Welding device for distribution box production

By working in tandem with a linearly arranged tube feeding assembly and a laser ranging probe, the problem of inaccurate manual tube joining in the production of distribution boxes was solved. This achieved automated and precise tube joining and angle recognition, improving welding quality and efficiency while reducing the labor intensity of workers.

CN121776779APending Publication Date: 2026-04-03HEBEI CHANGYOU ELECTRICAL EQUIPMENT CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-06
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing technologies, manual assembly of square tubes during the production of distribution boxes is labor-intensive and prone to inaccurate assembly due to operator fatigue or errors, affecting welding quality. Robotic arms have difficulty recognizing in cluttered environments, leading to gripping failures or incorrect postures, which affects welding efficiency and pass rate.

Method used

The system employs a linear arrangement of pipe feeding components and an integrated material handling and docking component. It utilizes a laser ranging probe to work in conjunction with the ranging value to calculate the angle of the square tube. Combined with an integrated anti-jamming and deflection component, it achieves automated and precise docking and angle recognition of the square tube, avoiding the difficulties and jamming problems of vision system recognition.

Benefits of technology

It significantly reduces the labor intensity of workers, improves welding quality and efficiency, and has a high degree of system flexibility, avoiding clamping failures and angle recognition errors caused by messy workpiece accumulation, thus achieving precise and reliable welding of multiple square tubes.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121776779A_ABST
    Figure CN121776779A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of distribution box production, and particularly relates to a welding device for distribution box production, which comprises a base and a welding robot, the welding robot is fixedly mounted on the base, and the base is further provided with a linear arrangement type pipe feeding assembly; the linear arrangement type pipe feeding assembly comprises a conveying frame fixedly connected to one side of the upper end face of the base, a second conveying belt is arranged on the conveying frame, and a material frame is fixedly connected to the side, close to the conveying frame, of the upper end face of the base. By means of the linear arrangement type pipe feeding assembly and the material taking and butt joint integrated assembly, the process of manual butt joint of square pipes by workers is omitted, and the labor intensity of the workers is remarkably reduced. In the feeding link, compared with the mode that a mechanical arm directly grabs the disorderly-stacked square pipes, the square pipes are firstly arranged and arranged into an ordered linear queue through a specific mechanism, so that the multiple square pipes are separated from one another, and positioning is clear.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of distribution box manufacturing technology, specifically a welding device for distribution box manufacturing. Background Technology

[0002] Distribution boxes are cabinet-like devices installed in buildings, factories, residences, and other electrical locations to receive, distribute, control, and protect electrical energy. In the manufacturing and processing of distribution boxes, large, heavy-duty boxes, or those requiring high structural strength, often use welded square tubing for their load-bearing frames. This structure provides excellent mechanical strength and overall rigidity, thus laying a solid foundation for the installation of heavy internal electrical components and their long-term stable operation.

[0003] Patent CN103464952A discloses a welding fixture for a distribution box, belonging to the field of tooling technology. It includes a base plate with multiple clamping mechanisms fixed to its upper surface. Each clamping mechanism comprises a base and studs bolted to the base plate. A guide rod is mounted on the base, and a guide sleeve is slidably mounted on the guide rod. A positioning rod is connected to the side of the guide sleeve. The positioning rod has a connecting groove that mates with the studs. This patent features a simple, compact, and reasonable structure, providing accurate, fast, and reliable positioning, thus improving work efficiency and welding quality.

[0004] However, the above technical solutions still have the following shortcomings in practical applications: When welding the load-bearing frame of the distribution box, two square tubes of the same specifications, each with one end cut at a 45-degree angle, are often welded together at an angle to form a right-angle structure for subsequent processing and assembly. In this process, workers usually need to manually align the two square tubes and place them on a clamp, which will then clamp them before welding.

[0005] In the mass production of load-bearing frames, the frequent manual docking of square tubes is not only physically demanding for workers, but also prone to inaccurate docking due to operator fatigue or errors, directly affecting welding quality. To address this issue, automated operations using robotic arms were attempted. However, robotic arms typically require a vision positioning device to identify the outline of the square tubes before precise gripping. When the square tubes to be processed are piled up haphazardly due to warehousing management or other reasons, the vision system struggles to reliably and accurately identify the outline and orientation of each tube in the chaotic environment, easily leading to gripping failures or incorrect gripping postures, thus affecting the feeding cycle. Furthermore, due to the inability to accurately identify the outline, the vision system also struggles to determine the precise angle of the square tube end face, causing incorrect docking angles for the robotic arm, ultimately severely impacting welding efficiency and yield. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a welding device for the production of distribution boxes.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a welding device for the production of distribution boxes, including a base and a welding robot, wherein the welding robot is fixedly installed on the base, and the base is also provided with a linear arrangement of pipe feeding components; The linear arrangement pipe feeding assembly includes a conveyor frame fixedly connected to one side of the upper end face of the base. A second conveyor belt is provided on the conveyor frame. A material frame is fixedly connected to the side of the upper end face of the base near the conveyor frame. A first baffle is fixedly connected to one side of the material frame. An inclined placement plate is fixedly connected to one side of the inner cavity of the material frame. A rack is slidably connected to one side of the first baffle along the height direction. A second pusher plate is fixedly connected to one end of the rack. A pusher plate is inserted into and slidably connected to the first pusher plate at one end. The upper end faces of the first pusher plate and the second pusher plate together form an inclined lifting surface. It also includes an integrated material handling and docking component; The integrated material handling and docking assembly includes two support frames fixedly connected to the upper surface of the base. A crossbeam is slidably connected to one side of the upper end of the support frame, and a slider is slidably connected to one side of the crossbeam. An adjustment component for clamping the square tube and adjusting its angle is provided on the bottom surface of the slider. The base is also equipped with a distance measuring angle detection component; The ranging angle detection component includes a support column fixedly connected to one side of the upper surface of the base. A fixing ring is fixedly connected to the upper end of the support column. Multiple radial rods are evenly distributed and slidably connected along the circumference of the fixing ring. A laser ranging probe is fixedly connected to one end of each radial rod.

[0008] Preferably, two guide rods are slidably connected to one side of the upper end of the conveyor frame, and one end of the two guide rods is fixedly connected to a baffle. A cylinder is fixedly connected to the side of the upper end of the conveyor frame away from the push plate. The piston end of the cylinder is fixedly connected to one side of the baffle. An infrared sensor is provided on one side of the conveyor frame.

[0009] Preferably, one end of the crossbeam is threadedly connected to a threaded rod, both ends of which are rotatably mounted on a support frame. A motor is fixedly connected to one side of the upper end of the support frame, and the output end of the motor is fixedly connected to one end of the threaded rod. One end of the slider is threadedly connected to a threaded rod, both ends of which are rotatably mounted on the crossbeam. A motor is fixedly connected to one end of the crossbeam, and the output end of the motor is fixedly connected to one end of the threaded rod.

[0010] Preferably, a second motor is fixedly connected to one side of the upper end of the fixed block, the output end of the second motor is fixedly connected to one side of the upper end of the rotating ring, a first gear is rotatably arranged on one side of the rotating ring, the first gear meshes with the tooth block of the outer ring of the gear ring, and a third motor is fixedly connected to one side of the rotating ring, the output end of the third motor is fixedly connected to the first gear.

[0011] Preferably, an electric push rod is fixedly connected to one side of the push plate 2, and the piston end of the electric push rod is fixedly connected to one side of the push plate 1. A gear 2 is rotatably arranged on one side of the baffle 1, and the gear 2 meshes with a rack. A motor 4 is fixedly connected to one side of the baffle 1, and the output end of the motor 4 is fixedly connected to the gear 2. A filling plate is inserted into and slidably connected to one side of the placement plate. A spring is fixedly connected to one side of the filling plate, and the other end of the spring is fixedly connected to the inner wall of the placement plate. The filling plate is in contact with the surface of the push plate 1.

[0012] Preferably, two guide rods are slidably connected to one side of the baffle, one end of each guide rod is fixedly connected to a pusher plate, and a cylinder is fixedly connected to one side of the baffle, with the piston end of the cylinder fixedly connected to one side of the pusher plate.

[0013] Preferably, the adjustment assembly includes a cylinder one fixedly connected to the bottom of the slider, a fixing block fixedly connected to the piston end of the cylinder one, a rotating ring rotatably provided at the lower center of the fixing block, a gear ring rotatably provided on the inner ring of the rotating ring, cylinder two fixedly connected to both sides of the inner ring of the gear ring, and a positioning plate fixedly connected to the piston end of the cylinder two.

[0014] Preferably, a transmission ring is rotatably sleeved on the outer ring of the fixed ring, a connecting rod is rotatably provided at one end of the radial rod, and one end of the connecting rod is rotatably provided on the transmission ring. A cylinder five is fixedly connected to one side of the fixed ring, and the piston end of the cylinder five is fixedly connected to one end of the radial rod on one side.

[0015] Preferably, it also includes an integrated anti-jamming and deflection component; The integrated anti-jamming and deflection component includes a conveyor belt mounted on a placement plate, and multiple deflection discs are arranged laterally and rotatably on one side of the placement plate.

[0016] Preferably, a worm gear is fixedly connected to one end of the deflection disk, a worm is rotatably provided on one side of the material frame, the worm has multiple segments of worm teeth intermittently arranged on the worm, and each segment of worm teeth meshes with a worm gear, a motor is fixedly connected to one side of the material frame, and the output end of the motor is fixedly connected to one end of the worm.

[0017] The beneficial effects of this invention are as follows: 1. The welding device for producing distribution boxes described in this invention utilizes a linearly arranged tube feeding assembly and an integrated material handling and docking assembly, eliminating the need for manual docking of square tubes by workers and significantly reducing their labor intensity. In the material loading stage, compared to a robotic arm directly grabbing from a chaotic pile of square tubes, this solution first organizes and arranges the square tubes into an orderly linear queue using a specific mechanism, ensuring that multiple square tubes are separated and clearly positioned. Subsequently, the positioning plate only needs to move along a preset path to accurately and reliably grip the target square tube. This process fundamentally avoids problems such as difficulty in visual system recognition due to chaotic workpiece accumulation, leading to gripping failures, incorrect postures, or material loading interruptions. Furthermore, in the angle recognition stage, compared to technologies relying on visual image analysis, this solution uses four laser ranging probes working collaboratively. By calculating the geometric relationship of the ranging values, the angle of the square tube can be directly and accurately determined. When dealing with square tubes of different specifications, there is no need to adjust the hardware or retrain complex vision models. Simply update the corresponding specification parameters in the control system to achieve rapid measurement. This is more compatible with the feeding method in this solution and significantly improves the system's flexibility.

[0018] 2. The welding device for producing distribution boxes according to the present invention utilizes an integrated anti-jamming and deflection component. When the square tube is located on the placement plate, the friction between the conveyor belt and the square tube allows multiple square tubes on the placement plate to move continuously, effectively preventing jamming. Furthermore, multiple deflection discs rotate intermittently. If a square tube cannot be fed due to improper angle, the square tube will rotate due to friction from the deflection discs, actively changing its angle until it can smoothly slide onto the lifting surface, thus avoiding the situation where normal feeding is impossible due to improper square tube angle. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective; Figure 3 This is a schematic diagram of the three-dimensional structure of the conveyor frame; Figure 4 This is a schematic diagram of the three-dimensional structure of the material frame; Figure 5 yes Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a schematic diagram of a three-dimensional structure of a conveyor belt; Figure 7 This is a schematic diagram of a three-dimensional structure of the baffle. Figure 8 yes Figure 7Enlarged view of a section at point B in the middle; Figure 9 This is a schematic diagram of the three-dimensional structure of the support frame; Figure 10 This is a schematic diagram of the three-dimensional structure at the crossbeam; Figure 11 This is a schematic diagram of the three-dimensional structure at the rotating ring; Figure 12 This is a schematic diagram of the three-dimensional structure at the fixing ring; Figure 13 is a schematic diagram of the three-dimensional structure of the laser ranging probe.

[0021] In the diagram: 1. Base; 2. Welding robot; 3. Support frame; 4. Material frame; 5. Conveyor frame; 6. Crossbeam; 7. Conveyor belt one; 8. Placement plate; 9. Support column; 10. Threaded rod one; 11. Motor one; 12. Threaded rod two; 13. Slider; 14. Cylinder one; 15. Rotating ring; 16. Motor two; 17. Motor three; 18. Gear one; 19. Cylinder two; 20. Positioning plate; 21. Gear ring; 22. Conveyor belt two; 23. Guide rod one; 24. Cylinder three; 25. Infrared sensor; 2 6. Deflector; 27. Push plate one; 28. Worm gear; 29. ​​Worm wheel; 30. Baffle one; 31. Push plate; 32. Guide rod two; 33. Cylinder four; 34. Spring; 35. Filler plate; 36. Push plate two; 37. Electric push rod; 38. Rack; 39. Motor four; 40. Gear two; 41. Motor five; 42. Fixed ring; 43. Transmission ring; 44. Radial rod; 45. Baffle two; 46. Cylinder five; 47. Laser rangefinder probe; 48. Connecting rod; 49. Fixed block; 50. Motor six. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please refer to Figures 1-13 The present invention provides a technical solution: a welding device for the production of distribution boxes, including a base 1, a welding robot 2 fixedly installed on one side of the upper end of the base 1, and a linear arrangement of pipe feeding components on the base 1. The linear arrangement pipe feeding assembly includes a conveyor frame 5 fixedly connected to one side of the upper end face of the base 1. A second conveyor belt 22 is provided on the conveyor frame 5. A material frame 4 is fixedly connected to one side of the upper end face of the base 1 near the conveyor frame 5. A first baffle 30 is fixedly connected to one side of the material frame 4. An inclined placement plate 8 is fixedly connected to one side of the inner cavity of the material frame 4. A rack 38 is slidably connected to one side of the first baffle 30 along the height direction. A second push plate 36 is fixedly connected to one end of the rack 38. A first push plate 27 is inserted into and slidably connected to one end of the second push plate 36. The upper end faces of the first push plate 27 and the second push plate 36 together form an inclined lifting surface. It also includes an integrated material handling and docking component; The integrated material handling and docking component includes two support frames 3 fixedly connected to the upper surface of the base 1. A crossbeam 6 is slidably connected to one side of the upper end of the support frame 3, and a slider 13 is slidably connected to one side of the crossbeam 6. An adjustment component for clamping the square tube and adjusting the angle is provided on the bottom surface of the slider 13. The base 1 is also equipped with a distance measuring angle detection component; The ranging angle detection component includes a support column 9 fixedly connected to one side of the upper surface of the base 1. A fixing ring 42 is fixedly connected to the upper end of the support column 9. Multiple radial rods 44 are evenly distributed and slidably connected along the circumference of the fixing ring 42. A laser ranging probe 47 is fixedly connected to one end of each radial rod 44.

[0024] In this embodiment, as Figures 3-5 , Figure 7 , Figure 8 , Figures 9-13 As shown, two guide rods 23 are slidably connected to the upper end of the conveyor frame 5 away from the push plate 36. One end of the two guide rods 23 is fixedly connected to a baffle 45. A cylinder 24 is fixedly connected to one side of the upper end of the conveyor frame 5. The piston end of the cylinder 24 is fixedly connected to one side of the baffle 45. An infrared sensor 25 is provided on one side of the conveyor frame 5.

[0025] One end of the crossbeam 6 is threadedly connected to a threaded rod 10. Both ends of the threaded rod 10 are rotatably mounted on the support frame 3. One side of the upper end of the support frame 3 is fixedly connected to a motor 11. The output end of the motor 11 is fixedly connected to one end of the threaded rod 10. One end of the slider 13 is threadedly connected to a threaded rod 2 12. Both ends of the threaded rod 2 12 are rotatably mounted on the crossbeam 6. One end of the crossbeam 6 is fixedly connected to a motor 6 50. The output end of the motor 6 50 is fixedly connected to one end of the threaded rod 2 12.

[0026] A second motor 16 is fixedly connected to one side of the upper end of the fixed block 49. The output end of the second motor 16 is fixedly connected to one side of the upper end of the rotating ring 15. A first gear 18 is rotatably arranged on one side of the rotating ring 15. The first gear 18 meshes with the tooth block of the outer ring of the gear ring 21. A third motor 17 is fixedly connected to one side of the rotating ring 15. The output end of the third motor 17 is fixedly connected to the first gear 18.

[0027] An electric push rod 37 is fixedly connected to one side of the push plate 26. The piston end of the electric push rod 37 is fixedly connected to one side of the push plate 1 27. A gear 2 40 is rotatably installed on one side of the baffle 1 30. The gear 2 40 meshes with the rack 38. A motor 4 39 is fixedly connected to one side of the baffle 1 30. The output end of the motor 4 39 is fixedly connected to the gear 2 40. A filling plate 35 is inserted into and slidably connected to one side of the placement plate 8. A spring 34 is fixedly connected to one side of the filling plate 35. The other end of the spring 34 is fixedly connected to the inner wall of the placement plate 8. The filling plate 35 is in contact with the surface of the push plate 1 27.

[0028] Two guide rods 32 are slidably connected to one side of the baffle 30. One end of the guide rod 32 is fixedly connected to the pusher plate 31. A cylinder 33 is fixedly connected to one side of the baffle 30. The piston end of the cylinder 33 is fixedly connected to one side of the pusher plate 31.

[0029] The adjustment assembly includes a cylinder 14 fixedly connected to the bottom of the slider 13. A fixing block 49 is fixedly connected to the piston end of the cylinder 14. A rotating ring 15 is rotatably arranged in the middle of the lower end of the fixing block 49. A gear ring 21 is rotatably arranged in the inner ring of the rotating ring 15. Cylinders 29 are fixedly connected to both sides of the inner ring of the gear ring 21. A positioning plate 20 is fixedly connected to the piston end of cylinder 29.

[0030] A transmission ring 43 is rotatably sleeved on the outer ring of the fixed ring 42. A connecting rod 48 is rotatably mounted on one end of the radial rod 44. One end of the connecting rod 48 is rotatably mounted on the transmission ring 43. A cylinder 46 is fixedly connected to one side of the fixed ring 42. The piston end of the cylinder 46 is fixedly connected to one end of the radial rod 44 on one side.

[0031] Specifically, in existing technologies, when welding the load-bearing frame of a distribution box, two square tubes of the same specifications, each with one end cut at a 45-degree angle, are often welded together at an angle to form a right-angle structure for subsequent processing and assembly. In this process, workers typically need to manually align the two square tubes and place them on a clamp, which then clamps them before welding.

[0032] In the mass production of load-bearing frames, this method of frequent manual docking of square tubes not only results in high labor intensity for workers but also easily leads to inaccurate docking due to operator fatigue or errors, directly affecting welding quality. Furthermore, robotic arms typically require visual positioning devices to identify the outline of the square tubes before they can be precisely gripped. When the square tubes to be processed are piled up haphazardly due to warehousing management issues, gripping failures or incorrect gripping postures are highly likely, thus affecting the feeding cycle.

[0033] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: This solution is applied to welding square tubes of the same specifications from the same batch, with one end having a 45-degree angle and a square cross-section.

[0034] First, the upper surfaces of push plate 27 and push plate 36 together form a rectangular lifting surface. The width of the lifting surface is adjusted by using the electric actuator 37 to slide push plate 27 on push plate 36, according to the width of the square tube to be welded, ensuring that this width is equal to the width of the square tube. The filler plate 35 will maintain a tight fit with push plate 27 under the action of spring 34. Similarly, cylinder 24 moves baffle 45 laterally, adjusting the distance between one end face of baffle 45 and the upper edge of baffle 30, ensuring that this distance is equal to the width of the square tube.

[0035] After the above adjustments are completed, the multiple square tubes to be processed can be placed on the placement plate 8 at once. Since the placement plate 8 is tilted and the push plate 27 in the initial state is aligned with the lower edge of the upper surface of the placement plate 8, the multiple square tubes will slide down to the baffle 30 under the action of gravity and be blocked by the baffle 30. Then, the motor 39 drives the gear 40 to rotate, which will make the rack 38 and the push plate 36 move upward until the lifting surface formed by the push plate 27 and the push plate 36 is aligned with the upper edge of the baffle 30. Then the push plate 27 and the push plate 36 are reset to the initial position. By repeating this process, the square tube can be lifted intermittently using the lifting surface. However, since the length of the square tube is much greater than its width, it can only be lifted when its length is parallel to the length of the lifting surface. Otherwise, the square tube will fall because its center of gravity is not on the lifting surface. This allows multiple square tubes to be lifted sequentially to the top of the baffle 30. The length of the square tubes that can be lifted to the top of the baffle 30 is parallel to the length of the lifting surface. Furthermore, since the width of the lifting surface is equal to the width of the square tube, the square tubes cannot be placed side by side on the lifting surface.

[0036] When the square tube reaches the top of the baffle 30, due to the inclined setting of the lifting surface, the square tube will slide to the surface of the conveyor belt 22 after losing the obstruction of the baffle 30. Furthermore, due to the restriction of the baffle 45, the length direction of the square tube that moves onto the conveyor belt 22 is also parallel to the length direction of the baffle 45, and the two are in contact.

[0037] However, when the lifting surface raises the square tubes, the square tubes may overlap on the lifting surface. Therefore, during the lifting process, when the distance between the upper surface of the lifting surface and the lower edge of the pusher plate 31 is equal to the height of the square tube, the lifting surface stops rising. Then, cylinder 4 33 drives the pusher plate 31 to move, which pushes the overlapping square tubes off the lifting surface. Then, the pusher plate 31 resets, and the lifting surface continues to rise. After the above operation, the multiple square tubes arriving on conveyor belt 22 are arranged in a linear state, neither side by side nor overlapping. Then, the square tube moves under the action of conveyor belt 22. When the square tube reaches below the infrared sensor 25, the infrared sensor 25 will detect the signal, and the material handling and docking integrated component will start to work. The motor 11 on one side drives the threaded rod 10 to rotate, the motor 50 drives the threaded rod 12 to rotate, and the cylinder 14 drives the rotating ring 15 to rise and fall, adjusting the position of the rotating ring 15 in the x, y, and z axis directions, and making the axis of the rotating ring 15 coincide with the center of the square tube cross section on the conveyor belt 22. When the square tube passes the infrared sensor 25 and part of the square tube crosses the conveyor belt 22, the square tube will pass through the center of the rotating ring 15. At this time, the conveyor belt 22 stops running, and the two cylinders 19 on the toothed ring 21 drive the positioning plate 20 to move and clamp the square tube.

[0038] Subsequently, the square tube is removed from conveyor belt 22. Then, the position of the rotating ring 15 is readjusted so that its axis coincides with that of the fixed ring 42. Based on the distance from the edge of the square tube's cross-section to its center, cylinder 5 46 drives one radial rod 44 to slide on the fixed ring 42. Through the transmission of connecting rod 48 and transmission ring 43, multiple radial rods 44 slide simultaneously, adjusting the distance between the laser ranging probe 47 and the axis of the fixed ring 42, ensuring this distance is equal to the distance from the edge of the square tube's cross-section to its center. At this point, multiple laser ranging probes 47 are activated simultaneously, measuring their distance from the square tube's cross-section. If the distances are the same, it indicates that the flat end of the square tube is facing the laser ranging probe 47. Then, motor 2 16 drives the rotating ring 15 to rotate 180 degrees, so that the inclined surface of the square tube faces the laser ranging probe 47. At this point, regardless of the square tube's angle, only two laser ranging probes 47 will measure the same distance, while the other two will measure different distances. The control system determines the angle of the square tube based on the distance information measured by the four laser ranging probes 47. Then, motor 3 17 drives gear 18 to rotate, causing the gear ring 21 and the square tube to rotate synchronously, adjusting the square tube to a suitable angle. At this point, the adjusted square tube can be removed from the end of conveyor belt 22, and conveyor belt 22 continues to operate, repeating the above operation. Two positioning plates 20 on the other side clamp the square tube, acquiring its angle information and adjusting it to a suitable angle. The control system can then adjust the orientation of the two rotating rings 15 to precisely align the beveled ends of the two square tubes. The welding robot 2 then welds the joint between the two square tubes, forming a right-angle structure. Finally, the welded structure can be removed.

[0039] Repeating the above operations allows for precise and automatic welding of multiple square tubes together at an angle, eliminating the need for manual assembly and significantly reducing worker workload. In the loading stage, compared to a robotic arm directly grabbing from a jumbled pile of square tubes, this solution first uses a specific mechanism to organize and arrange the tubes into an orderly linear queue, ensuring clear separation and positioning of multiple tubes. Subsequently, the positioning plate 20 simply moves along a preset path to accurately and reliably grip the target square tube. This process fundamentally avoids difficulties in visual system recognition caused by messy workpiece stacking, which can lead to gripping failures, incorrect postures, or loading interruptions. Furthermore, in the angle recognition stage, compared to technologies relying on visual image analysis, this solution uses four laser ranging probes 47 working collaboratively. By calculating the geometric relationship of the ranging values, the angle of the square tube can be directly and accurately determined. When dealing with square tubes of different specifications, there is no need to adjust the hardware or retrain complex vision models. Simply update the corresponding specification parameters in the control system or have the system automatically identify them to achieve rapid adaptation and measurement, significantly improving the system's flexibility.

[0040] In this embodiment, as Figure 3 , Figure 4 , Figure 6 As shown, it also includes an integrated anti-jamming and deflection component; The anti-jamming and deflection integrated component includes a conveyor belt 7 installed on a placement plate 8, and multiple deflection discs 26 arranged laterally and rotating on one side of the placement plate 8.

[0041] A worm gear 29 is fixedly connected to one end of the deflection disk 26. A worm 28 is rotatably arranged on one side of the material frame 4. Multiple worm teeth are intermittently arranged on the worm 28, and each worm tooth meshes with a worm gear 29. A motor 41 is fixedly connected to one side of the material frame 4. The output end of the motor 41 is fixedly connected to one end of the worm 28.

[0042] Specifically, in the above embodiments, although the square tubes can be lifted using push plate 27 and push plate 36 to achieve automatic feeding, this method requires the length direction of the square tube to be parallel to the length direction of the lifting surface. However, if the angle of the square tube is incorrect, normal feeding may be continuously impossible. Furthermore, when a large number of square tubes accumulate on the placement plate 8, the square tubes may become stuck and unable to slide down normally, which also affects subsequent normal feeding.

[0043] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: When the square tube is positioned on the placement plate 8, the conveyor belt 7 starts, transporting the square tube towards the baffle 30. The friction between the conveyor belt 7 and the square tube ensures continuous movement of the multiple square tubes on the placement plate 8, effectively preventing jamming. Furthermore, the motor 41 intermittently drives the worm gear 28 to reciprocate. Each time the worm gear 28 rotates, multiple deflector discs 26 rotate. If a square tube cannot be fed due to an improper angle, it will rotate due to friction from the deflector discs 26, actively changing its angle until it can smoothly slide onto the lifting surface, thus preventing feeding failure due to improper angle. Moreover, because the deflector discs 26 rotate intermittently, even if a square tube with a correct angle deflects, it will reset when the deflector discs 26 rotate subsequently, without affecting normal feeding.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for producing electrical distribution boxes, comprising a base (1) and a welding robot (2), wherein the welding robot (2) is fixedly mounted on the base (1), characterized in that: The base (1) is also provided with a linear arrangement of pipe feeding components; The linear arrangement pipe feeding assembly includes a conveyor frame (5) fixedly connected to one side of the upper end face of the base (1). A second conveyor belt (22) is provided on the conveyor frame (5). A material frame (4) is fixedly connected to the side of the upper end face of the base (1) near the conveyor frame (5). A first baffle (30) is fixedly connected to one side of the material frame (4). An inclined placement plate (8) is fixedly connected to one side of the inner cavity of the material frame (4). A rack (38) is slidably connected to one side of the first baffle (30) along the height direction. A second push plate (36) is fixedly connected to one end of the rack (38). A first push plate (27) is inserted into and slidably connected to one end of the second push plate (36). The upper end faces of the first push plate (27) and the second push plate (36) together form an inclined lifting surface. It also includes an integrated material handling and docking component; The material handling and docking integrated component includes two support frames (3) fixedly connected to the upper surface of the base (1). A crossbeam (6) is slidably connected to one side of the upper end of the support frame (3), and a slider (13) is slidably connected to one side of the crossbeam (6). An adjustment component for clamping the square tube and adjusting the angle is provided on the bottom surface of the slider (13). The base (1) is also provided with a distance measuring angle detection component; The ranging angle detection component includes a support column (9) fixedly connected to one side of the upper surface of the base (1). A fixing ring (42) is fixedly connected to the upper end of the support column (9). Multiple radial rods (44) are evenly distributed and slidably connected along the circumference of the fixing ring (42). A laser ranging probe (47) is fixedly connected to one end of the radial rod (44).

2. The welding device for producing distribution boxes according to claim 1, characterized in that: Two guide rods (23) are slidably connected to the side of the upper end of the conveyor frame (5) away from the push plate (36). One end of the two guide rods (23) is fixedly connected to the baffle (45). A cylinder (24) is fixedly connected to one side of the upper end of the conveyor frame (5). The piston end of the cylinder (24) is fixedly connected to one side of the baffle (45). An infrared sensor (25) is provided on one side of the conveyor frame (5).

3. The welding device for producing distribution boxes according to claim 2, characterized in that: One end of the crossbeam (6) is threadedly connected to a threaded rod (10), both ends of which are rotatably mounted on the support frame (3). One side of the upper end of the support frame (3) is fixedly connected to a motor (11), the output end of which is fixedly connected to one end of the threaded rod (10). One end of the slider (13) is threadedly connected to a threaded rod (12), both ends of which are rotatably mounted on the crossbeam (6). One end of the crossbeam (6) is fixedly connected to a motor (50), the output end of which is fixedly connected to one end of the threaded rod (12).

4. The welding device for producing distribution boxes according to claim 1, characterized in that: A second motor (16) is fixedly connected to one side of the upper end of the fixed block (49). The output end of the second motor (16) is fixedly connected to one side of the upper end of the rotating ring (15). A first gear (18) is rotatably arranged on one side of the rotating ring (15). The first gear (18) meshes with the tooth block of the outer ring of the gear ring (21). A third motor (17) is fixedly connected to one side of the rotating ring (15). The output end of the third motor (17) is fixedly connected to the first gear (18).

5. The welding device for producing distribution boxes according to claim 1, characterized in that: An electric push rod (37) is fixedly connected to one side of the push plate 2 (36). The piston end of the electric push rod (37) is fixedly connected to one side of the push plate 1 (27). A gear 2 (40) is rotatably arranged on one side of the baffle 1 (30). The gear 2 (40) meshes with the rack (38). A motor 4 (39) is fixedly connected to one side of the baffle 1 (30). The output end of the motor 4 (39) is fixedly connected to the gear 2 (40). A filling plate (35) is inserted into and slidably connected to one side of the placement plate (8). A spring (34) is fixedly connected to one side of the filling plate (35). The other end of the spring (34) is fixedly connected to the inner wall of the placement plate (8). The filling plate (35) is in contact with the surface of the push plate 1 (27).

6. The welding device for producing distribution boxes according to claim 1, characterized in that: Two guide rods (32) are slidably connected to one side of the baffle (30). One end of the guide rod (32) is fixedly connected to a pusher plate (31). A cylinder (33) is fixedly connected to one side of the baffle (30). The piston end of the cylinder (33) is fixedly connected to one side of the pusher plate (31).

7. The welding device for producing distribution boxes according to claim 1, characterized in that: The adjustment assembly includes a cylinder (14) fixedly connected to the bottom of the slider (13). A fixed block (49) is fixedly connected to the piston end of the cylinder (14). A rotating ring (15) is rotatably provided at the lower middle part of the fixed block (49). A toothed ring (21) is rotatably provided on the inner ring of the rotating ring (15). Cylinders (19) are fixedly connected to both sides of the inner ring of the toothed ring (21). A positioning plate (20) is fixedly connected to the piston end of cylinder (19).

8. The welding device for producing distribution boxes according to claim 1, characterized in that: A transmission ring (43) is rotatably sleeved on the outer ring of the fixed ring (42). A connecting rod (48) is rotatably mounted on one end of the radial rod (44). One end of the connecting rod (48) is rotatably mounted on the transmission ring (43). A cylinder five (46) is fixedly connected to one side of the fixed ring (42). The piston end of the cylinder five (46) is fixedly connected to one end of the radial rod (44) on one side.

9. The welding device for producing distribution boxes according to claim 1, characterized in that: It also includes an integrated anti-jamming and anti-deflection component; The anti-jamming and deflection integrated component includes a conveyor belt (7) installed on the placement plate (8), and multiple deflection discs (26) are arranged laterally and rotated on one side of the placement plate (8).

10. A welding device for producing distribution boxes according to claim 9, characterized in that: One end of the deflection disk (26) is fixedly connected to a worm gear (29), and a worm (28) is rotatably provided on one side of the material frame (4). Multiple worm teeth are intermittently provided on the worm (28), and each worm tooth meshes with a worm gear (29). A motor (41) is fixedly connected to one side of the material frame (4), and the output end of the motor (41) is fixedly connected to one end of the worm (28).

Citation Information

Patent Citations

  • Welding tool of power distribution box

    CN103464952A