as to change the initial clamping height of the wire harness positioning mechanism according to different specifications and sizes of wire harnesses.

[0051] After adjustment, the height of the triangular base plate 24 can be raised a second time by the inclined panel 27 on the rear side, causing the wire harness positioning mechanism on the other side to be raised a certain distance, while the height on the other side remains unchanged, so that the heights of the wire harness positioning mechanisms on the left and right sides are different, so that the wire harnesses are clamped at different heights. Then the wire harness positioning mechanism clamps the wire harness and moves it to the processing location of the ultrasonic welding device 2.

[0052] Because the wire harnesses are at different heights to prevent interference in this area, and the ultrasonic welding device 2 welds the wire harnesses from both the top and bottom, the staggered ends of the wire harnesses are separated from each other, reserving independent working space for the upper and lower welding. The welding processes of the two sets of wire harnesses do not interfere with each other. With the help of the inclined plate 27, the height of the wire harness positioning mechanism on both sides can be infinitely adjusted. The corresponding misalignment amount can be set for different specifications of wire harnesses to ensure that each set of wire harnesses is in the optimal welding position, so that the ultrasonic welding fusion is more complete and the wire harness connection is greatly improved.

[0053] In Example 2, based on the above examples, the base 1 is further provided with a guiding and correcting mechanism. The guiding and correcting mechanism guides the movement of the wire harness positioning mechanisms on both sides to avoid jamming during the movement of the wire harness positioning mechanisms.

[0054] Specifically, refer to Figure 6 and Figure 7 As shown, the guidance correction mechanism includes:

[0055] The sleeve 28 and the sliding column 23 are slidably connected to the inner wall of the sleeve 28. The inner groove 29 is opened inside the long plate 16. The sleeve 28 is slidably connected to the inner wall of the inner groove 29. Self-lubricating rods 30 are fixedly connected to both sides of the inner wall of the inner groove 29. Both sides of the sleeve 28 slide along the surface of the self-lubricating rods 30. A spring 31 is fixedly connected to one side of the sliding column 23. The other side of the spring 31 is fixedly connected to one side of the inner wall of the sleeve 28. Because the spring 31 pulls the sliding column 23 in the initial position, the initial sliding column 23 is always in the vertical groove of the guide groove 17. When the sliding column 23 moves laterally, it will drive the entire sleeve 28 to slide back and forth along the inner groove 29 and the self-lubricating rod 30. When the sliding column 23 is driven by the V-shaped groove 18 to slide along the horizontal groove of the guide groove 17, the sliding column 23 will move to one side to pull the spring 31 to extend and store force.

[0056] Afterwards, when the V-groove 18 moves in the reverse direction and the initial sliding column 23 slides outward along the horizontal groove of the guide groove 17, the spring 31 will gradually release and pull, pulling the sliding column 23 into the vertical groove of the guide groove 17. This ensures that after each movement of the V-groove 18 inward, the reset action of the V-groove 18 can drive the sliding column 23 to reset to the vertical groove of the guide groove 17 for forward and backward movement, further ensuring the accuracy of the moving plate 5 and the V-groove 18 in guiding the movement of the wire harness positioning mechanism on both sides.

[0057] Example 3, based on the above examples, with reference to... Figure 1 As shown, a support plate 32 is fixedly connected to one side of the shell plate 3. The top of the support plate 32 is an arc-shaped structure. By setting the top of the support plate 32 to be arc-shaped, it is used to hold the wire harness to be processed, avoiding the wire harness itself from bending. At the same time, the arc transition structure can provide good support and guidance for the wire harness. The wire harness can slide smoothly during the entire process of transfer, clamping and welding, effectively preventing the wire harness skin from being scratched or cut by sharp edges, and avoiding secondary damage problems such as insulation layer damage and copper wire exposure.

[0058] Furthermore, refer to Figure 4 As shown, the clamping surface of the clamping plate 4 is an inclined plane. By moving each clamping plate 4 laterally, the inclined planes of the three clamping plates 4 are forced to intersect, changing the size of the central triangular area to form a three-point centered clamping. The structural design of the inclined clamping surface combined with the lateral movement makes the inclined planes of the three sets of clamping plates 4 intersect each other, flexibly adjusting the aperture of the central triangular clamping area. The three-point centered clamping method can automatically center and position the wire harness and exposed copper wire, ensuring that the workpiece is always in the center position. The positioning accuracy is high, the inclined contact force is uniform, and the clamping process will not squeeze or damage the wire harness insulation layer and copper wire. At the same time, the clamping range can be adaptively adjusted according to wire harnesses with different diameters and strand numbers to adapt to various processing specifications.

[0059] Furthermore, refer to Figure 4As shown, the clamping surface of each clamping plate 4 is in contact with the inclined side surface of the adjacent clamping plate 4. When the clamping plate 4 is moved by the operation of the first gear 9, the clamping plate 4 gradually reduces the triangular size of the clamping area. During the movement, one side of the clamping plate 4 is in contact with the clamping surface of another clamping plate 4, so that the clamping plate 4 can reduce and change the size of the clamping triangular area when moving synchronously. At the same time, gaps are avoided between the clamping plates 4, and gaps are avoided from jamming the copper wire of the wire harness, which would cause the device to jam.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An ultrasonic welding device for engineering locomotive wiring harnesses, comprising a base (1), characterized in that: An ultrasonic welding device (2) is installed on the top of the base (1). Three sets of shell plates (3) are arranged in pairs on the top of the base (1). A set of clamping plates (4) is arranged between two shell plates (3). There are three clamping plates (4) in each set. The base (1) is provided with: Three sets of wire harness positioning mechanisms, the wire harness positioning mechanisms include a hydraulic rod (12) that drives the clamping plate (4) to move radially and a motor (14) that drives the shell plate (3) to rotate as a whole. The mobile feeding mechanism includes a mobile module (19) and a mobile plate (5) mounted on the mobile module (19). V-shaped grooves (18) are provided on both sides of the mobile plate (5). A sliding column (23) is slidably connected in the V-shaped groove (18). The sliding column (23) is connected to the transverse plate (22). The mobile feeding mechanism drives the wire harness positioning mechanisms on both sides to move closer to or further away from the wire harness positioning mechanism in the middle. The staggered welding mechanism includes a triangular base plate (24) fixed to the bottom of the shell plate (3) and an adjustable inclined plate (27). The inclined plate (27) and the inclined surface of the triangular base plate (24) cooperate to change the height of the shell plate (3). When the moving feeding mechanism moves the wire harness to the ultrasonic welding device (2), the staggered welding mechanism makes the ends of the wire harnesses on both sides form a high-low staggered overlap.

2. The ultrasonic welding device for engineering locomotive wiring harnesses according to claim 1, characterized in that: The wire harness positioning mechanism includes: A sleeve plate (6) is fixedly connected to the top of the base (1). A limiting plate (7) is fixedly connected between the two shell plates (3). An internal toothed circular plate (8) is rotatably connected inside the limiting plate (7). Three first gears (9) are rotatably connected between the two shell plates (3). Three sliding grooves (10) are opened on the surface of the shell plate (3). A toothed plate (11) is provided on one side of the clamping plate (4). One side of the toothed plate (11) is meshed with the surface of the first gear (9). A hydraulic rod (12) is rotatably connected between the two shell plates (3). The output end of the hydraulic rod (12) is rotatably connected to the top of the internal toothed circular plate (8). A toothed ring plate (13) is rotatably connected to the inner wall of the sleeve plate (6). A motor (14) is fixedly connected to the top of the sleeve plate (6). A second gear (15) is fixedly connected to the output end of the motor (14). The bottom of the second gear (15) is meshed with the surface of the toothed ring plate (13).

3. The ultrasonic welding device for engineering locomotive wiring harnesses according to claim 1 or 2, characterized in that: The mobile loading mechanism includes: Two long plates (16) are provided with a guide groove (17) in the middle of the long plate (16). The moving module (19) is installed in the middle of the base (1). The moving plate (5) is installed on the surface of the moving module (19). Slide plates (20) are slidably connected to both sides of the long plate (16). A long rod (21) is fixedly connected between the two slide plates (20). A transverse plate (22) is slidably connected to the surface of the long rod (21). A sliding column (23) is fixedly connected to the bottom of the transverse plate (22). The sliding column (23) is slidably connected to the inner wall of the moving module (19). The sliding column (23) is slidably connected to the inner wall of the guide groove (17).

4. The ultrasonic welding device for engineering locomotive wiring harnesses according to claim 3, characterized in that: The misaligned welding mechanism includes: Limiting rods (25) are slidably connected to both sides of the triangular base plate (24). The bottom of the limiting rods (25) is fixedly connected to the transverse plate (22). The top of the sliding plate (20) is threaded with a lead screw (26). One end of the lead screw (26) is rotatably connected to an inclined plate (27). The bottom of the inclined plate (27) slides along the surface of the long rod (21). The bottom of the triangular base plate (24) is a triangular inclined surface.

5. The ultrasonic welding device for engineering locomotive wiring harnesses according to claim 3, characterized in that: The base (1) is also provided with a guide correction mechanism, which includes a housing (28) and a spring (31). The sliding column (23) is slidably connected inside the housing (28), and the spring (31) is connected between the sliding column (23) and the housing (28) to guide the sliding column (23) to reset. The long plate (16) has an inner groove (29) inside. The sleeve (28) is slidably connected to the inner wall of the inner groove (29). Self-lubricating rods (30) are fixedly connected to both sides of the inner wall of the inner groove (29). Both sides of the sleeve (28) slide along the surface of the self-lubricating rods (30).

6. The ultrasonic welding device for engineering locomotive wiring harnesses according to claim 1, characterized in that: A support plate (32) is fixedly connected to one side of the shell plate (3), and the top of the support plate (32) is an arc-shaped structure.

7. The ultrasonic welding device for engineering locomotive wiring harnesses according to claim 1, characterized in that: The clamping surface of the clamping plate (4) is an inclined surface. By using the lateral movement of each clamping plate (4), the inclined surfaces of the three clamping plates (4) are forced to intersect, changing the size of the central triangular area to form a three-point centered clamping.

8. The ultrasonic welding device for engineering locomotive wiring harnesses according to claim 1, characterized in that: The clamping surface of each set of clamps (4) is in contact with the inclined side surface of the adjacent clamp (4).

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