Flexible lamp strip welding device based on multi-sensor fusion

Abstract

This invention relates to the field of LED strip welding technology and discloses a flexible LED strip adaptive intelligent welding device based on multi-sensor fusion. The device includes a base with two side plates fixedly mounted on its top. Each side plate has a support fixedly mounted on its outer side. A clamping plate is fixedly mounted on the side of the support that is close to the side plate. A suspension is fixedly mounted on one side of the support. A roller is rotatably mounted between the side plates. An adsorption plate is centrally symmetrically mounted on the outer side of the roller for adsorbing short LED strips and then rotating and conveying them upwards. A docking plate is slidably mounted on the top of the suspension along the length of the adsorption plate to support a long LED strip welded from short LED strips and to align the welding ends by sliding. This flexible LED strip adaptive intelligent welding device based on multi-sensor fusion effectively solves the problem of inaccurate alignment of flexible LED strips before welding in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of LED strip welding technology, specifically to a flexible LED strip welding device based on multi-sensor fusion. Background Technology

[0002] With the rapid development of semiconductor lighting technology, LED flexible light strips have been widely used in interior decoration, landscape lighting and other fields due to their advantages such as high luminous efficiency, flexibility, energy saving and environmental protection. In the production process of LED light strips, it is usually necessary to splice together the produced flexible light strips (FPCs) that are relatively short in length and wide in width using a welding device, and then cut them into long strips for easy assembly and sales.

[0003] In related technologies, there are devices for continuous welding of LED strips. For example, patent CN119216844B provides an LED strip welding device. In this device, when the mounting ring drives the suction cup to rotate directly above the placement plate, the air pump fills the air inlet cylinder through the air supply pipe. The gas entering the air inlet cylinder pushes the suction cup on the movable cylinder through the piston, causing the LED strip to be adsorbed onto the suction cup. As the fixed plate continues to rotate, the suction cup moves the adsorbed LED strip upward. At this time, the subsequent suction cup continues to adsorb the LED strip on the placement plate. When the ends of both LED strips are below the welding head, the welding head welds the two LED strips to connect them. After the two LED strips are welded, the suction cup continues to rotate to rotate the two welded LED strips and move the ends of the subsequent LED strips to below the welding head. At this time, the welding head welds the end of the welded LED strip to the beginning of the unwelded LED strip, thereby achieving the effect of continuous welding of the LED strip.

[0004] Although the existing technical solutions mentioned above stack light strips by setting up an arc-shaped placement plate and using a rotating mounting ring in conjunction with a suction cup to pick up the light strips from the arc-shaped plate and weld them together during rotation to achieve continuous welding, the welding alignment mechanism mainly depends on the position of the light strip when it is picked up. For high-density LED light strips, even small mechanical cumulative errors can lead to solder joint offset or excessively large weld seams, making it difficult to accurately align the welded joints of the light strips and affecting the welding quality of flexible light strips. Summary of the Invention

[0005] To address one of the shortcomings of existing technologies, this invention provides a flexible LED strip welding device based on multi-sensor fusion, which solves the problem of inaccurate alignment before welding flexible LED strips.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flexible LED strip welding device based on multi-sensor fusion, comprising: The support components are rigid support structures that can provide stable support force. The feeding assembly is located on the upper part of the support assembly. The feeding assembly includes a feeding drum that is rotatably connected to the support assembly. Adsorption plates are symmetrically arranged on both sides of the feeding drum. The adsorption plates are connected to the external negative pressure equipment through pipelines. The adsorption plates can adsorb the short light strips to be welded. A docking assembly is disposed on the upper part of the support assembly. The docking assembly includes a docking plate for supporting the long light strip to be welded. The docking plate is located on the upper side of the feeding assembly and can slide in the horizontal direction. A clamping assembly is disposed above the adjacent part of the feeding assembly and the docking assembly. Each clamping assembly includes a pressure plate that can move in the vertical direction. The pressure plate can apply downward pressure to the end of the short or long light strip to be welded. A welding assembly is disposed on one side adjacent to the feeding assembly and the docking assembly. The welding assembly is used to weld short light strips and long light strips. A light strip supply assembly is disposed inside the support assembly. The light strip supply assembly includes a light strip storage box for holding short light strips, and the light strip storage box can supply short light strips to the feeding assembly.

[0007] Preferably, the support component includes: The base is located at the bottom of the support components; Two side plates are vertically arranged on the base, with a gap between them. The light strip supply assembly is located between the two side plates. The feeding drum is rotatably connected to the side plates. A bracket is disposed on the upper part of the side plate and extends upward toward the side plate; Two clamping plates are symmetrically arranged on the upper part of the bracket, with a gap between the two clamping plates. The gap between the two clamping plates is greater than the width of the adsorption plate and the docking plate. The suspension is mounted on the horizontal side of the bracket, and the docking plate of the docking assembly is slidably connected to the suspension.

[0008] Preferably, it also includes: The calibration components are provided in two sets, which are respectively located on the outside of the adsorption plate and the docking plate, and are used to calibrate the placement position of the short light strip and the long light strip.

[0009] Preferably, the outer side of the feeding drum is symmetrically provided with air vents corresponding to the adsorption plate, and the feeding assembly further includes Two guide hoods are symmetrically arranged on the outside of the feeding drum, and each guide hood is connected to one of the vents; The mounting box is fixedly installed at the end of the air guide hood away from the air inlet; the adsorption plate is connected to the air guide hood through the mounting box; the adsorption plate, mounting box, air guide hood and air inlet form a negative pressure adsorption airflow path; A ventilator is installed inside the feeding drum; the ventilator has an air intake hole on its body that can connect with the air inlet. An air pipe is installed at one end of the ventilation cylinder. The air pipe is fixedly connected to the side plate through the outer plate and is used to connect to external negative pressure equipment.

[0010] Preferably, the feeding assembly further includes: A protrusion is fixedly installed at one end of the adsorption plate near the docking plate, and the protrusion is located on the lower side of the welding end of the short light strip to be welded; The feeding assembly also includes: A notch is formed at one end of the docking plate near the adsorption plate, and the notch corresponds to the protrusion; the notch is located on the lower side of the welding end of the long light strip; A guide ramp is positioned on the side of the docking plate near the adsorption plate.

[0011] Preferably, the docking assembly further includes: The U-shaped box has a docking plate fixedly installed inside its body; the U-shaped box is located on the upper side of the suspension and is horizontally slidably connected to the suspension; one of the correction components is located on both sides of the U-shaped box. Each set of the correction components includes: Two calibration plates are symmetrically arranged; the calibration plates are located on both sides of the short or long light strip; the calibration plates are slidably connected to the clamping plate or U-shaped box. Electric push rod B, linked with the correction plate, can drive the correction plate to translate. A rangefinder is mounted on the calibration plate, and the rangefinder can measure the distance between the two calibration plates.

[0012] Preferably, the clamping assembly further includes: A limiting post is fixedly installed on the clamping plate; the limiting post is vertically installed. A fixing plate is horizontally installed at the top of the limiting post; The lifting rod is vertically slidably connected to the limiting column, and the upper end of the pressure plate is rotatably connected to the lifting rod; Torsion spring B is disposed at the connection between the lifting rod and the pressure plate; An electric push rod C is fixedly mounted on the fixed plate, and the movable end of the electric push rod C is connected to the lifting rod. Pressure sensor A is disposed between the movable end of the electric push rod C and the lifting rod.

[0013] Preferably, one set of the clamping components is located above the protrusion, and the width of the clamping plate of the clamping component is smaller than the width of the notch; Another set of clamping components is located above the notch, and the width of the clamping plate of the clamping component is greater than the width of the notch and less than the width of the long light strip.

[0014] Preferably, the welding assembly includes: A robotic arm is mounted on the outside of the suspension. A welding torch is mounted at the working end of the robotic arm. The pressure stabilizing blocks are symmetrically arranged on both sides of the welding gun, and the pressure plate above the notch on the side of the pressure stabilizing blocks that are close to each other has a notch. One set of the clamping components further includes: The support arm is fixedly mounted on one side of the fixed plate; An electric push rod D is mounted on the support arm, and the movable end of the electric push rod D is connected to the pressure stabilizing block. An infrared thermometer is installed on the outside of the welding torch; A line laser scanner is positioned on the side of the welding torch near the long light strip.

[0015] Preferably, the LED strip storage box of the LED strip supply assembly can slide horizontally; the LED strip supply assembly further includes: The lifting plate is vertically and slidably connected to the light strip storage box, and the lifting plate can rise or fall. This welding apparatus also includes: A positioning component is used to position the feeding drum. The positioning component includes: A positioning rod is vertically slidably mounted on the outside of the side plate, and the positioning rod is raised and lowered in conjunction with the light strip storage box; A tapered positioning head is disposed at the upper end of the positioning rod; The feeding assembly also includes: A connecting plate is fixedly installed at the end of the feeding drum, and all connecting plates are rotatably connected to the side plate; Two positioning blocks C are symmetrically fixed on the outside of one of the connecting discs; each of the two positioning blocks C has a conical hole on its inner side, and the axis of the conical hole is perpendicular to the axis of the feeding drum; the conical positioning head corresponds to the conical hole.

[0016] Preferably, a horizontal groove is formed on the side plate. The light strip supply assembly also includes: The wedge-shaped block is linked to the LED strip storage box and can move synchronously with the LED strip storage box. The positioning component also includes: A roller is rotatably mounted at the lower end of the positioning rod, and the roller is located on the inclined surface of the wedge block; Pressure sensor B is disposed between the positioning rod and the roller; A conical positioning sleeve is disposed on the outside of the positioning rod, and two conical positioning sleeves are symmetrically arranged on the top and bottom; The support components also include: Positioning block A is fixedly connected to the side plate and is located on the upper side of the conical positioning sleeve; Positioning block B is fixedly connected to the side plate and is located on the lower side of the conical positioning sleeve.

[0017] Preferably, the ventilator and the feeding drum are rotatably connected; the feeding assembly further includes: A rotating shaft is coaxially and fixedly connected to the ventilator; the rotating shaft is rotatably disposed inside the connecting plate. The lever is fixedly mounted on the outside of the rotating shaft; The gear is fixedly mounted at the end of the rotating shaft; Two fixing pins are symmetrically fixedly provided on the inner side of the connecting plate; The rotating block is rotatably connected to the fixed pin; A stop block is fixedly installed on the end face of the connecting plate and corresponds to the rotating block. Torsion spring A is disposed between the fixed pin and the rotating block; A vertical plate is fixedly installed on the outside of the wedge-shaped block; The toothed plate is fixedly mounted on the upper part of the vertical plate and meshes with the gear.

[0018] Compared with existing technologies, this solution has the following advantages: After setting two correction components to position the short and long light strips in the width direction, two clamping components are used to flatten the welding ends of the short and long light strips. On this basis, the welding gap is adjusted by moving the docking plate to bring the long light strip closer to the short light strip, so as to ensure the welding accuracy of the short and long light strips. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 This is a top view of the structure of an embodiment of the present invention; Figure 3 This is an exploded view of the assembly structure of the correction component and the clamping plate according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the back of the side panel in an embodiment of the present invention; Figure 5 This is a schematic diagram of the mating structure between the positioning rod and the side plate in an embodiment of the present invention; Figure 6 This is a cross-sectional view of the side plate according to an embodiment of the present invention; Figure 7 This is an exploded view of the assembly structure of the docking component and the calibration component according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the clamping assembly according to an embodiment of the present invention; Figure 9 This is a three-dimensional structural diagram of the feeding rotary drum according to an embodiment of the present invention; Figure 10 This is an exploded structural diagram of the feeding rotary drum according to an embodiment of the present invention; Figure 11 This is a schematic cross-sectional view of the feeding rotary drum according to an embodiment of the present invention; Figure 12 This is a longitudinal sectional view of the feeding rotary drum according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of the ventilation cylinder according to an embodiment of the present invention; Figure 14 for Figure 1 Enlarged structural diagram at point A; Figure 15 for Figure 2 Enlarged structural diagram at point B; Figure 16 for Figure 6 Enlarged structural diagram at point C; Figure 17 for Figure 9 A magnified structural diagram at point D.

[0020] In the picture: 100mm short LED strip; 200mm long LED strip; 1. Support assembly; 10. Base; 11. Side plate; 12. Bracket; 13. Clamping plate; 14. Suspension; 15. Positioning block A; 16. Positioning block B; 17. Slide groove; 18. Slide rail; 19. Through groove; 110. Fixing seat; 2. Feeding assembly; 20. Feeding drum; 21. Adsorption plate; 22. Protrusion; 23. Connecting disc; 24. Positioning block C; 25. Conical hole; 26. Vent; 27. Flow guide; 28. Mounting box; 29. ​​Vent tube; 210. Suction hole; 211. Air pipe; 212. Outer plate; 213. Rotating shaft; 214. Pulley; 215. Fixing pin; 216. Rotating block; 217. Stop block; 218. Torsion spring A; 219. Gear; 220. Driven pulley; 221. Transmission belt; 222. Motor A; 3. Connecting assembly; 30. Connecting plate; 31. U-shaped box; 32. Notch; 33. Guide slope; 34. Rail; 35. Slide table; 36. Electric push rod A; 4. Calibration assembly; 41. Calibration plate; 42. Electric push rod B; 43. Slide rod; 44. Rangefinder; 5. Clamping assembly; 51. Pressure plate; 52. Lifting rod; 53. Torsion spring B; 54. Limiting post; 55. Fixing plate; 56. Electric push rod C; 57. Pressure sensor A; 58. Support arm; 59. Electric push rod D; 6. Welding assembly; 61. Robotic arm; 62. Mounting block; 63. Welding torch; 64. Voltage stabilizer; 65. Notch; 66. Infrared thermometer; 67. Line laser scanner; 7. LED strip supply assembly; 70. LED strip storage box; 71. Lifting plate; 72. Cylinder; 73. Screw sleeve; 74. Ball screw; 75. Motor B; 76. Connector; 77. Wedge block; 78. Vertical plate; 79. Toothed plate; 8. Positioning assembly; 80. Positioning rod; 81. Conical positioning head; 82. Conical positioning sleeve; 83. Roller; 84. Pressure sensor B. Detailed Implementation

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

[0022] Please see Figures 1-17 This application provides the following technical solutions: A flexible LED strip welding device based on multi-sensor fusion includes a support component 1, a feeding component 2, a docking component 3, a correction component 4, a clamping component 5, a welding component 6, and an LED strip supply component 7.

[0023] The support assembly 1 includes a base 10, with two vertically extending side plates 11 fixedly mounted on the upper part of the base 10. A bracket 12 is fixedly mounted on the upper part of the side plates 11, with the top of the bracket 12 extending above the side plates 11. Two parallel clamping plates 13 are fixedly mounted on the top of the bracket 12, with a gap between the two clamping plates 13. A suspension 14 is fixedly connected to one horizontal side of the bracket 12.

[0024] The feeding assembly 2 includes a cylindrical feeding drum 20, which is rotatably connected to a side plate 11. Two radially outer sides of the feeding drum 20 are centrally symmetrically provided with adsorption plates 21, which are used to adsorb the short light strip 100 and rotate and convey it.

[0025] The docking assembly 3 is used to support the long light strip 200 welded from the short light strip 100, and to drive the long light strip 200 to slide and align with the welded ends of the short light strip 100. The docking assembly 3 includes a docking plate 30, which is disposed on the suspension 14 and slidably connected to the suspension 14. The long light strip 200 can be placed on the docking plate 30.

[0026] The correction component 4 is located on the outside of the adsorption plate 21 and the docking plate 30. The correction component 4 is used to correct the position of the welding ends of the short light strip 100 and the long light strip 200.

[0027] The clamping components 5 are respectively disposed on the outer side of the clamping plate 13 and the mating plate 30. The clamping components 5 are used to apply downward pressure to the welding ends of the short light strip 100 and the long light strip 200 to clamp the welding ends of the two.

[0028] The welding assembly 6 is located above the welding positions of the short light strip 100 and the long light strip 200, and is used to complete the welding operation of the short light strip 100 and the long light strip 200.

[0029] The LED strip supply assembly 7 is used to supply short LED strips 100. The assembly includes an LED strip storage box 70 disposed between the side plates 17. The storage box 70 has a placement position for the short LED strips 100 and can slide horizontally. By sliding the storage box 70 horizontally, when feeding is required, the storage box 70 moves below the feeding drum 20. The feeding drum 20 then rotates, and its outer suction plate 21 rotates with it. The feeding drum 20, located directly below, can pick up the short LED strips 100 to be welded from within the storage box 70. This design uses a screw and sleeve combination to drive the storage box 70. A screw sleeve 73 is fixedly installed on the outside of the storage box 70. A through groove 19 is provided on the side plate 11 corresponding to the screw sleeve 73, and the screw sleeve 73 and the through groove 19 are slidably connected. A ball screw 74 is rotatably mounted on the outer side of the side plate 11, and a screw sleeve 73 passes through the through groove 17 and is threadedly connected to the ball screw 74. In addition, a motor B75 for driving the ball screw 74 to rotate is also fixedly mounted on the outer side of the side plate 11.

[0030] This design uses a base 10 as the basic load-bearing structure of the device, providing stable installation support for each component. The base 10 and the two side plates 11 can be fixedly connected by welding or bolts to ensure the stability of the feeding drum 20 during rotation. The bracket 12 is located on the upper outer side of the side plates 11, not only supporting the clamping plate 13 and the suspension 14, but also forming a lateral frame of the device together with the side plates 11, enhancing the rigidity of the overall structure. The feeding drum 20 is rotatably mounted between the side plates 11 via bearings. The suction plate 21, which is symmetrically positioned on its outer side, uses vacuum adsorption to stably adsorb the short light strip 100, and the rotation of the feeding drum 20 transports the short light strip 100 upwards. Before adsorption by the suction plate 21, the motor B75 and the ball screw 74 drive the screw sleeve 73 to slide along the through groove 19, accurately transporting the short light strip 100 to be welded inside the light strip storage box 70 to the lower suction plate 21 for continuous feeding.

[0031] The docking plate 30 of the docking component 3 can slide horizontally. When the docking plate 30 carries the long light strip 200, it can drive the welding end of the long light strip 200 and the short light strip 100 to achieve precise alignment through horizontal sliding, so as to ensure accurate welding position.

[0032] Furthermore, to ensure the alignment of the short and long light strips, two sets of alignment components 4 are used to position the short light strip 100 and the long light strip 200 in the width direction before alignment. Then, the clamping component 5 applies stable downward pressure to the welding ends of the short light strip 100 and the long light strip 200 to prevent unevenness (warping, bending) at the welding ends of the short light strip 100 and the long light strip 200 from affecting the alignment accuracy. The various components work collaboratively through the control system, making the entire welding process automated and intelligent, effectively improving the welding quality and production efficiency of the flexible light strips.

[0033] Based on the above implementation scheme, in order to achieve the positioning action of the short light strip 100 and the long light strip 200 in the width direction, the docking assembly 3 also includes a U-shaped box 31. The U-shaped box 31 is located on the upper side of the suspension 14, and a track 34 is fixedly installed at the bottom of the U-shaped box 31. A slide table 35 is fixedly installed on the upper side of the suspension 14. The U-shaped box 31 is horizontally slidably connected to the slide table 35 through the slide track 34. An electric push rod A36 for driving the U-shaped box 31 to slide is provided on the outer side of the slide table 35. The docking plate 30 is located inside the U-shaped box 31.

[0034] Two sets of calibration components 4 are provided, one set corresponding to the U-shaped box 31 and the other set corresponding to the clamping plate 13. Each calibration component 4 includes two symmetrically arranged calibration plates 41. Electric push rods B42 for driving the calibration plates 41 are fixedly installed on the outer sides of both the clamping plate 13 and the U-shaped box 31. Through holes are formed on the plates of the clamping plate 13 and the U-shaped box 31. A sliding rod 43 is provided on one side of the calibration plate 41 corresponding to the through hole. The calibration plates 41 in the two calibration components 4 are slidably connected to the clamping plate 13 and the U-shaped box 31 respectively via the sliding rods 43. A rangefinder 44 is provided on the side of the calibration plates 41 that are close to each other.

[0035] By setting a sliding connection structure between the U-shaped box 31 and the suspension 14, when the electric push rod A36 is activated, the U-shaped box 31 can drive the long light strip 200 on the inner docking plate 30 to move closer to or away from the short light strip 100 positioned on the top of the adsorption plate 21, thereby achieving alignment. When the correction component 4 positions the short light strip 100 and the long light strip 200, the electric push rod B42 drives the correction plate 41 to move. With the cooperation of the rangefinder 44 and the electric push rod B42, the correction plate 41 can accurately fit the sides of the short light strip 100 and the long light strip 200, achieving adaptive positioning in the width direction and effectively avoiding welding misalignment problems caused by light strip width deviation.

[0036] Based on the above implementation scheme, to prevent interference when the docking plate 30 moves the long light strip 200 closer to the short light strip 100 on the top of the adsorption plate 21 for alignment, and to ensure good stability when the docking plate 30 and the adsorption plate 21 are docked, a protrusion 22 is fixedly provided at one end of the adsorption plate 21 near the docking plate 30, and the protrusion 22 is located below the welding end of the short light strip 100. A recess 32 is provided at one end of the docking plate 30 near the adsorption plate 21 corresponding to the protrusion 22, and the recess 32 is located below the welding end of the long light strip 200. A guide slope 33 is provided on the top side of the docking plate 30 near the short light strip 100.

[0037] When aligning the long and short LED strips, the U-shaped box 31 moves the docking plate 30 towards the adsorption plate 21, and the protrusion 22 gradually embeds into the inner side of the recess 32, forming a nested mating structure. This structure ensures the positioning of the adsorption plate 21 and the docking plate 30 for a longer service life, extending the time the equipment remains in good working order. By setting the guide ramp 33, the welding end of the short LED strip 100 can be guided to the upper side of the docking plate 30 during docking. Furthermore, the electric push rod A36 automatically adjusts the drive speed and progress, allowing the docking plate 30 to slowly and uniformly complete the final alignment of the long LED strip 200, further ensuring precise vertical alignment of the welding ends of the long LED strip 200 and the short LED strip 100, providing a stable physical basis for subsequent welding processes.

[0038] Based on the above implementation scheme, during the alignment process, to prevent unevenness (warping, bending) at the welding ends of the short light strip 100 and the long light strip 200 from affecting the alignment accuracy, a clamping component 5 is respectively installed above the welding stations of the short light strip 100 and the long light strip 200. Both clamping components 5 include a pressure plate 51, and the pressure plates 51 of the two clamping components 5 correspond to the protrusion 22 and the recess 32, respectively.

[0039] Each clamping assembly 5 also includes a lifting rod 52. The upper end of the pressure plate 51 is rotatably connected to the lifting rod 52, and a torsion spring B53 is provided at the connection between the lifting rod 52 and the pressure plate 51. The torsion spring B53 applies a downward rotational force to the pressure plate 51. A support structure is provided corresponding to the lifting rod 52, which includes two limiting posts 54 and a fixing plate 55 located at the top of the limiting posts 54. An electric push rod C56 is fixedly connected to the upper side of the fixing plate 55. The movable end of the electric push rod C56 passes through the fixing plate 55 and is fixedly connected to the lifting rod 52. The lifting rod 52 and the limiting posts 54 are slidably connected. The limiting post of one clamping assembly 5 is fixedly set on the clamping plate 13, and the limiting post of the other clamping assembly 5 is fixedly set on the upper part of the U-shaped box 31. A pressure sensor A57 is provided between the drive end of the electric push rod C56 and the lifting rod 52. The pressure plate 51 is made of a smooth, elastic material. The width of the pressure plate 51 above the protrusion 22 is smaller than the width of the recess 32, while the width of the pressure plate 51 above the recess 32 is larger than the width of the recess 32 and smaller than the width of the long light strip 200.

[0040] When the clamping assembly 5 flattens the ends of the short LED strip 100 and the long LED strip 200, the electric push rod C56 drives the lifting rod 52 to lower the pressure plate 51. After the pressure plate 51 contacts the upper side of the welding end of the short LED strip 100, the torsion spring B53 deforms due to torque, and the pressure plate 51 rotates upward. During this process, the lower end of the pressure plate 51 is in contact with the welding end surfaces of the short LED strip 100 and the long LED strip 200. Because the pressure plate 51 is made of a smooth elastic material, it can avoid scratching the surface of the LED strip during contact and can adapt to the micro-deformation of the welding end through its own deformation, ensuring uniform pressure distribution. The pressure plate 51 located above the protrusion 22 has a width smaller than the recess 32, so it can act precisely on the welding area of ​​the short LED strip 100, preventing the flattening range from being too large and affecting the cooperation between the recess 32 and the protrusion 22 (e.g., if the short LED strips 100 located on both sides of the protrusion 22 are over-pressed, the protrusion 22 will have difficulty entering the inside of the recess 32). The pressure plate 51, located at the top of the notch 32, is wider than the notch 32 but narrower than the width of the long LED strip 200. This allows for sufficient welding space along the edges of the long LED strip 200 while simultaneously pressing down on its welding end. The pressure sensor A57 detects pressure during the operation of the electric push rod C56, preventing damage to the LED strip due to overpressure. The initial height of the lifting rod 52 can be adjusted according to the thickness of different LED strip specifications, further improving the adaptability and stability of the flattening operation.

[0041] After the short light strip 100 and the long light strip 200 are positioned in the width direction by the correction component 4, pressure is applied to the welding ends of the short light strip 100 and the long light strip 200 by the pressure plate 51 of the pressing component 5, which flattens the welding ends of the short and long light strips.

[0042] Based on the above implementation scheme, a mounting base 110 for mounting the welding assembly 6 is also fixedly installed on the outer side of the suspension 14. The mounting base 110 on the outer side of the suspension 14 provides a stable mounting foundation for the welding assembly 6, so that the entire positioning mechanism and the welding assembly form a collaborative working system, improving the stability and accuracy of the welding process.

[0043] The welding assembly 6 includes a robotic arm 61 fixedly mounted on the outside of the suspension 14. The actuator of the robotic arm 61 has a mounting block 62, and a welding torch 63 is fixedly mounted on the bottom of the mounting block 62. An image acquisition sensor is configured on the side of the welding torch 63. Symmetrically arranged on both sides of the welding torch 63 are pressure-stabilizing blocks 64 for pressing the edges of the long light strip 200. A notch 65 is provided on the side of the pressure-stabilizing blocks 64 that is close to each other, corresponding to the pressure plate 51 at the top of the recess 32.

[0044] An arm 58 is fixedly mounted on the outer side of the fixing plate 55 in the clamping assembly 5, and an electric push rod D59 for driving the voltage stabilizing block 64 to move up and down is fixedly mounted at the bottom of the arm 58. An infrared thermometer 66 and a line laser scanner 67 are also fixedly mounted on the bottom of the mounting block 62 on both sides of the welding torch 63. The line laser scanner 67 is located on the side of the welding torch 63 near the long light strip 200.

[0045] After the short light strip 100 and the long light strip 200 are aligned, the electric push rod D59 drives the voltage stabilizing block 64 to move downwards and press it against the edge of the short light strip 100 and the long light strip 200. At this time, the pressure plate 51 located above the notch 32 is positioned between the notches 65. Then, the electric push rod C56 drives the pressure plate 51 to reset, moving the pressure plate 51 away from the welding area to make way for subsequent welding work. Under the drive of the robotic arm 61, the welding gun 63 performs welding processing on the welding ends of the short light strip 100 and the long light strip 200. After welding, the temperature of the welding position is detected by the infrared thermometer 66, and the weld pool is cooled to a certain degree before the material is collected.

[0046] During the material collection process, the long LED strip 200 drives the welded short LED strip 100 to move on the upper side of the mating plate 30. At this time, the pressure plate 51 on the inner side of the drive clamping plate 13 applies pressure to the welded short LED strip 100 to ensure that it is in a flattened state under the material collection action of the long LED strip 200.

[0047] Based on this, when the welding position passes under the line laser scanner 67, the line laser scanner 67 scans the welding position and uses three-dimensional topography analysis to perform quality inspection on the welding position. The welding torch 63 integrates a vision system, which can acquire high-definition images of the welding position. Through image processing algorithms, it can quickly and accurately identify the position and shape of the welding point. For example, in electronic chip welding, it can locate the micron-level pins on the chip in a short time and guide the laser to accurately act on the welding point without repeated manual adjustments and positioning, which greatly saves preparation time. The robotic arm and the welding torch with the vision system can use existing technologies, which will not be elaborated here.

[0048] Based on the above implementation scheme, in order to ensure the precise positioning of the adsorption plate 21 relative to the docking plate 30, see [reference needed]. Figure 5 The solution also includes a positioning component 8, which includes a positioning rod 80. The positioning rod 80 is vertically slidably disposed on the outside of the side plate 11 along the axial direction. The positioning rod 80 is linked with the light strip storage box 70 and is driven by the light strip storage box 70 to move up and down.

[0049] Both ends of the feeding drum 20 are coaxially fixed with connecting discs 23, which are rotatably connected to the side plates 11. Two positioning blocks C24 are symmetrically fixed on the outer side of one of the connecting discs 23. Tapered holes 25 are opened on the opposite end faces of the two positioning blocks C24, and the axial direction of the tapered holes 25 is perpendicular to the axial direction of the adsorption plate 21. A tapered positioning head 81 is fixedly installed at the top of the positioning rod 80, and the tapered positioning head 81 is correspondingly set with the tapered hole 25. The positioning rod 80 is used to pin-connect the positioning blocks C24, thereby achieving the effect of horizontal positioning of the adsorption plate 21.

[0050] Another connecting plate 23 is coaxially fixedly provided with a driven pulley 220 on its outer side. The driven pulley 220 is linked to the drive end of the motor A222 through the transmission belt 221. The motor A222 is fixedly provided on the outer side of the side plate 11 and is used to drive the feeding drum 20 to rotate.

[0051] When the LED strip storage box 70 moves directly below the adsorption plate 21, the positioning rod 80 rises vertically along the outer side of the side plate 11 under the drive of the LED strip storage box 70. At this time, the conical positioning head 81 at the top of the positioning rod 80 gradually inserts into the conical hole 25. The horizontal positioning of the adsorption plate 21 is achieved through the cooperation between the conical positioning head 81 and the conical hole 25. At the same time, the motor A222 can drive the driven pulley 220 to rotate through the transmission belt 221, thereby driving the connecting plate 23 and the adsorption plate 21 to rotate around the axial direction, realizing the continuous feeding of the adsorption plate 21, and ensuring that the relative positional accuracy between the adsorption plate 21 and the welding target meets the requirements during the welding process.

[0052] Based on the above implementation scheme, in order to prevent the positioning rod 80 from rising too low and causing the adsorption plate 21 to be positioned inaccurately, a lifting plate 71 and a cylinder 72 are provided inside the light strip storage box 70. The cylinder 72 is fixedly installed inside the light strip storage box 70, and the lifting plate 71 and the movable end of the cylinder 72 are connected. The cylinder 72 drives the lifting plate 71 to perform the lifting action.

[0053] A groove 17 is provided on the side plate 11 corresponding to the connector 76. A horizontal slide rail 18 is provided on the outer side of the side plate 11, located below the groove 17. A wedge block 77 is fixedly provided on the outer side of the light strip storage box 70 through the connector 76, and the wedge block 77 and the slide rail 18 are slidably connected. A roller 83 is provided at the bottom of the positioning rod 80, and a pressure sensor B84 is provided between the positioning rod 80 and the roller 83. The roller 83 is located on the inclined surface of the wedge block 77. A conical positioning sleeve 82 is also fixedly provided on the outer side of the positioning rod 80. Two conical positioning sleeves 82 are symmetrically arranged vertically. Positioning blocks A15 and B16 are fixedly provided on the outer side of the side plate 11 corresponding to the two conical positioning sleeves 82, respectively. Positioning holes are provided on the inner side of the positioning blocks A15 and B16 corresponding to the conical positioning sleeves 82.

[0054] When the LED strip storage box 70 moves directly below the adsorption plate 21, the wedge block 77 moves horizontally to below the roller 83. The inclined surface of the wedge block 77 pushes the positioning rod 80 above the roller 83 upwards, causing the positioning rod 80 to push the conical positioning head 81 for pin-fitting positioning. Simultaneously, the positioning rod 80 drives the upper conical positioning sleeve 82 to engage with the inner side of the positioning block A15. Since the distance between positioning block A15 and positioning block C24 is constant and they are coaxial, when the conical positioning sleeve 82 engages with positioning block A15, the conical positioning head 81 simultaneously engages with positioning block C24. The pressure sensor B84 detects the pressure exerted by the roller 83 on the positioning rod 80. If the pressure is insufficient, it indicates that the conical positioning sleeve 82 is not engaging with positioning block A15. In this case, the LED strip storage box 70 can be moved slightly further, causing the wedge block 77 to push the roller 83 to compensate for the upward thrust. After the wedge block 77 disengages from the bottom of the roller 83, the positioning rod 80 moves downward under its own weight, and the conical positioning head 81 separates from the positioning block C24. When the conical positioning sleeve 82 located below falls into the inner side of the positioning block B16, the positioning rod 80 stops moving and has a positioning function on the roller 83 at the bottom of the positioning rod 80, so that the wedge block 77 is in the same designated position every time it pushes the roller 83, preventing excessive wear between the roller 83 and the wedge block 77 in the axial direction and reducing the loss of the upward pushing force of the roller 83 on the positioning rod 80.

[0055] Based on the above implementation scheme, in order to enable the upper and lower adsorption plates 21 to alternately adsorb and feed the short light strip 100, see [reference needed]. Figure 11In this design, the outer side of the feeding drum 20 is symmetrically provided with vents 26 corresponding to the adsorption plates 21 on both sides. A guide hood 27 is symmetrically fixedly installed on the outer side of the feeding drum 20 corresponding to the vents 26. The guide hood 27 is a trumpet-shaped hood, and a mounting box 28 for supporting the adsorption plates 21 is fixedly installed at the outer end of the guide hood 27. A venting cylinder 29 is rotatably and sealed inside the feeding drum 20. An air intake hole 210 is opened at the bottom of the venting cylinder 29. When the venting hole 26 rotates to the position of the air intake hole 210, an airflow passage can be formed. An air pipe 211 is rotatably installed at one end of the venting cylinder 29, and the other end of the air pipe 211 extends to the outside of the feeding drum 20 and is fixedly connected to the side plate 11 through the outer plate 212. The air pipe 211 is rotatably installed inside the connecting plate 23 and the driven pulley 220 for connecting to a negative pressure device.

[0056] A rotating shaft 213 is coaxially fixed at the other end of the ventilator 29. The rotating shaft 213 is rotatably mounted inside the connecting plate 23. A lever 214 is fixedly mounted on the outside of the rotating shaft 213, and a gear 219 is provided at the end of the rotating shaft 213. Fixing pins 215 are symmetrically fixed inside the connecting plate 23. Rotating blocks 216 are rotatably mounted on the outside of each fixing pin 215. The two rotating blocks 216 are centrally symmetrical. A stop block 217 is fixedly mounted on the end face of the connecting plate 23 corresponding to the rotating block 216. The stop block 217 is located on the side of the rotating block 216 away from the lever 214. A torsion spring A218 is provided on the outside of the fixing pin 215 between the connecting plate 23 and the rotating block 216 to drive the rotating block 216 to press against the stop block 217.

[0057] A vertical plate 78 is fixedly connected to the outside of the wedge block 77. A toothed plate 79 is fixedly installed on the top of the vertical plate 78. The toothed plate 79 is located below the gear 219 and meshes with the gear 219. The gear 219 is connected to the rotating shaft 213 through a one-way bearing.

[0058] When the LED strip storage box 70 is located directly below the bottom adsorption plate 21, the cylinder 72 drives the lifting plate 71 to move upward a certain distance, thereby pushing the short LED strip 100 inside the LED strip storage box 70 upward and pressing it against the bottom of the adsorption plate 21, so that the adsorption plate 21 below adsorbs the short LED strip 100; at this time, the air intake 210 is always aligned and connected with the air vent 26. When the LED strip storage box 70 moves away from the bottom of the adsorption plate 21 to make way for the rotation of the adsorption plate 21, the LED strip storage box 70 drives the toothed plate 79 to move horizontally under the gear 219 via the vertical plate 78. The gear 219 rotates independently via a one-way bearing, ensuring that the suction port 210 is always aligned and connected with the vent 26. Then, by driving the feeding drum 20 to rotate, the bottom adsorption plate 21 adsorbs the short light strip 100 and rotates to the top to prepare for docking. During the rotation, the rotating block 216 on the outside of the connecting plate 23 drives the rotating shaft 213 to rotate synchronously by pushing the lever 214, which in turn drives the vent 29 to rotate synchronously with the feeding drum 20. This ensures that the feeding drum 20, while driving the adsorption plate 21 to rotate, is always connected to the negative pressure equipment through the vent 26 and the suction port 210.

[0059] When the LED strip storage box 70 moves to the bottom of the next adsorption plate 21 to prepare for feeding, the vertical plate 78 drives the toothed plate 79 to approach the bottom of the gear 219 and mesh with it. The gear 219 drives the air cylinder 29 to rotate inside the feeding drum 20 through the one-way bearing. This causes the air intake 210 to be misaligned with the upper air intake 26 and rotated to align with the lower air intake 26, thus achieving continuous adsorption feeding. At this time, the vent 29 drives the lever 214 on the outside of the rotating shaft 213 to move closer to the outside of the rotating block 216 below. The rotating block 216 is pushed by the side of the rotating block 216 that is close to the stop block 217, so that the rotating block 216 overcomes the torque of the torsion spring A218 and moves away from the stop block 217. After the lever 214 passes the rotating block 216, the vent 29 drives the suction hole 210 to align with the vent 26 below again. At this time, the torsion spring A218 drives the rotating block 216 to press against the outside of the stop block 217 again, so that when the rotating block 216 rotates later, it can push the lever 214 in front to rotate synchronously, so as to realize the synchronous rotation of the feeding drum 20 and the vent 29.

[0060] This solution also provides a welding method for a flexible LED strip welding device based on multi-sensor fusion, including the following steps: S1. The short LED strips 100 to be welded are stacked inside the LED strip storage box 70 for storage. At this time, the lifting plate 71 inside the LED strip storage box 70 for supporting the short LED strips 100 is at the bottom, and the LED strip storage box 70 is located on one side of the adsorption plate 21 below, which serves as the loading position of the LED strip storage box 70. S2. By driving the loading drum 20 to rotate, the outer adsorption plate 21 of the drum is rotated to the bottom. Then, the LED strip storage box 70 is driven to move from the loading position to the unloading position, that is, directly below the adsorption plate 21. At this time, the LED strip storage box 70 drives the positioning rod 80 on the outer side of the side plate 11 to move upward, so that the conical positioning head 81 at the top of the positioning rod 80 is inserted into the inner side of the positioning block C24 on the outer side of the connecting plate 23, and at the same time, the upper and lower adsorption plates 21 are positioned. S3. At this time, the vent 26 on the side wall of the feeding drum 20 is aligned and connected with the suction hole 210 at the bottom of the vent 29. The external negative pressure device generates negative pressure inside the vent 29. When the lifting plate 71 is driven upward by external force to move a certain distance, it pushes the short light strip 100 inside the light strip storage box 70 upward and presses it against the bottom of the adsorption plate 21. The short light strip 100 is adsorbed by the adsorption plate 21 below. S4. The light strip storage box 70 is driven back to the loading position, that is, away from the bottom of the adsorption plate 21, to make way for the rotation of the adsorption plate 21. At this time, the light strip storage box 70 drives the toothed plate 79 to move at the bottom of the gear 219 through the vertical plate 78. The gear 219 rotates independently through the one-way bearing, so that the air intake 210 is always aligned and connected with the air vent 26. Then, the loading drum 20 is driven to rotate, so that the bottom adsorption plate 21 adsorbs the short light strip 100 and rotates to the top to prepare for docking. During the rotation, the rotating block 216 on the outside of the connecting plate 23 drives the rotating shaft 213 to rotate synchronously through the push block 214, which in turn drives the air vent 29 to rotate synchronously with the loading drum 20. During the rotation of the loading drum 20 and the adsorption plate 21, the air vent 26 and the air intake 210 are always connected to the negative pressure equipment. S5. The drive light strip storage box 70 moves to the bottom of the next adsorption plate 21 to prepare for feeding. At the same time, the vertical plate 78 drives the toothed plate 79 to approach the bottom of the gear 219 and mesh with it. The gear 219 drives the air cylinder 29 to rotate inside the feeding drum 20 through the one-way bearing. This causes the air inlet 210 to be misaligned with the upper air inlet 26 and rotated to align with the lower air inlet 26, thus achieving continuous adsorption feeding. At this time, the short light strip 100 at the top of the adsorption plate 21 is not constrained by external forces, and the light strip storage box 70 drives the positioning rod 80 again to position the adsorption plate 21, laying the foundation for subsequent positioning and alignment work. S6. By controlling the operation of the electric push rod B42 on the outside of the clamping plate 13 and the U-shaped box 31, the electric push rod B42 simultaneously pushes the correction plates 41 closer to each other. The positioning distance is detected by the rangefinder 44 on the outside of the correction plates 41, so that the distance between the two correction plates 41 is adapted to the width of the short light strip 100 and the long light strip 200, realizing the positioning action on the width of the short light strip 100 and the long light strip 200. Then, by controlling the operation of the electric push rod C56, it drives the lifting rod 52 to move downward along the limit post 54, and the two lifting rods 52 bring... The lower ends of the moving pressure plates 51 rest on the tops of the short light strip 100 and the long light strip 200 respectively. As the lifting rod 52 continues to move downward, the tilt angle of the two pressure plates 51 increases until the two pressure plates 51 press against the tops of the protrusion 22 and the recess 32 respectively. At this time, one of the pressure plates 51 presses against the end of the short light strip 100 located on the top of the protrusion 22, and the other pressure plate 51 presses against the end of the long light strip 200 located on the top of the recess 32, so as to prevent unevenness of the welding ends of the short light strip 100 and the long light strip 200 from affecting the alignment accuracy. S7. By driving the U-shaped box 31 to slide along the length of the adsorption plate 21 on the top of the suspension 14, the U-shaped box 31 drives the docking plate 30 and the long light strip 200 on its top to move closer to the short light strip 100. At this time, the welding gun 63 is located above the welding ends of the short light strip 100 and the long light strip 200. The alignment of the short light strip 100 and the long light strip 200 can be identified based on the vision system. When the docking plate 30 drives the long light strip 200 to move closer to the short light strip 100, the notch 32 gradually moves to the outside of the protrusion 22. This ensures that the alignment of the short light strip 100 and the long light strip 200 is achieved before the docking plate 30 contacts the feeding drum 20, preventing the two from interfering with each other. S8. After alignment, the electric push rod D59 drives the pressure stabilizing block 64 to move downwards and press it against the edges of the short light strip 100 and the long light strip 200. At this time, the two sides of the notch 32 are located on both sides of the protrusion 22 and support the bottom of the short light strip 100, so that the pressure stabilizing block 64 presses the short light strip 100 and the long light strip 200 against the protrusion 22 and the top of the mating plate 30. At this time, the pressure plate 51 located at the top of the notch 32 is located between the notches 65. Then, the electric push rod C56 drives the pressure plate 51 to reset, so that the pressure plate 51 is away from the welding point, making way for the subsequent welding work. S9. A vision system based on welding torch 63, driven by robotic arm 61, enables welding torch 63 to perform welding processing on the welding ends of short light strip 100 and long light strip 200. After welding, the temperature of the welding position is detected by infrared thermometer 66, and the welding pool is cooled to a certain degree before the material is collected. S10. The long LED strip 200 formed after welding is collected and unloaded by an external material collection device. During the material collection process, the long LED strip 200 moves on the top of the docking plate 30 and moves the short LED strip 100 after welding together. At this time, the pressure plate 51 on the inner side of the drive clamping plate 13 applies pressure to the short LED strip 100 after welding and is flattened under the material collection action of the long LED strip 200. On this basis, when the welding position passes under the line laser scanner 67, the welding position is scanned by the line laser scanner 67 and the welding position is quality inspected by three-dimensional morphology analysis.

[0061] It is worth noting that the above welding method has the following advantages: Firstly, by setting two correction components 4 to position the short light strip 100 and the long light strip 200 in the width direction, and then by using two clamping components 5 to flatten the welding ends of the short light strip 100 and the long light strip 200, the welding gap is adjusted by moving the translating docking plate 30 to bring the long light strip 200 closer to the short light strip 100, so as to ensure the welding accuracy of the short light strip 100 and the long light strip 200.

[0062] Secondly, by setting up an adsorption plate 21 structure with a centrally symmetrical distribution on the outer side of the feeding drum 20, and cooperating with the horizontal sliding of the light strip storage box 70, continuous feeding of short light strips 100 can be achieved. At the same time, the gear 219 drives the ventilation cylinder 29 to rotate through the one-way bearing, ensuring that the air intake 210 is always aligned and connected with the lower ventilation port 26, thus ensuring feeding efficiency.

[0063] Thirdly, the pressing action of the pressure plate 51 on the welding ends of the short light strip 100 and the long light strip 200 can effectively eliminate the unevenness of the welding ends and prevent alignment deviation caused by warping. By improving the alignment accuracy, the welding accuracy is further guaranteed.

[0064] Fourthly, the alignment of the short light strip 100 and the long light strip 200 is identified in real time by the vision system of the welding torch 63. In conjunction with the U-shaped box 31, the butt plate 30 is slidably adjusted to adjust the welding gap, thereby realizing adaptive adjustment of the welding process and improving the stability of welding quality.

[0065] Fifthly, it adopts a multi-station rotary feeding structure. By driving the feeding drum 20 to rotate, the adsorption plate 21 can be switched cyclically. Combined with the reciprocating movement of the light strip storage box 70 and the negative pressure adsorption function of the ventilation cylinder 29, the feeding operation of the short light strip 100 can be completed continuously, which effectively improves the feeding efficiency and meets the needs of batch welding production.

[0066] Advantage six: During the material collection process, the short LED strip 100 after welding is pressed by the pressure plate 51 and flattened by the material collection action of the long LED strip 200. In conjunction with the line laser scanner 67, the welding position is scanned in three dimensions, realizing online detection of welding quality and improving the product qualification rate.

[0067] Advantage 7: The conical positioning head 81 at the top of the positioning rod 80 is inserted into the inner side of the positioning block C24 on the outside of the connecting plate 23, so as to achieve precise positioning of the upper and lower adsorption plates 21, laying the foundation for subsequent welding alignment work and reducing positioning errors.

[0068] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0069] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., 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, an electrical connection, or a communication 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 application according to the specific circumstances.

[0070] In this application and its embodiments, unless otherwise expressly 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 being 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 being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0071] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0072] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0073] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A flexible light strip welding device based on multi-sensor fusion, characterized by, include: The support components are rigid support structures that can provide stable support force. The feeding assembly is located on the upper part of the support assembly. The feeding assembly includes a feeding drum that is rotatably connected to the support assembly. Adsorption plates are symmetrically arranged on both sides of the feeding drum. The adsorption plates are connected to the external negative pressure equipment through pipelines. The adsorption plates can adsorb the short light strips to be welded. A docking assembly is disposed on the upper part of the support assembly. The docking assembly includes a docking plate for supporting the long light strip to be welded. The docking plate is located on the upper side of the feeding assembly and can slide in the horizontal direction. A clamping assembly is disposed above the adjacent part of the feeding assembly and the docking assembly. Each clamping assembly includes a pressure plate that can move in the vertical direction. The pressure plate can apply downward pressure to the end of the short or long light strip to be welded. A welding assembly is disposed on one side adjacent to the feeding assembly and the docking assembly. The welding assembly is used to weld short light strips and long light strips. A light strip supply assembly is disposed inside the support assembly. The light strip supply assembly includes a light strip storage box for holding short light strips, and the light strip storage box can supply short light strips to the feeding assembly.

2. The flexible light strip welding apparatus based on multi-sensor fusion of claim 1, wherein, The support components include: The base is located at the bottom of the support components; Two side plates are vertically arranged on the base, with a gap between them. The light strip supply assembly is located between the two side plates. The feeding drum is rotatably connected to the side plates. A bracket is disposed on the upper part of the side plate and extends upward toward the side plate; Two clamping plates are symmetrically arranged on the upper part of the bracket, with a gap between the two clamping plates. The gap between the two clamping plates is greater than the width of the adsorption plate and the docking plate. The suspension is mounted on the horizontal side of the bracket, and the docking plate of the docking assembly is slidably connected to the suspension.

3. The flexible light strip welding apparatus based on multi-sensor fusion of claim 1, wherein, Also includes: The calibration components are provided in two sets, which are respectively located on the outside of the adsorption plate and the docking plate, and are used to calibrate the placement position of the short light strip and the long light strip.

4. The flexible light strip welding apparatus based on multi-sensor fusion of claim 3, wherein, The outer side of the feeding drum is symmetrically provided with air vents corresponding to the adsorption plate. The feeding assembly also includes Two guide hoods are symmetrically arranged on the outside of the feeding drum, and each guide hood is connected to one of the vents; The mounting box is fixedly installed at the end of the air guide hood away from the air inlet; the adsorption plate is connected to the air guide hood through the mounting box; the adsorption plate, mounting box, air guide hood and air inlet form a negative pressure adsorption airflow path; A ventilator is installed inside the feeding drum; the ventilator has an air intake hole on its body that can connect with the air inlet. An air pipe is installed at one end of the ventilation cylinder. The air pipe is fixedly connected to the side plate through the outer plate and is used to connect to external negative pressure equipment.

5. The flexible light strip welding apparatus based on multi-sensor fusion of claim 4, wherein, The feeding assembly also includes: A protrusion is fixedly installed at one end of the adsorption plate near the docking plate, and the protrusion is located on the lower side of the welding end of the short light strip to be welded; The feeding assembly also includes: A notch is formed at one end of the docking plate near the adsorption plate, and the notch corresponds to the protrusion; the notch is located on the lower side of the welding end of the long light strip; A guide ramp is positioned on the side of the docking plate near the adsorption plate.

6. The flexible LED strip welding device based on multi-sensor fusion as described in claim 5, characterized in that, The docking component also includes: The U-shaped box has a docking plate fixedly installed inside its body; the U-shaped box is located on the upper side of the suspension and is horizontally slidably connected to the suspension; one of the correction components is located on both sides of the U-shaped box. Each set of the correction components includes: Two calibration plates are symmetrically arranged; the calibration plates are located on both sides of the short or long light strip; the calibration plates are slidably connected to the clamping plate or U-shaped box. Electric push rod B, linked with the correction plate, can drive the correction plate to translate. A rangefinder is mounted on the calibration plate, and the rangefinder can measure the distance between the two calibration plates.

7. The flexible LED strip welding device based on multi-sensor fusion as described in claim 6, characterized in that, The clamping assembly also includes: A limiting post is fixedly installed on the clamping plate; the limiting post is vertically installed. A fixing plate is horizontally installed at the top of the limiting post; The lifting rod is vertically slidably connected to the limiting column, and the upper end of the pressure plate is rotatably connected to the lifting rod; Torsion spring B is disposed at the connection between the lifting rod and the pressure plate; An electric push rod C is fixedly mounted on the fixed plate, and the movable end of the electric push rod C is connected to the lifting rod. Pressure sensor A is disposed between the movable end of the electric push rod C and the lifting rod.

8. The flexible LED strip welding device based on multi-sensor fusion as described in claim 7, characterized in that, One set of the clamping components is located above the protrusion, and the width of the clamping plate of the clamping component is smaller than the width of the notch; Another set of clamping components is located above the notch, and the width of the clamping plate of the clamping component is greater than the width of the notch and less than the width of the long light strip.

9. The flexible LED strip welding device based on multi-sensor fusion as described in claim 8, characterized in that, The welding assembly includes: A robotic arm is mounted on the outside of the suspension. A welding torch is mounted at the working end of the robotic arm. The pressure stabilizing blocks are symmetrically arranged on both sides of the welding gun, and the pressure plate above the notch on the side of the pressure stabilizing blocks that are close to each other has a notch. One set of the clamping components further includes: The support arm is fixedly mounted on one side of the fixed plate; An electric push rod D is mounted on the support arm, and the movable end of the electric push rod D is connected to the pressure stabilizing block. An infrared thermometer is installed on the outside of the welding torch; A line laser scanner is positioned on the side of the welding torch near the long light strip.

10. The flexible LED strip welding device based on multi-sensor fusion as described in claim 9, characterized in that, The light strip storage box of the light strip supply assembly can slide horizontally; The light strip supply assembly also includes: The lifting plate is vertically and slidably connected to the light strip storage box, and the lifting plate can rise or fall. This welding apparatus also includes: A positioning component is used to position the feeding drum. The positioning component includes: A positioning rod is vertically slidably mounted on the outside of the side plate, and the positioning rod is raised and lowered in conjunction with the light strip storage box; A tapered positioning head is disposed at the upper end of the positioning rod; The feeding assembly also includes: A connecting plate is fixedly installed at the end of the feeding drum, and all connecting plates are rotatably connected to the side plate; Two positioning blocks C are symmetrically fixed on the outside of one of the connecting discs; each of the two positioning blocks C has a conical hole on its inner side, and the axis of the conical hole is perpendicular to the axis of the feeding drum; the conical positioning head corresponds to the conical hole.

11. The flexible LED strip welding device based on multi-sensor fusion as described in claim 10, characterized in that, The side plate has a horizontal groove on its body; The light strip supply assembly also includes: The wedge-shaped block is linked to the LED strip storage box and can move synchronously with the LED strip storage box. The positioning component also includes: A roller is rotatably mounted at the lower end of the positioning rod, and the roller is located on the inclined surface of the wedge block; Pressure sensor B is disposed between the positioning rod and the roller; A conical positioning sleeve is disposed on the outside of the positioning rod, and two conical positioning sleeves are symmetrically arranged on the top and bottom; The support components also include: Positioning block A is fixedly connected to the side plate and is located on the upper side of the conical positioning sleeve; Positioning block B is fixedly connected to the side plate and is located on the lower side of the conical positioning sleeve.

12. The flexible LED strip welding device based on multi-sensor fusion as described in claim 11, characterized in that, The ventilation cylinder and the feeding drum are rotatably connected; the feeding assembly further includes: A rotating shaft is coaxially and fixedly connected to the ventilator; the rotating shaft is rotatably disposed inside the connecting plate. The lever is fixedly mounted on the outside of the rotating shaft; The gear is fixedly mounted at the end of the rotating shaft; Two fixing pins are symmetrically fixedly provided on the inner side of the connecting plate; The rotating block is rotatably connected to the fixed pin; A stop block is fixedly installed on the end face of the connecting plate and corresponds to the rotating block. Torsion spring A is disposed between the fixed pin and the rotating block; A vertical plate is fixedly installed on the outside of the wedge-shaped block; The toothed plate is fixedly mounted on the upper part of the vertical plate and meshes with the gear.

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