Plasma welding device for square indicator light pole processing
Patent Information
- Application Number
- CN202611048154.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-15
- Publication Date
- 2026-09-15
Smart Images
Figure CN122746569A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of square indicator light pole welding technology, specifically a plasma welding device for processing square indicator light poles. Background Technology
[0002] Indicator light poles come in various shapes, including square ones. In coastal or high-humidity areas, indicator light poles need to be made of stainless steel, eliminating the need for hot-dip galvanizing to avoid the risk of zinc layer peeling off, and their lifespan can reach more than 30 years.
[0003] Currently, plasma welding is sometimes used when welding stainless steel, as it can increase welding speed, reduce heat deformation, and increase joint strength. However, the following problems still exist when welding square indicator light poles: 1. Square indicator light poles have both edges and flat surfaces, which allows for better fixation during welding. However, the bottom part requires the indicator light pole to be flipped over before welding. Since the indicator light pole is relatively heavy, manually flipping it is time-consuming and laborious, resulting in low welding efficiency. 2. When flipping the indicator light pole, one side may tilt up, causing a significant shift in the position of the indicator light pole on the conveyor belt, which may affect subsequent welding. 3. When feeding the raw materials for the indicator light pole, there may be a slight angular deviation between the middle pole (middle pole) and the top pole (upper pole) when they are placed. During the transfer process, the angle of the pole is still likely to change, which further reduces the welding efficiency. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a plasma welding device for processing square indicator light poles. The main purpose is to solve the problems of heavy indicator light poles, the time-consuming and labor-intensive process of manual flipping leading to low welding efficiency, the tendency for one side to tilt during flipping, causing significant displacement of the pole on the conveyor belt and affecting subsequent welding, and the tendency for slight angular deviations between the middle and top sections of the pole during material loading, which can further reduce welding efficiency during transport due to angle changes.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A plasma welding device for processing square indicator light poles includes a frame and a pole body. The pole body includes a middle pole, an upper pole, and a flange seat. The top of the frame is equipped with a loading and positioning module for positioning and rotating the flange seat. The top of the frame is also equipped with a first conveyor belt and two second conveyor belts. The first conveyor belt transports the upper pole, and the second conveyor belts transport the middle pole. A flipping module is located between the two second conveyor belts to rotate and correct the angle of the middle pole. Above the conveyor belt is a rotary limiting module for flipping and pressing down the middle rod. The top of the frame is a pusher contact module for adjusting the position of the middle rod that is not welded to the flange seat. At both ends of the top of the frame are pusher correction modules for adjusting the position of the middle rod and the upper rod with the flange seat welded to them. One of the pusher correction modules is a feeding correction module for correcting the angle and positioning of the upper rod. The top of the frame is a plasma welding module for welding the flange seat, the middle rod and the upper rod.
[0006] Furthermore, the flipping module includes a fourth hydraulic cylinder fixed to the inner wall of the bottom of the frame. The movable end of the fourth hydraulic cylinder is fixed to a slide by bolts. A rotating shaft is rotatably connected between the inner walls of the two sides of the slide. Multiple evenly distributed placement plates are fixed to the outer circumference of the rotating shaft by bolts. Pads are fixed to both sides of the placement plates by bolts. A servo motor is fixed to one side of the slide by bolts. The output shaft of the servo motor is keyed to a first pulley. A second pulley is keyed to one end of the rotating shaft, and the first pulley and the second pulley are driven by a belt.
[0007] Based on the aforementioned scheme, the rotation limiting module includes two fixed frames fixed to the inner wall of the top of the frame. The top of the fixed frame is provided with multiple sliding holes, and sliding rods are slidably connected in the sliding holes. Pressure plates are welded to the bottom of the multiple sliding rods. Springs are fixed between the pressure plates and the fixed frames by bolts. A connecting plate is welded between the two pressure plates.
[0008] As a further embodiment of the present invention, the material pushing and positioning module includes a mounting frame fixed to the top of the frame, a fifth hydraulic cylinder is fixed to one inner wall of the mounting frame by bolts, and a second push plate is fixed to the movable end of the fifth hydraulic cylinder by bolts.
[0009] Furthermore, the feeding and positioning module includes a servo motor fixed to the inner wall of one side of the mounting frame. The output shaft of the servo motor is keyed to the positioning frame. A first limiting block and a second limiting block are welded to the outer wall of one side of the mounting frame, and the positioning frame is in contact with the first limiting block.
[0010] Based on the aforementioned scheme, the plasma welding module includes a first hydraulic cylinder fixed to the outer wall of the top of the frame. The movable end of the first hydraulic cylinder is fixed to a mounting plate by bolts. Both ends of the bottom of the mounting plate are fixed to a fixing seat by bolts. The bottom of the fixing seat is rotatably connected to an L-shaped frame that can be fixed by bolts. One side of the L-shaped frame is rotatably connected to a clamp that can be fixed by bolts. The center of the clamp is fixed to a plasma welding gun by bolts.
[0011] As a further embodiment of the present invention, the loading and positioning module includes a second hydraulic cylinder fixed to the inner wall of the bottom of the frame. The movable end of the second hydraulic cylinder is fixed to a positioning frame by bolts. The middle layer of the frame has a clearance opening, and the positioning frame passes through the clearance opening. The top of the positioning frame has a positioning groove, and the top of multiple sides of the positioning groove is a slope. A limit plate is welded to one side of the frame, and the limit plate is located in the positioning groove. A baffle is fixed to one side of the frame by bolts. A resistance-reducing component for reducing the rotational resistance of the flange seat is provided on one side of the frame.
[0012] Furthermore, the drag-reducing component includes multiple mounting slots formed on one side of the baffle, and ball bearings are placed in the mounting slots.
[0013] Based on the aforementioned scheme, the material pushing contact module includes a third hydraulic cylinder fixed to the inner wall of the top of the frame. The moving end of the third hydraulic cylinder passes through the frame and is fixed to a first push plate by bolts. Two guide rods are fixed to one side of the first push plate by bolts, and the two guide rods are slidably connected to the frame.
[0014] As a further embodiment of the present invention, a connecting shaft is fixed between the pulleys at both ends of the two second conveyor belts by bolts, and a positioning plate is fixed at one end of the middle layer of the frame by bolts.
[0015] Compared with the prior art, the present invention provides a plasma welding device for processing square indicator light poles, which has the following beneficial effects: 1. This invention, through the coordinated use of multiple modules, can not only achieve the flipping of the middle rod during the welding process, improving the welding efficiency of the device, but also correct the angle between the middle rod and the upper rod, ensuring accurate positioning during welding. Furthermore, it can prevent the middle rod from tilting due to uneven weight distribution, thus improving the operational stability of the device.
[0016] 2. The present invention, by providing a flipping module, can not only adjust the angle of the middle rod to ensure accurate contact between the middle rod and the flange seat or the upper rod, thus improving the welding quality of the device, but also drive the middle rod to flip, thereby changing the welding position and improving the welding efficiency of the device.
[0017] 3. By incorporating a rotation limiting module, this invention ensures that the pressure plate remains in continuous contact with the middle rod during its upward movement and flipping, preventing warping of the middle rod during rotation and thus improving the stability of the middle rod's flipping.
[0018] 4. By incorporating a material pushing and positioning module, this invention eliminates the need for manual adjustment of the positions of the middle rod and the upper rod, further improving the welding efficiency of the device.
[0019] 5. By incorporating a feeding and straightening module, this invention can prevent the straightening frame from contacting the first conveyor belt and the frame body, thereby improving the service life of the device. It can also separate the straightening frame from the upper rod body, allowing the upper rod body to rotate and further improving the welding quality of the device.
[0020] 6. By incorporating a plasma welding module, this invention enables simultaneous welding on both sides, further improving the welding efficiency of the device.
[0021] 7. By incorporating a feeding and positioning module, this invention can both limit the position of the flange seat and prevent the flange seat from rotating when the central rod body is flipped, thereby improving the smoothness of the device's operation.
[0022] 8. By incorporating a pusher contact module, this invention ensures that the welding position remains unchanged, thereby preventing unnecessary damage to the plasma welding torch due to position changes and improving the protection of the plasma welding torch. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural schematic diagram of a plasma welding device for processing square indicator light poles proposed in this invention; Figure 2 This is an enlarged structural diagram of the main body of a square indicator light pole for processing a plasma welding device proposed in this invention; Figure 3 This invention proposes a plasma welding device for processing square indicator light poles. Figure 1 A partially enlarged structural diagram; Figure 4 This invention proposes a plasma welding device for processing square indicator light poles. Figure 3 A partially enlarged structural diagram; Figure 5 This is an enlarged structural diagram of the rotating limiting module of a plasma welding device for processing square indicator light poles proposed in this invention; Figure 6 This is an enlarged structural diagram of the plasma welding module of a plasma welding device for processing square indicator light poles proposed in this invention; Figure 7This is an enlarged structural diagram of the loading and positioning module of a plasma welding device for processing square indicator light poles proposed in this invention; Figure 8 This invention proposes a plasma welding device for processing square indicator light poles. Figure 7 A partial sectional view of the structure; Figure 9 This is an enlarged structural diagram of the pusher contact module of a plasma welding device for processing square indicator light poles proposed in this invention; Figure 10 This is an enlarged structural diagram of the flipping module of a plasma welding device for processing square indicator light poles proposed in this invention; Figure 11 This invention proposes a plasma welding device for processing square indicator light poles. Figure 10 A partial sectional view of the structure; Figure 12 This is an enlarged structural diagram of the pusher and alignment module of a plasma welding device for processing square indicator light poles proposed in this invention; Figure 13 This is an enlarged structural diagram of the loading and positioning module of a plasma welding device for processing square indicator light poles proposed in this invention.
[0024] In the diagram: 1. Frame; 2. First conveyor belt; 3. Second conveyor belt; 4. Main body of the lamp post; 401. Middle pole; 402. Upper pole; 403. Flange seat; 5. Rotation limit module; 501. Fixing frame; 502. Slide rod; 503. Spring; 504. Connecting plate; 505. Pressure plate; 6. Plasma welding module; 601. First hydraulic cylinder; 602. Mounting plate; 603. Fixing seat; 604. L-shaped frame; 605. Plasma welding gun; 606. Clamp; 7. Loading and positioning module; 701. Second hydraulic cylinder; 702. Positioning frame; 703. Alternating opening; 704. Baffle; 705. Ball bearing; 706. Mounting groove; 707. Limiting plate; 708. Inclined surface; 709. Positioning groove; 8. Pushing contact module; 801. Third hydraulic cylinder; 802. Guide rod; 803. First push plate; 9. Tilting module; 901. Fourth hydraulic cylinder; 902. Slide carriage; 903. Rotating shaft; 904. Placement plate; 905. Pad plate; 906. Servo motor; 907. First pulley; 908. Second pulley; 10. Positioning plate; 11. Connecting shaft; 12. Pushing and straightening module; 1201. Mounting bracket; 1202. Second push plate; 1203. Fifth hydraulic cylinder; 13. Loading and straightening module; 1301. Servo motor; 1302. First limit block; 1303. Second limit block; 1304. Straightening frame. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
[0026] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They 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 limiting the invention.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0028] Please see Figures 1-13As shown, a plasma welding device for processing square indicator light poles includes a frame 1 and a pole body 4. The pole body 4 includes a middle pole 401, an upper pole 402, and a flange seat 403. The upper pole 402 is used to install indicator lights, and the flange seat 403 is used to fix the pole body 4 to the ground. The top of the frame 1 is provided with a loading and positioning module 7 for positioning and rotating the flange seat 403. The top of the frame 1 is provided with a first conveyor belt 2 and two second conveyor belts 3. The pulleys at both ends of the two second conveyor belts 3 are fixed with connecting shafts 11 by bolts, so that the two second conveyor belts 3 can rotate at the same speed. The first conveyor belt 2 is used to transport the upper pole 402, and the second conveyor belts 3 are used to transport the middle pole 401. A middle section is provided between the two second conveyor belts 3. There is a flipping module 9 that drives the middle rod 401 to flip and corrects the angle of the middle rod 401. Above the two second conveyor belts 3, there is a rotation limiting module 5 that presses down the flipped middle rod 401. The top of the frame 1 is equipped with a push contact module 8 that adjusts the position of the middle rod 401 that is not welded to the flange seat 403. At both ends of the top of the frame 1, there are push correction modules 12 that adjust the position of the middle rod 401 and the upper rod 402 that are welded to the flange seat 403. One of the push correction modules 12 is equipped with a feeding correction module 13 that corrects the angle and positions the upper rod 402. The top of the frame 1 is equipped with a plasma welding module 6 that welds the flange seat 403, the middle rod 401 and the upper rod 402. Both the first conveyor belt 2 and the second conveyor belt 3 are conveyors. The width of the first conveyor belt 2 exceeds the length of the upper rod 402, and the width of the second conveyor belt 3 is 100 mm. Both the first conveyor belt 2 and the second conveyor belt 3 include a conveyor belt, rollers, reducers, tensioning rollers, redirecting rollers / drums and control systems. Those skilled in the art can set them according to actual needs, which will not be elaborated here. In use, multiple middle rods 401 are placed on two second conveyor belts 3, multiple upper rods 402 are placed on the first conveyor belt 2, and the flange seat 403 is placed on the loading and positioning module 7. The multiple middle rods 401 are moved by the second conveyor belts 3 so that the foremost middle rod 401 contacts the foremost flipping module 9. The flipping module 9 and the second conveyor belt 3 cooperate to correct the angle of the middle rod 401. At the same time, the first conveyor belt 2 will drive the upper rod 402 to move and make the upper rod 402 contact the feeding and positioning module 13. The feeding and positioning module 13 will perform angle correction and position positioning of the upper rod 402. During the process of the first conveyor belt 2 driving the upper rod 402 to move, there is a sufficiently large gap between two adjacent upper rods 402. The flipping module 9 will cause the foremost middle rod 401 to flip. During the flipping process, the rotation limit module 5 will limit the middle rod 401 to prevent it from warping. The second conveyor belt 3 continues to drive the middle rod 401 to move, so that the middle rod 401 moves to the next flipping module 9. At this time, the middle rod 401 is located at the flange seat 403. The middle rod 401 is pushed to the flange seat 403 by the pushing contact module 8, so that the middle rod 401 contacts the flange seat 403. The middle rod 401 and the flange seat 403 are welded on both sides by the plasma welding module 6. After the welding is completed, the middle rod 401 and the flange seat 403 are flipped by the flipping module 9 so that the unwelded sides can be welded. This process repeats the horizontal movement and longitudinal position correction of the middle rod 401. Then the plasma welding module 6 is used to weld the other two sides to complete the welding of the middle rod 401 and the flange seat 403. After the middle rod 401 and the flange seat 403 are welded, they will still be flipped by the flipping module 9 so that the middle rod 401 and the flange seat 403 can be moved to the next welding station, that is, the position where the upper rod 402 is positioned. The upper rod 402 and the middle rod 401 are adjusted by the pusher and positioning module 12 so that the upper rod 402 and the middle rod 401 come into contact, thereby enabling the plasma welding module 6 to weld the upper rod 402 and the middle rod 401. The upper pole 402 and the middle pole 401 are welded using the plasma welding module 6. The welding process is the same as that between the flange seat 403 and the middle pole 401, which is a two-sided welding process. This completes the welding of the upper pole 402 and the middle pole 401, and then completes the welding of the lamp post body 4. It can not only flip the middle rod 401 during the welding process to improve the welding efficiency of the device, but also correct the angle between the middle rod 401 and the upper rod 402 to ensure accurate positioning during welding. It can also prevent the middle rod 401 from tilting due to uneven weight distribution, thus improving the operational stability of the device.
[0029] In order to rotate the middle rod 401 and correct its angle, the rotating module 9 of this invention includes a fourth hydraulic cylinder 901 fixed to the inner wall of the bottom of the frame 1. The movable end of the fourth hydraulic cylinder 901 is fixed to a slide 902 by bolts. A rotating shaft 903 is rotatably connected between the inner walls of the two sides of the slide 902. Multiple evenly distributed placement plates 904 are fixed to the outer circumference of the rotating shaft 903 by bolts. The width of the placement plate 904 is more than half the width of the middle rod 401, but does not exceed the width of the middle rod 401, so that a single rotation of the placement plate 904 can only rotate one middle rod 401. Both sides of the placement plate 904 are fixed to a pad 905 by bolts. The pad 905 can be removed and replaced. When the second conveyor belt 3 moves the middle rod 401, the middle rod 401 will come into contact with the pad 905, thus blocking the middle rod 401. As the second conveyor belt 3 continues to move the middle rod 401, the middle rod 401 will press the pad 905, thereby adjusting the angle of the middle rod 401 by the pad 905, so that one side of the middle rod 401 is in complete contact with the pad 905, realizing the angle adjustment of the middle rod 401, making the contact point between the middle rod 401 and the flange seat 403 or the upper rod 402 accurate, and improving the welding quality of the device. A servo motor 906 is fixed to one side of the carriage 902 by bolts. The output shaft of the servo motor 906 is keyed to a first pulley 907. One end of the rotating shaft 903 is keyed to a second pulley 908. The first pulley 907 and the second pulley 908 are driven by a belt. Both the first pulley 907 and the second pulley 908 are synchronous pulleys. The belt is a synchronous belt. The diameter of the first pulley 907 is much smaller than the diameter of the second pulley 908. The servo motor 906 is equipped with an encoder and an electromagnetic brake, making the number of rotations and rotation angle of the motor output shaft controllable and highly accurate. In addition, the servo motor 906 has a self-locking function, which can be set by those skilled in the art according to actual needs, and will not be described in detail here. When it is necessary to flip the middle rod 401, the fourth hydraulic cylinder 901 is activated. The fourth hydraulic cylinder 901 extends, so that the pad 905 on one side contacts the bottom of the middle rod 401, and drives the middle rod 401 to move upward, so that the middle rod 401 contacts the rotation limit module 5. The servo motor 906 is activated, and the servo motor 906 drives the first pulley 907 to rotate, which in turn drives the second pulley 908 to rotate, which in turn drives the rotating shaft 903 to rotate, which in turn drives the placement plate 904 and the pad 905 to rotate, thereby causing the middle rod 401 to flip, realizing the change of welding position and improving the welding efficiency of the device.
[0030] To prevent the middle rod 401 from warping during the flipping process, the rotation limiting module 5 in this invention includes two fixing frames 501 fixed to the inner wall of the top of the frame 1. The top of the fixing frame 501 is provided with multiple sliding holes, and sliding rods 502 are slidably connected in the sliding holes. Pressure plates 505 are welded to the bottom of the multiple sliding rods 502. Springs 503 are fixed between the pressure plates 505 and the fixing frames 501 by bolts. A connecting plate 504 is welded between the two pressure plates 505. When the placement plate 904 moves the middle rod 401 upward, the middle rod 401 contacts the pressure plate 505. During the upward movement of the middle rod 401, the middle rod 401 compresses the spring 503, which has elastic force, thereby limiting the middle rod 401 and preventing it from warping. During the rotation of the placement plate 904 driven by the servo motor 906, the flipping of the middle rod 401 will continue to compress the pressure plate 505, causing the spring 503 to be further compressed. This ensures that the pressure plate 505 remains in contact with the middle rod 401 during the flipping process, preventing the middle rod 401 from warping during rotation and thus improving the stability of the middle rod 401's flipping.
[0031] In order to adjust the position of the middle rod 401 and the upper rod 402 with the flange seat 403 welded on, the pusher and alignment module 12 of the present invention includes a mounting frame 1201 fixed to the top of the frame 1. A fifth hydraulic cylinder 1203 is fixed to one side of the inner wall of the mounting frame 1201 by bolts. A second push plate 1202 is fixed to the movable end of the fifth hydraulic cylinder 1203 by bolts. Activating the fifth hydraulic cylinder 1203 will drive the second push plate 1202 to move, thereby causing the second push plates 1202 on both sides to contact one side of the flange seat 403 and the upper rod 402 respectively, so that one side of the upper rod 402 contacts the inner wall of one side of the frame 1, and at the same time, the middle rod 401 contacts the upper rod 402, so that the middle rod 401 and the upper rod 402 can be welded without manually adjusting the position of the middle rod 401 and the upper rod 402, further improving the welding efficiency of the device. At the same time, a visual sensor can be used to monitor the connection part.
[0032] To correct the angle and position of the upper rod 402, the feeding and positioning module 13 of this invention includes a servo motor 1301 fixed to the inner wall of one side of the mounting frame 1201. The servo motor 1301 is model SC-1256TG. The output shaft of the servo motor 1301 is keyed to a positioning frame 1304. A first limiting block 1302 and a second limiting block 1303 are welded to the outer wall of one side of the mounting frame 1201. The positioning frame 1304 is in contact with the first limiting block 1302. The positioning frame 1304 is a parallelogram, which can avoid the rotation of the upper rod 402 after rotation. The first limiting block 1302 limits the lowest angle of rotation of the positioning frame 1304, and the second limiting block 1303 limits the highest angle of rotation of the positioning frame 1304. This can prevent the positioning frame 1304 from contacting the first conveyor belt 2 and the frame 1, thereby improving the service life of the device. When the upper rod 402 is moved by the first conveyor belt 2, one side of the upper rod 402 will come into contact with the straightening frame 1304, so that one side of the upper rod 402 is completely in contact with one side of the straightening frame 1304, thus completing the position limitation and angle correction of the upper rod 402. After the upper rod 402 and the middle rod 401 are welded at the current position, the servo motor 1301 is started. The servo motor 1301 will drive the straightening frame 1304 to rotate, thereby causing the straightening frame 1304 to disengage from the upper rod 402, and then the upper rod 402 can be flipped, further improving the welding quality of the device.
[0033] To weld the flange seat 403, the middle rod 401, and the upper rod 402, the plasma welding module 6 of this invention includes a first hydraulic cylinder 601 fixed to the top outer wall of the frame 1. The movable end of the first hydraulic cylinder 601 is bolted to a mounting plate 602. Both ends of the bottom of the mounting plate 602 are bolted to fixing seats 603. An L-shaped frame 604, which can be bolted, is rotatably connected to the bottom of the fixing seat 603. A clamp 606, which can be bolted, is rotatably connected to one side of the L-shaped frame 604. The center of part 6 is fixed with a plasma welding gun 605 by bolts. The plasma welding gun 605 is the actuator of the plasma welding equipment. When the high voltage power supply applies voltage between the tungsten electrode (negative electrode) and the workpiece or nozzle (positive electrode), the working gas (such as argon) is ionized to form a plasma composed of free electrons and positive ions. After ionization, the arc resistance decreases and the current increases, forming a stable arc. The high temperature of the plasma arc causes the workpiece to melt rapidly in a local area, forming a molten pool, thereby completing the welding. Those skilled in the art can set it according to actual needs, which will not be elaborated here. When welding is required, the first hydraulic cylinder 601 is activated. The extension of the first hydraulic cylinder 601 will drive the plasma welding gun 605 to move downward, so that the plasma welding gun 605 moves to the lowest point of the connection. Voltage is applied between the tungsten electrode and the nozzle of the plasma welding gun 605 to form a plasma arc. At the same time, the first hydraulic cylinder 601 retracts, thereby welding the connection. Welding can be performed on both sides at the same time, further improving the welding efficiency of the device.
[0034] In order to position and rotate the flange seat 403, the feeding positioning module 7 of the present invention includes a second hydraulic cylinder 701 fixed to the inner wall of the bottom of the frame 1. The movable end of the second hydraulic cylinder 701 is fixed with a positioning frame 702 by bolts. The middle layer of the frame 1 is provided with a clearance opening 703, and the positioning frame 702 passes through the clearance opening 703. The top of the positioning frame 702 is provided with a positioning groove 709. The top of the positioning groove 709 on multiple sides is a slope 708. The slope 708 allows the flange seat 403 to be easily placed into the positioning groove 709. A limit plate 707 is welded to one side of the frame 1, and the limit plate 707 is located in the positioning groove 709. A baffle 704 is fixed to one side of the frame 1 by bolts. When placing the flange seat 403, the flange seat 403 is placed in the positioning groove 709, so that the bottom of the flange seat 403 contacts the limiting plate 707. The positioning groove 709, together with the frame 1 and the baffle 704, forms a positioning hole that is closed on all sides and has a supporting function, thereby limiting the position of the flange seat 403. After the flange seat 403 is welded or fully welded to both sides of the middle rod 401, the second hydraulic cylinder 701 is activated. The second hydraulic cylinder 701 retracts, causing the positioning frame 702 to move in the clearance port 703, thereby causing the flange seat 403 to disengage from the positioning frame 702. At this time, the flange seat 403 loses its limiting position and is fixed by the middle rod 401. Therefore, when the middle rod 401 is flipped, the flange seat 403 can flip along with it, thus avoiding the rotation of the flange seat 403 and improving the smoothness of the device operation. One side of the frame 1 is provided with a resistance reduction component to reduce the rotational resistance of the flange seat 403. The resistance reduction component includes multiple mounting slots 706 opened on one side of the baffle 704, and ball bearings 705 are placed in the mounting slots 706. The ball bearing 705 will contact the flange seat 403, thereby reducing the friction between the flange seat 403 and the baffle 704, reducing the resistance when the flange seat 403 rotates, further reducing the probability of warping when the middle rod 401 and the flange seat 403 flip, thereby further improving the stability of the middle rod 401 flipping.
[0035] To adjust the position of the middle rod 401 that is not welded to the flange seat 403, the push contact module 8 in this invention includes a third hydraulic cylinder 801 fixed to the inner wall of the top of the frame 1. The moving end of the third hydraulic cylinder 801 passes through the frame 1 and is fixed to a first push plate 803 by bolts. Two guide rods 802 are fixed to one side of the first push plate 803 by bolts, and the two guide rods 802 are slidably connected to the frame 1. The guide rods 802 reinforce the first push plate 803, so that the two guide rods 802 and the moving end of the third hydraulic cylinder 801 form a stable triangle, thereby improving the stability of the horizontal movement of the first push plate 803. One end of the middle layer of the frame 1 is fixed to a positioning plate 10 by bolts. The positioning plate 10 can limit the position of the middle rod 401 placed on the second conveyor belt 3, so that the initial placement position of the middle rod 401 will not contact the first push plate 803. When welding is required between the middle rod 401 and the flange seat 403, the third hydraulic cylinder 801 is activated. The third hydraulic cylinder 801 extends, causing the first push plate 803 to contact the middle rod 401. The third hydraulic cylinder 801 continues to extend, causing the first push plate 803 to push the middle rod 401 to move, thereby causing the middle rod 401 to contact the flange seat 403 or causing the displaced flange seat 403 to contact the ball bearing 705. This ensures that the welding position does not change, thus avoiding unnecessary damage to the plasma welding torch 605 due to position changes and improving the protection effect on the plasma welding torch 605.
[0036] It should be noted that the first hydraulic cylinder 601, the second hydraulic cylinder 701, the third hydraulic cylinder 801, the fourth hydraulic cylinder 901, and the fifth hydraulic cylinder 1203 are all actuators in the hydraulic system. They achieve the telescopic function by cooperating with the hydraulic system, and achieve precise control of the telescopic displacement of the hydraulic cylinder piston rod by cooperating with magnetic switches, proximity switches, or photoelectric switches. Those skilled in the art can set them according to actual needs. The specific steps for welding the main body 4 of the light pole are as follows: S1: First, place multiple middle rods 401 on two second conveyor belts 3, place multiple upper rods 402 on the first conveyor belt 2, and place the flange seat 403 in the positioning groove 709; S2: The second conveyor belt 3 moves multiple middle rods 401, so that the foremost middle rod 401 comes into contact with the pad 905 in the foremost flipping module 9, blocking the middle rod 401. The second conveyor belt 3 continues to move the middle rod 401, which will cause the middle rod 401 to squeeze the pad 905, thereby adjusting the angle of the pad 905 to the middle rod 401, so that one side of the middle rod 401 is in complete contact with the pad 905. S3: Activate the fourth hydraulic cylinder 901. The fourth hydraulic cylinder 901 extends, thereby causing the pad 905 on one side to contact the bottom of the middle rod 401, and driving the middle rod 401 to move upward, so that the middle rod 401 contacts the spinning plate 505. S4: Start the servo motor 906. The servo motor 906 drives the first pulley 907 to rotate, which in turn drives the second pulley 908 to rotate, which in turn drives the rotating shaft 903 to rotate, which in turn drives the placement plate 904 and the pad plate 905 to rotate, which in turn drives the middle rod 401 to flip. S5: When the placement plate 904 drives the middle rod 401 to move upward, the middle rod 401 contacts the pressure plate 505. During the upward movement of the middle rod 401, the middle rod 401 will squeeze the spring 503 to contract and have elastic force, thereby limiting the middle rod 401 and preventing the middle rod 401 from warping. S6: During the rotation of the placement plate 904 driven by the servo motor 906, the flipping of the middle rod 401 will continue to squeeze the pressure plate 505, causing the spring 503 to continue to be compressed, so that the pressure plate 505 will continue to be in contact with the pressure plate 505 during the flipping of the middle rod 401, thus preventing the middle rod 401 from warping during the rotation. S7: The second conveyor belt 3 drives the foremost middle rod 401 to move and contact the pad 905 in the second flipping module 9, so that one side of the middle rod 401 is in complete contact with the pad 905. S8: Start the third hydraulic cylinder 801. The third hydraulic cylinder 801 extends, so that the first push plate 803 contacts the middle rod 401. The third hydraulic cylinder 801 continues to extend, so that the first push plate 803 pushes the middle rod 401 to move, so that the middle rod 401 contacts the flange seat 403. S9: Start the first hydraulic cylinder 601. The extension of the first hydraulic cylinder 601 will drive the plasma welding gun 605 to move downward, so that the plasma welding gun 605 moves to the lowest point of the connection. Apply voltage between the tungsten electrode and the nozzle of the plasma welding gun 605 to form a plasma arc. At the same time, the first hydraulic cylinder 601 retracts, thereby welding the connection and completing the welding of the center rod 401 and the flange seat 403 on both sides. S10: Start the servo motor 906. The servo motor 906 drives the first pulley 907 to rotate, which in turn drives the second pulley 908 to rotate, which in turn drives the rotating shaft 903 to rotate, which in turn drives the placement plate 904 and the pad plate 905 to rotate, which in turn drives the middle rod 401 to flip, and thus the middle rod 401 rotates 90°. S11: The second conveyor belt 3 drives the foremost middle rod 401 to move and contact the pad 905 in the third flipping module 9, so that one side of the middle rod 401 is in complete contact with the pad 905. S12: Start the third hydraulic cylinder 801. The third hydraulic cylinder 801 extends, so that the first push plate 803 contacts the middle rod 401. The third hydraulic cylinder 801 continues to extend, so that the first push plate 803 pushes the middle rod 401 to move, so that the flange seat 403 contacts the ball 705. S13: Weld the remaining unwelded parts on both sides of the central rod 401 and the flange seat 403 again by means of the cooperation of the first hydraulic cylinder 601 and the plasma welding gun 605; S14: After welding, the middle rod 401 is rotated 90° again by the cooperation of the rotating shaft 903 and the placement plate 904, and the second conveyor belt 3 is used to drive the middle rod 401 to contact the pad 905 in the fourth flipping module 9, so that one side of the middle rod 401 is in complete contact with the pad 905. S15: During the operation of the second conveyor belt 3, the first conveyor belt 2 will drive the upper rod 402 to move and make the upper rod 402 contact with the straightening frame 1304, so that one side of the upper rod 402 is completely in contact with one side of the straightening frame 1304, thereby completing the position limitation and angle correction of the upper rod 402. S16: Start the fifth hydraulic cylinder 1203. The fifth hydraulic cylinder 1203 will drive the second push plate 1202 to move, so that the second push plates 1202 on both sides will contact one side of the flange seat 403 and the upper rod 402 respectively, so that one side of the upper rod 402 will contact the inner wall of one side of the frame 1, and at the same time, the middle rod 401 will contact the upper rod 402. S17: Welding is performed on both sides of the middle rod 401 and the upper rod 402 by means of the cooperation of the first hydraulic cylinder 601 and the plasma welding gun 605. S18: After welding is completed, start the servo motor 1301. The servo motor 1301 will drive the straightening frame 1304 to rotate, thereby causing the straightening frame 1304 to disengage from the upper rod 402, and then the upper rod 402 can be flipped. The middle rod 401 is flipped 90° again through the cooperation of the rotating shaft 903 and the placement plate 904. The second conveyor belt 3 is used to drive the middle rod 401 to contact the pad 905 in the fourth flipping module 9, so that one side of the middle rod 401 is in complete contact with the pad 905. S19: Through the cooperation of the fifth hydraulic cylinder 1203 and the second push plate 1202, the upper pole 402 comes into contact with the frame 1. Then, through the cooperation of the first hydraulic cylinder 601 and the plasma welding gun 605, the unwelded sides of the middle pole 401 and the upper pole 402 are welded, thereby completing the welding of the lamp post body 4. S20: After welding is completed, the middle pole body 401 is rotated 90° by the cooperation of the rotating shaft 903 and the placement plate 904, so that the lamp pole body 4 after welding is removed from the welding station and the lamp pole body 4 can be moved. S21: During the entire welding process, an external fan will be used to cool each welding station. At the same time, the plasma welding torch 605 itself is water-cooled to prevent the welding area from overheating and being damaged by the plasma welding torch 605.
[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0038] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.
Claims
1. A plasma welding device for processing square indicator light poles, comprising a frame (1) and a pole body (4), the pole body (4) comprising a middle pole (401), an upper pole (402) and a flange seat (403), characterized in that, The top of the frame (1) is provided with a loading and positioning module (7) for positioning and rotating the flange seat (403). The top of the frame (1) is provided with a first conveyor belt (2) and two second conveyor belts (3). The first conveyor belt (2) is used to transport the upper rod (402), and the second conveyor belts (3) are used to transport the middle rod (401). A flipping module (9) is provided between the two second conveyor belts (3) to drive the middle rod (401) to flip and to correct the angle of the middle rod (401). A rotation limiting module (5) is provided above the two second conveyor belts (3) to flip and press down the middle rod (401). The top of the frame (1) is provided with a push contact module (8) for adjusting the position of the middle rod (401) which is not welded to the flange seat (403). The top two ends of the frame (1) are provided with push correction modules (12) for adjusting the position of the middle rod (401) and the upper rod (402) which are welded to the flange seat (403). One side of the push correction module (12) is provided with a feeding correction module (13) for correcting the angle and positioning of the upper rod (402). The top of the frame (1) is provided with a plasma welding module (6) for welding the flange seat (403), the middle rod (401) and the upper rod (402).
2. The plasma welding device for processing square indicator light poles according to claim 1, characterized in that, The flipping module (9) includes a fourth hydraulic cylinder (901) fixed to the inner wall of the bottom of the frame (1). The movable end of the fourth hydraulic cylinder (901) is fixedly connected to a slide (902). A rotating shaft (903) is rotatably connected between the inner walls of the two sides of the slide (902). Multiple evenly distributed placement plates (904) are fixedly connected to the outer circumference of the rotating shaft (903). Pads (905) are fixedly connected to both sides of the placement plates (904). A servo motor (906) is fixedly connected to one side of the slide (902). The output shaft of the servo motor (906) is keyed to a first pulley (907). A second pulley (908) is keyed to one end of the rotating shaft (903). The first pulley (907) and the second pulley (908) are driven by a belt.
3. The plasma welding device for processing square indicator light poles according to claim 1, characterized in that, The rotation limiting module (5) includes two fixed frames (501) fixed to the inner wall of the top of the frame (1). The top of the fixed frame (501) is provided with multiple sliding holes, and a sliding rod (502) is slidably connected in the sliding holes. A pressure plate (505) is welded to the bottom of the multiple sliding rods (502). A spring (503) is fixedly connected between the pressure plate (505) and the fixed frame (501). A connecting plate (504) is welded between the two pressure plates (505).
4. The plasma welding device for processing square indicator light poles according to claim 1, characterized in that, The material pushing and positioning module (12) includes a mounting frame (1201) fixed on the top of the frame (1). A fifth hydraulic cylinder (1203) is fixedly connected to the inner wall of one side of the mounting frame (1201). A second push plate (1202) is fixedly connected to the movable end of the fifth hydraulic cylinder (1203).
5. The plasma welding device for processing square indicator light poles according to claim 4, characterized in that, The feeding and positioning module (13) includes a servo motor (1301) fixed on the inner wall of one side of the mounting frame (1201). The output shaft of the servo motor (1301) is keyed to the positioning frame (1304). A first limiting block (1302) and a second limiting block (1303) are welded to the outer wall of one side of the mounting frame (1201), and the positioning frame (1304) is in contact with the first limiting block (1302).
6. The plasma welding device for processing square indicator light poles according to claim 1, characterized in that, The plasma welding module (6) includes a first hydraulic cylinder (601) fixed to the top outer wall of the frame (1). The movable end of the first hydraulic cylinder (601) is fixedly connected to a mounting plate (602). Both ends of the bottom of the mounting plate (602) are fixedly connected to a fixing seat (603). The bottom of the fixing seat (603) is rotatably connected to an L-shaped frame (604). One side of the L-shaped frame (604) is rotatably connected to a clamp (606). The center of the clamp (606) is fixedly connected to a plasma welding gun (605).
7. The plasma welding device for processing square indicator light poles according to claim 1, characterized in that, The loading and positioning module (7) includes a second hydraulic cylinder (701) fixed to the inner wall of the bottom of the frame (1). The movable end of the second hydraulic cylinder (701) is fixedly connected to a positioning frame (702). The middle layer of the frame (1) is provided with a clearance opening (703), and the positioning frame (702) passes through the clearance opening (703). The top of the positioning frame (702) is provided with a positioning groove (709). The top of the positioning groove (709) on multiple sides is a slope (708). A limiting plate (707) is welded to one side of the frame (1), and the limiting plate (707) is located in the positioning groove (709). A baffle (704) is fixedly connected to one side of the frame (1). A resistance-reducing component is provided on one side of the frame (1) to reduce the rotational resistance of the flange seat (403).
8. The plasma welding apparatus for processing square indicator light poles according to claim 7, characterized in that, The drag reduction assembly includes multiple mounting slots (706) formed on one side of the baffle (704), and ball bearings (705) are placed in the mounting slots (706).
9. The plasma welding device for processing square indicator light poles according to claim 1, characterized in that, The push contact module (8) includes a third hydraulic cylinder (801) fixed to the inner wall of the top of the frame (1). The moving end of the third hydraulic cylinder (801) passes through the frame (1) and is fixedly connected to a first push plate (803). Two guide rods (802) are fixedly connected to one side of the first push plate (803), and the two guide rods (802) are slidably connected to the frame (1).
10. The plasma welding apparatus for processing square indicator light poles according to claim 1, characterized in that, A connecting shaft (11) is fixedly connected between the pulleys at both ends of the two second conveyor belts (3), and a positioning plate (10) is fixedly connected to one end of the middle layer of the frame (1).