Automatic welding device for steel bottle

Abstract

The application relates to an automatic steel bottle welding device which comprises a rack, a plurality of welding mechanisms, a conveying mechanism, a feeding mechanism and a transfer mechanism, the welding mechanisms are arranged along the conveying direction of the conveying mechanism; the transfer mechanism comprises a rotating shaft connected to the rack, a plurality of transfer pieces and a transfer driving piece, the transfer piece comprises a plurality of transfer rods arranged along the axis of the rotating shaft, the conveying belts are arranged along the conveying direction of the steel bottles, the transfer rods pass between the adjacent conveying belts, the adjacent transfer pieces simultaneously abut against the outer wall of the steel bottle and drive the steel bottle to rotate, and the adjacent transfer pieces abut against the outer wall of the steel bottle arranged on the supporting block. The two half steel bottles subjected to pre-welding are simultaneously forced by the transfer rods, the two half steel bottles are subjected to the upward force of the transfer rods during movement, and the connecting part of the two half steel bottles is subjected to the force of mutual abutment, so that the force borne by the welding spot of the connecting part of the two half steel bottles is reduced, and deformation of the welding spot is avoided.

Description

Technical Field

[0001] This application relates to the technical field of welding equipment, and in particular to an automatic welding device for steel cylinders. Background Technology

[0002] Gas cylinders are typically used to store high-pressure gases or liquids, therefore, they require high structural strength during production. In production, they are usually made by welding two halves of the cylinder together. The welding process typically involves manual spot welding to join the two halves, followed by full welding at the joint using specialized welding equipment, thus completing the cylinder welding process.

[0003] However, currently, when transferring pre-welded steel cylinders that have undergone spot welding to welding equipment for full welding, a robotic arm is usually used to grasp the cylinder and transfer it to the welding equipment. However, when the robotic arm grasps the cylinder, it is difficult to apply force to both halves of the cylinder at the joint. As a result, the weld point between the two halves of the cylinder is prone to deformation during the movement of the two halves, which affects the coaxiality between the two halves of the cylinder and the final processing quality.

[0004] Therefore, a new technical solution is needed to address the above problems. Summary of the Invention

[0005] In order to prevent deformation at the weld joints of pre-welded cylinders when transferring them to welding equipment, this application provides an automatic cylinder welding device.

[0006] This application provides an automatic welding device for steel cylinders, which adopts the following technical solution:

[0007] An automatic cylinder welding device includes a frame, a plurality of welding mechanisms for welding cylinders, a conveying mechanism for conveying cylinders, a feeding mechanism for moving cylinders onto the welding mechanisms, and a transfer mechanism for transferring cylinders from the conveying mechanism to the feeding mechanism. The welding mechanisms are arranged along the conveying direction of the conveying mechanism.

[0008] The conveying mechanism includes several conveyor belts rotatably connected to the frame and a conveying drive component that drives the conveyor belts to move. The conveyor belts are arranged in two rows, and the steel cylinders are arranged between the two rows of conveyor belts and abut against the upper end face of the conveyor belts. The axis of the steel cylinders is parallel to the conveying direction of the conveyor belts.

[0009] The feeding mechanism includes a sliding seat slidably mounted on the frame, a support block slidably mounted on the sliding seat, a feeding vertical drive component that drives the support block to move vertically, and a feeding horizontal drive component that drives the sliding seat to move horizontally. The sliding direction of the sliding seat is perpendicular to the conveying direction of the gas cylinder, and the gas cylinder is mounted on the support block.

[0010] The transfer mechanism includes a rotating shaft rotatably connected to the frame, a plurality of transfer components circumferentially arranged on the side wall of the rotating shaft, and a transfer drive component that drives the transfer components to rotate. The transfer components include a plurality of transfer rods arranged along the axis of the rotating shaft. The axis of rotation of the rotating shaft is parallel to the conveying direction of the cylinder. Adjacent transfer components are arranged at right angles. The conveyor belts are arranged along the conveying direction of the cylinder. The transfer rods pass between adjacent conveyor belts. Adjacent transfer components simultaneously abut against the outer wall of the cylinder and drive the cylinder to rotate. Adjacent transfer components abut against the outer wall of the cylinder arranged on the support block.

[0011] By adopting the above technical solution, the transfer rod applies force to the two pre-welded steel cylinder halves at the same time. When moving, both steel cylinder halves are subjected to the upward force applied by the transfer rod, and the connection between the two steel cylinder halves will be subjected to the mutual abutting force, thereby reducing the force on the weld joint at the connection between the two steel cylinder halves and making the weld joint less prone to deformation.

[0012] Optionally: The end of the transfer rod away from the rotating shaft is provided with an inclined extension rod, and the end of the extension rod away from the transfer rod is inclined in the direction of rotation of the transfer rod.

[0013] By adopting the above technical solution, during the process of the transfer rod moving the cylinder upward, the cylinder will be subject to centrifugal force away from the axis of rotation and will have a tendency to move away from the axis of rotation. The extension rod is used to prevent the cylinder from moving in a direction away from the axis of rotation, so that the process of the transfer rod transferring the cylinder is not easily affected.

[0014] Optional: The frame is provided with a limiting mechanism to restrict the movement of the cylinder toward the conveying direction. The limiting mechanism includes a limiting rod slidably mounted on the frame and a limiting drive component that drives the limiting rod to move vertically. The limiting rod is used to abut against the end of the cylinder facing the conveying direction to restrict the movement of the cylinder. Several rollers are rotatably connected to the side wall of the conveyor belt that contacts the cylinder, and the rollers abut against the outer wall of the cylinder.

[0015] By adopting the above technical solution, when the cylinder needs to be moved to the support block during the conveying process driven by the conveying mechanism, the movement of the cylinder is limited by the limiting block, so that the cylinder remains stationary and can be moved stably to the support block.

[0016] Optionally: The frame is provided with a support mechanism for supporting the gas cylinder. The support mechanism is located between adjacent columns of conveyor belts and at the separation position of adjacent conveyor belts in the same column. The support mechanism includes two sliding blocks that are slidably mounted on the frame and a sliding elastic member that pushes the two sliding blocks to abut against each other. The sliding direction of the sliding blocks is parallel to the conveying direction of the gas cylinder. The transfer rod can pass between the two sliding blocks. Guide slopes are provided on the side walls of the sliding blocks that are close to each other. The lower ends of the two guide slopes are far apart from each other. The transfer rod abuts against the guide slopes and pushes the two sliding blocks to move. The upper end of the sliding block abuts against the gas cylinder.

[0017] By adopting the above technical solution, the cylinder is supported by a support mechanism, so that the cylinder can remain horizontal when passing between two conveyor belts, and the two sliding blocks can separate from each other during the movement of the transfer rod, so that the movement of the transfer rod is not easily affected.

[0018] Optionally, the transfer rod is provided with a relief groove on the side wall facing its rotation direction, and the sliding block is located in the relief groove when the transfer rod is placed at the lower end of the steel cylinder on the conveyor belt.

[0019] By adopting the above technical solution, the transfer rod located below the gas cylinder can be kept in a horizontal state, so that the normal movement of the gas cylinder is not easily obstructed.

[0020] Optionally, the sliding seat is further provided with a feeding mechanism for removing the welded steel cylinder from the welding mechanism. The feeding mechanism includes a feeding block slidably disposed on the sliding seat and a feeding drive component that drives the feeding block to reciprocate. The feeding mechanism is disposed on the side of the support block away from the conveying mechanism, and the upper end of the feeding block abuts against the steel cylinder.

[0021] By adopting the above technical solution, when the unloading block removes the welded steel cylinder, the support block can simultaneously move the pre-welded steel cylinder between the two grippers, thereby shortening the downtime and increasing the welding efficiency.

[0022] Optionally, the feeding mechanism further includes a feeding plate for removing the welded cylinder from the feeding block. A feeding conveyor for conveying the welded cylinder is provided on the side of the welding mechanism away from the transfer mechanism. The end of the feeding plate away from the transfer mechanism is inclined downwards, and the inclined end of the feeding plate is close to the feeding conveyor. A receiving groove is provided on the end of the feeding plate close to the sliding seat. The feeding plate moves into the receiving groove and the upper part of the feeding plate can be lowered to below the feeding plate.

[0023] By adopting the above technical solution, after the welded steel cylinder is moved to the unloading plate, the unloading block descends below the unloading plate, and the steel cylinder detaches from the unloading plate and moves along the unloading plate to the unloading shrinkage inner workpiece. During the unloading process, there is no need to set up a mechanical structure to move the steel cylinder, making the unloading of the steel cylinder more convenient.

[0024] Optionally, the welding mechanism includes two transverse frames slidably mounted on the frame, transverse drive components that drive the transverse frames to move horizontally, grippers that are rotatably connected to the transverse frames, a rotary drive component that drives the grippers to rotate, a welding head for welding, and a welding drive component that drives the welding head to move. The grippers abut against both ends of the gas cylinder, and the welding head is positioned above the gas cylinder with its welding end used to connect to the gas cylinder.

[0025] By adopting the above technical solution, when the pre-welded steel cylinder is moved between the two clamps, the two clamps move closer to each other to clamp the steel cylinder, and then welding is performed.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. When the pre-welded steel cylinder is moved from the conveying mechanism to the feeding mechanism, the transfer rod can apply force to the two half-cylinders at the same time, and the connection of the two half-cylinders can abut against each other, thereby reducing the pressure on the weld point, making the weld point less prone to deformation, keeping the two half-cylinders aligned on the axis, and making the quality of the steel cylinder after subsequent welding less likely to be affected.

[0028] 2. When the cylinder passes between the two conveyor belts, the support mechanism supports the cylinder, keeping it in a horizontal position. The two sliding blocks can slide, allowing the transfer rod to pass between them, thus preventing the movement of the transfer rod from being easily affected. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0030] Figure 2 This is a schematic diagram illustrating the structure of the conveying mechanism according to an embodiment of this application;

[0031] Figure 3 This is a schematic diagram illustrating the structure of the feeding mechanism in an embodiment of this application;

[0032] Figure 4 This is a schematic diagram illustrating the structure of the feeding mechanism in an embodiment of this application.

[0033] In the diagram, 1. Frame; 2. Welding mechanism; 21. Transverse frame; 22. Transverse drive component; 23. Gripper; 24. Rotary drive component; 25. Welding head; 26. Welding drive component; 3. Conveying mechanism; 31. Conveyor belt; 32. Conveying drive component; 33. Roller; 34. Support groove; 4. Feeding mechanism; 41. Sliding seat; 42. Support block; 43. Vertical feeding drive component; 44. Horizontal feeding drive component; 5. Transfer mechanism; 51. Rotating shaft; 52. Transfer rod; 521. Clearing groove; 53. Transfer drive component; 54. Extension rod; 6. Limiting mechanism; 61. Limiting rod; 62. Limiting drive component; 7. Supporting mechanism; 71. Sliding block; 711. Guide slope; 72. Sliding elastic component; 8. Feeding mechanism; 81. Feeding block; 82. Feeding drive component; 83. Feeding plate; 831. Receiving groove; 84. Feeding conveyor component. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses an automatic welding device for steel cylinders, such as... Figure 1 As shown, it includes a frame 1, multiple welding mechanisms 2 set on the frame 1 for welding steel cylinders, a conveying mechanism 3 for conveying pre-welded steel cylinders, a feeding mechanism 4 for moving steel cylinders to the welding mechanism 2, and a transfer mechanism 5 for transferring pre-welded steel cylinders from the conveying mechanism 3 to the feeding mechanism 4. The welding mechanism 2 is set along the conveying direction of the pre-welded steel cylinders.

[0036] The welding mechanism 2 includes two transverse frames 21 slidably mounted on a base, transverse drive members 22 that drive the two transverse frames 21 to move closer or further apart, grippers 23 rotatably connected to the transverse frames 21, a rotary drive member 24 that drives one gripper 23 to rotate, a welding head 25 for welding, and a welding drive member 26 that drives the welding head 25 to move. The moving direction of the two transverse frames 21 is parallel to the conveying direction of the pre-welded steel cylinder. In this embodiment, the transverse drive member 22 is a hydraulic cylinder. The cylinder body of the transverse drive member 22 is fixed to the frame 1 with bolts, and the piston rod of the transverse drive member 22 is connected to the transverse frame 21, thereby pushing the transverse frame 21 to move. The grippers 23 are respectively positioned close to each other on two transverse frames 21. The grippers 23 are respectively fitted onto the outer walls of both ends of the cylinder and abut against the cylinder body. After the cylinder is positioned between the grippers 23, the two transverse frames 21 move closer together, thereby clamping the ends of the cylinder and limiting its position. In this embodiment, the rotary drive 24 is a motor. The rotary drive 24 is bolted to a transverse frame 21. The output end of the rotary drive 24 is connected to a gripper 23 via a reducer, thereby driving the cylinder to rotate along its own axis after clamping it. The welding drive 26 includes a first lead screw slide and a second lead screw slide. The first lead screw slide is bolted to the frame 1, and its driving direction is parallel to the conveying direction of the pre-welded cylinder. The second lead screw slide is positioned on the slide of the first lead screw slide, perpendicular to the first lead screw slide and horizontally. The welding head 25 is positioned on the slide of the second lead screw slide. The welding head 25 is positioned above the gas cylinder, and the welding end of the welding head 25 can abut against the upper side wall of the gas cylinder to weld the gas cylinder. The welding head 25 is also equipped with a vision camera, with the camera's shooting end facing the welding end of the welding head 25, so as to detect the welding position of the welding head 25 relative to the gas cylinder.

[0037] like Figure 2 As shown, the conveying mechanism 3 includes several conveyor belts 31 rotatably connected to the frame 1 and a conveying drive component 32 that drives the conveyor belts 31 to move. Several conveying shafts are rotatably connected to the frame 1, and two sprockets are coaxially arranged on the conveying shafts. In this embodiment, the conveyor belts 31 are chains, and the conveyor belts 31 are respectively sleeved on the sprockets and thus driven to move by the sprockets. The conveyor belts 31 are arranged in two rows. Several rollers 33 are rotatably connected to the surface of the conveyor belts 31 along their length direction. The rotation axis of the rollers 33 is parallel to the axis of the conveying shaft. The frame 1 is also provided with a support groove 34 for supporting the conveyor belts 31. The support groove 34 is open at the top and horizontally arranged. The upper conveyor belt 31 is embedded in the cavity of the support groove 34 and moves, and the upper end of the conveyor belt 31 is higher than the upper end surface of the support groove 34. A gas cylinder is placed between the two rows of conveyor belts 31, and the lower end of the gas cylinder abuts against the upper end of the conveyor belt 31. The axis of the gas cylinder is parallel to the conveying direction of the conveyor belt 31.

[0038] like Figure 3 As shown, the feeding mechanism 4 includes a sliding seat 41 slidably mounted on the frame 1, a support block 42 vertically sliding on the sliding seat 41, a feeding vertical drive 43 that drives the support block 42 to move vertically, and a feeding horizontal drive 44 that drives the sliding seat 41 to move horizontally. The sliding seat 41 is located between two transverse frames 21, and the sliding direction of the sliding seat 41 is parallel to the axis of the conveyor shaft. In this embodiment, the feeding horizontal drive 44 is a lead screw slide, and the sliding seat 41 is mounted on the slide of the feeding horizontal drive 44. In this embodiment, the feeding vertical drive 43 is a cylinder. The cylinder body is bolted to the sliding seat 41, and the piston rod of the cylinder is fixed to the lower end of the support block 42, thereby driving the support block 42 to move vertically. The upper end of the support block 42 is wedge-shaped, and the gas cylinder can be placed on the upper end of the support block 42. The gas cylinder can be moved between the two grippers 23 by the transverse frame 21 so that the grippers 23 can limit the position of the gas cylinder.

[0039] like Figure 1 As shown, the transfer mechanism 5 includes a rotating shaft 51 rotatably connected to the frame 1, several transfer components circumferentially arranged on the side wall of the rotating shaft 51, and a transfer drive component 53 that drives the transfer components to rotate. In this embodiment, the rotation drive component 24 is a motor. The rotation drive component 24 is fixed to the frame 1 with bolts. The output end of the rotation drive component 24 is connected to the rotating shaft 51 through a reducer, thereby driving the rotating shaft 51 to rotate. There are four transfer components, and adjacent transfer components are arranged at ninety degrees. Each transfer component includes two transfer rods 52 arranged along the axis of the rotating shaft 51. The side wall of the transfer rod 52 facing its rotation direction abuts against the lower end of the gas cylinder. When the transfer rod 52 rotates to both sides of the support block 42, the upper end of the horizontally arranged transfer rod 52 abuts against the lower end of the gas cylinder arranged on the support block 42. There is a gap between the conveyor belts 31 in the same column, and the transfer rod 52 can pass through the gap between the adjacent conveyor belts 31 to drive the cylinder to move. The conveyor shafts connected to the sprockets between the adjacent conveyor belts 31 are connected to each other by a chain at the ends away from the transverse frame 21, so that the conveyor belts 31 can rotate synchronously.

[0040] In order to prevent the cylinder from easily detaching from the transfer rod 52 during its rotation and movement, an inclined extension rod 54 is provided at the end of the transfer rod 52 away from the rotating shaft 51. The end of the extension rod 54 away from the transfer rod 52 is inclined in the direction of rotation of the transfer rod 52. Thus, during the rotation of the transfer rod 52, the extension rod 54 restricts the movement of the cylinder away from the direction of rotation, so that the position of the cylinder relative to the transfer rod 52 can remain stable when the transfer rod 52 moves the cylinder to the support block 42.

[0041] like Figure 2As shown, when the transfer mechanism 5 transfers the cylinder from the conveying mechanism 3 to the feeding mechanism 4, it is also necessary to stop the pre-welded cylinder from moving. Therefore, the frame 1 is also equipped with multiple limiting mechanisms 6 to limit the position of the pre-welded cylinder. Each limiting mechanism 6 corresponds to a welding mechanism 2, and the limiting mechanisms 6 are located between two conveyor belts 31. The limiting mechanism 6 includes a limiting rod 61 that is slidably mounted on the frame 1 and a limiting drive member 62 that drives the limiting rod 61 to move vertically. In this embodiment, the limiting drive member 62 is a cylinder. The limiting drive member 62 is fixed to the frame 1 with bolts, and the free end of the limiting drive member 62 is connected to the limiting rod 61 to drive the limiting rod 61 to move. A distance sensor is also provided on the support block 42. The distance sensor is connected to the control backend, so that when there is no cylinder on the support block 42, the limiting block moves upward to limit the conveying of the cylinder, so that the transfer mechanism 5 transfers the cylinder to the support block 42.

[0042] Because the conveyor belts rely on sprockets for support, the gaps between adjacent conveyor belts in the same column are relatively large. When the cylinders pass between two conveyor belts, there may be a situation where the adjacent conveyor belts do not support the cylinders, causing the cylinders to move. Therefore, a support mechanism 7 is also provided on the frame 1 to support the cylinders. The support mechanism 7 includes two sliding blocks 71 slidably mounted on the frame 1 and a sliding elastic member 72 that pushes the two sliding blocks 71 closer together. The two sliding blocks 71 abut against each other. In this embodiment, the sliding elastic member 72 is a spring, and it is located at the ends of the sliding blocks 71 that are far apart from each other. The support mechanism 7 is located between two columns of conveyor belts 31. The two sliding blocks 71 can separate from each other, allowing the transfer rod 52 to pass between the two sliding blocks 71. Several support wheels are rotatably connected to the upper end of the sliding blocks 71. The support wheels are arranged along the conveying direction of the cylinders, and the upper ends of the support wheels can abut against the cylinders. Guide slopes 711 are provided on the end faces of the two sliding blocks 71 that are close to each other. The lower ends of the guide slopes 711 are far apart from each other. The transfer rod 52 can simultaneously abut against the two guide slopes 711, thereby pushing the two sliding blocks 71 away from each other, so that the transfer rod 52 can pass between the two sliding blocks 71.

[0043] like Figure 1 As shown, a clearance groove 521 is also provided on the side wall of the transfer rod 52 facing its rotation direction. Two sliding blocks 71 can be set in the clearance groove 521, so that the transfer rod 52 can remain horizontal without separating the two sliding blocks 71, so that the transfer rod 52 can move the cylinder normally without obstructing the subsequent conveying of cylinders.

[0044] like Figure 4As shown, the sliding seat 41 is also equipped with a feeding mechanism 8 for removing the welded steel cylinder from the gripper 23. The feeding mechanism 8 includes a feeding block 81 slidably disposed on the sliding seat 41 and a feeding drive component 82 that drives the feeding block 81 to move vertically. In this embodiment, the feeding drive component 82 is a cylinder. The feeding drive component 82 is fixed to the sliding seat 41 with bolts and is disposed on the side of the feeding mechanism 4 away from the transfer mechanism 5. The free end of the feeding drive component 82 is connected to the lower end of the feeding block 81. The upper end of the feeding block 81 is provided with a wedge-shaped groove. The feeding block 81 can abut against the lower end of the steel cylinder, thereby removing the steel cylinder from the gripper 23.

[0045] like Figure 4 As shown, a feeding conveyor 84 is also provided on the side of the frame 1 away from the conveying mechanism 3. The structure of the feeding conveyor 84 is the same as that of the conveying mechanism 3. The welded steel cylinders are placed on the feeding conveyor 84 for conveying. The feeding mechanism 8 also includes a feeding plate 83 that transfers the steel cylinders from the feeding block 81 to the feeding conveyor 84. The end of the feeding plate 83 away from the transfer mechanism 5 is inclined downward, and the downwardly inclined end of the feeding plate 83 is set close to the feeding conveyor 84, so that the steel cylinders roll along the feeding plate 83 onto the feeding conveyor 84. A receiving groove 831 passes through the upper end of the feeding conveyor 84. The receiving groove 831 passes through the side wall of the feeding plate 83 near the transfer mechanism 5. The feeding block 81 can move into the receiving groove 831 and descend to abut against the feeding plate 83, thereby transferring the steel cylinders from the feeding block 81 to the feeding plate 83. The frame 1 is also equipped with baffles to guide the rolling direction of the cylinders. The baffles are respectively set on both sides of the unloading section to guide the movement of the cylinders toward the unloading conveyor 84.

[0046] The implementation principle of this embodiment is as follows: The pre-welded steel cylinder moves to the vicinity of the welding mechanism 2 under the conveying mechanism 3. After the detection component detects that there is no steel cylinder on the support block 42, the limiting block rises to restrict the steel cylinder from continuing to move. The transfer rod 52 moves upward and separates the two sliding plates, passing between the two sliding plates and driving the steel cylinder to move onto the support block 42. Then the limiting block moves downward to allow the steel cylinder to continue moving along the conveying mechanism 3. After the steel cylinder welding is completed, the unloading block 81 rises and abuts against the bottom of the welded steel cylinder. The two grippers 23 separate, and the sliding seat 41 moves toward the unloading plate 83. The unloading block 81 moves above the unloading plate 83 and then descends to below the unloading plate 83. The steel cylinder moves along the unloading block to the unloading conveyor 84. The support block 42 rises and moves the steel cylinder between the two grippers 23. The two grippers 23 approach each other to clamp the steel cylinder and then weld it. The support block 42 descends, and the sliding seat 41 moves to the vicinity of the transfer mechanism 5.

[0047] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic welding device for steel cylinders, characterized in that: It includes a frame (1), several welding mechanisms (2) for welding steel cylinders, a conveying mechanism (3) for conveying steel cylinders, a feeding mechanism (4) for moving steel cylinders to the welding mechanism (2), and a transfer mechanism (5) for transferring steel cylinders from the conveying mechanism (3) to the feeding mechanism (4). The welding mechanism (2) is arranged along the conveying direction of the conveying mechanism (3). The conveying mechanism (3) includes a plurality of conveyor belts (31) rotatably connected to the frame (1) and a conveying drive (32) that drives the conveyor belts (31) to move. The conveyor belts (31) are arranged in two rows. The steel cylinder is arranged between the two rows of the conveyor belts (31) and abuts against the upper end face of the conveyor belts (31). The axis of the steel cylinder is parallel to the conveying direction of the conveyor belts (31). The feeding mechanism (4) includes a sliding seat (41) slidably disposed on the frame (1), a support block (42) slidably disposed on the sliding seat (41), a feeding vertical drive (43) that drives the support block (42) to move vertically, and a feeding horizontal drive (44) that drives the sliding seat (41) to move horizontally. The sliding direction of the sliding seat (41) is perpendicular to the conveying direction of the steel cylinder, and the steel cylinder is disposed on the support block (42). The transfer mechanism (5) includes a rotating shaft (51) rotatably connected to the frame (1), a plurality of transfer components circumferentially arranged on the side wall of the rotating shaft (51), and a transfer drive component (53) for driving the transfer components to rotate. The transfer components include a plurality of transfer rods (52) arranged along the axis of the rotating shaft (51). The rotation axis of the rotating shaft (51) is parallel to the conveying direction of the cylinder. Adjacent transfer components are arranged at right angles. The conveyor belts (31) are arranged along the conveying direction of the cylinder. The transfer rods (52) pass between adjacent conveyor belts (31). Adjacent transfer components simultaneously abut against the outer wall of the cylinder and drive the cylinder to rotate. Adjacent transfer components abut against the outer wall of the cylinder arranged on the support block (42). The frame (1) is provided with a support mechanism (7) for supporting the cylinder. The support mechanism (7) is arranged between adjacent columns of conveyor belts (31) and is located at the separation position of adjacent conveyor belts (31) in the same column. The support mechanism (7) includes two sliding blocks (71) mounted on the frame (1) and a sliding elastic member (72) that pushes the two sliding blocks (71) to abut against each other. The sliding direction of the sliding blocks (71) is parallel to the conveying direction of the cylinder. The transfer rod (52) can pass between the two sliding blocks (71). Guide slopes (711) are provided on the side walls of the sliding blocks (71) that are close to each other. (711) The lower ends are far apart from each other, the transfer rod (52) abuts against the guide slope (711) and pushes the two sliding blocks (71) to move, and the upper end of the sliding block (71) abuts against the steel cylinder; the characteristic is that: the side wall of the transfer rod (52) facing its rotation direction is provided with a relief groove (521), and when the transfer rod (52) is set at the lower end of the steel cylinder on the conveyor belt (31), the sliding block (71) is located in the relief groove (521).

2. The automatic cylinder welding device according to claim 1, characterized in that: The end of the transfer rod (52) away from the rotating shaft (51) is provided with an inclined extension rod (54), and the end of the extension rod (54) away from the transfer rod (52) is inclined toward the rotation direction of the transfer rod (52).

3. The automatic cylinder welding device according to claim 1, characterized in that: The frame (1) is provided with a limiting mechanism (6) for limiting the movement of the cylinder toward the conveying direction. The limiting mechanism (6) includes a limiting rod (61) slidably disposed on the frame (1) and a limiting drive (62) for driving the limiting rod (61) to move vertically. The limiting rod (61) is used to abut against the end of the cylinder facing the conveying direction to limit the movement of the cylinder. Several rollers (33) are rotatably connected to the side wall of the conveyor belt (31) that contacts the cylinder. The rollers (33) abut against the outer wall of the cylinder.

4. The automatic cylinder welding device according to claim 1, characterized in that: The sliding seat (41) is also provided with a feeding mechanism (8) for removing the welded steel cylinder from the welding mechanism (2). The feeding mechanism (8) includes a feeding block (81) slidably disposed on the sliding seat (41) and a feeding drive (82) for reciprocating the feeding block (81). The feeding mechanism (8) is disposed on the side of the support block (42) away from the conveying mechanism (3). The upper end of the feeding block (81) abuts against the steel cylinder.

5. The automatic cylinder welding device according to claim 4, characterized in that: The feeding mechanism (8) further includes a feeding plate (83) for removing the welded steel cylinder from the feeding block (81). The welding mechanism (2) is provided with a feeding conveyor (84) for conveying the welded steel cylinder on the side away from the transfer mechanism (5). The end of the feeding plate (83) away from the transfer mechanism (5) is inclined downward. The end of the feeding plate (83) inclined downward is close to the feeding conveyor (84). The end of the feeding plate (83) close to the sliding seat (41) is provided with a receiving groove (831). The feeding plate (83) moves into the receiving groove (831) and the upper end of the feeding plate (83) can be lowered to below the feeding plate (83).

6. The automatic cylinder welding device according to claim 1, characterized in that: The welding mechanism (2) includes two transverse frames (21) slidably mounted on the frame (1), a transverse drive (22) that drives the transverse frames (21) to move horizontally, a gripper (23) that is rotatably connected to the transverse frames (21), a rotary drive (24) that drives the gripper (23) to rotate, a welding head (25) for welding, and a welding drive (26) that drives the welding head (25) to move. The gripper (23) abuts against both ends of the cylinder, and the welding head (25) is positioned above the cylinder and the welding end of the welding head (25) is used to connect with the cylinder.

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