A round tube and sleeve welding production line feeding structure

Abstract

The utility model relates to round tube and shaft sleeve welding technical field, specifically speaking, a kind of round tube and shaft sleeve welding production line feeding structure, it includes conveying line, conveying line is provided with multiple, and adjacent two conveying lines are connected through material turnover subassembly between;Conveying line includes crossbeam and transmission component, and transmission component includes multiple roller wheel with the rotary connection of crossbeam;Material turnover subassembly includes multiple first air cylinder, crossbeam and longitudinal frame, multiple first air cylinder is respectively arranged on two conveying lines, and the both ends of part crossbeam are connected with the output shaft of first air cylinder, multiple longitudinal frames are respectively arranged on the both ends of crossbeam, and longitudinal frame is connected with multiple crossbeam;Through above technical scheme, the utility model solves the problem that round tube is fed between multiple equipment, time-consuming and labor-intensive influence round tube and the welding efficiency of shaft sleeve.

Description

Technical Field

[0001] This utility model relates to the field of round tube and bushing welding technology, specifically a feeding structure for a round tube and bushing welding production line. Background Technology

[0002] In mechanical devices, the circular tube and the bushing often require a precise relative position. Welding can securely fix the circular tube to the bushing, ensuring that they do not shift relative to each other during operation, thereby maintaining the stability and precision of the mechanical structure.

[0003] In the production line for welding round tubes and bushings, the round tubes need to be beveled and chip removed before being assembled and welded with the bushings. The round tubes need to be transported to different equipment for processing. Currently, electric trolleys are usually used to load and unload the round tubes between multiple machines. Loading and unloading the round tubes is time-consuming and labor-intensive, which affects the welding efficiency of the round tubes and bushings. Utility Model Content

[0004] In order to solve the problems in related technologies, this utility model provides a feeding structure for a round tube and bushing welding production line. This device solves the problem that loading and unloading round tubes between multiple devices is time-consuming and labor-intensive, affecting the welding efficiency of round tubes and bushings.

[0005] To solve the above problems, the following technical solutions are provided: This utility model discloses a feeding structure for a circular tube and bushing welding production line, comprising: The conveyor line is provided in multiple ways, and adjacent conveyor lines are connected by a material turning assembly; The conveyor line includes a crossbeam and a transmission assembly, the transmission assembly including a plurality of rollers rotatably connected to the crossbeam; The material turning assembly includes multiple first cylinders, a horizontal frame, and a vertical frame. The multiple first cylinders are respectively located on two conveyor lines. The two ends of a portion of the horizontal frame are connected to the output shaft of the first cylinder. The multiple vertical frames are respectively located at the two ends of the horizontal frame, and the vertical frame is connected to the multiple horizontal frames.

[0006] The above solution uses a material-turning assembly with multiple parallel conveyor lines arranged along the width of the crossbeams. The rollers are hourglass-shaped, and the round tube is placed in the central recess of the roller. The roller rotates, moving the round tube. The ends of the roller prevent the round tube from falling. Multiple horizontal and vertical frames form a grid pattern. The horizontal frames connect adjacent crossbeams via a first cylinder. Different equipment can be connected to the ends of the multiple conveyor lines. After the round tube is processed on one conveyor line, the first cylinder on that line pushes one end of the horizontal frame upwards, making the end of the horizontal frame higher than the height of the roller, thus lifting the round tube. Because the end of the horizontal frame is raised, i.e., the horizontal frame tilts, the round tube falls from the horizontal frame. The tube slides from a high position to a low position on the frame. The first cylinder at the lower position pushes the other end of the crossbeam to descend, thus placing the round tube on the adjacent conveyor line. The first cylinder pushes a crossbeam to move vertically. Since the crossbeam and the longitudinal frame are connected, the longitudinal frame is driven to move vertically. The longitudinal frame drives the remaining crossbeams to move vertically. Multiple crossbeams and longitudinal frames move synchronously, ensuring the stability of the round tube rolling from one conveyor line to another. The tilting of the crossbeam completes the conveying of the round tube to different equipment. There is no need for electric trolleys or hoisting to reload and unload the tube, saving the round tube feeding time, reducing the space of the round tube feeding equipment, and improving the round tube welding efficiency.

[0007] Furthermore, multiple crossbeams are arranged sequentially along the length of the crossbeam, with the ends of the crossbeams located between two adjacent rollers, and each crossbeam has an upward hook at its end. The first cylinder drives the crossbeams to move vertically. Multiple longitudinal frames are arranged sequentially along the width direction of the crossbeam. There are two longitudinal frames, one of which is connected at the top to the bottom of the multiple crossbeams, and the other of which is connected at the bottom to the top of the multiple crossbeams.

[0008] The above scheme uses horizontal and vertical frames. Multiple horizontal frames support the round tube, ensuring the stability of the round tube turning. Both ends of the horizontal frames are located at rollers, thus conveying the round tube onto the rollers. When the round tube rolls on the horizontal frames, it is stopped by a hook at the end, preventing it from slipping off the horizontal frames and allowing it to reach the rollers. The vertical frames are connected to the horizontal frames. The first cylinder pushes part of the horizontal frames to tilt, and the vertical frames follow this part of the horizontal frames, thereby causing the remaining horizontal frames to tilt synchronously with this part of the horizontal frames, so that the round tube rolls from one conveyor line to another.

[0009] Furthermore, the transmission assembly also includes multiple vertical plates whose bottom ends are connected to the side wall of the crossbeam. The multiple vertical plates are arranged sequentially along the length direction of the crossbeam, and the top ends of the vertical plates are rotatably connected to the rollers through a first rotating shaft. Multiple upper sprockets are provided at the end of the first rotating shaft after it passes through the vertical plate.

[0010] The rollers are mounted on the vertical plate. The round tube is placed on the rollers, and the rollers rotate, which drives the round tube to move along the length of the crossbeam. By driving the upper sprocket to rotate, the first rotating shaft and the rollers are driven to rotate, so that the round tube can be transported into the equipment for processing.

[0011] Furthermore, a second rotating shaft and a tensioning wheel are sequentially arranged in the middle of the vertical plate, and the tensioning wheel is installed on the second rotating shaft by a nut.

[0012] The above solution utilizes the tensioning wheel, a crucial component in mechanical transmission systems used to adjust belt or chain tension. Its core function is to ensure stable operation of the transmission system, reduce wear, and extend service life. The tension of the tensioning wheel can be changed by rotating the nut. The principle is that the rotation of the nut moves the tensioning wheel or its supporting structure, thereby adjusting the belt or chain tension. Rotating the nut pushes the tensioning wheel away from the belt, increasing belt tension; rotating the nut pulls the tensioning wheel closer to the belt, decreasing belt tension. By adjusting the position of the tensioning wheel, the chain maintains appropriate tension, ensuring stable operation of the transmission system.

[0013] Furthermore, a third rotating shaft is rotatably provided at the bottom end of the vertical plate, and multiple lower sprockets are provided on the third rotating shaft. The lower sprockets are connected to the upper sprocket and the tensioning wheel via a chain.

[0014] The above scheme uses a lower sprocket, which is connected to the upper sprocket and tension wheel. The lower sprocket rotates, which in turn drives the upper sprocket to rotate, which in turn drives the roller to rotate, thus realizing the transportation of the round tube. The tension wheel provides appropriate tension to the lower and upper sprockets to ensure the stability of the transmission connection. It should be noted that the upper sprocket, lower sprocket and tension wheel on each vertical plate are connected to form a transmission system.

[0015] Furthermore, a speed reducer is provided on the crossbeam, and the output shaft of the speed reducer is connected to a drive sprocket. The drive sprocket is connected to the lower sprocket via a chain.

[0016] The above scheme uses a speed reducer to drive the drive sprocket. The drive sprocket is connected to the lower sprocket via a chain, thus driving the lower sprocket to rotate. It should be noted that there are multiple upper and lower sprockets. One lower sprocket is connected to the upper sprocket, another lower sprocket is connected to the drive sprocket, and the drive sprocket is connected to the lower sprockets of all the vertical plates. The drive sprocket drives the lower sprockets to rotate, which in turn drives the third shaft to rotate. The third shaft drives the remaining lower sprockets to rotate. The lower sprockets are also connected to the upper sprockets, thus driving the upper sprockets to rotate, which in turn drives the rollers to rotate, realizing the conveying of the circular tube.

[0017] Furthermore, the crossbeam is provided with a plurality of second cylinders along its length. The second cylinders are connected to the vertical plate. The output shaft of the second cylinder is connected to a connecting plate. Both sides of the connecting plate are provided with rubber-coated bearings. The second cylinder drives the connecting plate to move in the vertical direction.

[0018] The above solution utilizes a second cylinder. The top of the connecting plate is V-shaped, and there is a gap between the two rubber-coated bearings. The second cylinder drives the connecting plate to move vertically, thereby lifting the round tube. The round tube is positioned within the recess of the connecting plate, preventing it from slipping to the sides. The connecting plate supports the round tube and adjusts its position and height. The rubber-coated bearing consists of a metal bearing outer ring coated with a layer of polyurethane, rubber, POM, or nylon. The outer ring uses the rubber layer to reduce vibration, noise, and provide protection. Compared to ordinary bearings, it allows the equipment to operate more quietly and smoothly, and also protects the workpiece surface from scratches, making it easier to protect the round tube from scratches during welding. It should be noted that the output shaft of the second cylinder can also be connected to a baffle, which is used to prevent the round tube from entering the equipment.

[0019] Furthermore, it also includes a base plate, the two ends of which are connected to the bottom end of the crossbeam via a lift, and a steering mechanism is provided in the middle of the base plate, which is connected to the lift via a drive shaft.

[0020] The above solution uses a lift to move the conveyor line vertically, thereby adjusting the height of the circular tube to match different equipment. The steering gear drives the drive shaft to rotate in different directions, thereby driving the lift to lift. Both the lift and the steering gear are conventional technologies in this field.

[0021] The above solution has the following advantages: The feeding structure of this utility model's round tube and bushing welding production line includes multiple conveyor lines and a turning assembly. Each conveyor line includes a crossbeam and a transmission assembly. The round tube is placed on rollers, and a reducer drives a drive sprocket to rotate. The drive sprocket is connected to a lower sprocket via a chain, thus driving the lower sprocket to rotate, which in turn drives a third rotating shaft. The third rotating shaft drives the remaining lower sprockets to rotate. The lower sprockets are also connected to an upper sprocket, thus driving the upper sprocket to rotate, which in turn drives the rollers to rotate. The round tube is transported on the rollers into the equipment connected to the conveyor lines for processing. After processing, the drive sprocket reverses, causing all the round tubes to retract onto the rollers. A first cylinder pushes a horizontal frame to move vertically. Because the horizontal frame and the vertical frame are connected, the vertical frame is moved vertically. The longitudinal frame moves upward, causing the other transverse frames to move vertically. The first cylinder on the conveyor line pushes one end of the transverse frame upward, making the height of the transverse frame end higher than the height of the roller, thus lifting the round tube. As the transverse frame end rises, i.e., the transverse frame tilts, the round tube slides from the high point to the low point on the transverse frame. The first cylinder at the low point pushes the other end of the transverse frame downward, thus placing the round tube on the adjacent conveyor line. The rollers on the adjacent conveyor line rotate, driving the round tube to be transported. Multiple transverse and longitudinal frames move synchronously, ensuring the stability of the round tube rolling from one conveyor line to another. The tilting of the transverse frame completes the transport of the round tube to different equipment, eliminating the need for electric trolleys or hoisting for reloading and unloading, saving round tube feeding time, reducing the space required for round tube feeding equipment, and improving round tube welding efficiency. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein: Figure 1 This is a schematic diagram of a feeding structure for a production line for welding round tubes and bushings. Figure 2 This is a schematic diagram of the material turning assembly; Figure 3 This is a schematic diagram of the transmission assembly. Figure 4 for Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the roller structure; Figure 6 for Figure 5 The left view; Figure 7 This is a schematic diagram of the base plate.

[0023] Explanation of reference numerals in the attached drawings: 1. Crossbeam; 11. Reducer; 12. Drive sprocket; 2. Transmission assembly; 21. Vertical plate; 22. Roller; 221. First shaft; 222. Upper sprocket; 23. Second shaft; 231. Tensioner; 232. Nut; 24. Third shaft; 241. Lower sprocket; 3. Tilting assembly; 31. First cylinder; 32. Horizontal frame; 33. Vertical frame; 34. Hook; 4. Base plate; 41. Elevator; 42. Steering gear; 43. Drive shaft; 5. Second cylinder; 51. Connecting plate; 52. Rubber-coated bearing; 6. Conveyor line. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-5 As shown, the present invention discloses a feeding structure for a round tube and bushing welding production line, comprising: a conveyor line 6, wherein multiple conveyor lines 6 are provided, each conveyor line 6 including a crossbeam 1 and a transmission assembly 2, the transmission assembly 2 driving the round tube to move on the conveyor line 6, the multiple conveyor lines 6 being parallel and arranged along the width direction of the crossbeam 1, and adjacent two conveyor lines 6 being connected by a turning assembly 3, the turning assembly 3 being used to transport the round tube from one conveyor line 6 to another conveyor line 6.

[0026] The transmission assembly 2 includes multiple vertical plates 21 whose bottom ends are connected to the side wall of the crossbeam 1 and multiple rollers 22 that are rotatably connected to the crossbeam 1. The multiple vertical plates 21 are arranged sequentially along the length direction of the crossbeam 1. The top end of the vertical plate 21 is rotatably connected to the rollers 22 through a first rotating shaft 221. Multiple upper sprockets 222 are provided at the end of the first rotating shaft 221 after passing through the vertical plate 21.

[0027] like Figure 4 As shown, roller 22 is hourglass-shaped. The round tube is placed in the middle recess of roller 22. Roller 22 rotates, thereby moving the round tube. The two ends of roller 22 prevent the round tube from falling off. Roller 22 is installed on vertical plate 21. The round tube is placed on roller 22. Roller 22 rotates, thereby moving the round tube along the length of crossbeam 1. By driving the upper sprocket 222 to rotate, the first rotating shaft 221 and roller 22 are driven to rotate, so as to transport the round tube into the equipment for processing.

[0028] In this embodiment, a second rotating shaft 23 and a tensioning wheel 231 are sequentially arranged in the middle of the vertical plate 21. The tensioning wheel 231 is mounted on the second rotating shaft 23 via a nut 232. The tensioning wheel 231 is an important component in the mechanical transmission system used to adjust the tension of the belt or chain. Its core function is to ensure the stable operation of the transmission system, reduce wear, and extend its service life. The tension of the tensioning wheel 231 can be changed by rotating the nut 232. The principle is that the rotation of the nut 232 drives the tensioning wheel 231 or its supporting structure to move, thereby adjusting the tightness of the belt or chain. Rotating the nut 232 pushes the tensioning wheel 231 away from the belt, increasing the belt tension. Rotating the nut 232 pulls the tensioning wheel 231 closer to the belt, decreasing the belt tension. By adjusting the position of the tensioning wheel 231, the chain maintains appropriate tension, ensuring the stable operation of the transmission system.

[0029] like Figure 5 and Figure 6 As shown, a third rotating shaft 24 is rotatably mounted at the bottom of the vertical plate 21. Multiple lower sprockets 241 are mounted on the third rotating shaft 24. The lower sprockets 241 are connected to the upper sprocket 222 and the tension wheel 231 via chains. The lower sprockets 241, in turn, drive the upper sprocket 222 to rotate, which in turn drives the roller 22 to rotate, thus transporting the circular tube. The tension wheel 231 provides appropriate tension to the lower sprockets 241 and the upper sprocket 222, ensuring the stability of the transmission connection. It should be noted that the upper sprocket 222, lower sprocket 241, and tension wheel 231 on each vertical plate 21 form a transmission system.

[0030] In this embodiment, a reducer 11 is installed on the crossbeam 1. The output shaft of the reducer 11 is connected to a drive sprocket 12. The drive sprocket 12 is connected to the lower sprocket 241 via a chain. The reducer 11 drives the drive sprocket 12 to rotate. The drive sprocket 12 is connected to the lower sprocket 241 via a chain, thereby driving the lower sprocket 241 to rotate. It should be noted that there are multiple upper sprockets 222 and lower sprockets 241. One lower sprocket 241 is connected to the upper sprocket 222, and another lower sprocket 241 is connected to the drive sprocket 12. The drive sprocket 12 is connected to the lower sprockets 241 of all the vertical plates 21. The drive sprocket 12 drives the lower sprockets 241 to rotate, thereby driving the third rotating shaft 24 to rotate. The third rotating shaft 24 drives the remaining lower sprockets 241 to rotate. The lower sprockets 241 are also connected to the upper sprockets 222, thereby driving the upper sprockets 222 to rotate, and then driving the roller 22 to rotate, realizing the conveying of the circular tube.

[0031] like Figure 2As shown, the material turning assembly 3 includes multiple first cylinders 31, a crossbeam 32, and a longitudinal frame 33. The multiple first cylinders 31 are respectively located on two conveyor lines 6. The two ends of some crossbeams 32 are connected to the output shaft of the first cylinders 31. The multiple longitudinal frames 33 are respectively located at both ends of the crossbeams 32, and the longitudinal frames 33 are connected to the multiple crossbeams 32. The multiple crossbeams 32 are arranged sequentially along the length direction of the crossbeam 1. The ends of the crossbeams 32 are located between two adjacent rollers 22. The ends of the crossbeams 32 are provided with upward hooks 34. The first cylinders 31 drive the crossbeams 32 to move in the vertical direction.

[0032] In this embodiment, multiple horizontal frames 32 and vertical frames 33 form a grid pattern. The horizontal frames 32 connect two adjacent horizontal beams 1 through the first cylinder 31. The two ends of multiple conveyor lines 6 can be connected to different equipment respectively. After the round tube is processed on a conveyor line 6, the first cylinder 31 on the conveyor line 6 pushes one end of the horizontal frame 32 to rise, so that the height of the end of the horizontal frame 32 is higher than the height of the roller 22, thereby lifting the round tube. As the end of the horizontal frame 32 rises, that is, the horizontal frame 32 tilts, the round tube slides from the high point to the low point on the horizontal frame 32. The first cylinder 31 at the low point pushes the other end of the horizontal frame 32 to descend, thereby placing the round tube on the adjacent conveyor line 6. When the round tube rolls on the horizontal frame 32, it rolls until the end is blocked by the hook 34, stopping further movement and preventing the round tube from slipping off the horizontal frame 32, so that the round tube can reach the roller 22.

[0033] In this embodiment, multiple longitudinal frames 33 are arranged sequentially along the width direction of the crossbeam 1. There are two longitudinal frames 33. The top end of one longitudinal frame 33 is connected to the bottom end of multiple cross frames 32, and the bottom end of the other longitudinal frame 33 is connected to the top end of multiple cross frames 32. When the round tube is turned over, the cross frame 32 whose top end is connected to the bottom end of the longitudinal frame 33 is lifted up by the first cylinder 31, and the cross frame 32 whose bottom end is connected to the top end of the longitudinal frame 33 is lowered by the first cylinder 31 to ensure the stability of the cross frame 32 and the longitudinal frame 33. The first cylinder 31 pushes one cross frame 32 to move in the vertical direction. Since the cross frame 32 and the longitudinal frame 33 are connected, the longitudinal frame 33 is driven to move in the vertical direction. The longitudinal frame 33 drives the other cross frames 32 to move in the vertical direction. Multiple cross frames 32 and longitudinal frames 33 move synchronously to ensure the stability of the round tube rolling from one conveyor line 6 to another conveyor line 6.

[0034] In this embodiment, a plurality of second cylinders 5 are arranged along the length of the crossbeam 1. The second cylinders 5 are connected to the vertical plate 21. The output shaft of the second cylinder 5 is connected to a connecting plate 51. Rubber-coated bearings 52 are arranged on both sides of the connecting plate 51. The second cylinders 5 drive the connecting plate 51 to move vertically. The top of the connecting plate 51 is V-shaped. There is a gap between the two rubber-coated bearings 52. The round tube is placed between the two rubber-coated bearings 52. The second cylinders 5 drive the connecting plate 51 to move vertically, thereby lifting the round tube. The round tube is placed between the two rubber-coated bearings 52. The recess prevents the tube from sliding to the sides. The connecting plate 51 is used to support the round tube and adjust its position and height. The rubber-coated bearing 52 is a metal bearing with a layer of polyurethane, rubber, POM or nylon. The outer ring is used to reduce vibration, noise and protect against damage. Compared with ordinary bearings, it can make the equipment run more quietly and smoothly, and can also protect the surface of the workpiece from scratches. It is easy to protect the round tube from scratches during welding. It should be noted that the output shaft of the second cylinder 5 can also be connected to a baffle. The lifting baffle is used to block the round tube from entering the equipment.

[0035] like Figure 7 As shown, it also includes a base plate 4, the two ends of which are connected to the bottom of the crossbeam 1 via a lifting mechanism 41. A steering mechanism 42 is provided in the middle of the base plate 4, and the steering mechanism 42 is connected to the lifting mechanism 41 via a drive shaft 43. When the lifting mechanism 41 is started, it pushes the conveyor line 6 to move in the vertical direction, thereby adjusting the height of the circular tube to match different equipment. The steering mechanism 42 drives the drive shaft 43 to rotate in different directions, thereby driving the lifting mechanism 41 to lift. The lifting mechanism 41 and the steering mechanism 42 are both conventional technologies in the field.

[0036] During operation, the round tube is placed on the roller 22. The reducer 11 drives the drive sprocket 12 to rotate. The drive sprocket 12 is connected to the lower sprocket 241 via a chain, thereby driving the lower sprocket 241 to rotate. There are multiple upper sprockets 222 and lower sprockets 241. One lower sprocket 241 is connected to the upper sprocket 222, and another lower sprocket 241 is connected to the drive sprocket 12. The drive sprocket 12 is also connected to the lower sprockets 241 of all the vertical plates 21. The drive sprocket 12 drives the lower sprockets 241 to rotate, thereby driving the third rotating shaft 24 to rotate. The third rotating shaft 24 drives the remaining lower sprockets 241 to rotate. The lower sprockets 241 are also connected to the upper sprockets 222, thereby driving the upper sprockets 222 to rotate, which in turn drives the roller 22 to rotate, thus realizing the conveying of the round tube.

[0037] After the round tube is processed on a conveyor line 6, the first cylinder 31 on the conveyor line 6 pushes one end of the crossbeam 32 upward, so that the height of the end of the crossbeam 32 is higher than the height of the roller 22, thereby lifting the round tube. Since the crossbeam 32 and the longitudinal frame 33 are connected, the longitudinal frame 33 is driven to move in the vertical direction. The longitudinal frame 33 drives the other crossbeams 32 to move in the vertical direction. Multiple crossbeams 32 and longitudinal frames 33 move synchronously to ensure the stability of the round tube rolling from one conveyor line 6 to another. Since the end of the crossbeam 32 is raised, that is, the crossbeam 32 is tilted, the round tube slides from the high point to the low point on the crossbeam 32. The first cylinder 31 at the low point pushes the other end of the crossbeam 32 downward, so that the round tube is placed on the adjacent conveyor line 6. When the round tube rolls on the crossbeam 32, it is stopped by the hook 34 at the end, preventing the round tube from slipping off the crossbeam 32, so that the round tube can reach the roller 22 and be transported to the next equipment for processing under the action of the roller 22.

[0038] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0039] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A feeding structure for a production line for welding round tubes and bushings, characterized in that, include: Conveyor line (6), multiple conveyor lines (6) are provided, and two adjacent conveyor lines (6) are connected by a material turning assembly (3); The conveyor line (6) includes a crossbeam (1) and a transmission assembly (2), the transmission assembly (2) including a plurality of rollers (22) rotatably connected to the crossbeam (1). The material turning assembly (3) includes multiple first cylinders (31), a cross frame (32) and a longitudinal frame (33). The multiple first cylinders (31) are respectively located on two conveyor lines (6). The two ends of a portion of the cross frame (32) are connected to the output shaft of the first cylinder (31). The multiple longitudinal frames (33) are respectively located at the two ends of the cross frame (32). The longitudinal frames (33) are connected to the multiple cross frames (32).

2. The feeding structure of the round tube and bushing welding production line as described in claim 1, characterized in that, Multiple crossbeams (32) are arranged sequentially along the length of the crossbeam (1). The ends of the crossbeams (32) are located between two adjacent rollers (22). The ends of the crossbeams (32) are provided with upward hooks (34). The first cylinder (31) drives the crossbeams (32) to move in the vertical direction. Multiple longitudinal frames (33) are arranged sequentially along the width direction of the crossbeam (1). There are two longitudinal frames (33). The top end of one longitudinal frame (33) is connected to the bottom end of multiple crossbeams (32), and the bottom end of the other longitudinal frame (33) is connected to the top end of multiple crossbeams (32).

3. The feeding structure of the round tube and bushing welding production line as described in claim 1, characterized in that, The transmission assembly (2) also includes a plurality of vertical plates (21) whose bottom ends are connected to the side wall of the crossbeam (1). The plurality of vertical plates (21) are arranged sequentially along the length direction of the crossbeam (1). The top end of the vertical plate (21) is rotatably connected to the roller (22) through a first rotating shaft (221). Multiple upper sprockets (222) are provided at the end of the first rotating shaft (221) after passing through the vertical plate (21).

4. The feeding structure of the round tube and bushing welding production line as described in claim 3, characterized in that, The middle part of the vertical plate (21) is provided with a second rotating shaft (23) and a tensioning wheel (231), and the tensioning wheel (231) is installed on the second rotating shaft (23) by a nut (232).

5. The feeding structure of the round tube and bushing welding production line as described in claim 4, characterized in that, The bottom end of the vertical plate (21) is rotatably provided with a third rotating shaft (24), and multiple lower sprockets (241) are provided on the third rotating shaft (24). The lower sprockets (241) are connected to the upper sprocket (222) and the tensioning wheel (231) via a chain.

6. The feeding structure of the round tube and bushing welding production line as described in claim 5, characterized in that, A speed reducer (11) is provided on the crossbeam (1), and the output shaft of the speed reducer (11) is connected to a drive sprocket (12). The drive sprocket (12) is connected to the lower sprocket (241) via a chain.

7. The feeding structure of the round tube and bushing welding production line as described in claim 3, characterized in that, The crossbeam (1) is provided with a plurality of second cylinders (5) along its length direction. The second cylinders (5) are connected to the vertical plate (21). The output shaft of the second cylinders (5) is connected to a connecting plate (51). Rubber-coated bearings (52) are provided on both sides of the connecting plate (51). The second cylinders (5) drive the connecting plate (51) to move in the vertical direction.

8. The feeding structure of the round tube and bushing welding production line as described in claim 1, characterized in that, It also includes a base plate (4), the two ends of which are connected to the bottom end of the crossbeam (1) via a lift (41), and a steering gear (42) is provided in the middle of the base plate (4), which is connected to the lift (41) via a drive shaft (43).

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